Other questions in this quiz

2. What is the definition of an ore?

  • An ore contains enough metal to make it economic to extract the metal
  • An ore is an unreactive metal
  • An ore is a mixture of metals
  • An ore is the product of a reaction

3. Metals that are more reactive than carbon, such as aluminium are extracted by?

  • Reduction by oxygen
  • Electrolysis
  • Reduction by carbon
  • Reduction by iron

4. What must happen to ores before the metal is extracted and purified?

  • The ore must be mined and concentrated
  • The ore must have more metals added to it
  • The ore must become less dense
  • The ore must be put in a catalyst

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