The etraction of metals from oxide ores involves

Options

A. Reduction with carbon
B. Reduction with aluminium
C. Electrolyte reduction
D. Reduction with CO

Answer

To solve the question regarding the extraction of metals from oxide ores, we will break down the process into clear steps.

### Step-by-Step Solution:

1. **Understanding Oxide Ores**:
- Oxide ores are minerals that contain metal in the form of oxides. Examples include iron oxide (Fe2O3), aluminum oxide (Al2O3), and copper oxide (CuO).

2. **Reduction Process**:
- The extraction of metals from their oxide ores typically involves a reduction process. Reduction is the chemical reaction where oxygen is removed from the metal oxide, resulting in the formation of the pure metal.

3. **Methods of Reduction**:
- There are several methods for reducing metal oxides to their respective metals:
- **Reduction with Carbon**: This is commonly done in a blast furnace where carbon (in the form of coke) is used to reduce metal oxides. For example, iron oxide is reduced to iron using carbon.
- **Reduction with Aluminium**: This method is known as thermite reaction, where aluminium powder is used to reduce metal oxides, producing the metal and aluminium oxide as a byproduct.
- **Electrolytic Reduction**: This method involves using electricity to reduce metal ions in a molten or aqueous state. This is commonly used for metals like aluminum, where bauxite (Al2O3) is electrolyzed.
- **Reduction with Carbon Monoxide (CO)**: In some cases, carbon monoxide is used as a reducing agent to convert metal oxides to metals. This is seen in the extraction of metals like copper.

4. **Conclusion**:
- All the methods mentioned (reduction with carbon, aluminium, electrolytic reduction, and reduction with CO) are valid and commonly used in the extraction of metals from oxide ores. Thus, the answer to the question is that the extraction of metals from oxide ores involves multiple reduction methods.

### Final Answer:
The extraction of metals from oxide ores involves reduction with carbon, reduction with aluminium, electrolytic reduction, and reduction with CO. All methods are correct.

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