Highly electropositive metals like sodium, megnesium or aluminium are obtained by ……………….of their purified molten ores.

Answer

To solve the question regarding the extraction of highly electropositive metals like sodium, magnesium, and aluminum from their purified molten ores, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Extraction Process**:
- Highly electropositive metals are those that have a strong tendency to lose electrons and form positive ions. This property makes them difficult to extract from their ores using traditional methods.

2. **Identifying the Method**:
- The most effective method for extracting these metals is through **electrolysis**. This process involves using electrical energy to drive a non-spontaneous chemical reaction.

3. **Electrolysis of Ores**:
- When we apply electrolysis to the molten ores of these metals, we can separate the metal from its compounds. For example, for magnesium, we can use magnesium chloride (MgCl2) as the molten ore.

4. **Chemical Reactions During Electrolysis**:
- In the case of magnesium chloride, during electrolysis:
- At the cathode (negative electrode), magnesium ions (Mg²⁺) gain electrons to form magnesium metal (Mg).
- At the anode (positive electrode), chloride ions (Cl⁻) lose electrons to form chlorine gas (Cl₂).

5. **Conclusion**:
- Therefore, the answer to the question is that highly electropositive metals like sodium, magnesium, and aluminum are obtained by **electrolysis** of their purified molten ores.

### Final Answer:
Highly electropositive metals like sodium, magnesium, or aluminum are obtained by **electrolysis** of their purified molten ores.

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