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what is brown ring test |
| The brown ring test(common nitrate test) can be performed by adding FeSO4 to the solution, then slowly adding concentrated H2SO4.a brown ring is formed at the junction of 2 liquids, which will indicate the presence of the nitrate ion. 4 FeSO4 + 2 H2SO4 ? 2 Fe2(SO4)3 + 2H2 |
