1.

In the complex `[Fe(H_(2)O)_(6)]^(3+)` `[Fe(CN)_(6)]^(3-)` `[Fe(C_(2)O_(4))_(3)]^(3-)` and `[FeCl_(6)]^(3-)`, that complex that has highest stability isA. `[Fe(H_(2)O)_(6)]^(3+)`B. `[Fe(CN)_(6)]^(3-)`C. `[Fe(C_(2)O_(4))_(3)]^(3-)`D. `[FeCl_(6)]^(3-)`

Answer» Correct Answer - C
The central metal ion in all complexes is `Fe^(3+)`. `C_(2)O_(4)^(2-)` a negative bidentate ligand will form more stble complex than monodentate neutral or negative ligands.


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