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Which of the following alloys of copper contains nickel ?

$\begin {array} {1 1} (A)\;\text{German silver} & \quad (B)\;\text{Gun metal } \\ (C)\;\text{Brass} & \quad (D)\;\text{Bronze} \end {array}$

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Answer : German silver
German silver contains $\text{Cu}$, $\text{Zn}$ and $\text{Ni}$
Gun metal contains $\text{Cu}$, $\text{Sn}$ and $\text{Zn}$
Brass contains $\text{Cu}$ and $\text{Zn}$
Bronze contains $\text{Cu}$, $\text{Zn}$ and $\text{Sn}$
answered Jul 31, 2014 by thanvigandhi_1
 

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