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 |
|---|---|---|
| Flame test | Lilac flame | Presence of K⁺ is indicated |
| Confirmatory Test | ||
| Sodium Cobaltinitrite Test Salt solution + Sodium Cobaltinitrite reagent | Yellow precipitate | Presence of K⁺ is confirmed |
The given salt contains K⁺ ions as cation and F⁻ ions as anion. The salt is K⁺F⁻.