Identify 'A' in the following reaction $\mathrm{R}-\mathrm{NO}_{2} \frac{\mathrm{Zn} / \mathrm{NH}_{4}…

Identify 'A' in the following reaction $\mathrm{R}-\mathrm{NO}_{2} \frac{\mathrm{Zn} / \mathrm{NH}_{4} \mathrm{Cl}}{\text { neutral medium }} \rightarrow \mathrm{A}+\mathrm{H}_{2} \mathrm{O}$
  2. $\mathrm{R}-\mathrm{NH}-\mathrm{OH}$
  3. $\mathrm{R}-\mathrm{COOH}$
  4. $\mathrm{R}-\mathrm{NH}_{2}$

Asked in: MHT CET 2020 (12 Oct Shift 1)

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