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  3. 10th Class
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10th Class Science Sample Paper Science Olympiad Model Test Paper-4

  • question_answer
    A student adds a few drops of universal indicator to a dilute solution of sodium bicarbonate taken in a test tube. Which of the following colours would he observe?

    A) Dark red

    B) Red

    C) Orange

    D) Orange yellow

    E) None of these

    Correct Answer: E

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