Number of complexes with even number of electrons in t2g orbitals is -
[Fe(H2O)6]2+, [Co(H2O)6]2+, [Co(H2O)6]3+, [Cu(H2O)6]2+, [Cr(H2O)6]2+
1
1
2
3
3
2
4
5
Number of complexes with even number of electrons in t2g orbitals is -
[Fe(H2O)6]2+, [Co(H2O)6]2+, [Co(H2O)6]3+, [Cu(H2O)6]2+, [Cr(H2O)6]2+