1.

Amongst the following, the most stable complex is

Answer»

`[Fe(H_(2)O)_(6)]^(3+)`
`[Fe(NH_(3))_(6)]^(3+)`
`[Fe(C_(2)O_(4))_(3)]^(3-)`
`[FeCl_(6)]^(3-)`

Solution :In each of the given COMPLEX, Fe is in +3 STATE. As `C_(2)O_(4)^(2-)` is didentate chelating ligand, it forms CHELATE rings and HENCE is the most stable complex.


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