Question

Predict the oxidation state of the central metal ion: K2[CrCO(CN)5]

Answer 1

Answer:

Central metal atom is Cr

So Let Cr be X

2+X+(-1)+5(-1)=-1

X=7

oxidation state of Cr is 7

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Answer 2

• Answer:3

Explanation:

2+x-1-5=-1

x-4=-1

x=3