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Haloalkanes react with KCN to give alkyl cyanide as main product while with AgCN they form isocyanide as main product. Give reason.

Jayant Kumar , 10 Years ago
Grade 11
anser 1 Answers
Gaurav

Last Activity: 10 Years ago

CN- is an ambient nucleophile i.e. it can form bond from both C and N atoms.
KCN is an ionic compound so both C and N sides are available for the formation of bond, but C-C bond is stronger than C-N bond so cynide is formed.
AgCN is a covalent compound so only N side is available for CN to form bond and thus isocynide is formed

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