CSEC Chemistry · May/June 2017 · Paper 1

60 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 choiceWhich of the following processes provide evidence of the particulate nature of matter? I. Diffusion II. Filtration III. Osmosis
2. Q21 mark · multiple choiceWhich of the elements forms a chloride that is ionic in nature?
3. Q31 mark · multiple choiceWhich of the following elements has 7 electrons in its outer shell?
4. Q41 mark · multiple choiceAn atom has 20 electrons. When it ionizes, it has the same electronic configuration as
5. Q51 mark · multiple choiceWhich of the following elements does NOT form simple ions by gaining or losing electrons?
6. Q61 mark · multiple choiceSome calcium carbonate was reacted with excess dilute hydrochloric acid. The volume of carbon dioxide evolved was recorded and plotted against time. Which of the following graphs represents the reaction?
7. Q71 mark · multiple choiceWhich of the following represents a balanced equation for the reaction between aqueous silver nitrate and aqueous sodium chloride?
8. Q81 mark · multiple choiceWhich of the following acids will NOT form an acid salt?
9. Q91 mark · multiple choiceSodium reacts with water according to the equation 2\text{Na}(\text{s}) + 2\text{H}_2\text{O}(l) \rightarrow 2\text{NaOH}(\text{aq}) + \text{H}_2(\text{g}). (Molar volume of gas = 24\text{ litres at rtp}) The…
10. Q101 mark · multiple choiceWhich of the following oxides may show both acidic and basic properties?
11. Q111 mark · multiple choiceA mixture of copper(II) oxide and copper(II) sulfate is BEST separated by
12. Q121 mark · multiple choiceWhich of the following elements exhibits allotropy?
13. Q131 mark · multiple choiceWhich of the following statements is TRUE of an endothermic reaction?
14. Q141 mark · multiple choiceIn which of the following substances will electrolysis NOT occur when an electrical current is passed through it?
15. Q151 mark · multiple choiceWhich of the following are physical properties of ionic substances? I. High melting points II. Soluble in organic solvents III. Good conductors of electricity in the liquid state
16. Q161 mark · multiple choiceWhich of the following substances, when added to pure water, SIGNIFICANTLY increases the water's conductivity?
17. Q171 mark · multiple choiceA separating funnel can be used to separate a mixture of
18. Q181 mark · multiple choiceWhich of the above terms describes the structure of sodium chloride?
19. Q191 mark · multiple choiceWhich of the above terms describes the structure of copper?
20. Q201 mark · multiple choiceThe pH of fresh sugar cane juice, which is usually 5.0–5.5, can be changed to 7.5–8.0 for more efficient processing by adding
21. Q211 mark · multiple choiceWhich TWO of the following statements describe acid salts? I. Their anions cannot dissociate to give hydrogen ions. II. They form a normal salt when all replaceable hydrogen of the acid is removed. III. Their anions…
22. Q221 mark · multiple choiceA piece of metal is reacted with an acid to produce hydrogen gas. Which of the following procedures should be employed in order to increase the rate of the reaction? I. Increasing the temperature at which the reaction…
23. Q231 mark · multiple choiceThe atomic number of an element is defined as the number of
24. Q241 mark · multiple choiceWhich of the following halogens is a liquid at room temperature?
25. Q251 mark · multiple choiceWhich of the following statements is TRUE for the equation below? \text{Mg}(\text{s}) + \text{H}_2\text{SO}_4(\text{aq}) \rightarrow \text{MgSO}_4(\text{aq}) + \text{H}_2(\text{g})
26. Q261 mark · multiple choiceThe element that is used to determine the relative atomic mass of other elements is
27. Q271 mark · multiple choiceWhich test can be used to identify an acidic gas?
28. Q281 mark · multiple choiceWhich test can be used to identify ammonia gas?
29. Q291 mark · multiple choiceWhich of the following does NOT take place during electrolysis?
30. Q301 mark · multiple choiceWhich of the following diagrams illustrates the course of an exothermic reaction?
31. Q311 mark · multiple choiceAn atom with atomic structure ^{27}_{13}\text{X} contains
32. Q321 mark · multiple choiceWhich of the following molecular formulae represents the alcohol whose boiling point is 180\text{ }^\circ\text{C}?
33. Q331 mark · multiple choiceTo which homologous series does the following structure belong? \begin{array}{cc} \text{H} & \text{H} \\ | & | \\ \text{H}-\text{C}-\text{C}- \\ | & | \\ \text{H} & \text{H} \end{array} \begin{array}{l} \text{C} =…
34. Q341 mark · multiple choiceWhich of the following is the name of the compound \text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{OH}?
35. Q351 mark · multiple choiceWhich of the conversions above correctly represents the dehydration of ethanol?
36. Q361 mark · multiple choiceWhich of the conversions above requires manganate(VII)/\text{KMnO}_4?
37. Q371 mark · multiple choiceThe forward reaction is known as
38. Q381 mark · multiple choiceThe reverse reaction is known as
39. Q391 mark · multiple choice'Cracking' is the process of breaking down
40. Q401 mark · multiple choiceWhich of the following processes correctly describes the equation above? \text{RCOOH}(\text{aq}) + \text{NaOH}(\text{aq}) \rightarrow \text{RCOONa}(\text{aq}) + \text{H}_2\text{O}(l)
41. Q411 mark · multiple choiceAn organic substance, when reacted with bromine water, decolourizes it immediately. The substance is MOST likely an
42. Q421 mark · multiple choiceGlucose is converted to starch or cellulose by
43. Q431 mark · multiple choiceCompounds in a homologous series
44. Q441 mark · multiple choiceEthene reacts with hydrogen, chlorine and hydrogen chloride. These reactions are all examples of
45. Q451 mark · multiple choiceWhich of the following substances is NOT a polymer?
46. Q461 mark · multiple choiceWhich of the following methods is used for the extraction of aluminium?
47. Q471 mark · multiple choiceWhich of the following statements about sulfur are true? I. It is used in the vulcanization of rubber. II. It is used in the extraction of iron from iron ore. III. It is used in the manufacture of explosives.
48. Q481 mark · multiple choiceSoapless detergents are
49. Q491 mark · multiple choiceA solution, when treated with sulfur dioxide gas, becomes green. The solution contains potassium
50. Q501 mark · multiple choiceA suitable drying agent for the laboratory preparation of ammonia gas is
51. Q511 mark · multiple choiceWhen copper(II) carbonate is heated alone in a dry test tube, a gas is evolved and a black residue is formed. This gas is expected to
52. Q521 mark · multiple choiceAn element that is a nonmetal
53. Q531 mark · multiple choiceWhich of the following observations is likely when EXCESS aqueous ammonia is added to a solution of copper(II) sulfate and the mixture is shaken?
54. Q541 mark · multiple choiceWhich metal reacts vigorously with water to produce a strongly alkaline solution?
55. Q551 mark · multiple choiceWhich metal has an alloy which is used in the manufacture of aircraft?
56. Q561 mark · multiple choiceWhich of the following reactions is LEAST likely to occur?
57. Q571 mark · multiple choiceThe main substances responsible for 'acid rain' are
58. Q581 mark · multiple choiceWhich of the following observations is expected when aqueous silver nitrate is added to aqueous potassium chloride?
59. Q591 mark · multiple choiceWhich metal appears between copper and aluminium in the reactivity series and is an important component in haemoglobin?
60. Q601 mark · multiple choiceWhich of the following gases will give a positive test with dry cobalt chloride paper?