MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryCoordination compoundsValence Bond Theory

Choose the correct statement

A.[Co(NH3)6]2+✓ Correct

B.Tetrahedral complexes are more stable than

C.[Fe(CN)6]3– is stable but [FeF6]3– is unstable

D.The [Cu(NH3)4]2+ ion has a tetrahedral geometry

Explanation

The oxidized form 3+ 3 6 Co(NH ) here the central metal is in +3 oxidation state. As ammonia is a strong field ligand Hence, pairing will occur and there will be no unpaired electron in the d orbitals. Hence, it will be diamagnetic.

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