2. Questions Bank
  3. 9th Class
  4. Science
  5. Atoms and Molecules

9th Class Science Atoms and Molecules Question Bank Atoms and Molecules

  • question_answer
    The ratio of C : O by mass in \[C{{O}_{2}}\]is:

    A) 8 : 3                             

    B) 3 : 8

    C) 1 : 16   

    D)        16 : 1

    E) None of these

    Correct Answer: B

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