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6. Why is Titanium not extracted by carbon?
- Its too expensive to use
- It forms titanium Carbide which makes it brittle
- It's activation energy's too high
- It's more reactive
7. Equation at the Cathode
- Al3+ + 2e- → Al
- Al3+ + 3e- → Al
- Al2+ + 2e- → Al
- 2O2- → O2 + 4e-
8. The Equation at the anode of Aluminium Extraction
- 3O2- → O2 +4e-
- Al3+ + 3e- → Al
- 2O2- → O2 + 4e-
- 2O2- → O2 + 2e-
9. How is extracted Tungsten from its Ore?
- Reduction of Oxygen
- Reduction by Hydrogen
- Electrolysis
- Reduction by Carbon