Question

What is the reason due to which the chalk particles stay on the board?

Answer 1

Answer:

this is due to cohesive forces and adhesive forces/

Explanation:

The forces of attraction between the molecules of the same substance are called cohesive forces.The forces between the molecules of two differnet substances are called adhesive forces.In this case the adhesive forces between the chalk and the board are much stronger than the cohesive forces between the chalk molecules and that is how chalk stays on the board.

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Answer 2

Answer:

I

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