1.

Crystal field theory considers purely ionic bond between metal and ligand. The five d-orbitals in an isolated gaseous metal are degenerate. The degeneracy of the d-orbitals is lost in prsence of ligand which is known as splitting of d-orbitals. Complex in which t(2g)^(3) electronic configuration is not observed.

Answer»

`[Fe(H_(2)O)_(6)]^(3+)`
`[CrF_(6)]^(3-)`
`[Fe(NH_(3))_(6)]^(2+)`

SOLUTION :`[Fe(NH_(3))_(6)]^(2+) d^(6) to t_(2G)^(2,1,1)EG^(1,1)`


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