NEET2019ChemistryChemical Bonding and Molecular StructureActual
Identify the incorrect statement related to P C l 5 from the following:
Options
- AThree equatorial P - C l bonds make an angle of 120 o with each other
- BTwo axial P - C l bonds make an angle of 180 o with each other
- CAxial P - C l bonds are longer than equatorial P - C l bonds
- DP C l 5 molecule is non-reactive
Correct answer
D. P C l 5 molecule is non-reactive
Step-by-step solution
(i) Three equatorial P - C l bonds make an angle of 120 ° with each other is correct. (ii) Two axial P - C l bonds make an angle of 180 ° with each other. (iii) Axial P - C l bonds are longer than equatorial because according to Bent’s rule the hybrid orbitals that contain more p - character or less s - character are placed on axial position and have more bond length. (iv) P C l 5 molecule is reactive (W) is the incorrect answer.