Extraction of lead by reduction methods is done by

Options

A. Adding more galena into reverberatory furnace
B. Adding more lead sulphate into reverberatory furnace
C. Adding more galena and coke into the reverberatory furnace
D. Self reduction of oxide from sulphide present in the furnace

Explanation

To solve the question regarding the extraction of lead by reduction methods, we will go through the process step by step.

### Step-by-Step Solution:

1. **Identify the Ore**: The primary ore of lead is Galena, which is chemically represented as PbS (lead sulfide).

2. **Reduction Process**: The extraction of lead from its ore involves a reduction process. In metallurgy, reduction refers to the removal of oxygen or the addition of hydrogen or carbon to convert metal oxides or sulfides into the metal.

3. **Use of a Furnace**: The reduction of lead sulfide (PbS) is typically carried out in a furnace, specifically a reverberatory furnace. This type of furnace allows for the efficient heating and reduction of the ore.

4. **Addition of Coke**: During the reduction process, coke (a form of carbon) is added to the furnace. The carbon reacts with the sulfur in the lead sulfide to produce carbon dioxide (CO2) and lead metal (Pb).

The reaction can be summarized as follows:
\[ 2 \text{PbS} + \text{C} \rightarrow 2 \text{Pb} + \text{CS}_2 \]

5. **Collection of Lead**: The lead produced is then collected from the bottom of the furnace, where it accumulates as a molten metal.

6. **Final Product**: The final product of this reduction process is pure lead metal, which can be further purified if necessary.

### Conclusion:
The extraction of lead by reduction methods is done by adding Galena (PbS) and coke into a reverberatory furnace.

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