Chemistry, asked by Harshavardan75971, 1 year ago

Explain the following: Alkyl halides react with KCN to form mainly alkyl cyanides (RCN) with some alkyl isocyanides (RNC), while with AgCN they form exclusively isocyanides.

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Answered by Ankush001
4
Answer is:-

KCN is predominantly ionic and provides cyanide ions in solution. Although both carbon and nitrogen atoms are in a position to donate electron pairs, the attack takes place mainly through carbon atom and not through nitrogen atom since C—C bond is more stable than C—N bond. However, AgCN is mainly covalent in nature and nitrogen is free to donate electron pair forming isocyanide as the main product.

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