In which of the following pair of metals, both are commercially extracted from their respective ores by carbon reduction method ?

Options

A. Zn, Cu
B. Fe, Cu
C. Sn, Zn
D. Al, Ag

Answer

To determine which pair of metals is commercially extracted from their respective ores by the carbon reduction method, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Carbon Reduction Method**:
- The carbon reduction method involves the reduction of metal oxides using carbon (usually in the form of coke) to obtain the pure metal. This method is commonly used for metals that are less reactive than carbon.

2. **Identify Metals Commonly Extracted by Carbon Reduction**:
- Metals that are typically extracted using this method include iron, tin, zinc, and lead.

3. **Examine the Given Pairs of Metals**:
- We need to analyze the pairs of metals provided in the question to see if both metals in each pair can be extracted using the carbon reduction method.

4. **Analyze Each Metal in the Pair**:
- For example, if the pair is (tin, zinc):
- **Tin (Sn)**: Tin is extracted from its ore, tin oxide (SnO2), by reducing it with carbon.
- **Zinc (Zn)**: Zinc is extracted from its ore, zinc oxide (ZnO), which can be obtained from zinc sulfide (ZnS) through roasting and then reduced with carbon.

5. **Confirm the Extraction Process**:
- Both tin and zinc are extracted through the carbon reduction process, confirming that this pair meets the criteria.

6. **Conclusion**:
- Based on the analysis, the correct answer is the pair of metals that includes both tin and zinc, as both are commercially extracted from their ores using the carbon reduction method.

### Final Answer:
The pair of metals that are both commercially extracted from their respective ores by the carbon reduction method is **tin and zinc**.