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Arrange the following carbanions in orde...

Arrange the following carbanions in order of their decreasing stability.
A) `H_(3)C-C-=C^(-)`
B) `H-C-=C^(-)`
C) `H_(3)C-Cbar(H)_(2)`

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(a) `CH_(3)C(Cl) = CHCH_(2)CH_(3), CH_(3)CH = CHCH_(2)CH_(2)Cl, ClCH_(2)CH = CHCH_(2)CH_(3)`
(b) `CH_(2) = CHBr, CH_(3)CH_(2)Br, CH_(3)CH(Br)CH_(3), CH_(2) = CHCH(Br)CH_(3)`
(c) `CH_(3)CH_(2)CH_(2)Cl, (CH_(3))_(2)CHCl, (CH_(3))_(3)C Cl, C_(6)H_(5)C(CH_(3))_(2)Cl`
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