Which of the following reactions does not yield an amine

Which of the following reactions does not yield an amine
  1. $\mathrm{RX}+\mathrm{NH}_{3} ightarrow$
  3. $\mathrm{RCN}+\mathrm{H}_{2} \mathrm{O} \stackrel{\mathrm{H}^{+}}{\longrightarrow}$
  4. $R C O N H_{2}+4 H \stackrel{L i A l H_{4}}{\longrightarrow}$

Solution

$R-C N+H_{2} O \stackrel{H_{2} O / H^{+}}{\longrightarrow} R C O O H+N H_{3}$
It yield amine when reduced as -
$R-\mathrm{CN}+\mathrm{H}_{2} ightarrow \mathrm{R}-\mathrm{CH}_{2}-\mathrm{NH}_{2}$ ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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