Question

A reaction between ammonia and boron trifluoride is given below:
$:N{H}_3+B{F}_3\to H_{3}N:B{F}_3$
Identify the acid and base in this reaction. Which theory explains it? What is the hybridisation of $B$ and $N$ in the reactants?

Answer 1

$N{H}_3$ is Lewis base while $B{F}_3$ is Lewis acid. Lewis electronic theory of acids and bases explains it.

Hybridisation state: $N$ in $N{H}_3$ is $s{p}^3$ hybridised and Boron in $B{F}_3$ is $s{p}^2$ hybridised.