A) Gun metal :\[Cu+Zn+Sn\]
B) Duralumin : \[Al+Cu+Mg+Ag\]
C) German silver : \[Cu+Zn+C\]
D) Solder : \[Pb+Al\]
Correct Answer: A
Solution :
Gun metal contains Cu (88%), Zn (2%), Sn(10%), Pb (0.5%)
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