Which one of the following metals is extracted by thermal reduction process?

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Aluminium

Copper

Iron

Magnesium

answer is A.

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Detailed Solution

Aluminium and Magnesium are extracted by electrolysis process. And Iron is extracted by a carbon reduction process. But ,Copper is extracted by the thermal reduction process.
It is a group of processes based on the reduction of metal compounds by more active metals into corresponding metals and accompanied by the evolution of heat.

Therefore, option(A) is the correct answer.

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