Bond Order | MCQs

Explanation

Bond order = ½ (Number of bonding electrons − Number of antibonding electrons)  

For H₂:  

- Bonding electrons = 2  

- Antibonding electrons = 0  

Bond order = ½ (2 − 0) = 1

Explanation

 To calculate the bond order of O2²⁻, we need to construct a molecular orbital diagram.

The molecule has 18 electrons (12 from oxygen atoms and 6 from the negative charge).

These electrons are filled into the orbitals, starting from the lowest energy level.