MCQ
Do you think we break molecules when we turn chalk into chalk powder?
  • A
    Yes, chalk powder is formed by breaking chalk into small pieces.
  • B
    Yes, because formation of chalk powder is a chemical change.
  • No because no new substance is formed molecules of chalk and chalk powder are same.
  • D
    Yes, because chalk is bigger in size than particles of chalk powder.

Answer

Correct option: C.
No because no new substance is formed molecules of chalk and chalk powder are same.

Chalk powder has same molecules as chalk and no new product is formed on breaking chalk into chalk powder.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free