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Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2005

  • question_answer
    In the Hoopes process, for refining of aluminium, the fused materials form three different layers and they remain separated during electrolysis also, this is because

    A)  the upper layer is kept attracted by the cathode and the lower layer is kept attracted by the anode

    B)  There is special arrangement in the cell to keep the layers separate

    C)  the three layers have different densities

    D)  The three layers are maintained at different temperatures

    Correct Answer: C

    Solution :

    In Hope's process the cell contains three used layers which differs in specific gravity. The bottom layer contain impure \[Al\] which act as anode middle layer contain electrolyte. The top layer contain pure Al which act as cathode.


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