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Q.

The sum of the number of lone pairs of electrons on each central atom in the following species is:TeBr62−,BrF2+,SNF3 and XeF2 [At. Nos. N=7,F=9,S=16,Br=35,Te=52,Xe=54 ]

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answer is 6.

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Detailed Solution

TeBr62−− One lone pair. BrF2+−Two lone pairs. SNF3− Nil lone pair. XeF2−Three lone pairs.
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