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प्रश्न
Why can a piece of chalk be broken easily into smaller pieces while a coal piece cannot be broken easily?
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उत्तर
The particles of matter have force acting between them. This force keeps the particles together. The strength of this force of attraction is lesser in chalk, hence it could be broken easily into smaller pieces.
But the strength of inter-molecular force of attraction is very strong in coal, therefore it is not possible to break them into small pieces.
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संबंधित प्रश्न
Give reasons:
Solids cannot be compressed.
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
All kinds of matter
- occupy space and have definite mass
- have mass and definite shape
- can change their states
- have definite volume
A substance which can change its state
- wood
- oxygen
- paper
- cloth
A solid is a state of matter that has
- no definite shape.
- large intermolecuiar space.
- high intermolecuiar force of attraction.
- no definite volume.
Give reason of A gas fills up the space available to it.
Explain the following :
When an incense stick is lighted in the corner of a room, its fragrance spreads quickly in the entire room.
State in which of the three states of matter:
The force of attraction between the particles is very weak.
With reference to the liquid state of matter – answer the following
How does the stored energy, have an effect on inter-particles space.
Complete the statement by filling the blank with the correct word given below.
When inter-particle space increases, the inter-particle attractive force _______________.
