Question

Write true (T) or false (F).
1. Breaking of a glass plate is an example of a physical change.
2. Evaporation of water is a physical change which is man-made and undesirable.
3. Freezing is a process in which a substance changes from the liquid state to the
solid state on cooling
4. Naphthalene sublimes at room temperature.
5. A chemical change is permanent and reversible.
6. Baking a chapatti is a chemical change.
7. Boiling of water is a physical change in which energy is released in the form
of heat
8. Combustion is a chemical change that involves release of energy.​

Answer 1

Answer:

1.True

2.False

3.True

4.True

5.False

6.True

7.True

8.True

Answer 2

Answer:

1) true

2)false

3)true

4)true

5)false

6)true

7)true

8)true