JEE MainChemistryChemical Bonding and Molecular Structure
Which among the following molecules has a non-zero dipole moment, involves sp ^3 d hybridization of its central atom, and has all of its constituent atoms lying in the same plane?
Options
- ASF ₄
- BXeF ₂
- CClF ₃
- DPCl ₅
Correct answer
C. ClF ₃
Step-by-step solution
Let us evaluate the given molecules based on the three criteria: non-zero dipole moment (polar), sp ^3 d hybridization, and coplanarity of all atoms. SF ₄ : Steric number = 6 + 4 2 = 5 ( sp ^3 d ). It has 1 lone pair, resulting in a see-saw shape. It is polar ( 0 ), but its atoms do not lie in the same plane (non-planar). XeF ₂ : Steric number = 8 + 2 2 = 5 ( sp ^3 d ). It has 3 lone pairs, resulting in a linear shape. It is planar, but due to its symmetrical linear geometry, its dipole moment is zero ( = 0 ). ClF