VITEEE PYQs for Aldehydes, Ketones and Carboxylic Acids with Solutions: Practice VITEEE Previous Year Questions

1.

Which one of the following compounds will be most readily dehydrated ?

2.

On treatment of propanone with dilute \(Ba(OH)_2\), the product formed is

• aldol
• phorone
• propionaldehyde
• 4-hydroxy-4-methyl-2-pentanone
  

3.

Formation of cyanohydrin from a ketone is an example of

• electrophilic addition
• nucleophilic addition
• nucleophilic substitution
• electrophilic substitution
  

4.

Which of the following is a Gattermann aldehyde synthesis?

• A
• B
• C
• D

5.

The compound that gives iodoform test is:

• Acetaldehyde
• Benzaldehyde
• Formaldehyde
• Propionaldehyde

6.

Cannizzaro reaction is shown by aldehydes which:

• Have alpha hydrogen
• Do not have alpha hydrogen
• Have beta hydrogen
• Are aromatic

7.

The reaction is called:

• Reimer-Tiemann reaction
• Lederer-Manasse reaction
• Sandmeyer reaction
• Kolbe's reaction
  

8.

Aldol is

• \(\beta\)-hydroxybutyraldehyde
• \(\alpha\)-hydroxybutanal
• \(\beta\)-hydroxypropanal
• None of the above
  

9.

IUPAC name of valeric acid is

• Propanoic acid
• Butanoic acid
• Ethanoic acid
• Pentanoic acid

10.

Which of the following does not undergo benzoin condensation?

• A
• B
• C
• D

11.

Ketones \( [\text{R}-\text{C}(\text{R})=O] \), where \( R = \text{alkyl} \) group can be obtained in one step by

• Hydrolysis of esters
• Oxidation of primary alcohols
• Oxidation of secondary alcohols
• Reaction of acid halide with alcohols
  

12.

Ketones $[R- \underset{\overset{||}{O}}{C} - R']$ where, $R = R' = $ alkyl group can be obtained in one step by

• Hydrolysis of esters
• Oxidation of primary alcohols
• Oxidation of secondary alcohols
• Reaction of acid halide with alcohols

13.

Which of the above compounds on being warmed with iodine solution and NaOH will give iodoform?

• (i), (ii) and (iv)
• Only (ii)
• (i), (ii) and (iii)
• (i) and (ii)
  

14.

In a Claisen condensation reaction (when an ester is treated with a strong base)

• a proton is removed from the $\alpha$ -carbon to form a resonance stabilised carbanion of the ester
• carbanion acts as a nucleophile in a nucleophilic acyl substitution reaction with another ester molecule
• a new $C?C$ bond is formed
• All of the above statements are correct

15.

Which of the following carbonyls will have the strongest C—O bond?

• \(Mn(CO)_6\)
• \(Cr(CO)_6\)
• \(V(CO)_6\)
• \(Fe(CO)_5\)