Theory
Practice Questions
| 1. |
Atom, molecule and element
Difficulty: easy |
1
|
| 2. |
Dalton's atomic theory
Difficulty: easy |
1
|
| 3. |
Atomicity
Difficulty: easy |
2
|
| 4. |
Law of conservation of mass
Difficulty: medium |
3
|
| 5. |
Mass number
Difficulty: medium |
2
|
| 6. |
Application of law of constant proportions
Difficulty: medium |
4
|
| 7. |
Matching atoms and symbols
Difficulty: medium |
3
|
| 8. |
Chemical formula
Difficulty: medium |
2
|
| 9. |
Cations and anions
Difficulty: hard |
3
|
| 10. |
Formula unit mass
Difficulty: hard |
2
|