When 2-butyne is hydrated with dil. `H_2SO_(4)` in presence of `HgSO_(4),` it gives ____.

Explanation

To solve the problem of what product is formed when 2-butyne is hydrated with dilute H₂SO₄ in the presence of HgSO₄, we can follow these steps:

### Step 1: Identify the Reactants
2-butyne is an alkyne with the structure CH₃C≡CCH₃. The reactants are dilute sulfuric acid (H₂SO₄) and mercuric sulfate (HgSO₄).

### Step 2: Understand the Reaction Mechanism
The hydration of alkynes in the presence of HgSO₄ follows Markovnikov's rule, where the more substituted carbon atom gets the hydroxyl group (OH). The reaction proceeds through the formation of a carbocation intermediate.

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