AP EAMCET Engineering 2018 Apr 23 Shift 2 Paper

The molecular orbital configuration of species O22− is shown below.
O22−:(σ1s)2,(σ*1s)2,(σ2s)2,(σ*2s)2, (σ2pz)2,(π2px)2≈(π2py)2,(π*2px)2 ≈(π*2py)2
In bonding orbitals, there are total 10 electrons.
In antibonding orbitals, there are total 8 electrons.