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प्रश्न
Give reason :
The odour of scent spreads in a room.
उत्तर
Scent fumes (molecules) being gases fill the spaces between air molecules and the molecules of air fill the spaces between scent molecules due to diffusion, fumes spread into a room.
OR
Due to the inter-mixing of scent molecules and air molecules, scent fumes spread into the room.
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संबंधित प्रश्न
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| Column A | Column B | ||
| A. | A molecule is composed of | i. | does not exist free in nature. |
| B. | Ice, water and water vapour | ii. | can vibrate only up to about `10^-10`m from their mean position. |
| C. | An atom | iii. | atoms. |
| D. | Gases | iv. | are the three states of water. |
| E. | The molecules of a solid | v. | occupy space |
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