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  3. J & K CET Engineering

J & K CET Engineering J and K - CET Engineering Solved Paper-2004

  • question_answer
    Out of the following metals that cannot be obtained by electrolysis of the aqueous solution of its salts is

    A)  Ag           

    B)  Cr

    C)  Cu           

    D)  Mg

    Correct Answer: D

    Solution :

     Magnesium \[(Mg)\] cannot be obtained by the electrolysis of its aqueous salt solution because when it is liberated at cathode, at once reacts with \[{{\text{H}}_{\text{2}}}\text{O}\]to give metal hydroxide and hydrogen.


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