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प्रश्न
Which of the following are matter?
Chair, air, love, smell, hate, almonds, thought, cold, lemon water, smell of perfume.
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उत्तर
Chair, air, smell, almonds, lemon water and smell of perfume.
Notes
Note: The sense of smell is not matter. However, the smell or odour of a substance is classified as matter. The smell of any substance (say, perfume) can be classified as matter. This is because, perfume is in liquid state inside the bottle. It comes out in the form of tiny droplets. These droplets of perfume are matter and spread out in the atmosphere to create a sense of smell. This smell can be detected by our olfactory system.
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संबंधित प्रश्न
What is volume ?
State the general properties of a solid.
What is the relation between intermolecular space and intermolecular force ?
Give reason Gases can be compressed easily .
Name the three states of matter and define them.
Fill in the following blank with suitable words :
The smell of perfume gradually spreads across a room due to .....................
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to compressibility.
Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in the following case.
During soldification, the inter-particle space __________ gently.
Water obtained from tube wells is usually ______ water.
Match the following.
| Property | Example |
| Breaks easily (Brittle) | Metal pan |
| Bends readily | Rubber band |
| Can be stretched easily | Cotton wool |
| Gets compressed easily | Mud pot |
| Gets heated readily | Plastic wire |
