2. Sample Papers
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  5. Occurence and Extraction of Metals

Railways General Science & Technology Occurence and Extraction of Metals Sample Paper Occurence and Extraction of Metals Sample Test Paper-18

  • question_answer
    The second most abundant element in the earth's crust is

    A)  Oxygen

    B)  silicon

    C)  Aluminium       

    D)  icon

    Correct Answer: A

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