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9th Class Science Structure of the Atom Question Bank Structure of the Atom

  • question_answer
    Which of the following gas when taken in the discharge tube produces maximum specific charge of positive rays?

    A)  Oxygen           

    B)         Nitrogen

    C)  Helium            

    D)         Hydrogen  

    Correct Answer: D

    Solution :

     A positively charged particle obtained from hydrogen is the lightest compared to the positively charged particle obtained from any of the other elements. Hence, e/m is maximum for a positive ray when hydrogen gas is taken in the discharge tube.


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