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प्रश्न
Fill in the blank :
Air is a matter because it has ________ and _______ and it can be _________
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उत्तर
Air is a matter because it has weight, mass and space and it can be compressed.
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संबंधित प्रश्न
What do you observe when a gas jar which appears empty is inverted over a gas jar containing Bromine vapours? Name the phenomenon.
Write whether the following statement is true or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
All kinds of matter
- occupy space and have definite mass
- have mass and definite shape
- can change their states
- have definite volume
Give reason Liquids can flow easily
Write true or false for each statement. Rewrite the false statement correctly.
If the intermolecular space is more than the intermolecular force will be weaker.
Explain the following :
When an incense stick is lighted in the corner of a room, its fragrance spreads quickly in the entire room.
Give reasons for the following:
Sugar can be distinguished from talcum powder using water.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to space.
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.
