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Question

Chemistry Question on General Principles and Processes of Isolation of Elements

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

A

Copper

B

Iron

C

Aluminium

D

Magnesium

Answer

Iron

Explanation

Solution

The less electropositive metals such as Fe,Zn,SnFe,\, Zn,\, Sn etc are extracted from their oxides by reduction with carbon or coal.
Fe2O3+3C2Fe+3COFe _{2} O _{3}+3 C \rightarrow 2 Fe +3 CO
Fe2O3+3CO2Fe iron+3CO2Fe _{2} O _{3}+3 CO \rightarrow \underset{\text { iron}}{2 Fe }+3 CO _{2}