1.

The diamagnetic species isA. `[Ni(CN)_(4)]^(2-)`B. `[NiCl_(4)]^(2-)`C. `[CoCl_(4)]^(2-)`D. `[CoF_(6)]^(2-)`

Answer» Correct Answer - A
`CN^(-)` is a straght ligand where as `Cl^(-) and F^(-)` are weak ligands . Hence, electrons in `|Ni(CN)_(4)|^(2-)` pair up and it is diamagnetic.


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