Question

6 How would you confirm that a colourless liquid
given to you is pure water?​

Answer 1

Answer:

By testing its boiling point.. If its 100°C, then we can say that its pure water.

Answer 2

If we allow the given liquid to evaporate by heating it as in a clean china dish so:

any residue remaining in the china dish will indicate that water is not pure but contains impurities.

no residue in china dish will indicate that water is pure.