A) \[Fe\]
B) \[Ag\]
C) \[Al\]
D) \[Cu\]
Correct Answer: D
Solution :
Copper metallurgy involves bessemerisation. In Bessemer convertor the impurities of ferric oxide forms slag with silica and copper oxide is reduced to give blister copper. \[FeO+Si{{O}_{2}}\xrightarrow[{}]{{}}\underset{slag}{\mathop{FeSi{{O}_{3}}}}\,\] \[C{{u}_{2}}S+2C{{u}_{2}}\text{O}\xrightarrow[{}]{{}}6Cu+S{{O}_{2}}\]
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