JEE Main 2024 Chemistry question
The major product of the following reaction is P. CH₃C≡C–CH₃ (i) Na/liq. NH₃, (ii) dil. KMnO₄, 273 K → 'P'. Number of oxygen atoms present in product 'P' is (nearest integer).
Answer: 2
Solution
Na/liq. NH₃ gives trans-2-butene; cold dilute KMnO₄ (syn hydroxylation) gives butane-2,3-diol, C₄H₁₀O₂, with 2 oxygen atoms.