Identify $A$ and $B$ in the following reaction

• Correct answer
  A

  $A=$ aq. $\mathrm{KOH} ; B=\mathrm{AgOH}$
• B

  $A=$ al. $\mathrm{KOH} / \Delta ; B=$ aq. $\mathrm{NaOH}$
• C

  $A=$ aq. $\mathrm{NaOH} ; B=\mathrm{AgNO}_2$
• D

  $A=\mathrm{AgNO}_2 ; B=\mathrm{KNO}_2$

Solution

Ethyl chloride can be converted into ethyl alcohol either by using aqueous alkali or by moist $\mathrm{AgOH}$.

Hence, the correct answer is option: 'A'.