KEAM 2016 Physics and Chemistry Paper

All statements are true except (III), that both are outer orbital complexes In fact.
In both the given complexes, the central metal is in the same oxidation state.
i.e +3
[CoF6]3− due to weak ligand (F) does not go for pairing and show outeroctahedral orbital complex (sp3d2) As it has five unpaired electrons, therefore, it is paramagnetic in nature
While [Co(C2O4)3|3− due to strong bidentate ligand. go for pairing and forms inner octahedral orbital complex(d2sp3) As it does not have unpaired electrons.
therefore it is diamagnetic in nature.