Question

Which of the following has maximum purity

• A. River water
• B. Distilled water
• C. Rain water
• D. none

Answer 1

Answer: (B)

$\begin{array}{c}\text{Distilled water is water that has been boiled}\\ \text{into vapour and condensed back into liquid in a}\\ \text{seperate container. Impurities in the original}\\ \text{water that do not boil below or near the}\\ \text{boiling point of water remain in the original}\\ \text{container.}\\ \text{So, Distilled water has maximum purity.}\\ \text{(B) Distilled water.}\end{array}$