A) Mg
B) Pb
C) Cu
D) Fe
Correct Answer: A
Solution :
Magnesium is more electropositive than zinc, hence it can reduce \[\text{Z}{{\text{n}}^{\text{2+}}}\text{.}\] (Magnesium is placed above zinc in electrochemical series) \[\text{Mg}\,\text{+}\,ZnO\xrightarrow{{}}MgO+Zn\]
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