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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2008

  • question_answer
    In the smelting of a metal ore, a substance is added, which forms a fusible product on mixing with impurities. The name of this substance is

    A)  slag             

    B)  mud

    C)  gangue          

    D)  flux

    Correct Answer: D

    Solution :

     Flux changes to slag on reaction with impurities. Due to lighter the slag collects in the form of upper surface and removes very easily.


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