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4sIot5QGUtwc9g6c | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | During dehydration of alcohols to alkenes by heating with conc. H<sub>2</sub>SO<sub>4</sub> the initiation step is | [{"identifier": "A", "content": "formation of carbocation"}, {"identifier": "B", "content": "elimination of water"}, {"identifier": "C", "content": "formation of an ester"}, {"identifier": "D", "content": "protonation of alcohol molecule"}] | ["D"] | null | mcq | aieee-2003 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 0 |
wD7xPfbcf8ctAFRK | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | Acetyl bromide reacts with excess of CH<sub>3</sub>MgI followed by treatment with a saturated solution
of NH<sub>4</sub>Cl given | [{"identifier": "A", "content": "acetone"}, {"identifier": "B", "content": "acetyl iodide "}, {"identifier": "C", "content": "2- methyl -2- propanol "}, {"identifier": "D", "content": "acetamide "}] | ["C"] | null | mcq | aieee-2004 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 1 |
2nHqBAvmBhJ6Guml | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | Acid catalyzed hydration of alkenes except ethene leads to the formation of | [{"identifier": "A", "content": "primary alcohol "}, {"identifier": "B", "content": "secondary or tertiary alcohol "}, {"identifier": "C", "content": "mixture of primary and secondary alcohols "}, {"identifier": "D", "content": "mixture of secondary and tertiary alcohols "}] | ["D"] | null | mcq | aieee-2005 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 2 |
M7I9T2V8qoOi1qGw | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | The best reagent to convert pent -3- en-2-ol into pent -3-en-2-one is | [{"identifier": "A", "content": "Acidic permanganate"}, {"identifier": "B", "content": "Acidic dichromate"}, {"identifier": "C", "content": "Chromic anhydride in glacial acetic acid "}, {"identifier": "D", "content": "Pyridinium chloro \u2013 chromate"}] | ["D"] | null | mcq | aieee-2005 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 3 |
TI4fYt2BBabwcPlc | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | In the following sequence of reactions, <br/>
CH<sub>3</sub>CH<sub>2</sub>OH $$\buildrel {P + {I_2}} \over
\longrightarrow $$ A $$\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{ether}^{Mg}} $$ B $$\buildrel {HCHO} \over
\longrightarrow $$ C $$\buildrel {{H_2}O} \over
\longrightarrow $$ D<br/>
the compound ‘D’ is... | [{"identifier": "A", "content": "butanal"}, {"identifier": "B", "content": "n-butyl alcohol "}, {"identifier": "C", "content": "n-propyl alcohol "}, {"identifier": "D", "content": "propanal "}] | ["C"] | null | mcq | aieee-2007 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 4 |
F20jceMYLocIsmNj | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous
ZnCl<sub>2</sub>, is | [{"identifier": "A", "content": "2\u2013Butanol"}, {"identifier": "B", "content": "2\u2013Methylpropan\u20132\u2013ol"}, {"identifier": "C", "content": "2\u2013Methylpropanol"}, {"identifier": "D", "content": "1\u2013Butanol"}] | ["B"] | null | mcq | aieee-2010 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 5 |
OF4fQ69S9QNL7Qbo | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | An unknown alcohol is treated with the “Lucas reagent” to determine whether the alcohol is primary,
secondary or tertiary. Which alcohol reacts fastest and by what mechanism: | [{"identifier": "A", "content": "tertiary alcohol by S<sub>N</sub>1"}, {"identifier": "B", "content": "secondary alcohol by S<sub>N</sub>2"}, {"identifier": "C", "content": "tertiary alcohol by S<sub>N</sub>2"}, {"identifier": "D", "content": "secondary alcohol by S<sub>N</sub>1 "}] | ["A"] | null | mcq | jee-main-2013-offline | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 6 |
jIFtaNeZrGrvSnIr | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | The most suitable reagent for the conversion of R - CH<sub>2</sub> - OH $$\to$$ R - CHO is: | [{"identifier": "A", "content": "CrO<sub>3</sub>"}, {"identifier": "B", "content": "PCC (Pyridinium Chlorochromate)"}, {"identifier": "C", "content": "KMnO<sub>4</sub>"}, {"identifier": "D", "content": "K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>"}] | ["B"] | null | mcq | jee-main-2014-offline | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 7 |
tdjhEQYgwwe1qxvNtV9Ih | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | The gas evolved on heating CH<sub>3</sub>MgBr in methanol is : | [{"identifier": "A", "content": "HBr"}, {"identifier": "B", "content": "Methane"}, {"identifier": "C", "content": "Ethane"}, {"identifier": "D", "content": "Propane"}] | ["B"] | null | mcq | jee-main-2016-online-9th-april-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 8 |
0xVdcFmwK7EJXT4nkWYJI | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | Bouveault-Blanc reduction reaction involves : | [{"identifier": "A", "content": "Reduction of an acyl halide with H<sub>2</sub>/Pd."}, {"identifier": "B", "content": "Reduction of an ester with Na/C<sub>2</sub>H<sub>5</sub>OH."}, {"identifier": "C", "content": "Reduction of a carbonyl compound with Na/Hg and HCl."}, {"identifier": "D", "content": "Reduction of an a... | ["B"] | null | mcq | jee-main-2016-online-9th-april-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 9 |
0T30OIGXiLWPby3zBj4re | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | The major product of the following reaction is :<br/>
$${\rm{C}}{{\rm{H}}_3}{\rm{CH = CHC}}{{\rm{O}}_2}{\rm{CH_3 }}\buildrel {LiAl{H_4}} \over
\longrightarrow $$ | [{"identifier": "A", "content": "CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CHO"}, {"identifier": "B", "content": "CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CO<sub>2</sub>CH<sub>3</sub>"}, {"identifier": "C", "content": "CH<sub>3</sub>CH = CHCH<sub>2</sub>OH"}, {"identifier": "D", "content": "CH<sub>3</sub>CH<sub>2</sub... | ["C"] | null | mcq | jee-main-2019-online-9th-april-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 10 |
3S1G0WJPmCpX2z10Ng1klurc923 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | Ceric ammonium nitrate and CHCl<sub>3</sub>/alc. KOH are used for the identification of functional groups present in __________ and _______ respectively. | [{"identifier": "A", "content": "amine, alcohol"}, {"identifier": "B", "content": "alcohol, phenol"}, {"identifier": "C", "content": "alcohol, amine"}, {"identifier": "D", "content": "amine, phenol"}] | ["C"] | null | mcq | jee-main-2021-online-26th-february-evening-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 11 |
1krq60bl7 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | In the given reaction
<br/><br/>3-Bromo-2, 2-dimethyl butane $$\buildrel {{C_2}{H_5}OH} \over
\longrightarrow \mathop {'A'}\limits_{(Major\,\Pr oduct)} $$ <br/><br/>Product A is : | [{"identifier": "A", "content": "2-Ethoxy-3, 3-dimethyl butane"}, {"identifier": "B", "content": "1-Ethoxy-3, 3-dimethyl butane"}, {"identifier": "C", "content": "2-Ethoxy-2, 3-dimethyl butane"}, {"identifier": "D", "content": "2-Hydroxy-3, 3-dimethyl butane"}] | ["C"] | null | mcq | jee-main-2021-online-20th-july-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 12 |
