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- 1. Multiple ChoiceWhat is an ore?a solid metala rock cantaining a metal combined with other elementsan elementan object used to row a boat
- 2. Multiple ChoiceWhich of these elements is unlikely to be found native?goldplatinumaluminiumsilver
- 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 ChoiceWhich element cannot be extracted from its ore by reduction with carbon?ironaluminiumcopperlead
- 6. Multiple ChoiceWhich series is used to predict the reactions of metals with carbon and other elements?reactionary seriesreaction seriesredox seriesreactivity series
- 7. Multiple ChoiceWhat is the name of the process that uses electricity to separate the elements in a compound?reductionelectrolysisextractionmining
- 8. Multiple ChoiceHow could you extract sodium from molten sodium chloride?reduction by carbonelectrolysisdecompositionoxidation
- 9. Multiple ChoiceHow would you best extract iron from haematite (iron ore)?reduction by carbonelectrolysisdecompositionoxidation
- 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
How would you extract Silver?
Heating with coke
Electrolysis
The blast furnace
Silver is found uncombined
- 12. Multiple Choice
What method would be used in order to extract potassium?
Heating with Carbon
The blast furnace
Potassium is found uncombined
Electrolysis
- 13. Multiple Choice
Which of these metals requires the most energy to be separated from its ore?
copper
lead
potassium
aluminium
- 14. Multiple Choice
Which of these metals requires the least energy to be separated from its ore?
copper
lead
potassium
aluminium
- Answer choicesTagsAnswer choicesTags