2. Questions Bank
  3. 10th Class
  4. Science
  5. Periodic Classification of Elements

10th Class Science Periodic Classification of Elements Question Bank Periodic Classification of Elements

  • question_answer
    "Law of octaves" was given by:

    A) Mendeleev                    

    B) Newland

    C) Dobereiner                    

    D) Moseley

    E) None of these

    Correct Answer: B

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