Question

The descending order of stability of the carbanion ions
`underset((I))(C_(6)H_(5)overset(+)(C)H_(2)),underset((II))(p-(CH_(3)O)C_(6)H_(4))overset(+)(C)H_(2), underset((III))(p-(NO_(2))C_(6)H_(4)overset(+)(C)H_(2))` and `underset((IV))(p-(CH_(3))C_(6)H_(4)overset(+)(C)H_(2))` is
A. `IV gt II gt I gt III`
B. `II gt IV gt III gt I`
C. `II gt IV gt I gt III`
D. `IV gt II gt III gt I`

Answer 1

Correct Answer - C
Stability of carbocations is enhanced by
(i) Presence of conjugation
(ii) Presence of group having +I effect. So, the correct order is