Q69 / 180 · AIIMS 2002 · Chemistry

Action of acetylene on dilute $\mathrm{H}_2 \mathrm{SO}_4$ gives

  • A
    acetic acid
  • Correct answer
    B
    acetaldehyde
  • C
    acetone
  • D
    acetoacetic ester.

Solution

Acetylene is converted to acetaldehyde when acetylene is treated with dil. $\mathrm{H}_2 \mathrm{SO}_4$ and small amount of $\mathrm{HgSO}_4$. $$ \begin{array}{lr} \mathrm{CH} \equiv \mathrm{CH}+\mathrm{H}_2 \mathrm{O} \frac{\mathrm{Dill}^{\mathrm{H}} \mathrm{SO}_4}{\mathrm{Hg}^{2+}} & \mathrm{CH}_3-\mathrm{CHO} \\ \text { Acetylene } & \text { acetaldehyde } \end{array} $$

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

Relevant Questions