Do you know how metals are extracted from ores?
Obtaining and Using Metals Quiz
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Question 1 of 11Question 1
Most metals are obtained in what way?
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Question 2 of 11Question 2
Metals which are unreactive are extracted from the Earth in what way?
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Question 3 of 11Question 3
What is an ore?
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Question 4 of 11Question 4
[question number = 06.3] 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
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Complete the statements:
- Metals that are reactive than are extracted through .
- Metals that are reactive than are extracted by in a furnace.
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Question 5 of 11Question 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 11Question 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 11Question 7
Why are some metals extracted through heating with carbon rather than through electrolysis?
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Question 8 of 11Question 8
Use the following terms to fill in the blanks. Use each term more than once.
Phytoextraction, bioleaching, both
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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 11Question 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 11Question 10
Many ores are reduced to obtain the metals from them. What does the term reduction mean?
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Question 11 of 11Question 11
Corrosion happens when a metal reacts with oxygen. Which of the following statements is correct about the speed of corrosion of metals?
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