Ethanol · CAPE Chemistry Unit 2

31 past-paper questions on Ethanol, part of Industry and the Environment, from every CAPE Chemistry Unit 2 paper on Quelpr.

1. 3(a)(ii)2 marks· CAPE Chemistry Unit 2 · 2005 · Paper 2Give TWO differences in home-made alcoholic beverages resulting from the use of different starting materials.
2. 3(b)(i)1 mark· CAPE Chemistry Unit 2 · 2005 · Paper 2Explain why ethanol is classified as a drug.
3. 3(b)(ii)4 marks· CAPE Chemistry Unit 2 · 2005 · Paper 2Briefly describe FOUR consequences of alcohol abuse on the social and economic structures of our society.
4. 6(a)2 marks· CAPE Chemistry Unit 2 · 2008 (T&T) · Paper 2Name TWO substances which can be fermented to produce alcohol.
5. 6(b)4 marks· CAPE Chemistry Unit 2 · 2008 (T&T) · Paper 2Outline, using relevant equations, the process by which sucrose is converted to ethanol.
6. 6(d)2 marks· CAPE Chemistry Unit 2 · 2008 (T&T) · Paper 2Identify TWO physiological changes in the body which result from the abuse of alcohol consumption.
7. 6(e)(i)3 marks· CAPE Chemistry Unit 2 · 2008 (T&T) · Paper 2Outline THREE economic benefits of ethanol (alcohol) production.
8. 6(e)(ii)2 marks· CAPE Chemistry Unit 2 · 2008 (T&T) · Paper 2Suggest TWO measures that can be used to reduce the negative social effects of alcohol abuse.
9. 3(e)(i)2 marks· CAPE Chemistry Unit 2 · 2011 · Paper 2State the names of the substances A and B in the suspension.
10. 3(e)(ii)2 marks· CAPE Chemistry Unit 2 · 2011 · Paper 2State what would be observed after a period of time in the conical flask and the beaker.
11. 3(e)(iii)1 mark· CAPE Chemistry Unit 2 · 2011 · Paper 2Give a reason why very high temperatures must be avoided during fermentation.
12. Q361 mark · multiple choice· CAPE Chemistry Unit 2 · 2012 · Paper 1Which of the following statements does NOT accurately describe a result of ethanol consumption?
13. 3(d)(i)5 marks· CAPE Chemistry Unit 2 · 2012 · Paper 2Describe, with the aid of equations, the steps involved in the fermentation of sucrose.
14. 3(d)(ii)3 marks· CAPE Chemistry Unit 2 · 2012 · Paper 2When beer is exposed to air, it produces a sharp smell and becomes 'sour'. Identify TWO possible compounds responsible for the sharp smell and state the type of reaction responsible.
15. Q341 mark · multiple choice· CAPE Chemistry Unit 2 · 2013 · Paper 1Fermentation of sugars to alcohol is controlled by an enzyme complex (mixture) known as
16. 6(b)(i)3 marks· CAPE Chemistry Unit 2 · 2014 · Paper 2Describe, with the aid of an equation, the reaction which occurs during the fermentation process in the production of ethanol.
17. 6(b)(ii)1 mark· CAPE Chemistry Unit 2 · 2014 · Paper 2State the process used to obtain ethanol of concentration above 95% from a fermentation batch.
18. 6(c)3 marks· CAPE Chemistry Unit 2 · 2014 · Paper 2Comment on the statement "The production of ethanol is a major contributor to the economies of Caribbean countries", stating TWO reasons in support.
19. Q311 mark · multiple choice· CAPE Chemistry Unit 2 · 2015 · Paper 1Which of the following processes is NOT involved in the manufacture of ethanol?
20. Q341 mark · multiple choice· CAPE Chemistry Unit 2 · 2015 · Paper 1Fermentation of sugars to alcohol is controlled by an enzyme complex (mixture) known as
21. Q351 mark · multiple choice· CAPE Chemistry Unit 2 · 2016 · Paper 1Which of the following environmental problems could be caused by the incomplete combustion of ethanol in a car engine?
22. Q441 mark · multiple choice· CAPE Chemistry Unit 2 · 2017 · Paper 1Which of the following processes is NOT involved in the manufacture of ethanol?
23. 3(b)(i)4 marks· Chemistry · Unit 2 Q3 3(b)(i)Using appropriate equations, show how starch can be converted to ethanol.
24. 3(b)(ii)2 marks· Chemistry · Unit 2 Q3 3(b)(ii)It is important to have safety requirements in an ethanol plant. State TWO properties of ethanol that are considered when making the ethanol plant safe.
25. 3(b)(iii)2 marks· Chemistry · Unit 2 Q3 3(b)(iii)Ethanol produced from sugar cane residues is used instead of petrol as a fuel in cars. State ONE advantage and ONE disadvantage of this practice. Advantage. Disadvantage.
26. 3(b)(iv)3 marks· Chemistry · Unit 2 Q3 3(b)(iv)Explain how the overconsumption of ethanol could have a negative economic impact on a society.
27. 3(c)(i)2 marks· Chemistry · Unit 2 Q3 3(c)(i)Write ONE equation that represents a step in this process.
28. 3(c)(ii)1 mark· Chemistry · Unit 2 Q3 3(c)(ii)Write TWO statements that support the idea that ethanol is a green resource.
29. 3(c)(iii)2 marks· Chemistry · Unit 2 Q3 3(c)(iii)State TWO factors that would preclude countries in the Caribbean from considering sugar beets as a viable source crop for ethanol production.
30. 3(c)(iv)2 marks· Chemistry · Unit 2 Q3 3(c)(iv)Describe the role of ethanol in this process.
31. 3(c)(v)3 marks· Chemistry · Unit 2 Q3 3(c)(v)Match EACH formulation using the letters A, B or C with the appropriate set of characteristics that best describes it.