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  5. Atoms and Molecules

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

  • question_answer
    Molar mass of \[{{C}_{2}}{{H}_{4}}\] is:

    A) \[26\,g\,mo{{l}^{-1}}\]            

    B) \[28\,g\,mo{{l}^{-1}}\]

    C) \[30\,g\ mo{{l}^{-1}}\]

    D)        \[32\,g\,mo{{l}^{-1}}\]

    E) None of these

    Correct Answer: B

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