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2. What is used to extract titanium?

  • Chlorine and carbon, fractional distillation then magnesium or sodium
  • Magnesium or Sodium
  • Carbon
  • Hydrogen then fractional distillation then magnesium

3. Disadvantages of using hydrogen to extract tungsten

  • Gives tungsten impurities
  • Produces CO2 which is a greenhouse gas
  • Very expensive and Hydrogen is highly expolsive
  • Takes a long time

4. Disadvantage of using carbon to extract iron, copper and manganese

  • Produces CO2 which is a greenhouse gas
  • Gives metals impurities
  • Very expensive
  • Time consuming

5. The Equation at the anode of Aluminium Extraction

  • 3O2- → O2 +4e-
  • Al3+ + 3e- → Al
  • 2O2- → O2 + 4e-
  • 2O2- → O2 + 2e-
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