Q. Based on VSEPR theory, the number of 90 degree $F - Br - F$ angles in $BrF_{5}$ is
A) 0
B) 1
C) 2
D) 3
Explanation
(a)
In $BrF_{5}$ number of electrons = 6
(1 lp +5 bp)
[image:4_image165.emf]
So, the structure is supposed to be square pyramidal but will be distorted because of additional lp-bp interaction.
Additional lp-bp interaction reduced the all bond angle and do not let any angle to be $90{^\circ}.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.