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Amongst the Following, the Most Stable Complex is - CBSE (Science) Class 12 - Chemistry

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Question

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−

Solution 1

We know that the stability of a complex increases by chelation. Therefore, the most stable complex is [Fe(C2O4)3]3−.

Then

Solution 2

In each of the given complex, Fe is in + 3 oxidation state. As C2042-is didentate chelating ligand, it forms chelate rings and hence (iii) out of complexes given above is the most stable complex.

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Chemistry Textbook for Class 12 (2018 to Current)
Chapter 9: Coordinate Compounds
Q: 31 | Page no. 260

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Solution Amongst the Following, the Most Stable Complex is Concept: Importance and Applications of Coordination Compounds.
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