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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.
संबंधित प्रश्न
Fill in the blank:
The change of water vapour into water is called ......................
Fill in the blank:
Water is a matter because it has mas and occupies....................
Fill in the blank:
Any matter which has a definite.................... but no definite shape is called a...............
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
What is the relation between intermolecular space and intermolecular force ?
Give reason of The odour of scent spreads in a room.
Give reason of We can walk through air.
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
State in which of the three states of matter:
The movement of the particles is neither about their own positions nor in any random direction.
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 |
