The order of decreasing stability of the following carbanions is (i) `(CH_(3))_(3)C^(-)` (ii) `(CH_(3))_(2)CH^(-)` (iii) `CH_(3)CH_(2)^(-)` (iv) `C_(6)H_(5)CH_(2)^(-)`A. (i)gt(ii)gt(iii)gt(iv)B. (iv)gt(iii)gt(ii)gt(i)C. (iv)gt(i)gt(ii)gt(iii)D. (iii)gt(ii)gt(i)gt(Iv)

The order of decreasing stability of the following carbanions is (i) `

1.	The order of decreasing stability of the following carbanions is (i) `(CH_(3))_(3)C^(-)` (ii) `(CH_(3))_(2)CH^(-)` (iii) `CH_(3)CH_(2)^(-)` (iv) `C_(6)H_(5)CH_(2)^(-)`A. (i)gt(ii)gt(iii)gt(iv)B. (iv)gt(iii)gt(ii)gt(i)C. (iv)gt(i)gt(ii)gt(iii)D. (iii)gt(ii)gt(i)gt(Iv)
Answer» Correct Answer - B Stability of carbanions decreases with increase in `+I` effect. +I effect is maximum in `(CH_(3))_(3)C^(-)`, followed by `(CH_(3))_(2)CH^(-) and CH_(3)CH_(2)^(-)`. In `C_(6)H_(5)CH_(2)^(-)`, resonance effect increases the stability. Hence, the order of stability is (iv)gt(iii)gt(ii)gt(i)

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The order of decreasing stability of the following carbanions is (i) `(CH_(3))_(3)C^(-)` (ii) `(CH_(3))_(2)CH^(-)` (iii) `CH_(3)CH_(2)^(-)` (iv) `C_(6)H_(5)CH_(2)^(-)`A. (i)gt(ii)gt(iii)gt(iv)B. (iv)gt(iii)gt(ii)gt(i)C. (iv)gt(i)gt(ii)gt(iii)D. (iii)gt(ii)gt(i)gt(Iv)

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