A) Zn
B) Hg
C) Fe
D) Cu
Correct Answer: D
Solution :
Gun metal \[(Cu=88%,\text{ }Sn=10%,\text{ }Zn=2%)\] Monel metal\[(Cu=28%,\text{ }Ni=70%,\text{ }Fe=2%)\] Brass\[(Cu=70%,\text{ }Zn=30%)\] Hence, Cu is present in all of three.You need to login to perform this action.
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