2. Sample Papers
  3. 9th Class
  4. Science

9th Class Science Sample Paper Science Olympiad Model Test Paper-6

  • question_answer
    The ratio of H : O by mass in water is:

    A) 1 : 8

    B) 8 : 1

    C) 1 : 2

    D) 2 : 1

    E) None of these

    Correct Answer: A

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