Converting Ore A into Metal:

1. Preparation of Ore A:
- Ore A needs to be crushed and ground into fine particles to increase the surface area for better chemical reactions.
- The crushed ore is then subjected to a process called concentration, where impurities are removed, and the desired metal-rich particles are separated.

2. Roasting of Ore A:
- The concentrated ore A is then subjected to roasting in the presence of excess oxygen.
- Roasting is a process of heating the ore strongly in a limited supply of air to convert it into its oxide.
- Ore A, being a carbonate, will release carbon dioxide (CO2) during roasting, leaving behind the metal oxide.

3. Reduction of Metal Oxide:
- The metal oxide obtained from roasting is then subjected to reduction to obtain the metal.
- Reduction is the process of removing oxygen from the metal oxide.
- The choice of reducing agent depends on the reactivity of the metal oxide.
- Common reducing agents include carbon, hydrogen, and carbon monoxide.

4. Refining of Metal:
- The obtained metal may still contain impurities and needs to be further refined.
- Refining processes like electrolysis, fractional distillation, or chemical reactions are employed to remove impurities and obtain pure metal.

Converting Ore B into Metal:

1. Preparation of Ore B:
- Ore B also needs to be crushed and ground to increase the surface area for better reactions.
- The crushed ore is then subjected to concentration to separate impurities and obtain metal-rich particles.

2. Roasting of Ore B:
- The concentrated ore B is roasted in the presence of excess air.
- Roasting converts the ore into its oxide form, releasing sulfur dioxide (SO2) gas.

3. Conversion of Metal Oxide:
- The metal oxide obtained from roasting needs to be converted into a more reactive form for further processing.
- Depending on the metal oxide, various conversion methods can be employed, such as:
- Carbon reduction: Metal oxide + Carbon → Metal + Carbon dioxide
- Acid leaching: Metal oxide + Acid → Metal salt + Water

4. Reduction of Metal Salt:
- The metal salt obtained from the conversion step is then reduced to obtain the pure metal.
- Different reducing agents can be used based on the reactivity of the metal salt.

5. Refining of Metal:
- Similar to Ore A, the obtained metal may still contain impurities and requires further refining to obtain pure metal.
- Refining techniques are employed to remove impurities and produce high-quality metal.

Note: The specific details and steps may vary depending on the type of ores, metals, and their reactivity. It is crucial to consider the properties of the ores and metals involved while designing the conversion processes.

After this we will prefer reduction reaction