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The reaction of an alkyl halide with predominantly yields an isonitrile, whereas reaction with yieldReaction Mechanism Chemistry Question

Question

The reaction of an alkyl halide with $AgCN$ predominantly yields an isonitrile, whereas reaction with $KCN$ yields a nitrile. This demonstrates the behavior of:

Answer: B

💡 Solution & Explanation

The cyanide ion is an ambident nucleophile with two attack sites (C and N). $AgCN$ favors $S_N1$ attack via Nitrogen, while $KCN$ favors $S_N2$ attack via Carbon.

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