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10th Class Science Metals and Non-metals / धातु और अधातु Question Bank Metals and Non-Metals

  • question_answer
    Aluminium is extracted by

    A)  heating sodium aluminium silicate to a high temperature

    B)  treating cryolite with sodium hydroxide solution under pressure

    C)  heating aluminium oxide with coke in a furnace

    D)  the electrolysis of molten aluminium oxide in fused cryolite  

    Correct Answer: D

    Solution :

    Not Available


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