BHU PMT BHU PMT Solved Paper-2003

  • question_answer
    Cryolite in aluminium extraction helps in:

    A)  lowering the melting point

    B)  increasing the melting point

    C)  decreasing the electrical conductivity

    D)  none of the above

    Correct Answer: A

    Solution :

                     Cryolite is added in extraction of aluminium because it increases the conductivity and lowers the melting point.


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