Which of these is least likely to act as a Le | vedclass

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(A) Lewis base is defined as a species that can donate an electron pair.$BF_3$ is an electron-deficient molecule with an incomplete octet around the c

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$BF_3$

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(A) Lewis base is defined as a species that can donate an electron pair.$BF_3$ is an electron-deficient molecule with an incomplete octet around the central Boron atom ($6$ electrons).Because it has an empty orbital,it acts as a Lewis acid by accepting an electron pair.In contrast,$PF_3$,$CO$,and $F^{-}$ all possess at least one lone pair of electrons that can be donated,allowing them to act as Lewis bases.Therefore,$BF_3$ is the least likely to act as a Lewis base.

Which of these is least likely to act as a Lewis base?

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