Question

How would you confirm that a colourless liquid given to youis pure wate?

Answer 1

1) The easiest way to know whether a given colourless liquid is pure water or not is to determine its boiling point. Boiling point of pure water is 100⁰ C. Hence, if the given liquid boils at 100⁰ C, it is pure water.

2) Similarly, the freezing point of pure water is fixed (0⁰ C). Thus, if the given colourless liquid freezes at 0⁰ C, it is pure water.