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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(.)(C)Hlt(CH_(3))_(3)overset(.)(C)gt(C_(6)H_(5))_(2)overset(.)(C)Hlt(C_(6)H_(5))_(3)overset(.)(C)`

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
`(CH_(6)H_(5))_(3)overset(.)(C), (C_(6)H_(5))_(2) overset(.)(C)H` are more stable due to resonance, `(CH_(3))_(3)overset(.)(C)` and `(CH_(3))_(2)overset(.)(CH)` (hyperconjugation)
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  6. Which of the following is the least stable carbanion?

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  7. Arrange the following carbocation in decreasing order of stability.

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  8. Arrange the following carbocation in decreasing order of stability.

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

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