MCQ on Classification of Matter

1. The space between the constituent molecules of matter is called ……….

2. The forces of attraction between the molecules of the same substance are known as ……….

3. ……………… are those which exist between the molecules of two different substances.

4. The process which involves the change in state of matter from solid to liquid by heating is called ………….

5. The process by which some solid substances directly change into the vapor state without passing through the intermediate liquid state is called …………

6. The process involving the change of matter from liquid to solid on cooling is called ……….

7. Molecules of matter are made up of tinier particles called…………

8. If the molecules of a pure substance contain identical atom(s), then it is called an …….

9. The pure substance in which the molecules are made up of two or more different types of atoms is called a ……………

10. ………….. are elements which show the properties of both metals and nonmetals.

11. The burning of wood is a …………….reaction.

12. Which is the most abundant element in the universe.

13. Which metal is liquid at room temperature.

14. The electrons are ……………charged particles.

15. The protons are …………charged particles.

16. The ………………….are electrically neutral particles.