Which of the following molecules acts as a Le | vedclass

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(D) Lewis acid is defined as an electron-pair acceptor.In $(CH_3)_3B$,the central boron atom has only $6$ electrons in its valence shell,meaning it ha

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$(CH_3)_3B$

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(D) Lewis acid is defined as an electron-pair acceptor.In $(CH_3)_3B$,the central boron atom has only $6$ electrons in its valence shell,meaning it has an incomplete octet.Therefore,it can accept a lone pair of electrons to complete its octet,acting as a Lewis acid.In contrast,$(CH_3)_2O$,$(CH_3)_3P$,and $(CH_3)_3N$ all have central atoms with complete octets and at least one lone pair of electrons,which allows them to act as Lewis bases (electron-pair donors).

Which of the following molecules acts as a Lewis acid?

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