why roasting is used
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Explanation:
it.
used.
because.
to.
bajana
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Answer:Hi....
Explanation:Roasting is the process in which sulphide ores of the metals are converted into oxides by heating them in the presence of excess air. For example, zinc sulphide is converted into zinc oxide by roasting.
2ZnS (s) + 3O2 (g) ----(heating)----> 2ZnO (s) + 2SO2 (g)
Hope it helps...
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