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- 1. Multiple Choice
What is an ore?
a solid metal
a rock containing a metal combined with other elements, often oxygen
an element
an object used to row a boat
- 2. Multiple Choice
Which of these elements are unlikely to be found uncombined in the earth's crust?
gold
potassium
aluminium
silver
- 3. Multiple ChoiceWhat is the removal of oxygen from a substance called?reductionextractionelectrolysisoxidation
- 4. Multiple ChoiceWhat is the addition of oxygen to a substance called?decompositionreductionoxidationextraction
- 5. Multiple Choice
Which element cannot be extracted from its ore by reduction with carbon?
iron
aluminium
copper
zinc
- 6. Multiple ChoiceWhich series is used to predict the reactions of metals with carbon and other elements?reactionary seriesreaction seriesredox seriesreactivity series
- 7. Multiple Choice
What is the name of the process that uses electricity to separate the elements in a compound?
reduction
electrolysis
extraction
mining
- 8. Multiple Choice
How would you best extract iron from haematite (iron ore)?
reduction by carbon
electrolysis
decomposition
oxidation
- 9. Multiple Choice
Many metals are extracted from their ores by heating them with carbon in huge furnaces. Which metal(s) cannot be extracted using this method?
Aluminum
Calcium
Zinc
Copper
- 10. Multiple ChoiceWhich statement is correct about extraction of iron from its ore?Iron is more difficult to extract than copperIron is the easiest metal to extractIron cannot be extracted from its ore
- 11. Multiple Choice
Name a metal that could be extracted from its metal oxide by heating with carbon.
iron
aluminium
gold
magnesium
- 12. Multiple Choice
A method of extracting the most reactive metals, like potassium or aluminium.
carbon extraction
fractional distillation
electrolysis
cracking
- 13. Multiple Choice
How would you extract Silver?
Heating with coke
Electrolysis
The blast furnace
Silver is found uncombined
- 14. Multiple Choice
What method would be used in order to extract potassium?
Heating with Carbon
The blast furnace
Potassium is found uncombined
Electrolysis
- 15. Multiple Choice
Which of these metals were the first to be discovered?
potassium
calcium
gold
silver
- 16. Multiple Choice
Which of these metals was the last to be discovered?
Potassium
Copper
Silver
Platinum
- 17. Multiple Choice
Which of these metals requires the most energy to be separated from its ore?
copper
silver
potassium
aluminium
- 18. Multiple Choice
Which of these metals requires the least energy to be separated from its ore?
copper
lead
potassium
aluminium
- 19. Multiple Choice
Which of these metals can't be extracted by carbon reduction?
copper
lead
potassium
aluminium
- 20. Multiple Choice
Which of these metals is most likely to be found locked in an ore?
silver
gold
potassium
platinum
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