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- 1. Multiple Choice
Which element in unlikely to occur as a native metal?
Gold
Silver
Copper
Aluminium
- 2. Multiple Choice
What extraction method is needed for the mineral ore hematite?
Electrolysis
Refining
Heating with carbon
Extraction with another metallic element
- 3. Multiple Choice
Is an alloy a mixture or pure substance?
Pure substance
Mixture
- 4. Multiple Choice
Bronze is a mixture of what two metallic elements?
Copper
Lead
Tin
Alluminium
- 5. Multiple Choice
Brass is a mixture of which two metallic elements?
Tin
Zinc
Copper
Iron
- 6. Multiple Choice
What is the best mineral ore for extracting aluminium?
Bauxite
Barite
Beryl
Bornite
- 7. Multiple Choice
For minerals, what does the Mohs Scale measure?
Conductivity
Density
Luster
Hardness
- 8. Multiple Choice
Why are aluminium and copper used in electrical wires?
More affordable than silver
Excellent conductivity
Low resistance
High densisty
- 9. Multiple Choice
What were the first two elements to exist?
Helium
Carbon
Iron
Hydrogen
- 10. Multiple Choice
How does the sun generate energy?
Nuclear fision
Nuclear fusion
Nuclear synthesis
Heat transfer
- 11. Multiple Choice
Which elements are unlikely to undergo nuclear fusion?
Iron
Nitrogen
Florine
Uranium
- 12. Multiple Choice
What is an alloy?
A combination of two or more metallic elements
A mixture of three metallic elements
A combination of a metallic element and non-metallic element
A metalloid
- 13. Multiple Choice
Which are examples of rock?
Basalt
Zinc
Fluride
Coal
- 14. Multiple Choice
Which is not a characteristic of a mineral?
Indefinite chemical composition
Crystal lattice structure
Inorganic solid
Naturally occurring
- 15. Multiple Choice
What statement is false about rocks?
Rocks are naturally occurring
Rocks are a mixture of several minerals
Rocks have no definite chemical composition
Rocks are a pure substance
- 16. Multiple Choice
In a redox reaction, what two reactions occur at the same time?
Oxidisation
Combustion
Reduction
Decomposition
- 17. Multiple Choice
Which is not a common type of mineral ore?
Hydrides
Oxides
Sulphides
Carbonates
- 18. Multiple Choice
The electrical conductors in electrolysis are called?
Conductors
Eletrons
Electrodes
Rods
- 19. Multiple Choice
In electrolysis, the anode has what type of charge?
Positive
Negative
- 20. Multiple Choice
In electrolysis, what type of ions are attract to the cathode?
Positively charged cations
Negatively charged anions
Positively charged anions
Negatively charged cations
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