Metals and their uses

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  • Created by: Busayoxo
  • Created on: 21-12-15 16:13

1. Which of the following is NOT a property of transition metals?

  • Useful as structural materials and for making things that let heat or electricity pass through
  • Good conductors of heat
  • Good insulators
  • Can be bent or hammered into shape
  • Good conductors of electricity
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2. What is the definition of an ore?

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

3. During electrolysis the positive metal ions move towards the negative electrode. Why does this happen?

  • Because opposite charges attract
  • Due to the negative sea of electrons
  • Because of the delocalised electrons
  • Due to photosynthesis

4. Copper can be extracted from copper-rich ores by heating the ores in a furnace this is also known as?

  • Smelting
  • Electrolysis
  • Phytoming
  • Bioleaching

5. Which of the following is NOT a reason why aluminium and titanium are useful metals

  • They are resistant to corrosion
  • They are expensive
  • They have low density

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