Other questions in this quiz

2. What is the electrolyte in electrolysis?

  • the posts in the water that apply electricity to the electrolyte.
  • liquid containing the compound which conducts the electricity
  • the electricity source

3. Why do metals rust?

  • because it has been exposed to too much water
  • because it has been exposed to too much carbon dioxide
  • because the metal is being oxidised (gain of oxygen)
  • because the metal has lost oxygen (reduction)

4. Which method would be used to extract iron from its metal ore?

  • heating with carbon
  • electrolysis

5. What are the properties of aluminium?

  • low density, corrosion resistant, forms strong alloys
  • shiny and easy to bend,unreactive
  • strong, hard, high melting point, conducts electricity

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