BCECE Engineering BCECE Engineering Solved Paper-2011

  • question_answer
    Heating of ore in absence of air below its melting point is called

    A)  leaching                             

    B)  roasting              

    C)         smelting             

    D)         calcination

    Correct Answer: D

    Solution :

    Calcination is the process in which the ore is heated below its melting point in absence of air. Generally, carbonate and hydroxide ores are calcined.


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