Question

Write product of the following $S{N}_2$ reaction showing change in stereochemistry.

Answer 1

It is a $S{N}_2$ reaction.

It is a one-step reaction which takes place via the formation of transition state and results in inversion of configuration.

$O{H}^{⊝}$ attacks from below the plane as $B{r}^{-}$ is above the plane.

Thus, the final product has an inversion of configuration.