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Select the incorrect option regarding test of NO2- radical:(1) A nitrosyl complex is formed. (2) A brown ring is obtained in brown ring test at the junction of two liquids.(3) Formula of brown ring is [Fe(H2O)5(NO)]SO4.(4) When concentrated H2SO4 is added to nitrate salt, very light brown fumes appears. |
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Answer» Correct option is (4) When concentrated H2SO4 is added to nitrate salt, very light brown fumes appears. \(NO_3-+H_2SO_4(conc.)\rightarrow\)NO2↑(reddish brown) + O2 + SO42- + H2O |
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