Parke's process is used to extract

Options

A. Silver using `NaCl`
B. Copper using `CuFeS_(2)`
C. Silver from argentiferrous lead
D. Silver by forming amalgam

Explanation

**Step-by-Step Solution:**

1. **Understanding Parke's Process**:
- Parke's process is a method used specifically for the extraction of silver. It is particularly effective for extracting silver from argentiferous lead.

2. **Identifying Argentiferous Lead**:
- Argentiferous lead refers to lead that contains a small percentage of silver. The chemical formula for lead sulfide is PbS, which is the primary ore from which silver is extracted using this process.

3. **Composition of Argentiferous Lead**:
- Argentiferous lead typically contains about 0.0121% silver along with lead sulfide (PbS).

4. **Process of Extraction**:
- In the Parke's process, the argentiferous lead is treated to separate the silver from the lead. This involves the use of a suitable chemical process to extract the silver efficiently.

5. **Evaluating Options**:
- The question provides several options regarding what Parke's process is used to extract:
- Option 1: Silver using NaCl - Incorrect.
- Option 2: Copper using CuFe - Incorrect.
- Option 3: Silver from Argentiferous lead - Correct.
- Option 4: Silver from Amalgam - Incorrect.

6. **Conclusion**:
- Based on the evaluation, the correct answer is that Parke's process is used to extract silver from argentiferous lead.

**Final Answer**: Parke's process is used to extract silver from argentiferous lead.

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