Consider the following reaction, $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}+\mathrm{AgCN} \stackrel{\mathrm{EtOH} / \mathrm{H}_2 \mathrm{O}}{\longrightarrow} \underline{X} \text { (major) }$ Which one of the following statements is true for $\underline{X} ?$ (I) It gives propionic acid on hydrolysis (II) It has an ester functional group (III) It has a nitrogen linked to ethyl carbon (IV) It has a cyanide group

• A

  IV
• Correct answer
  B

  III
• C

  II
• D

  I

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