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  3. 6th Class
  4. Science

6th Class Science Sample Paper Science Olympiad Model Test Paper-17

  • question_answer
    Which one of the following is an example of the change which occurs on heating and cannot be reversed?

    A) Expansion of an iron rod

    B) Melting of wax

    C) Baking of chapatti

    D) Formation of ice from water

    E) None of these

    Correct Answer: C

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