1krq6uo5j | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | To synthesize 1.0 mole of 2-methylpropan-2-ol from Ethylethanoate ___________ equivalents of CH<sub>3</sub>MgBr Reagent will be required. (Integer value) | [] | null | null | integer | jee-main-2021-online-20th-july-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 13 |
1ktiauoy6 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). <br/><br/>Assertion (A) : Treatment of bromine water with propene yields 1-bromopropan-2-ol.<br/><br/>Reason (R) : Attack of water on bromonium ion follows Markovnikov rule and results in 1-bromopropan-2-ol.<br/><... | [{"identifier": "A", "content": "Both (A) and (R) are true but (R) is not the correct explanation of (A)"}, {"identifier": "B", "content": "(A) is false but (R) is true"}, {"identifier": "C", "content": "Both (A) and (R) are true and (R) is the correct explanation of (A)"}, {"identifier": "D", "content": "(A) is true b... | ["C"] | null | mcq | jee-main-2021-online-31st-august-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 14 |
1l54zeapq | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>The number of chiral alcohol(s) with molecular formula C<sub>4</sub>H<sub>10</sub>O is ________.</p> | [] | null | null | integer | jee-main-2022-online-29th-june-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 15 |
1l5bdivfj | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>Hex-4-ene-2-ol on treatment with PCC gives 'A'. 'A' on reaction with sodium hypoiodite gives 'B', which on further heating with soda lime gives 'C'. The compound 'C' is :</p> | [{"identifier": "A", "content": "2-pentene"}, {"identifier": "B", "content": "proponaldehyde"}, {"identifier": "C", "content": "2-butene"}, {"identifier": "D", "content": "4-methylpent-2-ene"}] | ["C"] | null | mcq | jee-main-2022-online-24th-june-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 16 |
1l6e1u9l1 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>Given below are two statements :</p>
<p>Statement I : On heating with $$\mathrm{KHSO}_{4}$$, glycerol is dehydrated and acrolein is formed.</p>
<p>Statement II : Acrolein has fruity odour and can be used to test glycerol's presence.</p>
<p>Choose the correct option.</p> | [{"identifier": "A", "content": "Both Statement I and Statement II are correct."}, {"identifier": "B", "content": "Both Statement I and Statement II are incorrect."}, {"identifier": "C", "content": "Statement I is correct but Statement II is incorrect."}, {"identifier": "D", "content": "Statement I is incorrect but Sta... | ["C"] | null | mcq | jee-main-2022-online-25th-july-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 17 |
1l6rkwll0 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>When ethanol is heated with conc. $$\mathrm{H}_{2} \mathrm{SO}_{4}$$, a gas is produced. The compound formed, when this gas is treated with cold dilute aqueous solution of Baeyer's reagent, is</p> | [{"identifier": "A", "content": "formaldehyde"}, {"identifier": "B", "content": "formic acid"}, {"identifier": "C", "content": "glycol"}, {"identifier": "D", "content": "ethanoic acid"}] | ["C"] | null | mcq | jee-main-2022-online-29th-july-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 18 |
1ldsc9ica | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>A solution of $$\mathrm{Cr O_5}$$ in amyl alcohol has a __________ colour.</p> | [{"identifier": "A", "content": "Yellow"}, {"identifier": "B", "content": "Orange-Red"}, {"identifier": "C", "content": "Green"}, {"identifier": "D", "content": "Blue"}] | ["D"] | null | mcq | jee-main-2023-online-29th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 19 |
1ldsduqv0 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>The denticity of the ligand present in the Fehling's reagent is ___________.</p> | [] | null | null | integer | jee-main-2023-online-29th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 20 |
1lgvurueq | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>Incorrect method of preparation for alcohols from the following is:</p> | [{"identifier": "A", "content": "Hydroboration-oxidation of alkene."}, {"identifier": "B", "content": "Reaction of Ketone with $$\\mathrm{RMgBr}$$ followed by hydrolysis."}, {"identifier": "C", "content": "Ozonolysis of alkene."}, {"identifier": "D", "content": "Reaction of alkyl halide with aqueous $$\\mathrm{NaOH}$$.... | ["C"] | null | mcq | jee-main-2023-online-10th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 21 |
1lh02rkk8 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.</p>
<p>Assertion A: Butan -1- ol has higher boiling point than ethoxyethane.</p>
<p>Reason R: Extensive hydrogen bonding leads to stronger association of molecules.</p>
<p>In the light of the above statements, choos... | [{"identifier": "A", "content": "A is false but R is true"}, {"identifier": "B", "content": "Both A and R are true but R is not the correct explanation of A"}, {"identifier": "C", "content": "Both A and R are true and R is the correct explanation of A"}, {"identifier": "D", "content": "A is true but R is false"}] | ["C"] | null | mcq | jee-main-2023-online-8th-april-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 22 |
1lh03g9az | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>The water gas on reacting with cobalt as a catalyst forms</p> | [{"identifier": "A", "content": "Methanoic acid"}, {"identifier": "B", "content": "Methanol"}, {"identifier": "C", "content": "Methanal"}, {"identifier": "D", "content": "Ethanol"}] | ["B"] | null | mcq | jee-main-2023-online-8th-april-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 23 |
1lh334lwn | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>Among the following, the number of compounds which will give positive iodoform reaction is _________</p>
<p>(a) 1-Phenylbutan-2-one</p>
<p>(b) 2-Methylbutan-2-ol</p>
<p>(c) 3-Methylbutan-2-ol</p>
<p>(d) 1-Phenylethanol</p>
<p>(e) 3,3-dimethylbutan-2-one</p>
<p>(f) 1-Phenylpropan-2-ol</p> | [] | null | null | integer | jee-main-2023-online-6th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 24 |
jaoe38c1lse7anlk | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-alcohols | <p>Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:</p>
<p>Assertion A: Alcohols react both as nucleophiles and electrophiles.</p>
<p>Reason R: Alcohols react with active metals such as sodium, potassium and aluminum to yield corresponding alkoxides and liberate hydr... | [{"identifier": "A", "content": "$$A$$ is false but $$R$$ is true.\n"}, {"identifier": "B", "content": "Both $$A$$ and $$R$$ are true but $$R$$ is NOT the correct explanation of $$A$$.\n"}, {"identifier": "C", "content": "Both $$A$$ and $$R$$ are true and $$R$$ is the correct explanation of $$A$$.\n"}, {"identifier": "... | ["B"] | null | mcq | jee-main-2024-online-31st-january-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 25 |
