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(C) The reaction of acetaldehyde with $HCN$ forms a cyanohydrin,which upon hydrolysis yields lactic acid $(2-hydroxypropanoic \ acid)$.$CH_3CHO + HCN

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Enantiomerism

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(C) The reaction of acetaldehyde with $HCN$ forms a cyanohydrin,which upon hydrolysis yields lactic acid $(2-hydroxypropanoic \ acid)$.$CH_3CHO + HCN 	o CH_3CH(OH)CN \xrightarrow{H_3O^+} CH_3CH(OH)COOH$.Lactic acid contains a chiral carbon atom (the central carbon bonded to $-H, -OH, -CH_3, -COOH$ groups).Due to the presence of this chiral center,lactic acid exists as two non-superimposable mirror images,thus exhibiting enantiomerism.

What does the product obtained from the reaction of acetaldehyde with $HCN$ followed by hydrolysis exhibit?

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