Question

The shape of which of the following molecules will not be distorted?

• A. $Br{F}_3$
• B. $Cl{F}_3$
• C. $Xe{F}_4$
• D. $Xe{F}_6$

Answer 1

The correct option is C $Xe{F}_4$

a) $Br{F}_3$ has T-shape but perfect T but little distorted due to repulsion between lone pair and bond pair.
b) $Cl{F}_3$ has T-shape but perfect T but little distorted due to repulsion between lone pair and bond pair.
c)$Xe{F}_4$ square planar and lone pairs and above and below the plane. Therefore, no distortion.
d) $Xe{F}_6$ has distorted octahedral shape.