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(C) Benzyl chloride $(Ph-CH_2-Cl)$ reacts with ethanolic $KCN$ via a nucleophilic substitution reaction $(S_N2)$.Since $KCN$ is an ionic compound,it p

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benzyl cyanide

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(C) Benzyl chloride $(Ph-CH_2-Cl)$ reacts with ethanolic $KCN$ via a nucleophilic substitution reaction $(S_N2)$.Since $KCN$ is an ionic compound,it provides $CN^-$ ions in solution.The cyanide ion $(CN^-)$ acts as an ambident nucleophile and attacks the carbon atom of the $CH_2-Cl$ group,displacing the chloride ion.The major product formed is benzyl cyanide $(Ph-CH_2-CN)$.

When benzyl chloride is treated with ethanolic $KCN$,the major product formed is

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