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Railways R.R.C. (Delhi) Solved Paper Held on 1st Shift 23-11-2014

  • question_answer
    What is the first element on the Periodic Table?

    A) Hydrogen                      

    B) Oxygen

    C) Nitrogen            

    D) Carbon

    Correct Answer: A

    Solution :

    On the basis of Periodic Table, the first element is hydrogen.


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