Write the mechanism of hydration of ethene to yield ethanol.

Explanation

Step 1 : Formation of protonated alcohol.

Step 2 : Formation of carbocation.
`H-underset(overset(|)(H))overset(underset(|)(H))(C)-underset(overset(|)(H))overset(underset(|)(H))(C)-overset(underset(|)(H))(O^(+))-H overset(Slow)(hArr) H-underset(overset(|)(H))overset(underset(|)(H))C-underset(overset(|)(H))overset(underset(|)(H))(C^(+)) + H_(2)O`
Step 3 : Formation of ethane by elimination of a proton.