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प्रश्न
What are the three states of matter ? Define each of them with two examples.
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उत्तर
The three states of matter are solids, liquids and gases :
- Solids - A solid has a definite shape and definite volume.
Example – wood, stone, iron, ice etc. - Liquid - A liquid has a definite volume but not definite shape.
Example - water, juice, milk, oil, etc. - Gases - A gas neither has definite shape nor a definite volume.
Example - air, hydrogen, oxygen, watervapour etc.
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संबंधित प्रश्न
Define of matter.
Define of intermolecular force of attraction.
What are molecules ?
What is the relation between intermolecular space and intermolecular force ?
Give reason for the following.
Gases can be compressed easily.
Give reason for the following.
We need to classify things.
Give reason:
The odour of scent spreads in a room.
Give reason:
When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass does not rise.
Write true or false for statement. Rewrite the false statement correctly.
If the intermolecular space is more than the intermolecular force will be weaker.
Write true or false for statement. Rewrite the false statement correctly.
The smallest part of an element capable of independent existence 4s called an atom.
