To determine the presence of anion and cation in the given salt
| Experiment | Observation | Inference |
|---|---|---|
| Salt + Conc H₂SO₄ | Colorless gas evolves that etches glass | F⁻ may be present |
| Confirmatory Test | ||
| Calcium Chloride Test Salt Solution + CaCl₂ solution | White gelatinous ppt forms | Presence of F⁻ anion is confirmed |
| Experiment | Observation | Inference |
|---|---|---|
| Salt solution + NaOH solution | Blue precipitate | Cu²⁺ may be present |
| Confirmatory Test | ||
| Potassium Ferrocyanide Test Salt solution + K₄[Fe(CN)₆] solution | Chocolate brown precipitate | Presence of Cu²⁺ is confirmed |
The given salt contains Cu²⁺ ions as cation and F⁻ ions as anion. The salt is Cu²⁺F⁻.