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 question, we need to explain the processes used to convert ores A and B into their oxide forms, along with balanced chemical equations.

### Step 1: Identify the Ores
- **Ore A** produces CO2 upon heating, indicating it is a carbonate ore.
- **Ore B** produces SO2 upon heating, indicating it is a sulfide ore.

### Step 2: Process for Ore A (Carbonate Ore)
- The process used to convert carbonate ores to their oxide forms is called **calcination**. This process involves heating the ore in the absence of air (oxygen).
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