Question

The hybridization of central atom in dimer of $B{H}_3$ and $Be{H}_2$ is:

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

Answer 1

The correct option is B

$s{p}^3,s{p}^2$

The boron atoms in diborane behave almost like a tetrahedral centre so we can make a case for $s{p}^3$ hybridized boron atoms. For the Beryllium analogue, the beryllium atoms are nearly $s{p}^2$ hybridized.