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Question

A compound $X$ has the molecular formula $C_{7} H_{7} N O$ . On treatment with ${B r}_{2}$ and $K O H$ , $X$ gives an amine $Y$ . $Y$ gives carbylamine test. $Y$ upon diazotisation and coupling with phenol gives an azodye $Z$ . The compound $X$ is :

A

P h C O N H_{2}

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B

P h C O N H C O C H_{3}

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C

P h N O_{2}

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D

P h C O O N H_{4}

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Solution

The correct option is A $P h C O N H_{2}$
Reaction of $X$ with $B r_{2}$ + $K O H$ suggests that $X$ is an amide. Carbylamine test and coupling reaction of $Y$ suggest that $Y$ is $1^{o}$ aromatic amine.

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