Which of the following amines will not give the carbylamine test?

C H_{3} N H_{2}

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Solution

The correct option is C
All primary amines on heating with chloroform and ethanolic $K O H$ form isocyanides or carbylamines which are foul smelling substances. Secondary and tertiary amines do not show this reaction. This reaction is known as carbylamine reaction or isocyanide test.
$R - N H_{2} + C H C l_{3} + 3 K O H Δ - \to R - N C + 3 K C l + 3 H_{2} O$

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