Which of the following is the strongest Lewis | vedclass

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(A) The strength of a conjugate base is inversely proportional to the strength of its corresponding conjugate acid. The conjugate acids of the given b

Vedclass · Accepted Answer

$CH_3^-$

Vedclass · Answer

(A) The strength of a conjugate base is inversely proportional to the strength of its corresponding conjugate acid. The conjugate acids of the given bases are: $CH_3^-$ $\rightarrow$ $CH_4$ $(pK_a \approx 50)$ $NH_2^-$ $\rightarrow$ $NH_3$ $(pK_a \approx 38)$ $OH^-$ $\rightarrow$ $H_2O$ $(pK_a \approx 15.7)$ $F^-$ $\rightarrow$ $HF$ $(pK_a \approx 3.2)$ Since $CH_4$ is the weakest acid among these,its conjugate base $CH_3^-$ is the strongest Lewis base.

Which of the following is the strongest Lewis base?

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