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

9th Class Science Sample Paper Science Olympiad Model Test Paper-2

  • question_answer
    What is the molecular mass \[{{C}_{2}}{{H}_{6}}\]?

    A) 12 u     

    B) 30 u

    C) 36 u

    D) 56 u

    E) None of these

    Correct Answer: B

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