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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15. $100 What is an alloy?. Mixture of elements. Compound of elements. A:. B:. Compound of elements, one of them a metal. Mixture of elements, one of them a metal. C:. D:. Excellent!. Unlucky!. That ’ s incorrect. $200

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  2. $100 What is an alloy? Mixture of elements Compound of elements A: B: Compound of elements, one of them a metal Mixture of elements, one of them a metal C: D:

  3. Excellent!

  4. Unlucky! That’s incorrect

  5. $200 What is the problem with many pure metals? They are too soft They are too hard A: B: They are too brittle They are too reactive C: :

  6. Excellent!

  7. Sorry That’s incorrect…

  8. $300 Adding impurities to metal makes it…..? More soft More reactive A: B: More hard C: D: More pure

  9. Fantastic

  10. Oh dear! That’s incorrect…

  11. $500 Brass is an alloy of? Copper and zinc Aluminium and titanium A: B: Iron and carbon Mercury and tin C: D:

  12. Brilliant

  13. Sorry That’s incorrect…

  14. $1,000 Why have we known how to extract copper for many centuries? It is always native It is reactive A: B: It can’t be reduced It is not very reactive C: D:

  15. Well done!

  16. Unlucky!

  17. $2,000 Why are aluminum and titanium useful? They are strong and light They are cheap to make A: B: They are easy to extract They are strong and heavy C: D:

  18. Super!

  19. Oh no! That’s incorrect!…

  20. $4,000 Reactive metals need to be separated from their ores using? Reduction Displacement A: B: Electrolysis Oxidation C: D:

  21. Very good!

  22. Incorrect So near and yet so far!

  23. $8,000 Why don’t aluminum and titanium corrode easily? They are unreactive They are reactive A: B: They form a protective oxide coating They are alloys C: D:

  24. Very good!

  25. Sorry! That’s incorrect…

  26. $16,000 Which is not true for electrolysis? The ores have got to be melted first The ores must have impurities removed A: B: It is cheap It uses a lot of energy C: D:

  27. Very good!

  28. Unlucky That’s incorrect…

  29. $32,000 Which is a not problem with extracting aluminum and titanium? Digestion They both involve reduction They are expensive A: B: Digestion They involve many stages They use a lot of energy C: D:

  30. Brilliant!

  31. Unfortunately… That’s incorrect!

  32. $64,000 Which part of the periodic table to we find most of the useful metals? Alkali metals Alkaline earth metals A: B: Transition metals Magnetic metals C: D:

  33. Well done!

  34. I’m sorry That’s incorrect…

  35. $125,000 How is titanium actually separated from its ore? Displacement Reduction A: B: Smelting Electrolysis C: D:

  36. Very good!

  37. Incorrect You should have got that one!

  38. $250,000 What is aluminum ore called? Malachite • Loadstone A: B: Haematite Bauxite C: D:

  39. Excellent!

  40. Wrong Choice! That’s incorrect…

  41. $500,000 Why were certain metals discovered fairly recently? They aren’t very reactive They are rare A: B: There can only be extracted with electrolysis They are buried deep underground C: D:

  42. Very Good!

  43. Sorry! That’s incorrect…

  44. $ 1,000,000 What does ductile mean? Can be shaped easily Brittle A: B: Can be drawn into wires C: D: Hard

  45. Fantastic!

  46. Unlucky You were nearly a millionaire!

  47. Thank you for playing! Thank you for playing!

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