Arrange the complexes in order of decreasing stability. Rank from most stable to least stable. To rank items as equivalent, overlap them. [Ni (en) (H2O) 4] [FeF6] [Fe (NH3) 6] [Ni (en) 3])

Question

Graves

Chemistry

29 November, 10:28

Arrange the complexes in order of decreasing stability. Rank from most stable to least stable. To rank items as equivalent, overlap them. [Ni (en) (H2O) 4] [FeF6] [Fe (NH3) 6] [Ni (en) 3])

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Answers (1)

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Keagan Ochoa · Answer 1

Answer: [Ni (en) 3] > [Ni (en) (H2O) 4] > [Fe (NH3) 6] > [FeF6]

Explanation:

Generally chelating ligands stabilize the complex more than non chelated ligands and more the no of chelated ligands more the stability.

Here en (ethylenediamine) is a chelated ligand and stabilze the complex more by chelation.

And Strong field ligand (NH3) also stabilze the complex more than weak field ligand (F).

Hence F containing complex is least stable.