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Who wants to be a chemist

Where does corrosion occur?. A Inside a metalB On the surface of a metalC Inside an ore.D On the surface of an ore.. Rusting is the corrosion of what metal?. A LeadB CopperC Iron. Rusting requires what conditions?. A Dry and Oxygen presentB Wet and oxygen presentC Dry and Oxygen absentD Wet

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Who wants to be a chemist

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    1. Who wants to be a chemist? Topic 12 Corrosion

    2. Where does corrosion occur? A Inside a metal B On the surface of a metal C Inside an ore. D On the surface of an ore.

    3. Rusting is the corrosion of what metal? A Lead B Copper C Iron

    4. Rusting requires what conditions? A Dry and Oxygen present B Wet and oxygen present C Dry and Oxygen absent D Wet and oxygen absent

    5. Which of the following will rust the quickest? A Nail in boiled water with oil on top. B Nail in tap water. C Nail in salt water.

    6. What happens in the first rust equation? A Iron atoms lose 2 electrons B Iron ions lose an electron C Iron ions gain electrons D Iron atoms gain electrons

    7. What is the first rust equation an example of? A Oxidation B Reduction C Precipitation

    8. What ions are formed when oxygen combines with water during rusting? A Hydrogen B Oxide C Hydroxide

    9. What colour does Fe 2+ ions turn ferroxyl indicator? A Pink B Black C Clear D Blue

    10. What colour does Hydroxide ions turn ferroxyl indicator? A Blue B Black C Pink D Clear

    11. What metal is used in Galvanising A Magnesium B Tin C Copper D Zinc

    12. Which metal could be used to give sacrificial protection to zinc? A Iron B Gold C Tin D Magnesium

    13. What would happen when a galvanised iron fence is scratched? A Rust quicker B Iron sacrificially protected.

    14. What protects iron when you attach it to the negative terminal of a battery? A Protons B Ions C Electrons D Battery man the superhero

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