Chemistry - Metallurgy Question with Solution | TestHub

$\begin{array}{c}{\text{Cu}}_2\text{S}-\text{Copper glance}\\ {\text{Ag}}_2\text{S}-\text{Silver glance}\\ \text{PbS}-\text{galena}\end{array}$

Common ore for : 

Al : Al₂O₃

Mg : MgCl₂

Sn : SnO₂