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  3. 10th Class
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10th Class Science Sample Paper Science Olympiad Model Test Paper-2

  • question_answer
    In periodic table, from left to right in a period, the acidic nature of the oxides of elements:

    A) Decreases

    B) Increases

    C) Does not change

    D) First increases then decreases

    E) None of these

    Correct Answer: B

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