Addition of hydrogen cyanide (HCN) to carbony | vedclass

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Question

(A) The addition of $HCN$ to carbonyl compounds is a nucleophilic addition reaction.In this reaction,the cyanide ion $(CN^-)$ acts as the nucleophile.

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Accelerated by addition of base

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(A) The addition of $HCN$ to carbonyl compounds is a nucleophilic addition reaction.In this reaction,the cyanide ion $(CN^-)$ acts as the nucleophile.Since $HCN$ is a weak acid,it does not dissociate significantly to provide $CN^-$ ions.Adding a base (like $OH^-$) helps in the deprotonation of $HCN$ to generate a higher concentration of $CN^-$ ions $(HCN + OH^- \rightarrow CN^- + H_2O)$.Therefore,the presence of a base increases the rate of the reaction by increasing the concentration of the nucleophile.

Addition of hydrogen cyanide $(HCN)$ to carbonyl compounds is:

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