JEE MainChemistryChemical Bonding and Molecular Structure
Consider the following molecules: XeF ₂, XeF ₄, ClF ₃, SF ₄ , and IF ₅ . Among the molecules that possess at least one lone pair of electrons on the central atom AND have a zero dipole moment, identify the one with the maximum number of lone pairs. The specific d-orbital(s) involved in the hybridization of the central atom of this selected molecule is/are:
Options
- Ad _ z^2
- Bd _ x^2-y^2 and d _ z^2
- Cd _ x^2-y^2
- Dd _ xy
Correct answer
A. d _ z^2
Step-by-step solution
First, let us analyze the given molecules for their shape, lone pairs on the central atom, and dipole moment ( ): 1. XeF ₂ : Steric number = 5 ( sp ^3 d ), 3 lone pairs, linear shape, = 0 . 2. XeF ₄ : Steric number = 6 ( sp ^3 d ^2 ), 2 lone pairs, square planar shape, = 0 . 3. ClF ₃ : Steric number = 5 ( sp ^3 d ), 2 lone pairs, T-shaped, 0 . 4. SF ₄ : Steric number = 5 ( sp ^3 d ), 1 lone pair, see-saw shape, 0 . 5. IF ₅ : Steric number = 6 ( sp ^3 d ^2 ), 1 lone pair, square pyramidal shape, 0 . The molecules wi