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  3. Chemistry
  4. Amongst the following, the most stable complex is

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Q. Amongst the following, the most stable complex is

NTA AbhyasNTA Abhyas 2022

Solution:

In all these complexes, Fe is in +3 oxidation state. However, the complex ([Fe(C2O4)3]3-) is a chelate because three $\text{C}_{2} \text{O}_{4}^{2 -}$ ions act as the chelating ligands. Thus, the most stable complex is [Fe(C2O4)3]3-.