Question

The hybridisation of boron in $B{H}_3$ molecule is .

• A. $s{p}^3$
• B. $s{p}^2$
• C. $sp$
• D. $s{p}^{3}d$

Answer 1

The correct option is B $s{p}^2$

$s{p}^2$
The electronic configuration in excited state of boran is $1s^2$ $2s^1$ $2p^2$ . One s-orbital and two p- orbitals in the valence shell involves in hybridisation.