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Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-7

  • question_answer
    Which one of the following noble gases is not found in the atmosphere?

    A)  Argon             

    B)       Krypton                       

    C)       Radon                         

    D)       Xenon             

    Correct Answer: C

    Solution :

    Radon (Rn) is not found in the atmosphere.


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