Tests for Gases and Anions
- Created by: Gaynor
- Created on: 26-03-18 15:22
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- Tests for Gases and Anions
- Chlorine
- Chlorine bleaches damp litmus paper, turning it white
- Oxygen
- If you put a glowing splint inside a test tube containing oxygen, the oxygen will relight the glowing splint
- Carbon Dioxide
- Bubbling carbon dioxide through an aqueous solution of limewater causes the solution to turn cloudy
- Hydrogen
- Carbonates
- Add a few drops of dilute acid then connect the test tube to a test tube with limewater
- Limewater will go cloudy if postive
- Sulfates
- Add a couple of drops of dilute hydrochloric acid and a couple of drops of barium chloride solution to the substance
- Halides
- Add a couple of drops of dilute nitric acid and a couple of drops of silver nitrate solution
- Chloride
- White precipitate
- Bromide
- Cream precipitate
- Iodide
- Yellow precipitate
- Chlorine
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