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प्रश्न
Give one difference between atoms and molecules.
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उत्तर
Atoms may or may not have independent existance. While molecules have independent existence.
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संबंधित प्रश्न
Give reasons
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar
To identify materials of common use
Procedure – Just move around in your house – in the drawing room, sitting room, bedroom, kitchen, bathroom etc. Identify the things and All in the blanks in the table given below
| No. | Place | Name of the thing | Material used for making the thing |
| 1 | Study room | ||
| 2 | Drawing room | ||
| 3 | Kitchen | ||
| 4 | bathroom | ||
| 5 | Any other place |
Matter in any state is composed of particles. Compare the three states of matter i,e. solids, liquids, and gases with reference to:
(a) intermolecular space
(b) the intermolecular force of attraction
(c) movement of particles
State the property of the following substance.
Sodium nitrate is soluble in water, but calcium carbonate is not.
See the given pictures and write down the state of each object. (Solid, Liquid, Gas)
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 |
 |
 |
| _____ | ______ | ______ | ______ | ______ |
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 |
 |
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| ______ | _______ | ______ | ______ | ______ |
Complete the Analogy:
Solids: incompressible:: Gas: ______.
Intermolecular forces of attractions are maximum in ______.
The feather and paper cup can float on the water.
Complete the Analogy.
Bucket: Plastic:: Table: ______.
Define the term ‘Diffusion’.
