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Chemical Tests for Chloride Video Lecture - Class 11

FAQs on Chemical Tests for Chloride Video Lecture - Class 11

1. What are some common chemical tests for chloride?
Ans. Some common chemical tests for chloride include the silver nitrate test, the barium chloride test, the mercurous nitrate test, and the potassium chromate test. These tests can be used to detect the presence of chloride ions in a solution.
2. How does the silver nitrate test work for detecting chloride ions?
Ans. The silver nitrate test involves adding a few drops of silver nitrate solution to the sample solution. If chloride ions are present, a white precipitate of silver chloride forms. The formation of this precipitate confirms the presence of chloride ions.
3. Can the barium chloride test be used to detect chloride ions in solid samples?
Ans. Yes, the barium chloride test can be used to detect chloride ions in solid samples. In this test, a small amount of the solid sample is heated with concentrated sulfuric acid. The resulting gas is then bubbled through a solution of barium chloride. If chloride ions are present, a white precipitate of barium chloride forms.
4. Is there a specific test for differentiating chloride ions from other halide ions?
Ans. Yes, the mercurous nitrate test can be used to differentiate chloride ions from other halide ions. In this test, a few drops of mercurous nitrate solution are added to the sample solution. If chloride ions are present, a white precipitate of mercurous chloride forms. This precipitate is insoluble in dilute nitric acid, while precipitates of other halides dissolve in nitric acid.
5. Can the presence of chloride ions be detected using a colorimetric test?
Ans. Yes, the presence of chloride ions can be detected using a colorimetric test. The potassium chromate test can be used for this purpose. In this test, a few drops of potassium chromate solution are added to the sample solution. If chloride ions are present, a yellow precipitate of silver chromate forms. The intensity of the yellow color can be measured using a colorimeter to determine the concentration of chloride ions.
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