rKpvjN3h9RhkMatE | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-ethers | An ethar is more volatile than an alcohol having the same molecular formula. This is due to | [{"identifier": "A", "content": "alcohols having resonance structures"}, {"identifier": "B", "content": "inter-molecular hydrogen bonding in ethers"}, {"identifier": "C", "content": "inter-molecular hydrogen bonding in alcohols"}, {"identifier": "D", "content": "dipole characters of ethers"}] | ["C"] | null | mcq | aieee-2003 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 26 |
plPnh9m4gar6Qxf5 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-ethers | HBr reacts with CH<sub>2</sub> = CH – OCH<sub>3</sub> under anhydrous conditions at room temperature to give | [{"identifier": "A", "content": "CH<sub>3</sub>CHO and CH<sub>3</sub>Br "}, {"identifier": "B", "content": "BrCH<sub>2</sub>CHO and CH<sub>3</sub>OH"}, {"identifier": "C", "content": "BrCH<sub>2</sub> \u2013 CH<sub>2</sub> \u2013 OCH<sub>3</sub> "}, {"identifier": "D", "content": "H<sub>3</sub>C \u2013 CHBr \u2013 OCH<... | ["D"] | null | mcq | aieee-2006 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 27 |
1kteci83s | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-ethers | Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). <br/><br/>Assertion (A) : Synthesis of ethyl phenyl ether may be achieved by Williamson synthesis.<br/><br/>Reason (R) : Reaction of bromobenzene with sodium ethoxide yields ethyl phenyl ether.<br/><br/>In the lig... | [{"identifier": "A", "content": "Both (A) and (R) are correct and (R) is the correct explanation of (A)"}, {"identifier": "B", "content": "(A) is correct but (R) is not correct"}, {"identifier": "C", "content": "(A) is not correct but (R) is correct"}, {"identifier": "D", "content": "Both (A) and (R) are correct but (R... | ["B"] | null | mcq | jee-main-2021-online-27th-august-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 28 |
1lgq4gt4t | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-ethers | <p>2-Methyl propyl bromide reacts with $$\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{O}^{-}$$ and gives 'A' whereas on reaction with $$\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$$ it gives 'B'. The mechanism followed in these reactions and the products 'A' and 'B' respectively are :</p> | [{"identifier": "A", "content": "$$\\mathrm{S}_{N} 1, A=$$ tert-butyl ethyl ether; $$\\mathrm{S}_{N} 2, B=$$ iso-butyl ethyl ether"}, {"identifier": "B", "content": "$$\\mathrm{S}_{\\mathrm{N}} 1, \\mathrm{~A}=$$ tert-butyl ethyl ether; $$\\mathrm{S}_{\\mathrm{N}} 1, \\mathrm{~B}=$$ 2-butyl ethyl ether"}, {"identifier"... | ["C"] | null | mcq | jee-main-2023-online-13th-april-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 29 |
1lgyh8qi0 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-ethers | <p>Suitable reaction condition for preparation of Methyl phenyl ether is</p> | [{"identifier": "A", "content": "Benzene, MeBr"}, {"identifier": "B", "content": "$$\\mathrm{Ph{O^\\Theta }N{a^ \\oplus }}$$, MeBr"}, {"identifier": "C", "content": "Ph - Br, $$\\mathrm{Me{O^\\Theta }N{a^ \\oplus }}$$"}, {"identifier": "D", "content": "$$\\mathrm{Ph{O^\\Theta }N{a^ \\oplus }}$$, MeOH"}] | ["B"] | null | mcq | jee-main-2023-online-10th-april-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 30 |
7Mv4P7zHHsSe0WjW | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | Phenyl magnesium bromide reacts with methanol to give | [{"identifier": "A", "content": "a mixture of anisole and Mg(OH)Br"}, {"identifier": "B", "content": "a mixture of benzene and Mg(OMe)Br "}, {"identifier": "C", "content": "a mixture of toluene and Mg(OH)Br"}, {"identifier": "D", "content": "a mixture of phenol and Mg(Me)Br"}] | ["B"] | null | mcq | aieee-2006 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 31 |
CNnkpxmvwOadc5tt | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid,
gives | [{"identifier": "A", "content": "2,4,6-trinitrobenzene"}, {"identifier": "B", "content": "o-nitrophenol "}, {"identifier": "C", "content": "p-nitrophenol "}, {"identifier": "D", "content": "nitrobenzene "}] | ["B"] | null | mcq | aieee-2008 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 32 |
4HLMIyteMTWXUX9g | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is : | [{"identifier": "A", "content": "benzoic acid "}, {"identifier": "B", "content": "salicylaldehyde "}, {"identifier": "C", "content": "salicylic acid"}, {"identifier": "D", "content": "phthalic acid "}] | ["C"] | null | mcq | aieee-2009 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 33 |
RRpobofkpARvU8XC | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | Phenol is heated with a solution of mixture of KBr and KBrO<sub>3</sub>. The major product obtained in the above
reaction is | [{"identifier": "A", "content": "3-Bromophenol"}, {"identifier": "B", "content": "4-Bromophenol"}, {"identifier": "C", "content": "2, 4, 6- Tribromophenol "}, {"identifier": "D", "content": "2-Bromophenol "}] | ["C"] | null | mcq | aieee-2011 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 34 |
nzFCxAyY4jwP8rrB | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | Ortho–Nitrophenol is less soluble in water than p– and m– Nitrophenols because : | [{"identifier": "A", "content": "o\u2013Nitrophenol is more volatile in steam than those of m \u2013 and p\u2013isomers"}, {"identifier": "B", "content": "o\u2013Nitrophenol shows Intramolecular H\u2013bonding"}, {"identifier": "C", "content": "o\u2013Nitrophenol shows Intermolecular H\u2013bonding"}, {"identifier": "D... | ["B"] | null | mcq | aieee-2012 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 35 |
3G6dabpylT237sDCoJ7k9k2k5h0ozpj | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | Arrange the following compounds in increasing order of C–OH bond length : <br/>methanol, phenol,
p-ethoxyphenol | [{"identifier": "A", "content": "phenol < methanol < p-ethoxyphenol"}, {"identifier": "B", "content": "methanol < p-ethoxyphenol < phenol"}, {"identifier": "C", "content": "methanol < phenol < p-ethoxyphenol"}, {"identifier": "D", "content": "phenol < p-ethoxyphenol < methanol"}] | ["D"] | null | mcq | jee-main-2020-online-8th-january-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 36 |
T7Are9JtWbXBKZG9ekjgy2xukg4n4p3l | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | A solution of phenol in chloroform when treated
with aqueous NaOH gives compound P as a
major product. The mass percentage of carbon
in P is ______. (to the nearest integer)
<br/>(Atomic mass : C = 12; H = 1; O = 16) | [] | null | null | integer | jee-main-2020-online-6th-september-evening-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 37 |
NKOpVAGoGWm7IuwX5F1kludvp91 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | Given below are two statements : <br/><br/>Statement I : o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding.<br/><br/>Statement II : o-Nitrophenol has high melting due to hydrogen bonding.<br/><br/>In the light of the above statements, choose the most appropriate answer from the options given below ... | [{"identifier": "A", "content": "Both Statement I and Statement II are true"}, {"identifier": "B", "content": "Statement I is true but Statement II is false"}, {"identifier": "C", "content": "Statement I is false but Statement II is true"}, {"identifier": "D", "content": "Both Statement I and Statement II are false"}] | ["B"] | null | mcq | jee-main-2021-online-26th-february-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 38 |
