Question
How does acetone reacts with $\ce{HCN}$ and $\ce{NaHSO_3}$?
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Answer
$(i)$ When acetone reacts with $\ce{HCN},$ it gives nucleophilic addition product acetone cyanohydrin.
This reaction occurs slowly with pure $\ce{HCN},$ therefore this reaction is carried out in the presence of alkali.
This reaction occurs slowly with pure $\ce{HCN},$ therefore this reaction is carried out in the presence of alkali.
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