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in Oxidation-Reduction Reactions by (49.3k points)

During test of nitrate, a complex [Fe (H2O)5 (NO)(SO4)] is formed. What the oxidation number of Fe in this complex ?

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[Fe(H2O)5(NO) (SO4)]
x + 0 + 0 – 2 = 0
x – 2 = 0
x= + 2
∴ Oxidation number of Fe in complex = + 2

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