
(i) Three equatorial P−Cl bonds make an angle of 120∘ with each other is correct.
(ii) Two axial P−Cl bonds make an angle of 180∘ with each other.
(iii) Axial P−Cl 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) PCl5 molecule is reactive (W) is the incorrect answer.