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प्रश्न
Fill in the following blank with suitable words :
The smell of perfume gradually spreads across a room due to .....................
उत्तर
The smell of perfume gradually spreads across a room due to diffusion.
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संबंधित प्रश्न
Define the following terms.
Atom
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
Define the following term of Molecule .
Give reason of Why do liquids and gases flow but solids do not ?
Give reason of Liquids have definite volume but no difinite shape.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free surfaces.
State in which of the three states of matter:
The force of attraction between the particles is very weak.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Have no definite shape, volume or free surface | A: Solids only |
| 2. Are highly compressible and least rigid | B: Liquids only |
| 3. Have a definite volume, no definite shape and are slightly diffusable | C: Gases only |
| 4. Are not compressible and have no diffusability | D: Liquids and gases only |
| 5. Have mass and occupy space | E: Solids and gases only |
| F: Solids, liquids and gases |
Air is not compressible.
