Identify the incorrect statement related to PCl5 from the following

Question : Identify the incorrect statement related to PCl₅ from the following :

(1) Three equatorial P-Cl bonds make an angle of 120° with
each other.

(2) Two axial P-Cl bonds make an angle of 180° with each
other.

(3) Axial P-Cl bonds are longer than equatorial P-Cl bonds.

(4) PCl₅ molecule is non-reactive.

answer : from all above options the correct answer is option “(4) PCl₅ molecule is non-reactive.” because PCl₅ contains longer and weaker axial bonds that is why PCl₅ is reactive and in option 4th , given that  PCl₅ molecule is non-reactive hence this is incorrect statement about PCl₅ , that is why we have marked this option correct answer as per our question requirement.

Phosphorus in PCl₅ is sp³d hybridized . All five hybrid orbitals in sp³d hybridization are not equal. There are three equatorial P-Cl and two axial bonds in PCl₅ with angle 120 degree and 90 degree respectively. The structure of PCl₅ is as follows

PCl₅ is reactive due to weaker axial P-Cl bond.