Identify compound $\mathrm{A}$ in the following reaction. $\mathrm{R}-\mathrm{Mg}-\mathrm{X}+\mathrm{A}…

Identify compound $\mathrm{A}$ in the following reaction. $\mathrm{R}-\mathrm{Mg}-\mathrm{X}+\mathrm{A} \stackrel{\text { dry ether }}{\longrightarrow} \mathrm{R}-\mathrm{COOMg} \mathrm{X} \underset{\text { dil HCl }}{\stackrel{\mathrm{HOH}}{\longrightarrow}} \mathrm{R}-\mathrm{COOH}+\mathrm{Mg}(\mathrm{X}) \mathrm{OH}$
  1. $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$
  2. $\mathrm{NaOH}$
  3. $\mathrm{CO}_2$ (Solid)
  4. $\mathrm{NH}_3$

Asked in: MHT CET 2022 (10 Aug Shift 1)

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