In a thermite process, _____ is used as reducing agent

Options

A. Zn
B. Al
C. Mn
D. Fe

Explanation

**Step-by-Step Solution:**

1. **Understanding the Thermite Process**: The thermite process is a type of exothermic reaction that involves the reduction of metal oxides to obtain pure metals. It is commonly used in metallurgy for the extraction of metals.

2. **Identifying the Reducing Agent**: In the thermite process, aluminum is used as the reducing agent. This means that aluminum donates electrons to the metal oxide, thereby reducing it.

3. **Reaction Overview**: The general reaction can be represented as:
\[ \text{Metal Oxide} + \text{Aluminum} \rightarrow \text{Metal} + \text{Aluminum Oxide} \]
For example, if we take aluminum and iron(III) oxide (Fe2O3), the reaction would be:
\[ 2 \text{Al} + \text{Fe}_2\text{O}_3 \rightarrow 2 \text{Fe} + \text{Al}_2\text{O}_3 \]
Here, aluminum reduces iron(III) oxide to iron.

4. **Conclusion**: Therefore, the correct answer to the question is that aluminum is used as the reducing agent in the thermite process.

**Final Answer**: In a thermite process, **aluminum** is used as the reducing agent.

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