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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
    Calcination is

    A)  Heating the ore strongly in the absence of any blast of air

    B)  Heating the ore with limestone

    C)  Heating the ore with calcium

    D)  Heating the ore with carbon

    Correct Answer: A

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