Which among the following molecules is (a) involved in $\mathrm{sp}^3 \mathrm{~d}$ hybridization, (b) has different bond lengths and (c) has lone pair of electrons on the central atom?

• A

  $\mathrm{PF}_5$
• B

  $\mathrm{XeF}_4$
• Correct answer
  C

  $\mathrm{SF}_4$
• D

  $\mathrm{XeF}_2$

Solution

$\mathrm{XeF}_4:-\mathrm{sp}^3 \mathrm{~d}^2$ Hybridisation

Hence, the correct answer is option: 'C'.