Theory
Practice Questions
1. 
Atoms and molecules
Difficulty: easy 
2

2. 
Atoms and symbols II
Difficulty: easy 
4

3. 
Atomic theory
Difficulty: easy 
4

4. 
Atomicity of molecules
Difficulty: easy 
4

5. 
Atoms and symbols II
Difficulty: easy 
4

6. 
Formulae of chemical compounds
Difficulty: medium 
4

7. 
Find the number of atoms I
Difficulty: medium 
3

8. 
Atomicity of molecules
Difficulty: medium 
4

9. 
Find the atomic mass
Difficulty: medium 
3

10. 
Match the followings
Difficulty: medium 
3

11. 
State of metals and nonmetals
Difficulty: medium 
3

12. 
Symbols of metals and nonmetals
Difficulty: medium 
3

13. 
Find the analogy
Difficulty: medium 
3

14. 
Match the followings
Difficulty: medium 
7

15. 
Compounds and its constituent atoms
Difficulty: hard 
3

16. 
Atoms and elements
Difficulty: hard 
3

17. 
Find the number of atoms II
Difficulty: hard 
4

18. 
Atomicity
Difficulty: hard 
4