1l549ulcc | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Given below are two statements :</p>
<p>Statement I : Phenols are weakly acidic.</p>
<p>Statement II : Therefore they are freely soluble in NaOH solution and are weaker acids than alcohols and water.</p>
<p>Choose the most appropriate option :</p> | [{"identifier": "A", "content": "Both Statement I and Statement II are correct."}, {"identifier": "B", "content": "Both Statement I and Statement II are incorrect."}, {"identifier": "C", "content": "Statement I is correct but Statement II is incorrect."}, {"identifier": "D", "content": "Statement I is incorrect but Sta... | ["C"] | null | mcq | jee-main-2022-online-29th-june-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 39 |
1l58eqla0 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Compound 'P' on nitration with dil. HNO<sub>3</sub> yields two isomers (A) and (B). These isomers can be separated by steam distillation. Isomers (A) and (B) show the intramolecular and intermolecular hydrogen bonding respectively. Compound (P) on reaction with conc. HNO<sub>3</sub> yields a yellow compound 'C', a s... | [] | null | null | integer | jee-main-2022-online-26th-june-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 40 |
1l6gqp075 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>The difference in the reaction of phenol with bromine in chloroform and bromine in water medium is due to :</p>
| [{"identifier": "A", "content": "Hyperconjugation in substrate"}, {"identifier": "B", "content": "Polarity of solvent"}, {"identifier": "C", "content": "Free radical formation"}, {"identifier": "D", "content": "Electromeric effect the substrate"}] | ["B"] | null | mcq | jee-main-2022-online-26th-july-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 41 |
1l6i5icdc | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Hydrolysis of which compound will give carbolic acid?</p> | [{"identifier": "A", "content": "Cumene"}, {"identifier": "B", "content": "Benzenediazonium chloride"}, {"identifier": "C", "content": "Benzal chloride"}, {"identifier": "D", "content": "Ethylene glycol ketal"}] | ["B"] | null | mcq | jee-main-2022-online-26th-july-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 42 |
1ldsruan5 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>The increasing order of $$\mathrm{pK_a}$$ for the following phenols is</p>
<p>(A) 2, 4 - Dinitrophenol</p>
<p>(B) 4 - Nitrophenol</p>
<p>(C) 2, 4, 5 - Trimethylphenol</p>
<p>(D) Phenol</p>
<p>(E) 3-Chlorophenol</p>
<p>Choose the correct answer from the option given below :</p> | [{"identifier": "A", "content": "(A), (E), (B), (D), (C)"}, {"identifier": "B", "content": "(C), (E), (D), (B), (A)"}, {"identifier": "C", "content": "(C), (D), (E), (B), (A)"}, {"identifier": "D", "content": "(A), (B), (E), (D), (C)"}] | ["D"] | null | mcq | jee-main-2023-online-29th-january-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 43 |
1ldu1ahil | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R</p>
<p>Assertion A : Butylated hydroxy anisole when added to butter increases its shelf life.</p>
<p>Reason R : Butylated hydroxy anisole is more reactive towards oxygen than food.</p>
<p>In the light of the above st... | [{"identifier": "A", "content": "A is correct but R is not correct"}, {"identifier": "B", "content": "Both A and R are correct but R is NOT the correct explanation of A"}, {"identifier": "C", "content": "Both A and R are correct and R is the correct explanation of A"}, {"identifier": "D", "content": "A is not correct b... | ["C"] | null | mcq | jee-main-2023-online-25th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 44 |
1ldukx6yj | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :</p>
<p>Assertion A : Acetal / Ketal is stable in basic medium.</p>
<p>Reason R : The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.</p>
<p>In the light of the above stat... | [{"identifier": "A", "content": "A is false but R is true."}, {"identifier": "B", "content": "Both A and R are true but R is NOT the correct explanation of A"}, {"identifier": "C", "content": "Both A and R are true and R is the correct explanation of A"}, {"identifier": "D", "content": "A is true but R is false."}] | ["D"] | null | mcq | jee-main-2023-online-25th-january-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 45 |
lsaokiln | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | Match <b>List - I</b> with <b>List - II</b>.
<br/><br/>
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<th>List I (Reactants)</th>
... | [{"identifier": "A", "content": "(A)-(IV), (B)-(I), (C)-(II), (D)-(III)"}, {"identifier": "B", "content": "(A)-(III), (B)-(I), (C)-(II), (D)-(IV)"}, {"identifier": "C", "content": "(A)-(IV), (B)-(II), (C)-(I), (D)-(III)"}, {"identifier": "D", "content": "(A)-(III), (B)-(IV), (C)-(I), (D)-(II)"}] | ["B"] | null | mcq | jee-main-2024-online-1st-february-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 46 |
jaoe38c1lsc5fpk2 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Given below are two statements :</p>
<p><b>Statement (I)</b> : p-nitrophenol is more acidic than m-nitrophenol and o-nitrophenol.</p>
<p><b>Statement (II)</b> : Ethanol will give immediate turbidity with Lucas reagent.</p>
<p>In the light of the above statements, choose the correct answer from the options given belo... | [{"identifier": "A", "content": "Statement I is true but Statement II is false\n"}, {"identifier": "B", "content": "Both Statement I and Statement II are true\n"}, {"identifier": "C", "content": "Both Statement I and Statement II are false\n"}, {"identifier": "D", "content": "Statement I is false but Statement II is tr... | ["A"] | null | mcq | jee-main-2024-online-27th-january-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 47 |
jaoe38c1lscrdfwx | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Phenolic group can be identified by a positive:</p> | [{"identifier": "A", "content": "Tollen's test\n"}, {"identifier": "B", "content": "Phthalein dye test\n"}, {"identifier": "C", "content": "Carbylamine test\n"}, {"identifier": "D", "content": "Lucas test"}] | ["B"] | null | mcq | jee-main-2024-online-27th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 48 |
jaoe38c1lse7rplh | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:</p>
<p>Assertion A: $$\mathrm{pK}_{\mathrm{a}}$$ value of phenol is 10.0 while that of ethanol is 15.9 .</p>
<p>Reason R: Ethanol is stronger acid than phenol.</p>
