Testing for Hydrogen, Oxygen, Carbon Dioxide, Ammonia and Chlorine

The video tutorial explains how to test for the presence of various gases in the laboratory, including hydrogen, oxygen, carbon dioxide, ammonia, and chlorine. Each gas has specific tests: hydrogen produces a squeaky pop with a lit splint, oxygen relights a glowing splint, carbon dioxide turns lime water milky, ammonia turns red litmus paper blue and forms white smoke with hydrochloric acid, and chlorine bleaches blue litmus paper. The tutorial emphasizes the importance of these tests due to the colorless and odorless nature of many gases.

What is the result of ammonia on damp red litmus paper?

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How does chlorine affect damp blue litmus paper?

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