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As per your syllabus, addition of water to ethyne in dilute H₂SO₄ with HgSO₄ catalyst gives which final product?
AEthanol (a substitution)
BEthene (reduction)
CAcetic acid (oxidation)
DAcetaldehyde (ethanal)
Answer & Solution
Correct answer: D. Acetaldehyde (ethanal)
Your syllabus: H₂O adds across triple bond
→ vinyl alcohol → tautomerises (keto-enol) → CH₃CHO.
Higher alkynes give ketones.
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