CAPE Chemistry Unit 2 · 2017 · Paper 1

43 multiple-choice items from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. Q11 mark · multiple choiceThe volatility of organic compounds depends on the strength of the intermolecular forces present. Which of the following compounds would be the MOST volatile?
2. Q21 mark · multiple choiceItems 2-3 refer to the following information about hydrocarbon Z. Hydrocarbon Z has a relative molecular mass of 84. When 0.1\text{ g} of Z was burnt in oxygen, 0.316\text{ g} of carbon dioxide and 0.128\text{ g}…
3. Q31 mark · multiple choiceItems 2-3 refer to the following information about hydrocarbon Z. Hydrocarbon Z has a relative molecular mass of 84. When 0.1\text{ g} of Z was burnt in oxygen, 0.316\text{ g} of carbon dioxide and 0.128\text{ g}…
4. Q41 mark · multiple choiceIn the reaction between ethene and bromine, which of the following statements about the reaction mechanism may be true? I. A carbocation forms in the rate determining step. II. A dative covalent bond forms between the…
5. Q51 mark · multiple choiceItem 5 refers to the following structural formula of a compound. The correct IUPAC name for the compound is
6. Q61 mark · multiple choiceWhich of the following reaction mechanisms occurs between benzene and concentrated \text{HNO}_3/\text{H}_2\text{SO}_4?
7. Q71 mark · multiple choiceItem 7 refers to the following incomplete equation. The product of the reaction above is
8. Q81 mark · multiple choiceDiazonium salts are useful in the synthesis of aromatic compounds. Which of the following compounds can be prepared from a diazonium salt?
9. Q91 mark · multiple choiceHydrogen cyanide can be added to ethanal but not to ethene because
10. Q101 mark · multiple choiceItem 10 refers to the following table which shows the results of an investigation to analyse an organic liquid, Z. The organic liquid Z is MOST likely
11. Q111 mark · multiple choice2-hydroxy-2-methylpropanoic acid can be formed from propanone in two steps, X and Y, as illustrated below. Which of the following statements about these steps is/are true? I. Step X involves nucleophilic addition. II.…
12. Q121 mark · multiple choiceNylon 66 can be made by the condensation polymerization of \text{H}_2\text{N}(\text{CH}_2)_6\text{NH}_2 and \text{HOOC}(\text{CH}_2)_4\text{COOH}. The repeat unit is
13. Q131 mark · multiple choiceWhich of the following statements is NOT true of addition polymerization?
14. Q141 mark · multiple choiceWhen butan-1-ol is dehydrated in a suitable piece of apparatus, the product is
15. Q151 mark · multiple choiceWhat would be OBSERVED when aqueous bromine is added to the following compound?
16. Q161 mark · multiple choiceItem 16 refers to the following diagram which represents a paper chromatogram of food dyes obtained using water as the solvent. A spot of a sample was originally placed at Z. It contained the components X and Y. Which…
17. Q171 mark · multiple choiceSpecies which absorb light in the UV-Vis region have I. saturated bonds II. unsaturated bonds III. non-bonded electron pairs
18. Q191 mark · multiple choiceTreatment of a 10.00\text{ g} sample containing a chloride salt with excess silver nitrate solution produced 8.08\text{ g} of silver chloride. (\text{Ag} = 108, \text{Cl} = 35.5) Which of the following…
19. Q201 mark · multiple choiceDifferent regions of the electromagnetic spectrum have different energies. Which of the following equations justifies the criteria for dividing the electromagnetic spectrum into regions according to wavelength? [f –…
20. Q211 mark · multiple choiceWhich of the following materials are commonly used stationary phases in chromatography?
21. Q221 mark · multiple choiceThe complex ion [\text{FeSCN}]^{2+} has a molar absorptivity (\varepsilon) of 7.0 \times 10^3\text{ dm}^3\text{ mol}^{-1}\text{ cm}^{-1}. The concentration of its solution, which gives an absorbance of 4.2 when…
22. Q231 mark · multiple choiceIn the infrared spectrum of an organic compound, a strong band is observed at 3000\text{ cm}^{-1}. The MOST likely explanation is that
23. Q241 mark · multiple choiceWhich of the following regions of the electromagnetic spectrum BEST matches the wavelength ranges of P, Q and R?
24. Q251 mark · multiple choiceWhich of the following processes occur in a mass spectrometer before isotopes can be detected? I. Acceleration II. Amplification III. Deflection
25. Q261 mark · multiple choiceIn the mass spectrometer a molecular ion is formed from a compound by the
26. Q271 mark · multiple choiceWhat transitions are expected from \text{C}_6\text{H}_5\text{NO}_2 in a UV-Vis spectrum?
27. Q281 mark · multiple choiceCompound X contains three components, P, Q and R. Component P is needed as the starting material for the synthesis of a new drug. Which of the following methods of chromatography is MOST suitable for obtaining a pure…
28. Q291 mark · multiple choiceWhich of the following bonds would show the STRONGEST absorption in IR spectroscopic analysis?
29. Q301 mark · multiple choiceIt takes 5\text{ cm}^3 of 1.4\text{ M NaOH} to neutralize 150\text{ cm}^3 of \text{HCl} with an unknown concentration. What was the original concentration of the acid?
30. Q311 mark · multiple choiceA sample of crude oil contains mainly \text{C}_8\text{H}_{18}. In which crude oil fraction would you expect to find this sample?
31. Q321 mark · multiple choiceWhich of the following factors is LEAST important in locating a company where iron is extracted from its ore?
32. Q331 mark · multiple choiceFrom the reaction given below, a high pressure would give the best yield, but in industry, a moderate pressure is used. \text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightleftharpoons 2\text{NH}_3(\text{g}) Why is…
33. Q341 mark · multiple choiceItem 34 refers to the following test for pollutants on a sample of water. What is the MOST appropriate inference based on the above observation?
34. Q351 mark · multiple choiceWhat 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
35. Q361 mark · multiple choiceItem 36 refers to the manufacture of chlorine by the electrolysis of brine using the diaphragm cell. The anode is made up of
36. Q371 mark · multiple choiceChlorine is MOST widely used for the manufacture of
37. Q381 mark · multiple choiceWhich of the following methods are used in water purification? I. Distillation II. Filtration III. UV radiation
38. Q391 mark · multiple choiceIn which layer of the atmosphere is ozone detrimental to human health and vegetation?
39. Q401 mark · multiple choiceIn one of the steps involved in the manufacture of sulfuric acid, sulfur dioxide and oxygen are mixed to form sulfur trioxide according to the following equation 2\text{SO}_2(\text{g}) + \text{O}_2(\text{g})…
40. Q411 mark · multiple choiceChlorine can be produced by the diaphragm method and mercury cell electrolysis. Which of the following statements is/are true regarding the diaphragm cell method? I. It is less energy efficient. II. It is more energy…
41. Q431 mark · multiple choiceWhich of the following is NOT manufactured using ammonia?
42. Q441 mark · multiple choiceWhich of the following processes is NOT involved in the manufacture of ethanol?
43. Q451 mark · multiple choiceThermal pollution results in