To determine the presence of anion and cation in the given salt
Experiment | Observation | Inference |
---|---|---|
Salt + dilute H₂SO₄ | No reaction | Dilute H₂SO₄ group is absent |
Salt + Conc H₂SO₄ | No reaction | Conc H₂SO₄ group is absent |
Confirmatory Test | ||
Barium Chloride Test Salt solution + Dil HCl + BaCl₂ solution | White ppt insoluble in conc. HCl | Presence of SO₄²⁻ is confirmed |
Experiment | Observation | Inference |
---|---|---|
Salt + NaOH solution | Evolution of vapours with ammonical smell | NH₄⁺ may be present |
Bring glass rod dipped in conc. HCl near the mouth of the test tube | Dense white fumes evolve | NH₄⁺ may be present |
Confirmatory Test | ||
Nessler's Reagent Test Salt solution + Nessler's reagent | Reddish-brown ppt is obtained | Presence of NH₄⁺ is confirmed |
The given salt contains NH₄⁺ ions as cation and SO₄²⁻ ions as anion. The salt is NH₄⁺SO₄²⁻.