Other questions in this quiz

2. What can be obtained from solutions of copper salts by electrolysis or by displacement using scrap iron?

  • Bacteria
  • Plants
  • Copper
  • Iron

3. What makes iron brittle?

  • Impurites
  • Being too hard
  • Being too soft
  • Being to rigid

4. Pure copper, gold, iron, aluminium are too soft, what are these metals mixed with to make them harder?

  • Bigger amounts of a range of metals
  • Bigger amounts of similar metals
  • Small amounts of similar metals
  • Small amounts of a range of metals

5. What is a steel?

  • An alloy that contains carbon and oxygen
  • An alloy that contains mixtures of iron and carbon
  • An alloy that contains iron, carbon and oxygen
  • An alloy that contains mixtures of iron and oxygen

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