CSEC Chemistry · May/June 2011 · Paper 1

48 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 phrases illustrates diffusion?
2. Q21 mark · multiple choiceThe particle X is an atom of
3. Q31 mark · multiple choiceWhich of the following particles represents an anion?
4. Q41 mark · multiple choiceWhich of the following pairs are isotopes?
5. Q51 mark · multiple choiceWhich of the following ions requires the LARGEST number of moles of electrons to liberate one mole of it?
6. Q71 mark · multiple choiceThe oxidation state of an ion of Element Z would MOST probably be
7. Q81 mark · multiple choiceWhich of the following mixtures can be referred to as a standard solution?
8. Q91 mark · multiple choiceWhen solid lead nitrate is heated, it decomposes giving off nitrogen (IV) oxide and oxygen. The balanced equation for this reaction is
9. Q101 mark · multiple choiceWhich of the following compounds has the GREATEST percentage by mass of carbon present in one mole? (M_r = \text{relative molecular mass}; relative atomic mass: \text{H} = 1; \text{C} = 12; \text{O} = 16)
10. Q111 mark · multiple choiceA metallic bond is formed when
11. Q121 mark · multiple choiceAn example of a substance with a macromolecular structure is
12. Q141 mark · multiple choiceGraphite is used as an electrode because it
13. Q151 mark · multiple choiceWhich of the following statements about covalent compounds are TRUE? I. They are mainly solids. II. They usually have low melting and boiling points. III. They are usually insoluble in water. IV. They contain only ions.
14. Q161 mark · multiple choiceA piece of calcium was added to some distilled water in a container. The gas produced would be expected to
15. Q171 mark · multiple choiceA separating funnel can be used to separate a mixture of
16. Q181 mark · multiple choiceOne way in which hydrogen resembles the Group 7 elements is that hydrogen
17. Q201 mark · multiple choiceSulphuric acid is a stronger acid than ethanoic acid (acetic acid) in aqueous solution because sulphuric acid
18. Q211 mark · multiple choiceWhich of the following is NOT a normal salt?
19. Q221 mark · multiple choiceThe ionic equation for the reaction between an acid and a carbonate may be represented as
20. Q231 mark · multiple choiceWhich of the compounds is reduced?
21. Q241 mark · multiple choiceWhich of the compounds is the oxidising agent?
22. Q251 mark · multiple choiceAcidified potassium manganate (VII) is usually used as
23. Q271 mark · multiple choiceIn which of the following does hydrogen have a negative oxidation number?
24. Q281 mark · multiple choiceIf solutions containing one mole of solute per \text{dm}^3 of aqueous solution are investigated, which solution should cause the bulb to glow BRIGHTEST?
25. Q291 mark · multiple choiceWhich of the following will NOT conduct electricity?
26. Q301 mark · multiple choiceA current of 5 amperes was passed for 193 seconds through a solution of copper (II) sulphate using copper electrodes. The mass of copper that would be gained at the (Relative atom mass of \text{Cu} = 64; Faraday…
27. Q311 mark · multiple choiceWhich of the following elements does NOT react with \text{H}^+(\text{aq}) ions to give hydrogen gas?
28. Q321 mark · multiple choiceWhich of the following statements BEST characterises a catalyst?
29. Q331 mark · multiple choiceWhich of the following statements would be TRUE of exothermic reactions? I. Heat energy is absorbed from the surroundings. II. Heat energy is given out to the surroundings. III. The products possess less energy than the…
30. Q341 mark · multiple choiceThe reaction occurring at the cathode during the electrolysis of copper sulphate using inert electrodes is given by the equation
31. Q351 mark · multiple choiceWhich of the following substances conducts an electric current but remains chemically unchanged?
32. Q371 mark · multiple choiceThe concentrated hydrochloric acid is acting as
33. Q381 mark · multiple choiceThe gas given off is
34. Q391 mark · multiple choiceA recently discovered element is thought to be a metal. Which of the following physical properties would BEST confirm this?
35. Q401 mark · multiple choiceWhich compound is one of the MAIN substances responsible for the formation of acid rain?
36. Q431 mark · multiple choiceOver time, aluminium articles do not deteriorate in air as do iron articles. Which of the following statements gives the CORRECT reason?
37. Q441 mark · multiple choiceWhich of the following elements is MOST electropositive?
38. Q451 mark · multiple choiceAmmonia may be produced in the laboratory by heating a mixture of ammonium chloride and
39. Q461 mark · multiple choiceWhich of the following substances is the catalyst used in the manufacture of sulphuric acid by the contact process?
40. Q471 mark · multiple choiceThe compound ethene is described as being unsaturated. This means that the
41. Q491 mark · multiple choiceWhich of the following pairs of structural formulae are isomers of \text{C}_4\text{H}_{10}? I. \text{H}_3\text{C}-\text{CH}_2-\text{CH}_2-\text{CH}_3 II.…
42. Q501 mark · multiple choiceEthyl ethanoate and fats are classified as esters. From this information it can be deduced that they BOTH
43. Q511 mark · multiple choiceWhich of the organic compounds undergoes addition reactions?
44. Q521 mark · multiple choiceWhich of the organic compounds is immiscible with water and is sweet smelling?
45. Q531 mark · multiple choiceWhich of the organic compounds is dehydrated by concentrated sulphuric acid to produce a gas which decolourises bromine?
46. Q551 mark · multiple choiceWhich of the following processes CORRECTLY describes the reaction above?
47. Q571 mark · multiple choiceThe process by which large molecules of hydrocarbons are broken up into smaller molecules is called
48. Q601 mark · multiple choiceWhich of the following types of polymer may be derived from compounds like the one below? \begin{array}{c} \text{H} \\ | \\ \text{H}-\text{C}-\text{COOH} \\ | \\ \text{NH}_2 \end{array}