4.8.2 Identification of common gases

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  • Created by: goldstar3
  • Created on: 23-05-18 21:23

4.8.2.1 Test for hydrogen

A burning splint held at the end of a test tube of gas

Hydrogen burns rapidly with a squeaky pop sound

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4.8.2.2 Test for oxygen

A glowing splint inserted into a test tube of gas

The splint relights in oxygen

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4.8.2.3 Test for carbon dioxide

Aqueous solution of calcium carbonate (lime water)

When it is bubbled through/shaken with limewater, the limewater turns milky/cloudy

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4.8.2.4 Test for chlorine

When damp litmus paper is put into chlorine gas, the paper is bleached and turns white

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