Name: Obtaining and Using Metals
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Question 1 of 11

Question 1
Most metals are obtained in what way?
- Extracted from ores found within the Earth's crust
- Found in large blocks on the surface of the Earth
- Found in large blocks in the deep ocean
- Found as small spheres on the ocean floor
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Question 2 of 11

Question 2
Metals which are unreactive are extracted from the Earth in what way?
- Through electrolysis
- Found as uncombined elements
- Through filtration and crystalisation
- Through distillation
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Question 3 of 11

Question 3
What is an ore?
- A rock that contains enough of a compound to extract a metal profitably
- A pure metal such as gold
- A lump of impure metal found in the deep ocean
- Recycled aluminium from old mobile phones
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Question 4 of 11

Question 4
Use some of the following words to fill in the blanks. You can use each word more than once.

Copper, carbon, hydrogen, oxygen, less, more, electrolysis, heating
- Complete the statements:
  1. Metals that are reactive than are extracted through .
  2. Metals that are reactive than are extracted by in a furnace.
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Question 5 of 11

Question 5
Drag and drop to match the metal to the method of extraction used to obtain it.
- Electrolysis of a molten compound
- Heating an ore with carbon
- Aluminium
- Iron
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Question 6 of 11

Question 6
Drag and drop to match the metal with the ore they are extracted from.
- Bauxite
- Haematite
- Aluminium
- Iron
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Question 7 of 11

Question 7
Why are some metals extracted through heating with carbon rather than through electrolysis?
- Electrolysis is more expensive than heating with carbon
- Electrolysis is cheaper than heating with carbon
- Very few countries have figured out how to extract metals with electrolysis
- Electrolysis is only possible with potassium, sodium and calcium
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Question 8 of 11

Question 8
Use the following terms to fill in the blanks. Use each term more than once.

Phytoextraction, bioleaching, both
- Match the advantages and disadvantages with the correct method of metal extraction:
  - No harmful gases (e.g. sulfur dioxide) are produced –
  - Is a very slow process –
  - Does not require high temperatures –
  - Toxic substances and sulfuric acid which are produced as a byproduct can damage the environment –
  - Can be used to extract metals from contaminated soils –
  - Is more expensive than mining some ores –
  - Growing plants is dependent on weather and climate conditions –
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Question 9 of 11

Question 9
Substances can gain or lose oxygen in Redox reactions. Drag and drop to match the term to the correct process.
- Oxidation
- Reduction
- Gain of oxygen
- Loss of oxygen
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Question 10 of 11

Question 10
Many ores are reduced to obtain the metals from them. What does the term reduction mean?
- Loss of oxygen
- Gain of oxygen
- Gain of hydrogen
- Loss of nitrogen
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Question 11 of 11

Question 11
Corrosion happens when a metal reacts with oxygen. Which of the following statements is correct about the speed of corrosion of metals?
- Metals that are more reactive are oxidised faster
- Metals that are less reactive are oxidised slower
- Highly reactive and not very reactive metals react fastest
- Reactivity is not relevant to the speed of oxidation. Transition metals oxidise very quickly and all other metals oxidise slowly
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Obtaining and Using Metals Quiz

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