BCECE Engineering BCECE Engineering Solved Paper-2006

  • question_answer
    Which will reduce zinc oxide to zinc?

    A)  Mg                                       

    B)  Pb

    C)  Cu                         

    D)         Fe

    Correct Answer: A

    Solution :

    Magnesium is more electropositive than zinc, hence it can reduce \[Z{{n}^{2+}}\](magnesium is placed above zinc in electrochemical series). \[Mg+ZnO\xrightarrow{{}}MgO+Zn\]


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