Q. Which among the following species has unequal bond lengths?

JEE MainJEE Main 2021Chemical Bonding and Molecular Structure Report Error

Solution:

Species Hybridisation Bond length
$BF_4^{⊝ }$ $sp^3$ (Tetrahedral) All bond lengths equal
$XeF_4$ $sp^3d^2$ (sq. planar) All bond lengths equal
$SF_4$ $sp^3d$ (see - saw) axial bond length > equitorial bond length
$SiF_4$ $sp^3$ (Tetrahedral) all bond lengths equal