2. Sample Papers
  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main Sample Paper-22

  • question_answer
    Which of the following step can not be used to the extraction of Blister Cu from \[CuFe{{S}_{2}}\]

    A)  Smelting by carbon

    B)  Roasting

    C)  Auto/Self reduction

    D)  Poling

    Correct Answer: A

    Solution :

    Cu is extracted by self reduction not by carbon reduction.


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