What chemcial principal is involved in choosing a reducing agent for getting the metal from its oxide ore? Consider the metal oxides `Al_(2)O_(3) and Fe_(2)O_(3)` and justify and choice of reducing agent in each case.

Explanation

To determine the appropriate reducing agent for extracting metals from their oxide ores, we need to consider the electropositivity of the metals involved. Let's analyze the metal oxides \( \text{Al}_2\text{O}_3 \) (aluminum oxide) and \( \text{Fe}_2\text{O}_3 \) (iron(III) oxide) and justify the choice of reducing agents for each case.

### Step-by-Step Solution:

1. **Understanding Electropositivity**:
- Metals can be categorized based on their electropositivity. Highly electropositive metals (like sodium, potassium) are typically extracted through electrolysis of their ores.
- Less electropositive metals (like aluminum and iron) can be extracted using reducing agents.

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