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The major components of German Silver are:

Match List-$I$ with List-$II$.
List-$I$List-$II$
$A$. Bronze$I$. $Cu, Ni$
$B$. Brass$II$. $Fe, Cr, Ni, C$
$C$. $UK$ silver coin$III$. $Cu, Zn$
$D$. Stainless Steel$IV$. $Cu, Sn$
Choose the correct answer from the options given below:

In the electrolysis of $Al_2O_3$ by the Hall-Heroult process,which of the following statements is correct?

Flux is used to remove..........

What is the appropriate process for the extraction of lead from low-grade ore (impurity level is high)?

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