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The increasing order of stability of the...

The increasing order of stability of the following free radicals is:

A

`(CH_(3))_(2) overset(*)CH lt (CH_(3))_(3) overset(*)C lt (C_(6)H_(5))_(2) overset(*)CH lt (C_(6)H_(5))_(3) overset(*)C`

B

`(C_(6)H_(5))_(3)overset(*)C lt (C_(6)H_(5))_(2) overset(*)CH lt (CH_(3))_(3)overset(*)C lt (CH_(3))_(2) overset(*)CH`

C

`(C_(6)H_(5))_(2)overset(*)CH lt (C_(6)H_(5))_(3)overset(*)C lt (CH_(3))_(3)overset(*)C lt (CH_(3))_(2)overset(*)CH`

D

`(CH_(3))_(2)overset(*)CH lt (CH_(3))_(3) overset(*)C lt (C_(6)H_(5))_(3) overset(*)C lt (C_(6)H_(5))_(2) overset(*)CH`

Text Solution

Verified by Experts

The correct Answer is:
A
Order of stability of free radicals
`underset("stabilized")underset("Resonance")((C_(6)H_(5))_(3)overset(*)C) gt underset("stabilized")underset("Resonance")((C_(6)H_(5))_(2)overset(*)CH) gt underset("conjugation effect")underset("inductive & hyper")underset("Stabilized by") ((CH_(3))_(3)overset(*)C) gt underset("conjugation effect")underset("inductive & hyper")underset("Stabilized by")((CH_(3))_(2)overset(*)CH)`
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