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Who Wants To Be A Millionaire?

Who Wants To Be A Millionaire?. Limestone Edition. Question 1. What is the chemical formula of limestone?. A CaO B Ca(OH)2 C CaCO3 D CaCO2. Answer. £100. Question 2. How is quicklime formed from limestone?. A Heating B Adding water C Mixing with clay D Mixing with sand.

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Who Wants To Be A Millionaire?

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  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

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