The sum of the number of lone pairs of electrons on each central atom in the following species i s  …

The sum of the number of lone pairs of electrons on each central atom in the following species is  TeBr62-, BrF2+, SNF3 and XeF3- [Atomic number : N = 7, F = 9, S = 16, Br = 35, Te = 52, Xe = 54]

Solution

  Number of σ-bonds formed by central metal atom/ ion Number of lone pairs on central metal atom/ ion
(i)  In TeBr62-  6  1
(ii) InBrF2+   2   2
(iii)  InSNF3  4  0
(iv)  InXeF3-  3  3

    Total number of lone pairs of electrons =1+2+0+3

=6

Asked in: JEE Advanced 2017 (Paper 1)

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