<p>In the light of the above statements, choose the... | [{"identifier": "A", "content": "A is false but R is true.\n"}, {"identifier": "B", "content": "Both $$A$$ and $$R$$ are true but $$R$$ is NOT the correct explanation of $$A$$.\n"}, {"identifier": "C", "content": "Both $$\\mathrm{A}$$ and $$\\mathrm{R}$$ are true and $$\\mathrm{R}$$ is the correct explanation of $$\\ma... | ["D"] | null | mcq | jee-main-2024-online-31st-january-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 49 |
jaoe38c1lsfpbasr | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Phenol treated with chloroform in presence of sodium hydroxide, which further hydrolyzed in presence of an acid results</p> | [{"identifier": "A", "content": "Salicylic acid\n"}, {"identifier": "B", "content": "Benzene-1,2-diol\n"}, {"identifier": "C", "content": "2-Hydroxybenzaldehyde\n"}, {"identifier": "D", "content": "Benzene-1,3-diol"}] | ["C"] | null | mcq | jee-main-2024-online-29th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 50 |
jaoe38c1lsfpdgky | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Match List I with List II</p>
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.tg th{border-color:black;border-style:solid;bo... | [{"identifier": "A", "content": "A-I, B-II, C-III, D-IV\n"}, {"identifier": "B", "content": "A-IV, B-I, C-II, D-III\n"}, {"identifier": "C", "content": "A-II, B-I, C-IV, D-III\n"}, {"identifier": "D", "content": "A-III, B-IV, C-I, D-II"}] | ["C"] | null | mcq | jee-main-2024-online-29th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 51 |
lv2erzhd | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Common name of Benzene - 1,2 - diol is -</p> | [{"identifier": "A", "content": "catechol\n"}, {"identifier": "B", "content": "quinol\n"}, {"identifier": "C", "content": "o-cresol\n"}, {"identifier": "D", "content": "resorcinol"}] | ["A"] | null | mcq | jee-main-2024-online-4th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 52 |
lv3xmax0 | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Which one the following compounds will readily react with dilute $$\mathrm{NaOH}$$ ?</p> | [{"identifier": "A", "content": "$$\\mathrm{C}_6 \\mathrm{H}_5 \\mathrm{CH}_2 \\mathrm{OH}$$\n"}, {"identifier": "B", "content": "$$\\mathrm{C}_2 \\mathrm{H}_5 \\mathrm{OH}$$\n"}, {"identifier": "C", "content": "$$\\mathrm{C}_6 \\mathrm{H}_5 \\mathrm{OH}$$\n"}, {"identifier": "D", "content": "$$\\left(\\mathrm{CH}_3\\r... | ["C"] | null | mcq | jee-main-2024-online-8th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 53 |
lv7v49oe | chemistry | alcohols-phenols-and-ethers | properties,-preparation-and-uses-of-phenols | <p>Given below are two statement :</p>
<p>Statements I : Bromination of phenol in solvent with low polarity such as $$\mathrm{CHCl}_3$$ or $$\mathrm{CS}_2$$ requires Lewis acid catalyst.</p>
<p>Statements II : The Lewis acid catalyst polarises the bromine to generate $$\mathrm{Br}^{+}$$.</p>
<p>In the light of the abov... | [{"identifier": "A", "content": "Statement I is true but Statement II is false\n"}, {"identifier": "B", "content": "Both Statement I and Statement II are true\n"}, {"identifier": "C", "content": "Statement I is false but Statement II is true\n"}, {"identifier": "D", "content": "Both Statement I and Statement II are fal... | ["C"] | null | mcq | jee-main-2024-online-5th-april-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 54 |
0Bv6DPFm7zDrQND5 | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | Which one of the following reduced with zinc and hydrochloric acid to give the corresponding
hydrocarbon? | [{"identifier": "A", "content": "Ethyl acetate "}, {"identifier": "B", "content": "Butan -2-one "}, {"identifier": "C", "content": "Acetamide"}, {"identifier": "D", "content": "Acetic acid"}] | ["B"] | null | mcq | aieee-2004 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 55 |
oEYSqKy4Jhv50vE1 | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | Trichloroacetaldehyde was subjected to Cannizzaro’s reaction by using NaOH. The mixture of the
products contains sodium trichloroacetate and another compound. The other compound is : | [{"identifier": "A", "content": "Trichloromethanol"}, {"identifier": "B", "content": "2, 2, 2-Trichloropropanol"}, {"identifier": "C", "content": "Chloroform"}, {"identifier": "D", "content": "2, 2, 2-Trichloroethanol "}] | ["D"] | null | mcq | aieee-2011 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 56 |
vrPW5hzwZvj1eZf3axXNC | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | Which of the following compounds will most readily be dehydrated to give alkene under acidic condition ? | [{"identifier": "A", "content": "1- Pentanol "}, {"identifier": "B", "content": "4-Hydroxypentan - 2-one"}, {"identifier": "C", "content": "3-Hydroxypentan - 2-one"}, {"identifier": "D", "content": "2-Hydroxycyclopentanone"}] | ["B"] | null | mcq | jee-main-2018-online-16th-april-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 57 |
Y4rUeNIEPtXtMeYCjysPe | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | In the following reaction :
<br/><br/> Aldehyde + Alcohol $$\buildrel {HCl} \over
\longrightarrow $$ Acetal
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.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:0px;overf... | [{"identifier": "A", "content": "CH<sub>3</sub>CHO and MeOH"}, {"identifier": "B", "content": "HCHO and MeOH"}, {"identifier": "C", "content": "CH<sub>3</sub>CHO and tBuOH"}, {"identifier": "D", "content": "HCHO and tBuOH "}] | ["B"] | null | mcq | jee-main-2019-online-12th-january-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 58 |
J5jOWF2pEgg7ZkxWJNjgy2xukf3lmbbq | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | The increasing order of the reactivity of the
following compound in nucleophilic addition
reaction is :
<br/><br/>Propanal, Benzaldehyde, Propanone, Butanone | [{"identifier": "A", "content": "Butanone < Propanone < Benzaldehyde <\nPropanal"}, {"identifier": "B", "content": "Benzaldehyde < Butanone < Propanone <\nPropanal"}, {"identifier": "C", "content": "Propanal < Propanone < Butanone <\nBenzaldehyde"}, {"identifier": "D", "content": "Benzaldehyd... | ["A"] | null | mcq | jee-main-2020-online-3rd-september-evening-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 59 |
j4e8FzqKoN8xZ8DFKE1kmht1tzs | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | Assertion A : Enol form of acetone [CH<sub>3</sub>COCH<sub>3</sub>] exists in < 0.1% quantity. However, the enol form of acetyl acetone [CH<sub>3</sub>COCH<sub>2</sub>OCCH<sub>3</sub>] exists in approximately 15% quantity.<br/><br/>Reason R : Enol form of acetyl acetone is stabilized by intramolecular hydrogen bondi... | [{"identifier": "A", "content": "Both A and R are true but R is not the correct explanation of A"}, {"identifier": "B", "content": "A is true but R is false"}, {"identifier": "C", "content": "A is false but R is true"}, {"identifier": "D", "content": "Both A and R are true and R is the correct explanation of A"}] | ["D"] | null | mcq | jee-main-2021-online-16th-march-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 60 |
