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प्रश्न
Name the three states of matter.
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उत्तर
The three states of matter are solids, liquids, and gases.
Solids: A solid has a definite shape and definite volume.
Example: wood, stone, iron, ice, etc
Liquid: A liquid has a definite volume but no definite shape.
Example: water, juice, milk, oil, etc.
Gases: A gas neither has definite shape nor a definite volume.
Example: air, hydrogen, oxygen, water vapour, etc.
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संबंधित प्रश्न
Boiling takes place at all temperatures.
Fill in the blank
The molecular motion in liquid and gas is in ................. path.
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
Why liquids do not have definite shape?
Fill in the blank
Liquids have no definite ...........
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles move about very quickly.
Define matter
Name the three states of matter and define them.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Are highly rigid and have a definite shape | A: Solids and gases only |
| 2. Have no definite shape | B: Solids only |
| 3. Have definite volume but no definite shape | C: Liquids and gases only |
| 4. Are highly compressible and least rigid | D: Gases only |
| 5. Have no definite volume | E: Solid, liquids and gases |
| 6. Have no definite shape and volume |
F: liquids only |
| 7. Occupy space | G: Solids and liquids only |
| 8. Are not compressible | |
| 9. Are slightly compressible | |
| 10. Have mass |
