Question

Explain the various ways of purifying water and removing soluble and insoluble impurities.

Answer 1

The different methods to purify impure water are:

• Filtration: This method involves passing the impure water through a filter paper to remove the insoluble impurities.
• Sedimentation and Decantation: In sedimentation, water is left undisturbed in a container such that insoluble impurities like mud settle down. This is further transferred into a clean container through decantation process.
• Distillation: This method involves converting impure water to steam by heating due to which impurities are left behind in a container. The steam is then passed on to a condenser where it cools and changes to pure water.