Which of the following molecules shows sp ^3 d hybridisation?

Step-by-step solution

The hybridisation of a central atom can be determined using the formula for steric number ( H ): H = 1 2 (V + M - C + A) where V is the number of valence electrons on the central atom, M is the number of monovalent atoms attached, C is the cationic charge, and A is the anionic charge. For PCl ₅ : Central atom is P ( V = 5 ). Number of monovalent Cl atoms ( M = 5 ). H = 1 2 (5 + 5) = 5 A steric number of 5 corresponds to sp ^3 d hybridisation. For SO ₂ : Central atom is S ( V = 6 ). Number of monovalent atoms ( M =