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Amongst the following, the most stable c...

Amongst the following, the most stable complex is
(i) `Fe(H_(2)O)_(6)]^(3+)` (ii) `[Fe(NH_(3))_(6)]^(3+)`
(iii) `[Fe(C_(2)O_(4))_(3)]^(3-)` (iv) `[FeCl_(6)]^(3-)`

Text Solution

Verified by Experts

In each complex, Fe is in +3 state, as `C_(2)O_(4)^(2-)` is didentate chelating ligand, it forms chelate rings and hence, it is the most stable complex.
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