1.

09 a) Give the reaction involved ini) Roasting of Zinc blendeii Calcination of zinc carbonate (calamine)

Answer»

1)2ZnS + 3O2→ 2ZnO + 2SO22)In calcination process the carbonate ore is heated strongly in the absence of air to convert it into metal oxide. As obtaining metal from metal oxide is easy process.ZnCO₃ (on calcination) → ZnO + CO₂



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