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प्रश्न
Give reasons for the following:
A bottle of perfume on opening evolves an odour which can be sensed over a long distance.
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उत्तर
A bottle of perfume on opening evolves an odour because gases diffuse very easily and odour spreads over a large distance.
संबंधित प्रश्न
Give reasons for the following observation:
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.
All kinds of matter
- occupy space and have definite mass
- have mass and definite shape
- can change their states
- have definite volume
If an object is taken to the moon from the earth what will be its mass ?
Why liquids do not have a definite shape ?
How will you prove by an experiment that solids occupy space ?
Give reason of A gas fills up the space available to it.
There are large intermolecular gaps in
Which of the following statement is incorrect?
Among the following ______ is not a mixture.
The Cow and Birds are nonliving things.
