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Give the oxidation state, d-orbital occu...

Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes:
`K_(3)[Co(C_(2)O_(4))_(3)]`

Text Solution

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In `K_(3)[Co(C_(2)O_(4))_(3)]`,
`(+1)3+x+(-2)3=0`
`+3+x-6=0rArrx-3=0`
`rArrx=+3`
Thus, Co is present as `Co^(3+)`.
`""_(27)Co=[Ar]3d^(7)3s^(2)`
`Co^(3+)=[Ar]3d^(6)`
So, d-orbital occupation is `d^(6)ort_(2g)^(6)e_(g)^(0)`.
(As `C_(2)O_(4)^(2-)` is strong field ligand)
C.N of Co = 3 `xx` denticity of `C_(2)O_(4)=3xx2=6`
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