Among [Fe(H_2O)_6]^{3+},[Fe(CN)_6]^{3-},[Fe(C | vedclass

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(C) In all the given complexes,the central metal ion $Fe$ is in the $+3$ oxidation state.$[Fe(C_2O_4)_3]^{3-}$ contains oxalate ions,which are bidenta

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$[Fe(C_2O_4)_3]^{3-}$

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(C) In all the given complexes,the central metal ion $Fe$ is in the $+3$ oxidation state.$[Fe(C_2O_4)_3]^{3-}$ contains oxalate ions,which are bidentate ligands.These ligands form a ring structure with the metal ion,known as the chelate effect.Chelate complexes are significantly more stable than complexes with monodentate ligands due to the increased entropy associated with chelation.

Among $[Fe(H_2O)_6]^{3+}$,$[Fe(CN)_6]^{3-}$,$[Fe(C_2O_4)_3]^{3-}$,and $[FeCl_6]^{3-}$,which complex is the most stable?

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