Question

Calcination is the process of metallurgy which is done basically ____________
1. For concentration of ore
2. For refining of ore
3. For reducing oxide ore to metal
4. For converting carbonate ore to oxide ore

Answer 1

Correct Answer - Option 4 : For converting carbonate ore to oxide ore

Explanation:

• Calcination is the process of converting carbonate ore to oxide ore by the process of heating in absence of air. 
• The chemical equation of calcination is 

\(ZnCO_3 \ \overset{heating \ without \ air}{\rightarrow} \ ZnO + CO_2\)

• Zinc Carbonate ore is converted to zinc oxide.
• The oxide is further reduced to metal. 
• So, the correct option is For converting carbonate ore to oxide ore.

• Roasting is the process of converting ores to the metal oxide by the process of heating in presence of air. It is done basically for sulphide ores.

• Metallurgy is the process of conversion of ore into metal in usable form. 
• The various process involved in the metallurgy of metals having reactivity in medium-range includes
• Concentration: Removal of gauge particles that include.
• Converting metal into metal oxide by roasting or calcination. 
• Reducing metal oxide to metal.