Question

True/False
1. When a candle bums, both physical and chemical changes take place. [NCERT Exemplar]
2. Anaerobic bacteria digest animal wastes and
3. Ships suffer a lot of damage though they are painted.
4. Stretching of rubber band is not a physical change. [NCERT Exemplar]
5. Cooking of rice is a physical change.
6. Within our bodies, food is digested due to chemical reaction.
7. A blue deposit is formed on an iron nail when dipped in copper sulphate solution.
8. Both moisture and air are essential for rusting.
9. Formation of clouds is a physical change.
10. The colour of iron sulphate solution is green.

Answer 1

Answer:

1 True

2True

3 False

4 False

5 False

6 True

7 True

8 True

9 True

10 True