2. Sample Papers
  3. 10th Class
  4. Science

10th Class Science Sample Paper Science Olympiad Model Test Paper-19

  • question_answer
    "Law of octaves" was given by:

    A) Mendeleev

    B) Newland

    C)  Dobereiner

    D)  Moselly

    E)  None of these

    Correct Answer: B

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