The compound (s) with two lone pairs of electrons on the central atom

1.	The compound (s) with two lone pairs of electrons on the central atom is (are)
Answer» `BrF_(5)` `CIF_(3)` `XeF_(4)` `Sf_(4)` SOLUTION :In `BrF_(5),Br` has 7 valence electrons ,five are shared with five F atoms . Hence, lonepair =1 In`CIF_(3)` Cl has 7 valence electrons, three are shared with three F atom, lone pairs =2. In`XeF_(4)`,Xe has 8 valence electrons, FOUR are shared with four F atoms, lone pairs =2 In`SF_(4),S` has 6 valence electrons, four are shared with four F atoms, lone pair =1

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