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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
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
State the general properties of a solid.
Fill in the blank
Any matter which has a definite ................. but no definite shape is called a ...............
Fill in the blank
......... can flow.
The molecules move only within the boundary of
All kinds of matter
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?
Complete the statement given below by selecting the correct word.
____ is an example of a crystalline substance.
Fill in the blank with the correct word Given below.
Brownian movement is maximum 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 |
