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प्रश्न
Differentiate between the following.
Atoms and Molecules .
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उत्तर
Atoms and Molecules
|
Atoms |
Molecules |
| 1. It is the smallest part of an element. | 1. It is the smallest part of a compound. |
| 2. It does not have independent existence | 2. It has an independent existence. |
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When a small stone is gently dipped into a glass filled with water.
State the correct term from A, B, C, D, E or F in List II which represents the – change of state of matter or its relevant property from List I
| List I | List II |
| 1. Solid 'X' to a liquid 'Y' | A: Liquefaction |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Solidification |
| 5. The temperature at which 'Y' changes to 'Z' | E: Melting Point |
| F: Boiling point |
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