The brown ring complex compound of iron is formulated as `[Fe (H_(2)O)_(5) (NO)] SO_(4)`. The oxidation state of iron is
The brown ring complex compound of iron is formulated as `[Fe (H_(2)O)_(5) (NO)] SO_(4)`. The oxidation state of iron is
A. `+3`
B. 0
C. `+2`
D. `+1`
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