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Give an example of a sulphide ore which is reduced to metal by heating along i.e., by roasting. |
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Answer» Solution :CINNABAR (HgS) on roasting is first changed to MERCURIC oxide which on further HEATING is reduced to mercury. `2HgS(s)+3O_2(g) to^(Heat) 2HgO(s)+2SO_2(g)` `2HgO(s) to^(Heat) 2Hg(l)+O_2(g)` |
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