CSEC Chemistry · May/June 2016 · Paper 1

59 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 suggests that matter is made up of minute particles?
2. Q21 mark · multiple choiceThe arrangements of electrons in atoms of X and Y are 2, 8, 5 and 2, 8, 6 respectively. Which of the following represents X and Y? | | X | Y | |---|---|---| | (A) | Metal | Non-metal | | (B) | Non-metal | Non-metal | |…
3. Q31 mark · multiple choiceWhich of these elements forms a chloride that is ionic in nature?
4. Q41 mark · multiple choiceWhich of the following statements BEST describes the difference between an atom and an ion?
5. Q51 mark · multiple choiceWhich of the following features are true about the arrangement of electrons, protons and neutrons in an atom? I. Protons and neutrons are found in the nucleus. II. Electrons can be found anywhere outside the nucleus.…
6. Q61 mark · multiple choiceThe mass number of an element is the number of
7. Q71 mark · multiple choice^{24}_{11}\text{Na} and ^{23}_{11}\text{Na} are isotopes because they
8. Q81 mark · multiple choiceThe disadvantage of using a soapless detergent is that it
9. Q91 mark · multiple choiceWhich of the following aqueous solutions contains 1 mole of hydrogen ions?
10. Q101 mark · multiple choiceWhich of the following pairs of atoms has the same number of neutrons?
11. Q111 mark · multiple choiceFrom which of the following substances can a solid be obtained by the process of sedimentation?
12. Q121 mark · multiple choice'Ionic bond formation' results from the
13. Q131 mark · multiple choiceWhich of the following statements describes the effect of temperature on the solubility of solids in water?
14. Q141 mark · multiple choiceWhich of the following statements BEST describes the formation of a metallic bond?
15. Q151 mark · multiple choiceBarium is below calcium in Group II of the Periodic Table. When these metals react with water, the main difference in observation is the
16. Q161 mark · multiple choiceCovalent compounds can be formed between
17. Q171 mark · multiple choiceWhich set of elements forms molecules which contain two atoms?
18. Q181 mark · multiple choiceWhich set of elements has atoms with two electrons in their outer shells?
19. Q191 mark · multiple choiceA solution has a pH of 1. This solution would be expected to react with
20. Q201 mark · multiple choiceWhich of the following trends would be observed in moving from left to right across Period 3 of the Periodic Table? I. The melting points of the elements increase. II. The nature of the oxides becomes increasingly…
21. Q211 mark · multiple choiceWhich of the following terms BEST describes the oxide of a metal?
22. Q221 mark · multiple choiceWhich of the following techniques may be used to separate a mixture of plant pigments into their individual components?
23. Q231 mark · multiple choiceIn the electrolysis of aqueous copper(II) sulfate solution using copper electrodes, the anode
24. Q241 mark · multiple choiceThe equation for the reaction of silicon with chlorine is \text{Si(s)} + 2\text{Cl}_2\text{(g)} \rightarrow \text{SiCl}_4(l). In this reaction, silicon is the reducing agent and is
25. Q261 mark · multiple choice2.32 g of an oxide of iron were heated in dry hydrogen. When the reaction was completed, 1.68 g of iron were formed. [RAM: \text{Fe} = 56; \text{O} = 16] The oxide of iron was
26. Q271 mark · multiple choiceWhich of the following energy changes occurs during the breaking of a chemical bond?
27. Q281 mark · multiple choiceWhich of the following factors does NOT determine if a particular cation would be discharged during electrolysis?
28. Q291 mark · multiple choiceIn the following diagram, X represents the symbol of a positive ion: ^{40}_{20}\text{X}^{2+} Which of the following pairs represents the number of neutrons and electrons in X? | | Number of Neutrons | Number of…
29. Q301 mark · multiple choiceWhich of the following oxides react with both acids and bases?
30. Q311 mark · multiple choiceWhich of the following statements about electrolysis is NOT correct?
31. Q321 mark · multiple choiceWhich of the following statements are true of metals? I. They form solid chlorides. II. They generally form basic oxides. III. They conduct electricity only when molten.
32. Q331 mark · multiple choiceWhich of the following is a list of ALL the raw materials used in the extraction of iron?
33. Q341 mark · multiple choiceWhich of the following methods can be used in the extraction of aluminium?
34. Q351 mark · multiple choiceWhich of the following pairs of reagents will result in the formation of yellow precipitate?
35. Q361 mark · multiple choiceThe ability of an atom to form a cation increases
36. Q371 mark · multiple choiceWhich of the following procedures can be used to identify ammonia gas?
37. Q381 mark · multiple choiceIn which stage is the oxidation state of iron increased?
38. Q391 mark · multiple choiceWhich of the following aqueous solutions will produce a blue precipitate with aqueous sodium hydroxide?
39. Q401 mark · multiple choicePotassium is a metal. From this information ONLY, it may be deduced that potassium
40. Q411 mark · multiple choiceWhich of the metals is likely to form a soluble hydroxide?
41. Q421 mark · multiple choiceIn which of the following pairs of metals is the first metal MOST likely to displace the second metal from solution?
42. Q431 mark · multiple choiceWhich of the following statements about compounds in a homologous series is correct?
43. Q441 mark · multiple choiceWhich TWO of the following phrases correctly describe the compound shown? I. An alcohol II. A branched alkane III. Reactive with sodium IV. Not reactive with acidified potassium dichromate
44. Q451 mark · multiple choiceWhich of the following molecules could be obtained by cracking the alkane, \text{C}_8\text{H}_{18}? I. \text{C}_2\text{H}_4 II. \text{C}_6\text{H}_{14} III. \text{C}_{16}\text{H}_{34}
45. Q461 mark · multiple choiceThe MAJOR natural source of alkanes and alkenes is
46. Q471 mark · multiple choiceWhich of the following substances is a product of a halogenation reaction with methane?
47. Q481 mark · multiple choiceHow many isomers of butane \text{C}_4\text{H}_{10} are there?
48. Q491 mark · multiple choiceWhich of the following substances is an unsaturated hydrocarbon?
49. Q501 mark · multiple choiceWhich of the substances is a saturated hydrocarbon?
50. Q511 mark · multiple choiceWhich of the substances is a compound that is soluble in water?
51. Q521 mark · multiple choiceWhich of the substances is a compound used as a monomer in addition polymerization?
52. Q531 mark · multiple choiceThe functional group present in carboxylic acids is
53. Q541 mark · multiple choiceWhen a hydrocarbon molecule is cracked, which TWO smaller molecules are produced? I. An alkane II. An alkene III. An alcohol IV. An organic acid
54. Q551 mark · multiple choiceWith which of the following substances would an alkane react?
55. Q561 mark · multiple choiceWhich of the following structures represents a molecule of but-2-ene?
56. Q571 mark · multiple choiceWhich of the following features is NOT true of all homologous series of compounds? The members of the series have
57. Q581 mark · multiple choiceWhich TWO of the following substances can be produced DIRECTLY from ethanol? I. Ethene II. Ethane III. Sodium ethanoate IV. Ethyl ethanoate
58. Q591 mark · multiple choiceThe particles in a gas
59. Q601 mark · multiple choiceWhich of the following compounds can decolourize potassium manganate(VII)?