CSEC Chemistry · January 2017 · Paper 1

57 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 choiceIn which of the following situations is Brownian motion demonstrated?
2. Q21 mark · multiple choiceWhich of the properties above refer to a neutron?
3. Q31 mark · multiple choiceFrom the table below, which of the substances represented by the options, A, B, C and D, is MOST likely sodium chloride?
4. Q41 mark · multiple choiceWhich of the following compounds is soluble in cold water?
5. Q51 mark · multiple choiceWhich of the following oxides shows both acidic and basic properties?
6. Q61 mark · multiple choiceWhich of the following statements BEST describes the difference between an atom and an ion?
7. Q71 mark · multiple choiceWhat type of reaction does the equation represent?
8. Q81 mark · multiple choiceWhich of the following is classified as a neutral oxide?
9. Q91 mark · multiple choiceAn element, X, has an electron configuration 2, 8, 1. At which of the following positions is the element in the Periodic Table?
10. Q101 mark · multiple choiceWhen a compound is treated with concentrated hydrochloric acid, a greenish-yellow gas which bleaches moist red litmus paper is given off. The gas given off is
11. Q111 mark · multiple choiceWhen a compound is treated with concentrated hydrochloric acid, a greenish-yellow gas which bleaches moist red litmus paper is given off. The concentrated hydrochloric acid is acting as
12. Q121 mark · multiple choiceTwo solutions are to be mixed in order to demonstrate endothermic change. Which of the following techniques would be MOST appropriate?
13. Q131 mark · multiple choiceCrystals of sodium chloride are BEST described as
14. Q141 mark · multiple choiceEthanoic acid reacts with ethanol to form an ester and water. How many moles of ethanoic acid are required to produce 0.5\text{ mol} of the ester?
15. Q151 mark · multiple choiceThe diagram above represents the arrangement of atoms in
16. Q171 mark · multiple choiceIn which of the following compounds does hydrogen have a negative oxidation number?
17. Q181 mark · multiple choiceFrom which of the following substances can a solid be obtained by the process of sedimentation?
18. Q191 mark · multiple choiceWhich of the following gases shows NO reaction with moist litmus paper?
19. Q201 mark · multiple choiceWhich of the following techniques or processes may be used to separate a mixture of plant pigments?
20. Q211 mark · multiple choiceA solution of iron(II) sulfate was added until in EXCESS to a solution of barium nitrate. The precipitate produced was filtered off and water was added to the residue in the filter paper. The colour of the precipitate…
21. Q221 mark · multiple choiceA solution of iron(II) sulfate was added until in EXCESS to a solution of barium nitrate. The precipitate produced was filtered off and water was added to the residue in the filter paper. Water was added to the residue…
22. Q231 mark · multiple choiceThe atoms of element Y contain 19 electrons. The chemistry of element Y will be similar to
23. Q241 mark · multiple choiceWhich of the following halogens is a liquid at room temperature?
24. Q261 mark · multiple choiceWhich of the following reactions occurs between propene and bromine?
25. Q271 mark · multiple choice\text{FeCl}_2 and \text{FeCl}_3 are two chlorides of iron. Which of the following statements about these two chlorides of iron is/are TRUE? I. The percentage of iron by mass in the two chlorides is different. II.…
26. Q281 mark · multiple choiceWhen solid lead nitrate is heated, it decomposes giving off nitrogen(IV) oxide and oxygen. The BALANCED equation for this reaction is
27. Q291 mark · multiple choiceWhich of the following compounds yields a brown gas and a black solid residue on heating?
28. Q301 mark · multiple choiceWhich of the following metals are extracted from their ores by reduction of their oxides with carbon?
29. Q311 mark · multiple choiceDuring the electrolysis of aqueous copper(II) sulfate solution using inert electrodes, the ions migrating to the cathode are
30. Q321 mark · multiple choiceWhich of the diagrams illustrates bonding in chlorine?
31. Q331 mark · multiple choiceWhich of the diagrams illustrates bonding in oxygen?
32. Q341 mark · multiple choiceThe rate of a chemical reaction does NOT depend on the
33. Q351 mark · multiple choiceIn which reaction is ethene produced from ethanol?
34. Q361 mark · multiple choiceWhich reaction involves the boiling of a fat or oil with aqueous sodium hydroxide (caustic soda)?
35. Q371 mark · multiple choiceWhich acid functions as a dehydrating agent when concentrated?
36. Q381 mark · multiple choiceWhich acid reacts with copper to produce an acidic, reddish-brown gas?
37. Q391 mark · multiple choiceWhich of the following ionic equations involves oxidation?
38. Q401 mark · multiple choiceWhich of the following methods is used for the extraction of aluminium?
39. Q411 mark · multiple choiceWhich of the following correctly identifies the homologous series to which each compound belongs?
40. Q421 mark · multiple choiceWhich of the following metals neither reacts with water nor displaces hydrogen from dilute hydrochloric acid?
41. Q431 mark · multiple choiceThe existence of millions of organic compounds is due primarily to the ability of carbon to form I. multiple bonds II. ring structures III. branched chains
42. Q441 mark · multiple choiceWhich of the following aqueous solutions will produce a yellow precipitate with aqueous potassium iodide?
43. Q451 mark · multiple choiceIt was found that magnesium metal displaces zinc ions in zinc sulfate, while zinc metal displaces lead ions in lead sulfate. What is the order of reactivity, from most reactive to least reactive?
44. Q471 mark · multiple choiceWhich of the compounds has a pH less than 7?
45. Q481 mark · multiple choiceWhich of the following is produced when carbon monoxide reacts with iron(III) oxide?
46. Q491 mark · multiple choiceA piece of limestone is treated with dilute hydrochloric acid. Which of the following would be observed? I. Effervescence occurs. II. A gas is evolved with a pungent odour. III. A gas is evolved which turns limewater…
47. Q501 mark · multiple choiceWhich of the following structures represents a compound that can react with an alcohol to produce a sweet smelling liquid?
48. Q511 mark · multiple choiceSteel is often used in place of iron because it
49. Q521 mark · multiple choiceA solution has a pH of 1. This solution would be expected to react with
50. Q531 mark · multiple choiceWhich of the following is the reason for adding cryolite to pure alumina in the extraction of aluminium by electrolysis?
51. Q541 mark · multiple choiceWhat type of reaction occurs when zinc metal is added to copper sulfate solution?
52. Q551 mark · multiple choiceA formula of a gas with a distinctive colour is
53. Q561 mark · multiple choiceWhich of the following is a natural source of hydrocarbons?
54. Q571 mark · multiple choiceALL members of a homologous series have similar
55. Q581 mark · multiple choiceGlucose is converted to starch or cellulose by
56. Q591 mark · multiple choiceWhich of these compounds will react with bromine solution only if light is present?
57. Q601 mark · multiple choiceDuring the manufacture of ethanol by fermentation, the gas evolved