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Why students can read blackboard written by chalks? - Chemistry

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Why students can read blackboard written by chalks?

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Solution

When we write on a blackboard using chalk, the chalk particles get adsorbed on the surface of the blackboard. Hence, students can read blackboard written by chalks.

Concept: Adsorption
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APPEARS IN

Balbharati Chemistry 11th Standard Maharashtra State Board
Chapter 11 Adsorption and Colloids
Exercises | Q 3. (B) | Page 173
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