Reduction of metal oxide by excess carbon at high temperature is a method for the commercial preparation of some metals. This method can be successfully applied in the case of:

BeO and

A l_{2} O_{3}

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ZnO and

F e_{2} O_{3}

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CaO and

C r_{2} O_{3}

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BaO and

U_{3} O_{8}

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Solution

The correct option is A ZnO and $F e_{2} O_{3}$
Reduction of metal oxide by excess carbon at high temperature is a method for the commercial preparation of some metals. It is called smelting.
Smelting is used for less electropositive metals such as Pb, Zn, Fe, Sn, Cu etc.
Thus this method can be used for the reduction of ZnO and $F e_{2} O_{3}$ .

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Similar questions

F e_{2} O_{3}

C r_{2} O_{3}

850^{\circ}

F e_{2} O_{3}, S n O_{2}, P b S, M g C l_{2}, H g S, Z n S, A l_{2} O_{3}, A g_{2} S, C u_{2} S

(\frac{Q + R}{P \times S})

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