In the acid-catalyzed dehydration of alcohols to alkenes, which of the following are true?
I) A carbanion intermediate is involved.
II) A carbocation intermediate is involved.
III) There is no intermediate involved.
IV) Methyl shifts can occur in the interme-diates.
V) Hydride shift can occur in the intermediates.
|A||I, IV & V only|
|B||II, IV & V only|
|D|| II & V only|