2. Sample Papers
  3. 9th Class
  4. Science

9th Class Science Sample Paper Science Olympiad Model Test Paper-6

  • question_answer
    An element has an electronic configuration of 2, 8, and 5. Its valency is:

    A) 3

    B) 5

    C) 8

    D) 15

    E) None of these

    Correct Answer: A

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