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Which of the two is more stable and why ? K_(4)[Fe(CN)_(6)] or K_(3)[Fe(CN)_(6)]

Answer»

Solution :The STABILITY of a coordination COMPOUND depends UPON the charge on the central atom.
GREATER the charge on the central atom, greater is the stability.
In `K_(3)[Fe(CN)_(6)]`, the charge on Fe is +3, while in `K_(4)[Fe(CN)_(6)]`, the charge is +2. Therefore, `K_(3)[Fe(CN)_(6)]` is more stable.


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