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Class 11 Chemistry Practice Test: Basic Concepts of Chemistry - Nature of Matter
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Matter is composed of particles. Differences in solids, liquids, and gases can be explained by the proximity and bonding of particles. When solids, liquids, and gases change state, distances between particles change as the particles absorb or release energy. There is nothing between the particles but space (no air).

Class 11 Chemistry Practice Test: Basic Concepts of Chemistry - Nature of Matter
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10 Questions

1. Water is a/an _______
2. When two or more atoms of different elements combine with each other in a fixed ratio, the molecule of a ____ is obtained.
3. Which of the following is not a pure substance?
4. Point out an example of a compound.
5. Point out an example of a compound.
6. Compounds cannot be separated by chemical methods.
7. Which of the following is not a pure substance?
8. When two or more atoms of different elements combine with each other in a fixed ratio, the molecule of a ____ is obtained.
9. Which among the three states of matter has a definite shape and size?
10. Matter can be divided into two types i.e. mixture and pure substance.

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