Why in [ Co(NH3)6]3-ammonia act as a strong ligand

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Solution

Ammonia is a strong filed ligand in certain cases especially metals with higher oxidation state. With lower oxidation state it acts as a weak field ligand. Here Co exist in its higher oxidation state as Co⁺³, so ammonia acts as a strong filed ligand and it pairs up electron.

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Why in [ Co(NH3)6]3-ammonia act as a strong ligand

Ammonia is a strong filed ligand in certain cases especially metals with higher oxidation state. With lower oxidation state it acts as a weak field ligand. Here Co exist in its higher oxidation state as Co+3, so ammonia acts as a strong filed ligand and it pairs up electron.

Ammonia is a strong filed ligand in certain cases especially metals with higher oxidation state. With lower oxidation state it acts as a weak field ligand. Here Co exist in its higher oxidation state as Co⁺³, so ammonia acts as a strong filed ligand and it pairs up electron.