The brown ring complex compound is formulated as [Fe(H2O)5(NO)] SO4. The oxidation state of iron is
(a) 1
(b) 2
(c) 3
(d) 0
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Correct option is (a) 1
Let, the oxidation state of Fe in [Fe(H2O)5(NO)] SO4 be x.
∴ x + 5 (0) + 1 = + 2
⇒ x = + 1