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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
    Malachite, azurite, and chalcopyrite are ores of

    A)  Nickel  

    B)  chromium

    C)  Calcium           

    D)  copper

    Correct Answer: D

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