1.

Which of the following are paramagnetic

Answer»

`[NiCl_(4)]^(2-)`
`[Ni(NH_(3))_(4)]^(2+)`
`[MnCl_(4)]^(2-)`
`[CuCl_(4)]^(2-)`

Solution :The number of unpaired electrons in these complexes are respectively.
`{:([NiCl_(4)]^(2-),""2),([Ni(CN)_(4)],""0),([MnCl_(4)]^(2-),""5),([CuCl_(4)]^(2-),""1):}`
`CN^(-)` a string field LIGAND and `CL^(-)`is a weak field ligand. So only in `[Ni(CN)_(4)]^(2-)` electronic regrouping occurs.


Discussion

No Comment Found