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  3. 9th Class
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9th Class Science Sample Paper Science Olympiad Model Test Paper-17

  • question_answer
    Give the name of elements present in the compound of baking soda.

    A) Sodium, hydrogen, carbon, oxygen

    B) Sodium, hydrogen, oxygen

    C) Bromine, calcium, oxygen, carbon

    D) Potassium, sulphur, oxygen

    E) None of these

    Correct Answer: A

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