Question

Identify 'Z' in the sequence:

$C_6{H}_{5}N{H}_2\underset{273K}{\overset{NaN{O}_2+HCl}{\to }}X\stackrel{CuCN}{\to }Y\underset{H^{+}/H_{2}O}{\overset{Boil}{\to }}$

• A.
  $C_6{H}_{5}CN$
• B.
  $C_6{H}_{5}CON{H}_2$
• C.
  $C_6{H}_{5}COOH$
• D.
  $C_6{H}_{5}C{H}_{2}N{H}_2$

Answer 1

The correct option is C

$C_6{H}_{5}COOH$
$C_6{H}_{5}N{H}_2\underset{273K}{\overset{NaN{O}_2+HCl}{\to }}\left(X\right)C_6{H}_5{N}_2^{+}C{l}^{-}\stackrel{CuCN}{\to }{C}_6{H}_{5}CN\left(Y\right)\underset{\text{Boil}}{\overset{H^{+}/H_{2}O}{\to }}{C}_6{H}_{5}COOH\left(\text{benzoic acid}\right(Z)$
Thus Z is benzoic acid $\left(C_6{H}_{5}COOH\right).$