Question
Consider, $\mathrm{PF}_{5}, \mathrm{BrF}_{5}, \mathrm{PCl}_{3}, \mathrm{SF}_{6},\left[\mathrm{ICl}_{4}\right]^{-}, \mathrm{ClF}_{3}$ and $\mathrm{IF}_{5}$.
Amongst the above molecule(s)/ion(s), the number of molecule(s)/ion(s) having $\mathrm{sp}^{3}\mathrm{~d}^{2}$ hybridisation is __________.
Correct Answer
4