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NEET levelSingle correct optionDifficulty 1 of 3co041

Cyclohexanone reacts with $HCN$ in the presence of a trace of $NaCN$ to give

A1-hydroxycyclohexane-1-carbonitrile
B2-hydroxycyclohexane-1-carbonitrile
Ccyclohexanecarbonitrile
Dcyclohexanol

Answer: A

CN X^{-}

attacks the carbonyl carbon and the alkoxide is protonated by

HCN

. The product is the cyanohydrin with both OH and CN on the former carbonyl carbon.

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