Question

Is the three any change in the hybrid state of B and N atoms as a result of the following reaction.
$B{F}_3+N{H}_3\to N{H}_3^{+}-B{F}_3^{-}$.

Answer 1

In the reaction, ${BF}_3+{NH}_3⟶{NH}_3^{+}-{BF}_3^{-}$

In this reaction the lone pair of ammonia is shared between ammonia and $B{F}_3$.

The hybridisation of ${}^{\prime }{B}^{\prime }$ changes from ${sp}^2$ to ${sp}^3$.

Hybridization of ${}^{\prime }{N}^{\prime }$ doesn't change and equal to ${sp}^3$.