Which of the following is a Lewis acid?

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Question

(C) Lewis acid is defined as an electron-pair acceptor.In $(CH_3)_3B$ (trimethylborane),the boron atom has only $6$ electrons in its valence shell,mak

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$(CH_3)_3B$

Vedclass · Answer

(C) Lewis acid is defined as an electron-pair acceptor.In $(CH_3)_3B$ (trimethylborane),the boron atom has only $6$ electrons in its valence shell,making it electron-deficient.Therefore,it can accept an electron pair to complete its octet,acting as a Lewis acid.$S$ and $CH_2$ are not typically classified as Lewis acids in this context.

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