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Year: 2023
Topic: Aldehydes, Ketones and Carboxylic Acids
1.
Identify product (A) in the following reaction:
(1).
(2).
(3).
(4).

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Year: 2020
Topic: Aldehydes, Ketones and Carboxylic Acids
2.
An alkene on ozonolysis gives methanal as one of the product. Its structure is :
(1).
(2).
(3).
(4).

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Year: 2025
Topic: Aldehydes, Ketones and Carboxylic Acids
3.
The major product of the following reaction is
(1).
(2).
(3).
(4).

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Year: 2025
Topic: Aldehydes, Ketones and Carboxylic Acids
4.
Identify the suitable reagent for the following conversion
(1).
\(H_2/Pd-BaSO_4\)
(2).
(i) \(LiAIH_4\), (ii) \(H^+ /H_2O\)
(3).
(i) \(AIH\left(iBu\right)_2\), (ii) \(H_2O\)
(4).
(i) \(NaBH_4\), (ii) \(H^+ / H_2O\)

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Year: 2025
Topic: Aldehydes, Ketones and Carboxylic Acids
5.
The correct order of decreasing acidity of the following aliphatic acids is :
(1).
HCOOH > (СН3)3ССООН > (СН3)2СНСООH > СН3COOH
(2).
(СНз)3ССООН > (СН3)2СHCOOH > СН3СООН > НСООН
(3).
СН3СООН > (СН3)2СHСOOH > (СН3)3ССООН > HCOOH
(4).
НСООН > СН3СООН > (СН3)2СНСООH > (СН3)3ССООН

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Year: 2024
Topic: Aldehydes, Ketones and Carboxylic Acids
6.
For the given reaction:

'P' is
(1).
(2).
(3).
(4).

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Year: 2023
Topic: Aldehydes, Ketones and Carboxylic Acids
7.
Complete the following reaction:
(1).
(2).
(3).
(4).

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Year: 2023
Topic: Aldehydes, Ketones and Carboxylic Acids
8.
Identify the major product obtained in the following reaction:
(1).
(2).
(3).
(4).

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Year: 2023
Topic: Aldehydes, Ketones and Carboxylic Acids
9.
Identify the final product [D] obtained in the following sequence of reactions.
(1).
(2).
(3).
(4).

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Year: 2022
Topic: Aldehydes, Ketones and Carboxylic Acids
10.

What is Y in the above reaction?
(1).
RCOO-Mg+X
(2).
R2CO-Mg+X
(3).
RCOO-X+
(4).
(RCOO)2Mg

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Year: 2022
Topic: Aldehydes, Ketones and Carboxylic Acids
11.
Given below are two statements :
Statement I : The boiling points of aldehydes and ketones are higher than hydrocarbons ofcomparable molecular masses because of weakmolecular association in aldehydes and ketones dueto dipole - dipole interactions.
Statement II : The boiling points of aldehydesand ketones are lower than the alcohols of similarmolecular masses due to the absence of H-bonding.
In the light of the above statements, choose themost appropriate answer from the given below:
(1).
Both Statement I and Statement II are correct
(2).
Both Statement I and Statement II are incorrect
(3).
Statement I is correct but Statement II isincorrect
(4).
Statement I is incorrect but Statement II is correct

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Year: 2022
Topic: Aldehydes, Ketones and Carboxylic Acids
12.
Match List-I with List-II.

Choose the correct answer from the options givenbelow:
(1).
(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
(2).
(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)
(3).
(a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)
(4).
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

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Year: 2022
Topic: Aldehydes, Ketones and Carboxylic Acids
13.
Which one of the following is not formed whenacetone reacts with 2-pentanone in the presenceof dilute NaOH followed by heating?
(1).
(2).
(3).
(4).

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Year: 2020
Topic: Aldehydes, Ketones and Carboxylic Acids
14.
Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as:
(1).
Cannizzaro's reaction
(2).
Cross Cannizzaro's reaction
(3).
Cross Aldol condensation
(4).
Aldol condensation

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Year: 2020
Topic: Aldehydes, Ketones and Carboxylic Acids
15.
Reaction between acetone and methyl magnesium chloride followed by hydrolysis will give:
(1).
Sec. butyl alcohol
(2).
Tert. butyl alcohol
(3).
Isobutyl alcohol
(4).
Isopropyl alcohol

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Year: 2018
Topic: Aldehydes, Ketones and Carboxylic Acids
16.
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their
(1).
formation of intermolecular H-bonding.
(2).
more extensive association of carboxylic acid via van der Waals force of attraction.
(3).
formation of carboxylate ion.
(4).
formation of intramolecular H-bonding.

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Year: 2018
Topic: Aldehydes, Ketones and Carboxylic Acids
17.
Compound A, C8H10O, is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell.
A and Y are respectively :
(1).
(2).
(3).
(4).

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Solution
Year: 2017
Topic: Aldehydes, Ketones and Carboxylic Acids
18.
Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating ?
(1).
(2).
(3).
(4).

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Solution
Year: 2017
Topic: Aldehydes, Ketones and Carboxylic Acids
19.
Consider the reaction

Identify A, X, Y, and Z
(1).
A-Ethanol, X-Acetaldehyde, Y-Butanone, Z-Hydrazone
(2).
A-Methoxymethane, X-Ethanoic acid, Y-Acetate ion, Z-hydrazine
(3).
A-Methoxymethane, X-Ethanol, Y-Ethanoic acid, Z-Semicarbazide
(4).
A-Ethanal, X-Ethanol, Y-But-2-enal, Z-Semicarbazone

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Year: 2017
Topic: Aldehydes, Ketones and Carboxylic Acids
20.
Identify A and predict the type of reaction
(1).
(2).
(3).
(4).

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Year: 2016
Topic: Aldehydes, Ketones and Carboxylic Acids
21.
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon, is
(1).
a carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration
(2).
a carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation
(3).
a carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism
(4).
a carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol

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Year: 2016
Topic: Aldehydes, Ketones and Carboxylic Acids
22.
The product formed by the reaction of an aldehyde with a primary amine is
(1).
ketone
(2).
carboxylic acid
(3).
aromatic acid
(4).
schiff base

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