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In the test for nitrate ion, the brown ring formed has a formula [Fe(H2O)5NO]SO4 . The oxidation number of iron in this complex is

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In the test for nitrate ion, the brown ring formed has a formula [Fe(H2O)5NO]SO4 . The oxidation number of iron in this complex is

(A)  + 1 (B)  + 2 (C) + 3 (D)  0.

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Best answer

Correct option (A) + 1

Explanation:

O.N. of Fe is + 1 : x + 5(0) + 0 = + 2 or x = + 1.

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