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 + dilute HCl | White precipitate | Pb²⁺ may be present |
Confirmatory Tests | ||
Potassium Iodide Test Salt solution + KI solution | Yellow precipitate | Presence of Pb²⁺ is confirmed |
Potassium Dichromate Test Salt solution + K₂Cr₂O₇ solution | Yellow precipitate | Presence of Pb²⁺ is confirmed |
The given salt contains Pb²⁺ ions as cation and F⁻ ions as anion. The salt is Pb²⁺F⁻.