Assertion :Benzonitrile is prepared by the reaction of chlorobenzene with KCN. Reason: Cyanide is a stronger nucleophile..

Assertion is True, Reason is True; Reason is a correct explanation for Assertion

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Assertion is True, Reason is True; Reason is not a correct explanation for Assertion

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Assertion is True, Reason is False.

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Assertion is False,Reason is True.

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Solution

The correct option is D
Assertion is False,Reason is True.

When alkyl halides are heated with alcoholic potassium cyanide solution, alkyl cyanides are obtained.
This is because cyanide ion is more nucleophilic than chloride ion.
However, this process cannot be used for the preparation of benzonitrile because the nucleophilic aromatic substitution reaction requires drastic conditions.

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