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Question
What happens when methyl chloride is treated with KCN?
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Solution
Methyl cyanide is formed.
\[\ce{\underset{Methyl chloride}{CH3 - Cl} + KCN ->[EtOH-H2O, \Delta][nucleophilic substitution] \underset{Methyl cyanide}{CH3 - C ≡ N} + KCl}\]
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