1ktn03hi6 | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | Experimentally reducing a functional group cannot be done by which one of the following reagents? | [{"identifier": "A", "content": "Pt-C/H<sub>2</sub>"}, {"identifier": "B", "content": "Na/H<sub>2</sub>"}, {"identifier": "C", "content": "Pd-C/H<sub>2</sub>"}, {"identifier": "D", "content": "Zn/H<sub>2</sub>O"}] | ["B"] | null | mcq | jee-main-2021-online-1st-september-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 61 |
1ktn1d14v | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | Given below are two statements :<br/><br/>Statement I : The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion.<br/><br/>Statement II : The nucleophilic addition of hydrogen cyanide to an aldehyde or a ketone yields amine as final product.<br/><br/... | [{"identifier": "A", "content": "Both Statement I and Statement are true."}, {"identifier": "B", "content": "Statement I is true but Statement II is false."}, {"identifier": "C", "content": "Statement I is false but Statement II is true."}, {"identifier": "D", "content": "Both Statement I and Statement II are false."}... | ["B"] | null | mcq | jee-main-2021-online-1st-september-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 62 |
1l5w73iym | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | <p>A hydrocarbon 'X' is found to have molar mass of 80. A 10.0 mg of compound 'X' on hydrogenation consumed 8.40 mL of H<sub>2</sub> gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of fragments/molecules produced from the ozonolysis of compound 'X' is ________... | [] | null | null | integer | jee-main-2022-online-30th-june-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 63 |
1l6rm2xou | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | <p>The number of stereoisomers formed in a reaction of $$(±)\mathrm{Ph}(\mathrm{C}=\mathrm{O}) \mathrm{C}(\mathrm{OH})(\mathrm{CN}) \mathrm{Ph}$$ with $$\mathrm{HCN}$$ is ___________.</p>
<p>$$\left[\right.$$where $$\mathrm{Ph}$$ is $$-\mathrm{C}_{6} \mathrm{H}_{5}$$]</p> | [] | null | null | integer | jee-main-2022-online-29th-july-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 64 |
lv0vy3rc | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | <p>Given below are two statements :</p>
<p>Statements I : Acidity of $$\alpha$$-hydrogens of aldehydes and ketones is responsible for Aldol reaction.</p>
<p>Statement II : Reaction between benzaldehyde and ethanal will NOT give Cross - Aldol product.</p>
<p>In the light of the above statements, choose the most appropri... | [{"identifier": "A", "content": "Both Statement I and Statement II are incorrect\n"}, {"identifier": "B", "content": "Statement I is correct but Statement II is incorrect\n"}, {"identifier": "C", "content": "Both Statement I and Statement II are correct\n"}, {"identifier": "D", "content": "Statement I is incorrect but ... | ["B"] | null | mcq | jee-main-2024-online-4th-april-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 65 |
lv2ers6s | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | <p>Vanillin compound obtained from vanilla beans, has total sum of oxygen atoms and $$\pi$$ electrons is __________.</p> | [] | null | null | integer | jee-main-2024-online-4th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 66 |
lv40vbat | chemistry | aldehydes-ketones-and-carboxylic-acids | chemical-reactions-for-aldehydes-and-ketones | <p>Two moles of benzaldehyde and one mole of acetone under alkaline conditions using aqueous $$\mathrm{NaOH}$$ after heating gives $$x$$ as the major product. The number of $$\pi$$ bonds in the product $$x$$ is ______.</p> | [] | null | null | integer | jee-main-2024-online-8th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 67 |
lzFvSWBY3RV0kYkv | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of
an acid forms a compound if water during the reaction is continuously removed. The
compound formed is generally known as | [{"identifier": "A", "content": "a Schiff\u2019s base"}, {"identifier": "B", "content": "an enamine "}, {"identifier": "C", "content": "an imine"}, {"identifier": "D", "content": "an amine"}] | ["B"] | null | mcq | aieee-2005 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 68 |
9zA5MqQEK36Q5vtUAfjgy2xukg3ed3ul | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | The correct match between Item-I (starting
material) and Item-II (reagent) for the
preparation of benzaldehyde is :
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overflow:h... | [{"identifier": "A", "content": "(I) - (R), (II) - (P) and (III) - (Q)"}, {"identifier": "B", "content": "(I) - (P), (II) - (Q) and (III) - (R)"}, {"identifier": "C", "content": "(I) - (Q), (II) - (R) and (III) - (P)"}, {"identifier": "D", "content": "(I) - (R), (II) - (Q) and (III) - (P)"}] | ["A"] | null | mcq | jee-main-2020-online-6th-september-evening-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 69 |
fuctW6ydtkJWkjVJSe1kls809rh | chemistry | aldehydes-ketones-and-carboxylic-acids | method-of-preparation-for-aldehydes | Which one of the following reactions will not form acetaldehyde? | [{"identifier": "A", "content": "$$C{H_3}C{H_2}OH\\mathrel{\\mathop{\\kern0pt\\longrightarrow}\n\\limits_{573K}^{Cu}} $$"}, {"identifier": "B", "content": "$$C{H_3}C{H_2}OH\\buildrel {Cr{O_3} - {H_2}S{O_4}} \\over\n \\longrightarrow $$"}, {"identifier": "C", "content": "$$C{H_2} = C{H_2} + {O_2}\\mathrel{\\mathop{\\ker... | ["B"] | null | mcq | jee-main-2021-online-25th-february-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 70 |
tdYf5JdeW3TWpUa1 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular
mass of 44 u. The alkene is | [{"identifier": "A", "content": "propene "}, {"identifier": "B", "content": "1\u2013butene"}, {"identifier": "C", "content": "2\u2013butene"}, {"identifier": "D", "content": "ethene"}] | ["C"] | null | mcq | aieee-2010 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 71 |
qGR0YViDBf55nYiAIp7k9k2k5h38lx6 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | The predominant intermolecular forces present in ethyl acetate, a liquid, are: | [{"identifier": "A", "content": "Dipole-dipole and hydrogen bonding"}, {"identifier": "B", "content": "hydrogen bonding and London dispersion"}, {"identifier": "C", "content": "London dispersion, dipole-dipole and hydrogen bonding"}, {"identifier": "D", "content": "London dispersion and dipole-dipole"}] | ["D"] | null | mcq | jee-main-2020-online-8th-january-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 72 |
ZjcfHEUzV3Q33VCX4S1klrdqcd3 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Which of the following reagent is used for the following reaction ?<br/><br/>
$$
\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_3 \stackrel{?}{\longrightarrow} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHO}
$$ | [{"identifier": "A", "content": "Molybdenum oxide"}, {"identifier": "B", "content": "Manganese acetate"}, {"identifier": "C", "content": "Copper at high temperature and pressure"}, {"identifier": "D", "content": "Potassium permanganate"}] | ["A"] | null | mcq | jee-main-2021-online-24th-february-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 73 |
