Question

Give the reaction involved during extraction of zinc from its ore by

1. roasting of zinc ore
2. calcination of zinc ore

Answer 1

`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")`