Question

4. How would you obtain clear water from a sample of muddy water?
5. (a) Why the burning of paper is an irreversible change?​

Answer 1

Answer:

ans1) We can obtain clear water from the process of filteration.

ans2) The burning of paper is an irreversible change. During burning of paper, the paper burns to produce ash and smoke. This ash and smoke cannot be converted back to the original paper so, its a change which cannot be reversed. Hence, its an irreversible chang

Answer 2

Answer:

4. You can obtain clear water from a sample of muddy water is by using filter      paper.

5.Burning of paper is a chemical change ,thus it is irreversible.