Question

Primary nitroalkanes on boiling with hydrochloric acid undergo hydrolysis to form

• A. Alcohol and nitrous acid
• B. Carboxylic acid and hydroxyl amine
• C. Aldehyde and hydroxyl amine
• D. Ketone and nitrous acid

Hint:

Primary nitroalkanes hydrolyze in acidic conditions to form carboxylic acids and hydroxyl amines.

Answer 1

The Correct Option is B

Step 1: Understanding the reaction.
Boiling primary nitroalkanes with hydrochloric acid leads to hydrolysis, which produces carboxylic acid and hydroxyl amine. This is a well-known reaction for nitroalkanes.
Step 2: Analyzing the options.
(A) Alcohol and nitrous acid: This is incorrect because nitroalkanes undergo hydrolysis to produce carboxylic acid, not alcohol.
(B) Carboxylic acid and hydroxyl amine: Correct — this is the expected product when primary nitroalkanes undergo hydrolysis with hydrochloric acid.
(C) Aldehyde and hydroxyl amine: Incorrect — the hydrolysis of nitroalkanes does not produce aldehydes.
(D) Ketone and nitrous acid: Incorrect — ketones are not the products of hydrolysis of nitroalkanes.
Step 3: Conclusion.
The correct answer is (B) Carboxylic acid and hydroxyl amine.