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  4. General Science & Technology
  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
    During smelting, an additional substance is added which combines with impurities to form a fusible product. It is known as

    A)  Slag                

    B)  mud

    C)  Gangue

    D)  flux

    Correct Answer: A

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