Question

How will show the presence of water vapor in the air?​

Answer 1

Answer:

The presence of water vapour in air can be demonstrated by the following experiment: We take a steel tumbler and put some well crushed ice in it. ... When these water vapour come in contact with the cold, outside surface of steel tumbler, they condense to form tiny droplets of water.

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Answer 2

By using cobalt chloride paper which changes its color .

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