Question

Addition of water to acetylene compounds is catalysed by ............. and ..................

• A. Aqueous $H_{2}S{O}_4$ and $HgS{O}_4$
• B. Aqueous $HCl$ and $HgS{O}_4$
• C. Aqueous $H_{2}S{O}_4$ and $NaOH$
• D. Aqueous $N{a}_{2}S{O}_4$ and $H_{2}S{O}_4$

Answer 1

Answer: (A)

Aqueous $H_{2}S{O}_4$ and $HgS{O}_4$

Addition of water to acetylene compounds is catalysed by Aqueous $H_{2}S{O}_4$ and $HgS{O}_4$. When acetylene is treated with 1% $HgS{O}_4$ and dil $H_{2}S{O}_4$, vinyl alcohol is obtained which tautomerizes to acetaldehyde.