Question

A carbonyl compound reacts with hydrogen
cyanide to form cyanohydrin which on
hydrolysis forms a racemic mixture of a-hydroxy
acid. The carbonyl compound is
(a) acetone (b) diethyl ketone
(c) formaldehyde (d) acetaldehyde

Answer 1

Answer ---› d) acetaldehyde

thanks for the question

Answer 2

(d) acetaldehyde

Explanation:

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of a-hydroxy acid. The carbonyl compound is an acetaldehyde.

Please refer to the attached picture for a detailed explanation of the structure of the compound.

A racemic mixture will have a C atom that is assymmetric carbon atom.

Option D is the answer.