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The descending order of stability of the...

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`

Text Solution

Verified by Experts

The correct Answer is:
C
Stability of carbocations is enhanced by
(i) Presence of conjugation
(ii) Presence of group having +I effect. So, the correct order is
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ERRORLESS -GENERAL ORGANIC CHEMISTRY-Dipole moment, resonance and reaction intermediates
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