What chemical process is used for obtaining a metal from oxide?

Dear Student

To obtain metals from its oxides for metals of medium reactivity one can use carbon as reducing agent and the chemical process is called reduction. Also; displacement reaction is used in which highly reactive metal acts as reducing agent. !But for the metals of high reactivity the method of electrolytic reduction in used.
e.g., 3MnO2(s) + 4Al(s) → 3Mn(l) + 2Al2O3(s) + heat

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