07HBNTV4FkzqfYabzM1kmj7v421 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | Mesityl oxide is a common name of : | [{"identifier": "A", "content": "3-Methyl cyclohexane carbaldehyde"}, {"identifier": "B", "content": "4-Methyl pent-3-en-2-one"}, {"identifier": "C", "content": "2,4-Dimethyl pentan-3-one"}, {"identifier": "D", "content": "2-Methyl cyclohexanone"}] | ["B"] | null | mcq | jee-main-2021-online-17th-march-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 74 |
3bSRRUX23xRXcF3yAy1kmkjqk7u | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | The total number of C-C sigma bond/s in mesityl oxide (C<sub>6</sub>H<sub>10</sub>O) is __________. (Round off to the Nearest Integer). | [] | null | null | integer | jee-main-2021-online-17th-march-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 75 |
1l58jpzbj | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?</p> | [{"identifier": "A", "content": "CrO<sub>3</sub>/acetic acid, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "B", "content": "CrO<sub>3</sub>/acetic anhydride, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "C", "content": "KMnO<sub>4</sub>/HCl, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "D", "content": "CO/HCl, anhydrou... | ["B"] | null | mcq | jee-main-2022-online-26th-june-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 76 |
1ldr59h3z | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation-methods-for-both-aldehydes-and-ketones | <p>A trisubstituted compound '$$\mathrm{A}$$', $$\mathrm{C}_{10} \mathrm{H}_{12} \mathrm{O}_{2}$$ gives neutral $$\mathrm{FeCl}_{3}$$ test positive. Treatment of compound 'A' with $$\mathrm{NaOH}$$ and $$\mathrm{CH}_{3} \mathrm{Br}$$ gives $$\mathrm{C}_{11} \mathrm{H}_{14} \mathrm{O}_{2}$$, with hydroiodic acid gives m... | [] | null | null | integer | jee-main-2023-online-30th-january-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 77 |
1GwY3CoPZQJCcxz1 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The compound formed as a result of oxidation of ethyl benzene by KMnO<sub>4 </sub> is : | [{"identifier": "A", "content": "benzophenone"}, {"identifier": "B", "content": "acetophenone"}, {"identifier": "C", "content": "benzoic acid"}, {"identifier": "D", "content": "benzyl alcohol "}] | ["C"] | null | mcq | aieee-2007 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 78 |
06w76bwLAiXnjlNr | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | A liquid was mixed with ethanol and a drop of concentrated H<sub>2</sub>SO<sub>4</sub> was added. A compound with a
fruity smell was formed. The liquid was : | [{"identifier": "A", "content": "CH<sub>3</sub>OH "}, {"identifier": "B", "content": "HCHO"}, {"identifier": "C", "content": "CH<sub>3</sub>CO CH<sub>3</sub>"}, {"identifier": "D", "content": "CH<sub>3</sub>COOH"}] | ["D"] | null | mcq | aieee-2009 | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 79 |
Kb8TTVzKg6NPNtP2kA1kltcfnrc | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The number of compound/s given below which contain/s -COOH group is __________. (Integer answer)<br/><br/>(A) Sulphanilic acid<br/><br/>(B) Picric acid<br/><br/>(C) Aspirin<br/><br/>(D) Ascorbic acid | [] | null | null | integer | jee-main-2021-online-25th-february-evening-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 80 |
1ktb5fie5 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | The correct sequential addition of reagents in the preparation of 3-nitrobenzoic acid from benzene is : | [{"identifier": "A", "content": "Br<sub>2</sub>/AlBr<sub>3</sub>, HNO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub>, Mg/ether, CO<sub>2</sub>, H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "B", "content": "Br<sub>2</sub>/AlBr<sup>3</sup>, NaCN, H<sub>3</sub>O<sup>+</sup>, HNO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub>"}, {"ident... | ["D"] | null | mcq | jee-main-2021-online-26th-august-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 81 |
1ktfrnvnw | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Given below are two statements :<br/><br/>Statement I : Ethyl pent-4-yn-oate on reaction with CH<sub>3</sub>MgBr gives a 3$$^\circ$$-alcohol.<br/><br/>Statement II : In this reaction one mole of ethyl pent-4-yn-oate utilizes two moles of CH<sub>3</sub>MgBr.<br/><br/>In the light of the above statements, choose the most... | [{"identifier": "A", "content": "Both Statement I and Statement II are false."}, {"identifier": "B", "content": "Statement I is false but Statement II is true."}, {"identifier": "C", "content": "Statement I is true but Statement II is false."}, {"identifier": "D", "content": "Both Statement I and Statement II are true.... | ["C"] | null | mcq | jee-main-2021-online-27th-august-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 82 |
1ktfs3rzv | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Which one of the following reactions will not yield propionic acid? | [{"identifier": "A", "content": "CH<sub>3</sub>CH<sub>2</sub>COCH<sub>3</sub> + OI<sup>$$-$$</sup>/H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "B", "content": "CH<sub>3</sub>CH<sub>2</sub>CH<sub>3</sub> + KMnO<sub>4</sub>(Heat), OH<sup>$$-$$</sup>/H<sub>3</sub>O<sup>+</sup>"}, {"identifier": "C", "content": "CH<sub>3<... | ["D"] | null | mcq | jee-main-2021-online-27th-august-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 83 |
1l549nouv | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Given below are two statements :</p>
<p>Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.</p>
<p>Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.</p>
<p>Choose the most appropriate option :</p> | [{"identifier": "A", "content": "Both Statement I and Statement II are correct."}, {"identifier": "B", "content": "Both Statement I and Statement II are incorrect."}, {"identifier": "C", "content": "Statement I is correct but Statement II is incorrect."}, {"identifier": "D", "content": "Statement I is incorrect but Sta... | ["A"] | null | mcq | jee-main-2022-online-29th-june-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 84 |
1l5c6sbau | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Two statements are given below :</p>
<p>Statement I : The melting point of monocarboxylic acid with even number of carbon atoms is higher than that of with odd number of carbon atoms acid immediately below and above it in the series.</p>
<p>Statement II : The solubility of monocarboxylic acids in water decreases wit... | [{"identifier": "A", "content": "Both Statement I and Statement II are correct."}, {"identifier": "B", "content": "Both Statement I and Statement II are incorrect."}, {"identifier": "C", "content": "Statement I is correct but Statement II is incorrect."}, {"identifier": "D", "content": "Statement I is incorrect but Sta... | ["A"] | null | mcq | jee-main-2022-online-24th-june-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 85 |
1lgsybj0x | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.</p>
<p>Assertion A : A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous generates chiral carbon atom.</p>
