Why is recycling aluminium better than extracting it from its ore?
Answer and explanation
Correct answer: A. It uses much less energy than electrolysis of the molten ore
- Step 1: Electrolysis needs large amounts of electricity. Step 2. Melting scrap uses far less energy. Answer: It uses much less energy than electrolysis of the molten ore. Why not the others: Recycling does not change the metal's reactivity.
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