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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 ChoiceWhat is oxidation?loss of oxygengain of electronsgain of hydrogenloss of electrons
- 6. Multiple ChoiceWhich element cannot be extracted from its ore by reduction with carbon?ironaluminiumcopperlead
- 7. Multiple ChoiceWhich series is used to predict the reactions of metals with carbon and other elements?reactionary seriesreaction seriesredox seriesreactivity series
- 8. Multiple ChoiceWhat is the name of the process that uses electricity to separate the elements in a compound?reductionelectrolysisextractionmining
- 9. Multiple ChoiceHow could you extract sodium from molten sodium chloride?reduction by carbonelectrolysisdecompositionoxidation
- 10. Multiple ChoiceHow would you best extract iron from haematite (iron ore)?reduction by carbonelectrolysisdecompositionoxidation
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