A) Iron
B) Copper
C) Aluminium
D) Silver
Correct Answer: B
Solution :
Extraction of copper involves bessemerisation. In the bessemer converter, copper pyrites is oxidised to \[FeO\] and\[C{{u}_{2}}O\]. \[FeO\] is slagged off. \[C{{u}_{2}}O\] formed, reacts with \[C{{u}_{2}}S\] 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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