<p>Reason R : A molecule with 2 chiral ca... | [{"identifier": "A", "content": "Both A and R are true and R is the correct explanation of A"}, {"identifier": "B", "content": "Both A and R are true but R is NOT the correct explanation of A"}, {"identifier": "C", "content": "A is true but R is false"}, {"identifier": "D", "content": "A is false but R is true"}] | ["C"] | null | mcq | jee-main-2023-online-11th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 86 |
lsaouz79 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | Which among the followng has highest boiling point? | [{"identifier": "A", "content": "$\\mathrm{CH}_3 \\mathrm{CH}_2 \\mathrm{CH}_2 \\mathrm{CH}_2-\\mathrm{OH}$"}, {"identifier": "B", "content": "$\\mathrm{CH}_3 \\mathrm{CH}_2 \\mathrm{CH}_2 \\mathrm{CH}_3$"}, {"identifier": "C", "content": "$\\mathrm{CH}_3 \\mathrm{CH}_2 \\mathrm{CH}_2 \\mathrm{CHO}$"}, {"identifier": "... | ["A"] | null | mcq | jee-main-2024-online-1st-february-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 87 |
jaoe38c1lscrzydm | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The molecular formula of second homologue in the homologous series of mono carboxylic acids is</p> | [{"identifier": "A", "content": "$$\\mathrm{C}_2 \\mathrm{H}_4 \\mathrm{O}_2$$\n"}, {"identifier": "B", "content": "$$\\mathrm{C}_2 \\mathrm{H}_2 \\mathrm{O}_2$$\n"}, {"identifier": "C", "content": "$$\\mathrm{CH}_2 \\mathrm{O}$$\n"}, {"identifier": "D", "content": "$$\\mathrm{C}_3 \\mathrm{H}_6 \\mathrm{O}_2$$"}] | ["A"] | null | mcq | jee-main-2024-online-27th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 88 |
jaoe38c1lsfpmwq9 | chemistry | aldehydes-ketones-and-carboxylic-acids | preparation,-properties-and-uses-of-carboxylic-acids | <p>The total number of 'Sigma' and 'Pi' bonds in 2-formylhex-4-enoic acid is _________.</p> | [] | null | null | integer | jee-main-2024-online-29th-january-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 89 |
IvmZis08k2VEIDknzsqs4 | chemistry | aldehydes-ketones-and-carboxylic-acids | reactions-involving-aldehydes | The correct statement about the synthesis of erythritol (C(CH<sub>2</sub>OH)4) used in the preparation of PETN is : | [{"identifier": "A", "content": "The synthesis requires four aldol condensations between methanol\nand ethanol."}, {"identifier": "B", "content": "The synthesis requires two aldol condensations and two Cannizzaro\nreactions."}, {"identifier": "C", "content": "The synthesis requires three aldol condensations and one Can... | ["C"] | null | mcq | jee-main-2016-online-10th-april-morning-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 90 |
lv9s2sii | chemistry | aldehydes-ketones-and-carboxylic-acids | reactions-involving-aldehydes | <p>In the Claisen-Schmidt reaction to prepare $$351 \mathrm{~g}$$ of dibenzalacetone using $$87 \mathrm{~g}$$ of acetone, the amount of benzaldehyde required is _________ g. (Nearest integer)</p> | [] | null | null | integer | jee-main-2024-online-5th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 91 |
dIa1d9uZ2yLupTxmYtU9q | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | The correct match between <b>Item I</b> and <b>Item II</b> is :
<br/><br/><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;}
.tg th{font-... | [{"identifier": "A", "content": "(A) $$ \\to $$ (Q); (B) $$ \\to $$ (P); (C) $$ \\to $$ (R)"}, {"identifier": "B", "content": "(A) $$ \\to $$ (R); (B) $$ \\to $$ (Q); (C) $$ \\to $$ (P)"}, {"identifier": "C", "content": "(A) $$ \\to $$ (Q); (B) $$ \\to $$ (R); (C) $$ \\to $$ (P)"}, {"identifier"... | ["B"] | null | mcq | jee-main-2019-online-9th-january-evening-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 92 |
Cav9RjZYrYvXTKqtM51klus87ww | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | 2, 4-DNP test can be used to identify : | [{"identifier": "A", "content": "ether"}, {"identifier": "B", "content": "amine"}, {"identifier": "C", "content": "aldehyde"}, {"identifier": "D", "content": "halogens"}] | ["C"] | null | mcq | jee-main-2021-online-26th-february-evening-slot | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 93 |
AnSbr7rr2nJNKomoGi1kmm1mrxa | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | In Tollen's test for aldehyde, the overall number of electron(s) transferred to the Tollen's reagent formula [Ag(NH<sub>3</sub>)<sub>2</sub>]<sup>+</sup> per aldehyde group to form silver mirror is ___________. (Round off to the Nearest Integer). | [] | null | null | integer | jee-main-2021-online-18th-march-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 94 |
1l6kuvln8 | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>The spin only magnetic moment of the complex present in Fehling's reagent is __________ B.M. (Nearest integer).</p> | [] | null | null | integer | jee-main-2022-online-27th-july-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 95 |
1ldolq55s | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>Number of isomeric compounds with molecular formula $$\mathrm{C}_{9} \mathrm{H}_{10} \mathrm{O}$$ which (i) do not dissolve in $$\mathrm{NaOH}$$ (ii) do not dissolve in $$\mathrm{HCl}$$. (iii) do not give orange precipitate with 2,4-DNP (iv) on hydrogenation give identical compound with molecular formula $$\mathrm{C... | [] | null | null | integer | jee-main-2023-online-1st-february-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 96 |
1lgrlmtro | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>The mass of NH$$_3$$ produced when 131.8 kg of cyclohexanecarbaldehyde undergoes Tollen's test is ________ kg. (Nearest Integer)</p>
<p>Molar Mass of</p>
<p>C = 12g/mol</p>
<p>N = 14g/mol</p>
<p>O = 16g/mol</p> | [] | null | null | integer | jee-main-2023-online-12th-april-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 97 |
jaoe38c1lsfk6hxy | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>From the compounds given below, number of compounds which give positive Fehling's test is _________.</p>
<p>Benzaldehyde, Acetaldehyde, Acetone, Acetophenone, Methanal, 4nitrobenzaldehyde, cyclohexane carbaldehyde.</p> | [] | null | null | integer | jee-main-2024-online-29th-january-morning-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 98 |
luxwdeto | chemistry | aldehydes-ketones-and-carboxylic-acids | tests-for-aldehyde-and-ketones | <p>Which of the following compounds will give silver mirror with ammoniacal silver nitrate?</p>
<p>A. Formic acid</p>
<p>B. Formaldehyde</p>
<p>C. Benzaldehyde</p>
<p>D. Acetone</p>
<p>Choose the correct answer from the options given below :</p> | [{"identifier": "A", "content": "B and C only"}, {"identifier": "B", "content": "C and D only"}, {"identifier": "C", "content": "A, B and C only"}, {"identifier": "D", "content": "A only"}] | ["C"] | null | mcq | jee-main-2024-online-9th-april-evening-shift | Identify the core concept involved (reaction mechanism, thermodynamics, equilibrium, periodic trend, etc.). Recall the exact governing principle or rule relevant to this concept. Translate the given information into chemical meaning (structure, conditions, reagents, units, etc.). Apply the concept step-by-step in a log... | 99 |
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