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 (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo