PDF chapter test TRY NOW
Practice Questions
| 1. |
Atoms
Difficulty: easy |
1
|
| 2. |
Formulae of chemical compounds
Difficulty: easy |
1
|
| 3. |
Metals, non-metals and metalloids
Difficulty: medium |
1
|
| 4. |
Atomicity of molecules of elements and compounds
Difficulty: hard |
2
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| 5. |
Effects of heat in the matter
Difficulty: hard |
3
|
Teacher manual
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