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JEE Main & Advanced Chemistry Electrochemistry / विद्युत् रसायन Question Bank Critical Thinking Electrochemistry

  • question_answer
    The mass of carbon anode consumed (giving only carbondioxide) in the production of 270kg of aluminium metal from bauxite by the Hall process is      [CBSE PMT 2005]

    A)                 180kg   

    B)                 270kg

    C)                 540kg   

    D)                 90kg

    Correct Answer: D

    Solution :

                    \[\frac{{{\omega }_{1}}}{{{E}_{1}}}=\frac{{{\omega }_{2}}}{{{E}_{2}}}\] ; \[\frac{{{\omega }_{1}}}{3}=\frac{270}{93}\]; \[{{\omega }_{1}}=90\,kg\].


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