2. Sample Papers
  3. 8th Class
  4. Science

8th Class Science Sample Paper Science Olympiad Model Test Paper-16

  • question_answer
    ________ are compounds used in refrigerators, air conditioners and aerosols.

    A) Chlorofluorocarbons

    B) Lead

    C) Nitrogen dioxide

    D) All of these

    E) None of these

    Correct Answer: A

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