CBSE Class 9 Science Question 6 of 18

Is Matter Around Us Pure — Question 6

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Question 6

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

Answer

We can confirm if a colourless liquid is pure water by boiling it. If it boils at 100°C, then its pure. However, if there is an increase or decrease in the boiling point, then we can say that impurities are added to water.