1.

Which is high spin complex :

Answer»

`CoCl_(6)^(3-)`
`FeF_(6)^(3-)`
`Co(NH_(3))_(6)^(3_+)`
`[NI(CN)_(4)]^(2-)`

SOLUTION :Both `F^(-)` and `Cl^(-)` are WEAK fields ligands. But `NH_(3)` and `CN^(-)` are STRONG field ligands regrouping occurs in the later two compounds.


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