Give the structure of the major organic products obtained from `3-`ethyl`-2-`pentene under each of the following reaction conditions.
`a.` `HBr` in the presence of peroxide
`b.` `Br_(2)//H_(2)O`
`c.` `Hg(Oac)_(2)//H_(2)O,NaBH_(4)`

Answer

(a) `(CH_(3)-CH_(2))_(2)CH-overset(Br)overset(|)CH-CH_(3)`
(b) `(CH_(3)-CH_(2))_(2)overset(OH)overset(|)C-overset(Br)overset(|)CH-CH_(3)`
(c) `(C_(2)H_(5))_(3)-C-OH`