A) Iron
B) Sodium
C) Potassium
D) Magnesium
Correct Answer: A
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. \[F{{e}_{2}}{{O}_{3}}+3C\xrightarrow[{}]{>1123\,K}2Fe+3CO\] \[F{{e}_{2}}{{O}_{3}}+3CO\xrightarrow[{}]{1123\,K}2Fe+3C{{O}_{2}}\]
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