GCSE Chemistry - Tests for Anions - Carbonate, Sulfate and Halide Ions #65

The video tutorial explains how to test for anions, specifically carbonate, sulphate, and halide ions. The carbonate test involves adding hydrochloric acid to the sample and checking for carbon dioxide production by using lime water. The sulphate test uses barium chloride to form a white precipitate if sulphates are present, after removing impurities with hydrochloric acid. The halide test involves using silver nitrate to form precipitates of different colors depending on the halide present, after removing impurities with nitric acid.

What are the colors of the precipitates formed when testing for chloride, bromide, and iodide ions?

Explain the halide test and the expected results for different halide ions.