Ethyl chloride reacts with sodium ethoxide to form a compound $A$. Which of the following reactions also yields $A$ ?

• A

  $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}, \mathrm{KOH}$ (alc. ), $\Delta$
• Correct answer
  B

  $2 \mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$, conc. $\mathrm{H}_2 \mathrm{SO}_4, 140^{\circ} \mathrm{C}$
• C

  $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}, \mathrm{Mg}$ (dry ether)
• D

  $\mathrm{C}_2 \mathrm{H}_2$ dil $\mathrm{H}_2 \mathrm{SO}_4, \mathrm{HgSO}_4$

Solution

Ethyl chloride reacts with sodium ethoxide to form diethyl ether as
Diethyl ether is also obtained by reaction of ethyl alcohol with conc. $\mathrm{H}_2 \mathrm{SO}_4$ at $140^{\circ} \mathrm{C}$.

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