1. Who Wants To Be A Millionaire?
Limestone Edition

2. Question 1

3. What is the chemical formula of limestone?
A CaO
B Ca(OH)2
C CaCO3
D CaCO2

4. Answer

5. £100

6. Question 2

7. How is quicklime formed from limestone?
A Heating
B Adding water
C Mixing with clay
D Mixing with sand

8. Answer

9. £200

10. Question 3

11. Calcium oxide is formed by what type of reaction?
A reduction
B oxidation
C thermal decomposition
D addition

12. Answer

13. £300

14. Question 4

15. What is the common name for calcium hydroxide?
A lime
B quicklime
C limewater
D slaked lime

16. Answer

17. £500

18. Question 5

19. Compared to limestone slaked lime is…
A stronger acid
B stronger alkali
C neutral
D weaker alkali

20. Answer

21. £1,000

22. Question 6

23. The products formed in a lime kiln are:
A CaO + CO2
B CaO + H2O
C CaO + CO
D CaO2 + CO2

24. Answer

25. £2,000

26. Question 7

27. Which of the following is limestone not used for?
A Making cement
B Making glass
C Building
D Acidifying lakes

28. Answer

29. £4,000

30. Question 8

31. Cement is made from? A clay and limestone B clay and soda
C clay and quicklime
D clay and slaked lime

32. Answer

33. £8,000

34. Question 9

35. Glass is produced from.. A soda, clay and limestone
B soda, sand and limestone
C clay, sand and limestone
D cement, soda and limestone

36. Answer

37. £16,000

38. Question 10

39. Limestone in the Peak District was formed how long ago?
A 100 million years
B 200 million years
C 300 million years
D 400 million years

40. Answer

41. £32,000

42. Question 11

43. Quicklime reacts with water to produce..
A Soda
B Limestone
C Slaked lime
D Calcium oxide

44. Answer

45. £64,000

46. Question 12

47. Concrete is formed when sand is mixed with..
A water, cement & lime
B water, cement & gravel
C water, lime and clay
D water, cement and clay

48. Answer

49. £125,000

50. Question 13

51. A calcium dioxide B quicklime C calcium hydroxide D limewater
Calcium oxide + water ?
A calcium dioxide
B quicklime
C calcium hydroxide
D limewater

52. Answer

53. £250,000

54. Question 14

55. An example of a type of sedimentary rock is..
A marble
B slate
C basalt
D mudstone

56. Answer

57. £500,000

58. Question 15

59. The chemical name for limewater is
A calcium hydroxide solution
B calcium oxide solution
C calcium carbonate solution
D calcium hydroxide

60. Answer

61. £1,000,000