question_answer

A carbonyl compound reacts with hydrogen cyanide to form cyanbhydrin which on hydrolysis forms a racemic mixture of a\[\alpha -\]ydroxy acid. The carbonyl compound is

A)  acetaldehyde

B)  acetone

C)  diethyl ketone

D)  formaldehyde

Correct Answer: A

Solution :

  If it is racemic mixture, therefore such 'C' atom must be asymmetric carbon atom. [a]   [b] [c] [d]