Aluminium · CAPE Chemistry Unit 2

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

1. 6(b)(ii)1 mark· CAPE Chemistry Unit 2 · 2007 · Paper 2State the acid/base character of Al2O3.
2. 3(e)(i)1 mark· CAPE Chemistry Unit 2 · 2009 · Paper 2State the colour of the bauxite ore at A.
3. 3(e)(ii)1 mark· CAPE Chemistry Unit 2 · 2009 · Paper 2Name the reagent, B.
4. 3(e)(iii)2 marks· CAPE Chemistry Unit 2 · 2009 · Paper 2State the colour and appearance of the aluminium hydroxide at C.
5. 3(e)(iv)1 mark· CAPE Chemistry Unit 2 · 2009 · Paper 2State ONE process occurring at D.
6. Q321 mark · multiple choice· CAPE Chemistry Unit 2 · 2012 · Paper 1Along with silicon dioxide, which of the following compounds constitutes the main impurities of bauxite?
7. 6(a)7 marks· CAPE Chemistry Unit 2 · 2013 · Paper 2Describe the Bayer process for extracting aluminium oxide from bauxite ore. Include two balanced chemical equations in your description.
8. 6(b)(i)1 mark· CAPE Chemistry Unit 2 · 2013 · Paper 2Name an environmental pollutant produced as a by-product during the extraction of alumina from bauxite.
9. 6(b)(ii)2 marks· CAPE Chemistry Unit 2 · 2013 · Paper 2Describe two environmental consequences caused by the named pollutant in (b)(i).
10. 6(c)(i)2 marks· CAPE Chemistry Unit 2 · 2013 · Paper 2Write balanced ionic half-equations for the reactions occurring at the cathode and the anode during the Hall-Héroult electrolytic process.
11. 6(c)(ii)a)1 mark· CAPE Chemistry Unit 2 · 2013 · Paper 2Outline one reason for the high economic/energy cost associated with the extraction of aluminium by electrolysis.
12. 6(c)(ii)b)2 marks· CAPE Chemistry Unit 2 · 2013 · Paper 2Suggest two reasons why the recycling of aluminium is important.
13. Q311 mark · multiple choice· CAPE Chemistry Unit 2 · 2014 · Paper 1Along with silicon dioxide, which of the following compounds constitutes the main impurities of bauxite?
14. Q291 mark · multiple choice· CAPE Chemistry Unit 2 · 2015 · Paper 1Which of the following compounds are the MAIN impurities in bauxite? I. Iron(III) oxide II. Lead oxide III. Silicon(IV) oxide IV. Calcium carbonate
15. Q311 mark · multiple choice· CAPE Chemistry Unit 2 · 2016 · Paper 1The extraction of aluminium is an electrolytic process where the electrolyte used is purified ore dissolved in cryolite, \text{Na}_3\text{AlF}_6. Which of the following descriptions is true for the use of cryolite?
16. Q321 mark · multiple choice· CAPE Chemistry Unit 2 · 2016 · Paper 1Which of the following substances are the MAIN impurities in bauxite? I. Iron(III) oxide II. Calcium oxide III. Silicon(IV) oxide
17. 6(a)(i)4 marks· CAPE Chemistry Unit 2 · 2016 · Paper 2Describe the process involved in the production of aluminium from alumina. (Include appropriate equations.)
18. 6(a)(ii)1 mark· CAPE Chemistry Unit 2 · 2016 · Paper 2State the effect of the production of oxygen on the process.
19. 6(a)(iii)1 mark· CAPE Chemistry Unit 2 · 2016 · Paper 2Write an equation to represent the effect in (a)(ii).
20. 6(d)3 marks· CAPE Chemistry Unit 2 · 2016 · Paper 2Suggest THREE ways in which recycled aluminium can be used.
21. Q351 mark · multiple choice· CAPE Chemistry Unit 2 · 2017 · Paper 1What is the product of the following (unbalanced) equation? \text{Al}_2\text{O}_3\cdot\text{H}_2\text{O (s)} + \text{H}_2\text{O (l)} + \text{OH}^-\text{(aq)} \rightarrow
22. 3(a)(i)3 marks· Chemistry · Unit 2 Q3 3(a)(i)Identify EACH of the following components in Figure 6: A, B, C, D, E.
23. 3(a)(ii)3 marks· Chemistry · Unit 2 Q3 3(a)(ii)Write the formulae of the substances in the mixture F in Figure 6.
24. 3(a)(iii)2 marks· Chemistry · Unit 2 Q3 3(a)(iii)Write an equation to represent the reaction at EACH electrode during the production of aluminium.
25. 3(c)(i)7 marks· Chemistry · Unit 2 Q3 3(c)(i)With the aid of balanced equations, briefly explain how aluminium oxide is separated from bauxite ore.
26. 3(c)(ii)4 marks· Chemistry · Unit 2 Q3 3(c)(ii)Aluminium oxide is electrolysed to obtain aluminium (smelting). Write the main reactions occurring at the anode and cathode.
27. 3(c)(iii)2 marks· Chemistry · Unit 2 Q3 3(c)(iii)Describe any ONE impact of the production of alumina on the environment.