Try to break a piece of chalk, a piece of charcoal and a piece of iron. In which of the above three substances would you find the force of attraction between the particles to be highest?
A
Piece of chalk
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B
Piece of charcoal
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C
Force of attrcation is same in all the substances
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D
Piece of iron
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Solution
The correct option is D Piece of iron The particles of matter have force acting between them. This force keeps the particles together. The strength of this force of attraction varies from one kind of matter to another. Here, a metal piece of iron doesn't break easily. So, iron has the highest force of attraction between its particles.