A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a recemic mixrture of `alpha`-hydroxy acid. The carbonyl compound `D`.A. FormaldehydeB. acetaldehydeC. acetoneD. diethyl ketone.

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin w

1.	A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a recemic mixrture of `alpha`-hydroxy acid. The carbonyl compound `D`.A. FormaldehydeB. acetaldehydeC. acetoneD. diethyl ketone.
Answer» Correct Answer - B Acetaldehyde cyanohydrin `(CH_(3)CH(OH)CN)` and lactic acid `(CH_(3)"CHOH COOH")` which it gives on hydrolyses contain a chiral carbon and hence exist as a racemic mixture. All the other compounds are symmetrical and hence their cyanohydrins and the corresponding `alpha`-hydroxy acids are not optically active because they do contain a chiral carbon.

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A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a recemic mixrture of `alpha`-hydroxy acid. The carbonyl compound `D`.A. FormaldehydeB. acetaldehydeC. acetoneD. diethyl ketone.

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