(b)
[image:12_image363.emf]
In this reaction inversion takes place. Hence, it is an example of $S_{N}2\$reaction. In this mechanism the attack of $OH^{-}\$ions take place from the back side while the $Br^{-}$ ion leaves from the front side
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.