Question

Which type of change takes place in the following cases?

(1) Burning of a candle (2) Lightning of Bulb (3) Preparation of food by green plants (4) volcanic eruption (5) evaporation of petrol (6) burning of LPG.​

Answer 1

Answer:

1. burning of a candle is a a chemical change
2. lighting of bulb is also chemical change
3. preparation of food by Green plants is physical change
4. volcanic eruption is a physical change
5. evaporation of petrol is chemical change
6. burning of LPG is chemical change

Answer 2

Explanation:

1). chemical change

2) physical change

3) chemical change

4) chemical change

5) physical change

6) chemical change