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9th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    To form water, Hydrogen and oxygen combine in the ratio of 1:8 by mass. Find the mass of oxygen required to react completely with 3 g of hydrogen.

    A) 4 g

    B) 8 g

    C) 16 g

    D) 24 g

    E) . None of these

    Correct Answer: D

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