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प्रश्न
Fill in the following blank with suitable words :
The smell of perfume gradually spreads across a room due to .....................
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उत्तर
The smell of perfume gradually spreads across a room due to diffusion.
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संबंधित प्रश्न
Fill in the blank:
The process in which a solid directly changes into a gas is called ....................
Give reason:
A red ink drop added to small amount of water in a glass turns water red in some time.
Fill in the blank:
Liquids have a definite ............
Why liquids do not have a definite shape ?
Give reason of A gas fills up the space available to it.
The state of matter which has no definite shape or volume is called
What is meant by 'diffusion'? Give one example of diffusion in gases.
Give reasons for the following:
Water on freezing turns into ice.
Name the three states of matter.
Give the reason for the following
Particles of matter move more rapidly on the application of heat.
