The brown ring test for nitrates depends on :- (A) The reduction of nitrate to nitric oxide (B) Oxid — NEET Chemistry Past Papers Chemistry Question

Question

The brown ring test for nitrates depends on :- (A) The reduction of nitrate to nitric oxide (B) Oxidation of nitric oxide to nitrogendioxide (C) Reduction of ferrous sulphate to Iron (D) Oxidising action of sulphuric acid