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Metals
  • 1. The useful part of the mineral, where you can find the metal is
A) Gold
B) Ore
C) Gangue
D) Steel
  • 2. The worthless part of the mineral is
A) Pure iron
B) Aluminium
C) Ore
D) Gangue
  • 3. We can obtain wires of metals because metals have a property called
A) Malleability
B) Ductility
  • 4. Metals can be in sheets thanks to a property called
A) Ductility
B) Malleability
  • 5. In a blast furnace we add the following elements
A) Pig iron and slag
B) Iron ore, flux and carbon
C) Copper anda zinc
  • 6. The pure iron is very fragile and soft.
A) Sometimes
B) True
C) False
  • 7. The steel is an alloy made up with
A) Iron and carbon between 2,1% and 6,7%
B) Iron and les that 2% Carbon
C) Steel is not an alloy.
  • 8. Cast iron contain iron and
A) Carbon in a percentage between 2,1 and 6,7%
B) Less than 2% carbon.
  • 9. Brass is a non ferrous alloy made of
A) Copper and tin
B) Aluminium and bronze
C) Copper and zinc
  • 10. Bronze is a very useful alloy made of
A) Vanadium and gold
B) Silver and iron
C) Copper and tin
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