Which of the following is most stable Carbocation?

Options

A. `CH_(3)^(+)`
B. `CH_(3)CH_(2)overset(+)(C)H_(2)`
C. `CH_(3) overset(+)(C)HCH_(3)`
D. `CH_(3)-underset(CH_(3))underset(|)overset(+) C-CH_(3)`

Answer

D

Explanation

Carbocation is more stable if it is bonded to electron relasing group which somewhat stabilise the carbocation . So more the number of electron releasing groups, more is the stability.
`underset("(least stable)") overset(+) (CH_(3)) " " CH_(3) to overset(+)CH_(2) " "CH_(3) to overset(+)CH larr CH_(3) " "CH_(3)-underset("(most stable)")underset(CH_(3)) underset(uarr)overset(+)C larr CH_(3)`