To determine the presence of anion and cation in the given salt
| Experiment | Observation | Inference |
|---|---|---|
| Confirmatory Test | ||
| Brown Ring Test Salt Solution + FeSO₄ + Conc H₂SO₄ (added carefully along the sides of the test tube) | Brown ring forms at the junction of two liquids | Presence of NO₃⁻ anion 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 NO₃⁻ ions as anion. The salt is NH₄⁺NO₃⁻.