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The brown ring test for nitrates depends on (A) the reduction of nitrate to nitric oxide (B) oxidation of nitric oxide to nitrogen dioxide (C) reduction of ferrous sulphate to iron (D) oxidising action of sulphuric acid

The brown ring test for nitrates depends on
(A) the reduction of nitrate to nitric oxide
(B) oxidation of nitric oxide to nitrogen dioxide
(C) reduction of ferrous sulphate to iron
(D) oxidising action of sulphuric acid

Grade:12

1 Answers

Gaurav
askIITians Faculty 164 Points
9 years ago

Hello Student
Brown ring test dependsthe reduction of nitrate to nitric oxide.
NO3-+ 3Fe2++ 4H+→ 3Fe3++ NO + 2H2O
[Fe(H2O)6]2++ NO → [Fe(H2O)5(NO)]2++ H2O

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