Particles of matter attract each other


 
 
Concept Explanation
 

Particles of matter attract each other

   The particles of matter attract each other

The particles of matter are held together by force acting between them. This force is called ‘intermolecular force of attraction’. The strength of intermolecular force of attraction differs from matter to matter. For example, take a chalk, an iron nail and a brick. You will observe that the chalk stick gets broken to pieces easily, piece of brick breaks but not so easily, but most difficult is to break the iron nail. We can conclude that, particles of iron are held together by the strongest force followed by the piece of brick, whereas the particles of chalk have the weakest force of attraction.

Sample Questions
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Question : 1

Which type of matter has a smallest distance between its particles?

Right Option : A
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Question : 2

Which of the following are correct :

(a) The particles of matter are held together by force acting between them,which is called intermolecular force of attraction.

(b) The particles of matter are held together by force acting between them,which is called ionic force of attraction’.

(c) The particles of a matter always repel each other.

Right Option : A
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Question : 3

The chalk stick gets broken to pieces easily, piece of brick breaks but not so easily, but most difficult is to break the iron nail.Why it happens ?

Right Option : C
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