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प्रश्न
State three properties of molecules of a matter.
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उत्तर
- They are very small in size.
- They have spaces between them.
- They are in constant motion and they possess kinetic energy.
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संबंधित प्रश्न
The melting point of ice is 0°C.
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
How a liquid changes into its gaseous state? Explain?
Water cycle is an example of interconversion of states of water. Explain.
Differentiate between the following:
Liquids and gases
Name the phenomenon which cause the following change.
Conversion of water into steam.
Define matter
One kind of matter can be distinguished from another by its physical properties and chemical properties.
State what would you observe if
(a) sugar is added to pebbles take in a plastic beaker
(b) sand is added to glass balls in a beaker. What would you conclude from this imaginative demonstration?
Match the arrangement of atoms in the three states of matter in List I with the correct state in List II.
| List I | List II |
| 1. Arrangement of atoms is far apart | A: Solids |
| 2. Force of attraction between atoms is very strong | B: Liquids |
| 3. Movement of atoms is in any random direction | C: Gases |
| 4. Particles diffuse very easily | |
| 5. Particles show movement about their own position |
