Testing for gases in the air 0.0 / 5 ? ChemistryAirAll LevelsAll boards Created by: Z ShahCreated on: 25-04-15 14:11 What are the gases present in the air? Nitrogen (78%) Oxygen (21%) Carbon Dioxide ( 1 of 6 What is the test for Hydrogen? Collect the colourless gas. Hold a burning splint in the gas. It burns with a squeaky pop! 2 of 6 What is the test for oxygen? Hold a glowing splint in the colourless gas. If it relights, the gas is oxygen. 3 of 6 What is the test for carbon dioxide? Bubble the gas through colourless limewater and if it forms a white precipitate (cloudy) the gas is carbon dioxide. 4 of 6 What is the other test for carbon dioxide? Pour the gas over a burning flame. If it extinguishes, the gas is carbon dioxide. 5 of 6 What is the test for water vapour? Expose the water vapour to blue cobalt chloride paper, and it will turn pink. (Works with liquid water) 6 of 6
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