JEE Main202227 Jun 2022Evening ShiftChemistryChemical Bonding and Molecular StructureActual
Identify the incorrect statement for PCl 5 from the following.
Options
- AIn this molecule, orbitals of phosphorous are assumed to undergo sp 3 d hybridization.
- BThe geometry of PCl 5 is trigonal bipyramidal.
- CPCl 5 has two axial bonds stronger than three equatorial bonds.
- DThe three equatorial bonds of PCl 5 lie in a plane.
Correct answer
C. PCl 5 has two axial bonds stronger than three equatorial bonds.
Step-by-step solution
sp 3 d hybridization is shown in phosphorus penta chloride (PCl 5 ). The grounds state and the excited state outer electronic configurations of phosphorus (Z=15) are represented below Now the five orbitals (i.e., one s, three p and one d orbitals) are available for hybridization to yield a set of five sp 3 d hybrid orbitals which are directed towards the five corners of a trigonal bipyramidal as depicted in the below. It should be noted that tall the bond angles in trigonal bipyramidal geometry are not equivalent.