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प्रश्न
Give the reaction involved during extraction of zinc from its ore by
- roasting of zinc ore
- calcination of zinc ore
उत्तर
`2"ZnS"("s") + 3"O"_2("g") overset("Heat")(->) 2"ZnO"("s") + 2"SO"_2("g")`
`"ZnCO"_3("s") overset("Heat")(->) "ZnO"("s") + "CO"_2("g")`
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