When but `-3-en-2-ol` reacts with `aq HBr` , we get

Options

A. `CH_(3)underset(Br)underset(|)(CH)CH= CH_(2)`
B. `CH_(3)CH = CHCH_(2)Br`
C. both (1) and (2)
D. `H_(2)C = CHCH = CH_(2)`

Answer

C

Explanation

The reactant forms alkyl carbocation that is stabilized by delocalization over an extended carbon chain having more than one `C^(delta+)` site. The nucleophile , `Br^(-)` , reacts at either of two elctron deficient sites.