Phenyl isocyanide test is used to identify:

aromatic secondary amines

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aromatic tertiary amines

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aromatic primary amines

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quarternary ammonium compounds

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Solution

The correct option is C aromatic primary amines
Aromatic primary amines react with chloroform in the presence of caustic potash to give foul smelling substances called as isocyanides.
This test is popularly known as carbylamine test.

The reaction is as follows:
$R N H_{2} + C H C l_{3} + K O H \to R N C$

This test is given by only primary amines.

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Which of the following is used to distinguish primary, secondary and tertiary amines

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