Question

What is the major product obtained from the acid-catalyzed hydration of `CH_3CH_2CH_2CH=CH_2`?

Answer 1

The major product is pentan-2-ol.

Explanation:

This is the Markovnikov addition of water to an alkene.

The `"H"^+` from the acid adds to `"C-1"` of the alkene and forms a 2° carbocation at `"C-2"`.

The `"O"` atom of the water then attacks `"C-2"` to form pentan-2-ol.