JEE Advanced 2017 Paper 1 Chemistry Q10

Chemistry · Covalent Bonding & Molecular Structure

Problem

The sum of the number of lone pairs of electrons on each central atom in the following species is

[\mathrm{TeBr_6}]^{2-}

[\mathrm{BrF_2}]^+

\mathrm{SNF_3}

, and

[\mathrm{XeF_3}]^-

(Atomic numbers: N = 7, F = 9, S = 16, Br = 35, Te = 52, Xe = 54)