A) Iron
B) Copper
C) Aluminium
D) Silver
Correct Answer: B
Solution :
Extraction of copper involves bessemerisadon. In the bessemer converter, copper pyrites is oxidised to \[\text{FeO}\]and \[\text{C}{{\text{u}}_{\text{2}}}\text{O}\text{.FeO}\]is slagged off. \[\text{C}{{\text{u}}_{\text{2}}}\text{O}\]formed, reacts with \[\text{C}{{\text{u}}_{2}}S\] left unoxidised to give Cu. \[2C{{u}_{2}}S+3{{O}_{2}}\xrightarrow{{}}2C{{u}_{2}}O+2S{{O}_{2}}\uparrow \] \[2C{{u}_{2}}O+C{{u}_{2}}S\xrightarrow{{}}6Cu+S{{O}_{2}}\uparrow \]
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