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प्रश्न
Name the phenomenon which cause the following change.
Disappearance of camphor.
उत्तर
Disappearance of camphor is sublimation.
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संबंधित प्रश्न
State three properties of molecules of a matter.
What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
Fill in the blank
A solid is ............ rigid.
Classify the following into solids, liquids, and gases. Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Write whether the following statement is true or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
For the following statement, say whether it describes a solid, a liquid, or a gas.
Particles are far apart and move in all directions.
Give two examples for of the following
Substances which do not change their states.
Multiple choice question.
There are large intermolecular gaps in
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 |
Gas like the state of Matter that exists at extremely cold temperatures used in the field of cryogenics.
