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Preparation of Haloalkanes from Alcohol

Acetonitrile ...

Question

Acetonitrile is prepared by treating an alcoholic solution of methyl iodide with:

A

silver cyanide

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B

potassium cyanide

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C

hydrogen cyanide

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D

ammonia

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Solution

The correct option is B potassium cyanide
$C H_{3} I + K C N \to C H_{3} C N a c e t o n i t r i l e + K I$

Note $C H_{3} I + A g C N \to C H_{3} N C m e t h y l i s o c y n a i d e + A g I$ .

Option B is correct.

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Preparation of Haloalkanes from Alcohol

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