Two ores A and B are taken. On heating ore A it gives CO2 whereas ore B gives SO2. What steps to be taken to convert them into metals? Give the name and formula of an ore of mercury
Answers
Answered by
0
Ore A by calcination and ore B by roasting
Answered by
0
When carbonate ore (ore A) is heated, it produces carbon dioxide. A carbonate ore undergoes calcination to give metal oxide. For example, zinc carbonate undergoes calcination to give zinc oxide.
ZnCO3 → ZnO + CO2
When a sulphide ore (ore B) is heated, it produces sulphur dioxide. A sulphide ore undergoes roasting to give metal oxide. For example, zinc sulphide undergoes roasting to give zinc oxide.
2ZnS + 3O2→ 2ZnO + 2SO2
After calcinations or roasting, zinc oxide should be reduced to obtain zinc. ZnO is a white powdery substance and is insoluble in water.
2ZnO + C → 2Zn + CO2
Similar questions