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J & K CET Medical J & K - CET Medical Solved Paper-2004

  • question_answer
    Out of the following metals that cannot be obtained by electrolysis of the aqueous solution of their salts are:

    A)  Ag                                         

    B)  Cr

    C)  Cu                                         

    D)  Mg

    Correct Answer: D

    Solution :

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


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