Question

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

Answer 1

If the boiling point and freezing point of the given liquid comes out to be 100℃ or 373K and 0℃ or 273K respectively under 1 atm pressure, it confirms that the given liquid is pure water.

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Answer 2

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the boiling point and freezing point of the given liquid comes out to be 100℃ or 373K and 0℃ or 273K respectively under 1 atm pressure, it confirms that the given liquid is pure water.