Two ores A and B were taken. On heating ore A gives CO2whereas, ore B gives SO2. What steps will you take to convert them into metals?
When a carbonate ore is heated, we get carbon dioxide. A carbonate ore is calcinated to obtain oxide of the metal. Following equation shows calcinations of zinc carbonate.
ZnCO3 + ZnO → CO2
When a sulphide ore is roasted, we get Sulphur dioxide. Zinc sulphide is roasted to obtain zinc oxide.
2ZnS + 3O2 → 2ZnO + 2SO2
After any of the above steps; zinc oxide is reduced to obtain pure zinc.
ZnO + C → Zn + CO
