Which of the following compounds is electron- | vedclass

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(A) In $BCl_3$,the central Boron atom has only $6$ valence electrons in its valence shell after forming three covalent bonds with Chlorine atoms.Since

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$BCl_3$

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(A) In $BCl_3$,the central Boron atom has only $6$ valence electrons in its valence shell after forming three covalent bonds with Chlorine atoms.Since it has fewer than $8$ electrons,it is considered an electron-deficient compound (hypovalent).In $PCl_3$,$P$ has $8$ electrons (octet complete).In $PCl_5$,$P$ has $10$ electrons (expanded octet).In $NH_3$,$N$ has $8$ electrons (octet complete).

Which of the following compounds is electron-deficient?

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