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

 

Answer

Every liquid has a fixed boiling point.

Pure water has a boiling point of 100 degree celsius/373K.

Hence, to verify if the colourless liquid is pure water, we’ll boil it and observe its boiling point.

If the liquid starts boiling at a sharp 100 degree celsius/373K, then the colourless liquid will be pure water.

  1. Class 9
  2. Chapter 2 Class 9 - Is Matter Around Us Pure

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.