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Railways RRB (Assistant Loco Pilot & Technician) Solved Paper-2 (2014)

  • question_answer
    The rate of diffusion of hydrogen is about

    A)  one half that of helium  

    B)  1.4 times that of helium

    C)  twice that of helium    

    D)  four times that of helium

    Correct Answer: B

    Solution :

    Not available


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