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

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

J & K CETJ & K CET 2008General Principles and Processes of Isolation of Elements

Solution:

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