Question

Addition of water to acetylene compounds is catalysed by _____ and ______

• A. $HgS{O}_4$ and dil. $H_{2}S{O}_4$
• B. $KMn{O}_4$
• C. $H_{2}S{O}_4$
• D. Both (b) and (c)

Answer 1

The correct option is A $HgS{O}_4$ and dil. $H_{2}S{O}_4$

Like alkanes and alkenes, alkynes are also immiscible in water and do not react with water. However, one molecule of water adds to an alkyne on warming with $HgS{O}_4$ and dil. $H_{2}S{O}_4$ at 333 K to form a carbonyl compound.

So, the correct answer will be option (a).