Why can a piece of chalk be broken easily while a coal piece cannot be broken easily?
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Why can a piece of chalk be broken easily while a coal piece cannot be broken easily?
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Answer:
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.
Answer:
because the bondage of molecules is more in coal