Indicate the oxidation state of the central metal ion in each of the following complex (a) `[Cu(NH_(3))_(4)]^(2+)` (b) `[Cu(Br_(4))]^(2-)` (c ) `[Cu(CN)_(2)]^(Θ)` (d) `[Cu(NH_(3))_(4)CO_(3)]^(o+)` (e) `[PtCI_(4)]^(2-)` (f) `[Co(NH_(3))_(2)(NO_(2))_(4)]^(Θ)` (g) `Fe(CO)_(5))` (h) `[ZnCI_(4)]^(2-)` (i) `[Fe(en)_(3)]^(2+)` .

Indicate the oxidation state of the central metal ion in each of the f

1.	Indicate the oxidation state of the central metal ion in each of the following complex (a) `[Cu(NH_(3))_(4)]^(2+)` (b) `[Cu(Br_(4))]^(2-)` (c ) `[Cu(CN)_(2)]^(Θ)` (d) `[Cu(NH_(3))_(4)CO_(3)]^(o+)` (e) `[PtCI_(4)]^(2-)` (f) `[Co(NH_(3))_(2)(NO_(2))_(4)]^(Θ)` (g) `Fe(CO)_(5))` (h) `[ZnCI_(4)]^(2-)` (i) `[Fe(en)_(3)]^(2+)` .
Answer» (a) `+2` , (b) `+2` , (c ) `+1` (d) `+3` , (e) `+2` , (f) `+3` (g) `0` `(h) `+2` , (i) `+2` .

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