99 Percentile Qs Bank for JEE MainChemistryChemical Bonding and Molecular Structure
Which of the following is TRUE regarding hybridisation in PCl 5 ?
Options
- AAll the bond angles in PCl 5 are equivalent.
- BAxial and equatorial bonds have the same bond length.
- COn orbital overlap between phosphorus and chlorine, five sp 3  d-p sigma covalent bonds are formed.
- DAxial and equatorial bonds have equivalent bond energies.
Correct answer
C. On orbital overlap between phosphorus and chlorine, five sp 3  d-p sigma covalent bonds are formed.
Step-by-step solution
On orbital overlap between phosphorus and chlorine, five sp 3  d-p sigma covalent bonds are formed. This statement is true, as PCl 5 carries five sigma bonds and all these sigma bonds are used for hybridisation according to the valence shell electron pair repulsion theory. Structure of PCl 5 is shown below: And we can see here, that axial bonds and equatorial bonds, both are not of the same length.