NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice
In which of the following molecules all A - X bond lengths are identical? [A = central atom and X = surrounding atom]
Options
- AX e F 4
- BP F 5
- CBoth A and B
- DS F 4
Correct answer
A. X e F 4
Step-by-step solution
Hybridisation of Xe → s p 3 d 2 All four X e - F bonds are of equal lengths as they lie in the same plane and are at 90 ° apart from each other. Hybridisation → s p 3 d ( P - F ) a x i a l > ( 1.58 Å ) ( P - F ) e q u a t o r i a l ( 1.53 Å ) Hybridisation → s p 3 d ( S - F ) a x i a l > ( S - F ) e q u a t o r i a l