Question

explain why its difficult to break a piece of coal as compared to a piece of chalk​

Answer 1

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.

Explanation:

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Answer 2

Answer:

The molecular force of coal is much, much, stronger than a chalk

Explanation:

Yes, they both are solid. But the molecular force present in coal is stronger . The chalk is porous too so it is easy to break and can be crushed. The attraction of atoms in coal and chalk varies.

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