Question

Acetylene when passed through 20% H2₂SO₄
at 80°C gives acetaldehyde. The catalyst required
for this conversion is
(a) Anhydrous AlCl₃ (b) HgSO₄
(c) Pd (d) Pt

Answer 1

Answer:

option D

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Answer 2

(b) HgSO₄  

Explanation:

HgSO₄ acts as the catalyst when diluted acetylene is passed through diluted sulphuric acid, a water molecule will be added to acetylene. The metal catalyst will act as promoter. Acetaldehyde is formed. The reaction is called Kucherov Reaction.

Option B is the answer.