1.

Calculate the oxidation state of metal ion in: i) `[Ag(CN)_(2)]^(-)` ii) `[Ni(CO)_(4)]` iii) `[Fe(CN)_(6)]^(3-)`

Answer» i) `[Ag(CN)_(2)]^(-)] : x+2(-)=-1 or x=+1`
ii) `[Ag(CN)_(2)]^(-): x+4(0)=0` or x=0
iii) `[Fe(CN)_(6)]^(3-)` : `x+6(-1)=-3` or `x=+3`.


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