Which of the following reagents on treatment with benzenamine in basic medium produces phenyl isocyanide?

{C C l}_{4}

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Trichloromethane

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Methylene dichloride

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Hexachloroethane

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Solution

The correct option is D Trichloromethane
$P h N H_{2} B e n z e n a m i n e + C H C l_{3} T r i c h l o r o m e t h a n e + 3 N a O H - ------------ \to C a r b y l a m i n e r e a c t i o n P h - \oplus N \equiv C^{⊖} p h e n y l i s o c y a n i d e + 3 N a C l + 3 H_{2} O$

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