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प्रश्न
What happens when
- ZnCO3 is heated in the absence of oxygen?
- a mixture of Cu2O and Cu2S is heated?
थोडक्यात उत्तर
उत्तर
- When ZnCO3 is heated in the absence of oxygen, zinc oxide and carbon dioxide are liberated.
`"ZnCO"_3("s") overset("Heat")(->)"ZnO"("s") + "CO"_2("g")` - When a mixture of Cu2O and Cu2S is heated we get the pure copper.
`2"Cu"_2"O"("s") + "Cu"_2("s") overset("Heat")(->) 6"Cu"("l") + "SO"_2("g")`
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