A) pure copper
B) copper ore
C) 2% impure copper
D) copper alloy
Correct Answer: C
Solution :
Blister copper is \[98%\]\[Cu\] with \[2%\] impurities of \[S,\]\[As,\] \[Fe,\] \[Co,\] \[Ni,\] \[Zn,\] \[Pb\] etc.
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