Question

Identify 'Z' in the sequence
$C_{6}H_{5}NH_{2}\overset{N a N O_{2} + H C l}{ \rightarrow }X\overset{C u C N}{ \rightarrow }Y\overset{H^{+} / H_{2} O}{ \rightarrow }Z$

• A. $C_{6}H_{5}CN$
• B. $C_{6}H_{5}CONH_{2}$
• C. $C_{6}H_{5}COOH$
• D. $C_{6}H_{5}CH_{2}NH_{2}$

Answer 1

Answer: (C)

Here the final product Z is benzoic acid which is formed as follows
$C_{6}H_{5}NH_{2}\overset{N a N O_{2} + H C l}{ \rightarrow }\underset{\left(\right. X \left.\right)}{C_{6} H_{5} \left(\overset{+}{N}\right)_{2} C l^{-}}\overset{C u C N}{ \rightarrow }\underset{\left(\right. Y \left.\right)}{C_{6} H_{5} C N}\overset{H^{+} / H_{2} O}{ \rightarrow }\underset{b e n z o i c a c i d \left(\right. Z \left.\right)}{C_{6} H_{5} C O O H}$