Predict the correct intermediate and product in the following reaction.
`H_(3)C-C-=CH underset(HgSO_(4))overset(H_(2)O,H_(2)SO_(4))to`
`underset((A))("Intermediate")tounderset((B))("Product")`

Options

A. A: `H_(3)C underset(SO_(4))underset(|)C= CH_(2)` B: `H_(3)C- underset(O)underset(||)C-CH_(3)`
B. A: `H_(3)C-underset(OH)underset(|)C=CH_(2)` B: `H_(3)C-underset(SO_(4))underset(|)C=CH_(2)`
C. A: `H_(3)C-underset(O)underset(||)C=CH_(3)` B: `H_(3)C-C-=CH`
D. A: `H_(3)C-underset(OH)underset(|)C=CH_(2)` B: `H_(3)C-underset(O)underset(||)C-CH_(3)`

Answer

D

Explanation

`CH_(3)-C-=CH underset(H_(2)SO_(4))overset(H_(2)O, Hg^(2+))to underset((A))(CH_(3) -underset(OH)underset(|)C= CH_(2)) overset("tautomerism")to underset((B))(CH_(3)-underset(O)underset(||)C-CH_(3))`