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Question

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:

A
BeO and Al2O3
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B
ZnO and Fe2O3
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C
CaO and Cr2O3
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D
BaO and U3O8
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Solution

The correct option is A ZnO and Fe2O3
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 Fe2O3.

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