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Arrange the following carbanions in orde...

Arrange the following carbanions in order of their decresing stability.
A. `H_(3)C-C-=C^(-)`
B.`H-C-=C^(-)`
C. `H_(3)C-overset(-)CH_(2)`

A

`C_(6)H_(5)overset( -)(C ) H_(2) gt overset( -)(C ) C l_(3) gt (CH_(3))_(2) overset( -)(C ) gt (CH_(3))_(2)overset( -)(C ) H `

B

`(CH_(3))_(2)overset( -)(C ) H gt overset( - ) ( C) C l_(3) gt C_(6)H_(5)overset( -)(C ) H_(2)gt (CH_(3))_(3) overset( - ) (C ) `

C

`overset( -)( C ) Cl_(3) gt C_(6)H_(5)overset( -)(C ) H_(2) gt (CH_(3))_(2) overset( - )( C ) Hgt ( CH_(3))_(3) overset( -)(C ) `

D

`( CH_(3))_(3) overset( -)(C ) gt ( CH_(3))_(2) overset( -)(C ) H gt C_(6)H_(5)overset( -)( C ) H_(2) gt overset( - )( C )C l_(3)`

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