Calamine ore can be converted into ZnO by the process of:DehydrationRoastingCalcinationSulphonation
Question
Calamine ore can be converted into ZnO by the process of:
- Dehydration
- Roasting
- Calcination
- Sulphonation
Solution
The process of converting Calamine ore into ZnO (Zinc Oxide) is called Roasting.
Here are the steps:
-
Roasting: This is the process where the ore is heated in the presence of excess air. For zinc, the ore is heated at very high temperatures. This process is carried out in a reverberatory furnace.
-
The calamine ore (ZnCO3) is heated strongly where it decomposes to form Zinc Oxide (ZnO) and Carbon Dioxide (CO2).
The chemical reaction is as follows:
ZnCO3 (s) → ZnO (s) + CO2 (g)
So, the correct answer is Roasting.
Similar Questions
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