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Which of the following is the most stable carbanion?A. `(CH_(3))_(3)C:^(-)`B. `CH_(3):^(-)`C. `CH_(3)CH_(2):^(-)`D. `(CH_(3))_(2)CH:^(-)` |
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Answer» Correct Answer - B Alkyl groups exert `+I` effect. By releasing electron density towards the negatively charged `C` atom of carbanion, they intensify its negative charge and destabilize the carbanion. Thus, the stability of carbanions decreases with the increase in the number of alkyl groups.As a result, methyl anion, `CH_(3):^(-)` having no alkyl group is the most stable. |
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