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Q.
Which one of the following metals, is extracted on smelting of its ore in blast furnace?
J & K CETJ & K CET 2007General Principles and Processes of Isolation of Elements
Solution:
The process of extraction of metal by heating roasted ore with coke in the presence of a flux is called smelting. It is done in blast furnace. Iron is extracted by this process.
$Fe _{2} O _{3}+3 C \xrightarrow{>1123\, K } 2 Fe +3 CO Fe _{2} O _{3}+3 CO \xrightarrow{1123\, K }2 Fe +3 CO _{2}$