CBSE Class 8 Science Nature of Matter Elements, Compounds, and Mixtures (Class 8 NCERT New) Quiz 1

1. These can only be separated by chemical means.

A element B compound C mixture D stuff

2. These contain only one kind of atom.

A element B compound C mixture D water

3. The air is a _________.

A element B mixture C compound D energy

4. Pure water is a ___________.

A element B mixture C compound

5. The things in a mixture always retain their........

A smell properties B physical and chemical properties C shape D color

6. Elements can be broken down into simpler substances.

A false B true C sometimes

7. Compounds contain a _____ set of elements.

A fixed B random C sweet D inaccurate

8. These must be separated chemically.

A elements B compounds C mixtures D homogeneous mixtures

9. These are mixtures that are the same throughout.

A homogeneous mixtures B heterogeneous mixtures C mixed mixtures

10. These are mixtures that are not the same throughout.

A homogeneous mixtures B heterogeneous mixtures C solutions D water