Base strength of carbanions is in the order of:

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Base strength of carbanions is in the order of:

A $CH_{3}^{-} > NH_{2}^{-} > OH^{-} > F^{-}$
B $NH_{2}^{-} > CH_{3}^{-} > OH^{-} > F^{-}$
C $F^{-} > OH^{-} > NH_{2}^{-} > CH_{3}^{-}$
D $OH^{-} > F^{-} > NH_{2}^{-} > CH_{3}^{-}$

Solution & Step-by-step Explanation

Across a period, electronegativity increases (C < N < O < F), so the ability to hold electrons increases, making the species a weaker base.Basicity: CH_{3}^{-} > NH_{2}^{-} > OH^{-} > F^{-} .

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Base strength of carbanions is in the order of:

CH_{3}^{-} > NH_{2}^{-} > OH^{-} > F^{-}

NH_{2}^{-} > CH_{3}^{-} > OH^{-} > F^{-}

F^{-} > OH^{-} > NH_{2}^{-} > CH_{3}^{-}

OH^{-} > F^{-} > NH_{2}^{-} > CH_{3}^{-}

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Organic Chemistry Basicity Carbanions

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