The number of species below that have two lone pairs of electrons on their central atom is ........... (Round off to the nearest integer).
\(SF _4, BF _4^{-}, ClF _3, AsF _3, PCl _5, BrF _5, XeF _4, SF _6\)

[JEE Main 2021, 18 Mar (Shift 2)]

Question

The number of species below that have two lone pairs of electrons on their central atom is ........... (Round off to the nearest integer).
\(SF _4, BF _4^{-}, ClF _3, AsF _3, PCl _5, BrF _5, XeF _4, SF _6\)

[JEE Main 2021, 18 Mar (Shift 2)]

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