Two Ores on Heating, A gives `CO_2` whereas ore B gives `SO_2`. Explain the processes with help of balanced chemical equation, which is used to convert ores A and B into their oxide ores with an example.

Explanation

To solve the problem, we need to explain the processes of converting ores A and B into their oxide ores, along with balanced chemical equations. We will identify the processes as calcination and roasting.

### Step-by-Step Solution:

1. **Understanding the Ores:**
- Ore A produces \( CO_2 \) when heated, indicating it is likely a carbonate ore.
- Ore B produces \( SO_2 \) when heated, indicating it is likely a sulfide ore.

...