A) Nitrate
B) Nitrite
C) Bromide
D) Iron
Correct Answer: A
Solution :
At the junction of salt solution and FeSO4 solution with conc. H2SO4 a brown ring is obtained\[\underset{\text{Brown ring}}{\mathop{(FeS{{O}_{4}}.NO)}}\,\]You need to login to perform this action.
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