Chemistry Part-I

Book: Chemistry Part-I

Chapter: 9. Coordination Compounds

Subject: Chemistry - Class 12th

Q. No. 31 of Exercises

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Amongst the following the most stable complex is

(i) [Fe(H2O)6]3+

(ii) [Fe(NH3)6]3+

(iii) [Fe(C2O4)3]3-

(iv) [FeCl6]3-

Among all the complex given [Fe(C2O4)3]3- have a bidentate ligand whereas all the other three have unidentated ligand. Now we know that in chelate effect, the bidentate ligand forms a ring like structure and complex so formed is very stable with strong bond between them.

So, [Fe(C2O4)3]3- is the most stable complex.


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