Theory
Practice Questions
| 1. |
Indicators of chemical changes
Difficulty: easy |
2
|
| 2. |
Law of conservation of mass
Difficulty: easy |
2
|
| 3. |
Exothermic and endothermic changes: select the correct option
Difficulty: easy |
4
|
| 4. |
Permanent changes
Difficulty: easy |
2
|
| 5. |
Transition of different states of matter
Difficulty: easy |
2
|
| 6. |
Balancing a chemical equation
Difficulty: medium |
1
|
| 7. |
Characteristics of combustion
Difficulty: medium |
2
|
| 8. |
Reactions involving chemical change
Difficulty: medium |
6
|
| 9. |
Sources of acids and neutralisation
Difficulty: medium |
3
|
| 10. |
Classification of hydrocarbons
Difficulty: medium |
3
|