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Arrange the carbanions, (CH(3))(3)bar(C)...

Arrange the carbanions, `(CH_(3))_(3)bar(C),bar(C)Cl_(3),(CH_(3))_(2)bar(C)H,C_(6)H_(5)bar(C)H_(2)`, in order of their decreasing stability

A

`C_(6)H_(5)bar(C)H_(2)gtbar(C) Cl_(3)gt(CH_(3))_(3)bar(C)gt(CH_(3))_(3)bar(C)gt(CH_(3))_(2)bar(C)H`

B

`(CH_(3))_(2)bar(C)Hgtbar(C)Cl_(3)gtC_(6)H_(5)bar(C)H_(2)gt(CH_(3))_(3)bar(C)`

C

`bar(C)Cl_(3)gtC_(6)H_(5)bar(C)H_(2)gt(CH_(3))_(2)bar(C)Hgt(CH_(3))_(3)bar(C)`

D

`bar(C)Cl_(3)gtC_(6)H_(5)bar(C)H_(2)gt(CH_(3))_(2)bar(C)Hgt(CH_(3))_(3)bar(C)`

Text Solution

Verified by Experts

The correct Answer is:
C
Presence of electron withdrawing groups stabilised the carbanions. Thus, the order of stability is
`overset(-)C Cl_(3)gt C_(6)H_(5) overset(-)C H_(2) gt (CH_(3))_(2) overset(-)C H gt (CH_(3))_(3) overset(-)C`
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