SELECT * FROM question_mgmt as q WHERE id=1957 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=64 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

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-

Answer:

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


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