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Question
Give two tests of the following:
Water vapour
Short/Brief Note
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Solution
Water vapour : These are colourless vapours and are neutral to litmus. These can be tested by first condensing on the walls (cooler parts) of the test tube and then by adding anhydrous copper sulphate to the collected liquid, if the white colour of copper sulphate changes to blue, then the gas is water vapour.
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