UPSC Chemistry Metals and Non-metals Question Bank Non - Metals

  • question_answer       Which among the following elements is abundant on the lunar surface and holds the potential to put an end to the energy crisis of the earth? [CDS]

    A) Helium-I         

    B)          Helium-II

    C) Helium-III   

    D) Helium-IV

    Correct Answer: C

    Solution :

    Not Available      

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