Reverberatory furnace is employed in the metallurgical process mainly for

Options

A. Reduction of oxide ore
B. smelting of sulfide ore
C. getting magnetic materials
D. conversion of chloride to sulfate

Explanation

### Step-by-Step Solution:

1. **Understanding the Function of a Reverberatory Furnace**:
- A reverberatory furnace is primarily used in metallurgy for the smelting and reduction of ores. It allows for the heating of materials in a controlled environment.

2. **Reduction of Ores**:
- The main purpose of using a reverberatory furnace is to reduce metal oxides to their corresponding metals. This process is crucial in extracting metals from their ores.

3. **Process Involved**:
- In the reverberatory furnace, ores are heated with a suitable reducing agent. This agent facilitates the reduction of metal oxides to metals by providing the necessary chemical reaction.

4. **Heating Mechanism**:
- The furnace operates by reflecting heat from the roof onto the charge (the material being processed), ensuring even heating and effective reduction of the ore.

5. **Final Outcome**:
- The end result of using a reverberatory furnace is the production of crude metal from its oxide form, which can then be further refined if necessary.

### Conclusion:
Thus, the reverberatory furnace is employed in the metallurgical process mainly for the reduction of ores.

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