What is electronic arrangement of metal atom/ion in octahedral complex with configuration

CHEMISTRY · Single correct · CBSE · Chemistry · Coordination Compounds · Coordination Compounds

Problem

What is electronic arrangement of metal atom/ion in octahedral complex with

d^4

configuration, if

\Delta_0 < \text{pairing energy}

? (1)

t_{2g}^4 e_g^0

(2)

e_g^4 t_{2g}^0

(3)

t_{2g}^3 e_g^1

(4)

e_g^2 t_{2g}^2