CSEC Chemistry · January 2018 · Paper 1

52 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 choiceParticles of a solid cannot move about freely because the
2. Q21 mark · multiple choiceWhich of the following processes does NOT provide evidence in support of the particulate nature of matter?
3. Q31 mark · multiple choiceWhich of the following mixtures are arranged in order of INCREASING particle size?
4. Q41 mark · multiple choiceSulfuric acid is a stronger acid than ethanoic acid (acetic acid) in aqueous solution because sulfuric acid
5. Q51 mark · multiple choiceTwo particles have the following compositions: (i) 10 protons, 12 neutrons, 10 electrons (ii) 10 protons, 11 neutrons, 10 electrons Therefore, BOTH particles are
6. Q61 mark · multiple choiceIn the notation ^{35}_{17}\text{Cl} the number 17 represents the
7. Q71 mark · multiple choiceWhat mass of oxygen atoms contains the same number of moles as 112\text{ g} of sulfur atoms? [RAM: \text{O} = 16; \text{S} = 32]
8. Q81 mark · multiple choiceWhich of the following halogens is a liquid at room temperature?
9. Q91 mark · multiple choiceSodium chloride has a high melting point because
10. Q101 mark · multiple choiceA new element \text{R} shows chemical properties similar to the element sodium. What is the correct formula of a compound formed with \text{R} and sulfur?
11. Q111 mark · multiple choiceThe diagram above represents the arrangement of atoms in
12. Q121 mark · multiple choice'Ionic bond formation' results from the
13. Q131 mark · multiple choiceSulfur and oxygen are in the same group of the periodic table because
14. Q141 mark · multiple choiceAn acid can be defined as a
15. Q151 mark · multiple choiceA salt was heated with a certain base. The gas evolved turned moist red litmus paper blue. Which of the following ions does the salt contain?
16. Q161 mark · multiple choiceThe calcium ion has an oxidation number of +2 because the calcium atom has
17. Q171 mark · multiple choiceWhich of the following pairs of substances can represent solutions \text{X} and \text{Y}?
18. Q181 mark · multiple choiceThe relative atomic mass of carbon is 12 and that of oxygen is 16. Therefore, 88\text{ g} of carbon dioxide consists of
19. Q191 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…
20. Q201 mark · multiple choiceWhich of the following pairs of elements exhibit allotropy?
21. Q211 mark · multiple choiceIn which of the following processes is fractional distillation NOT used?
22. Q251 mark · multiple choiceWhich of the following substances reacts with an acid, liberating a gas which turns lime water 'milky'?
23. Q261 mark · multiple choiceFrom the energy profile diagram above, it can be said that the reactants
24. Q271 mark · multiple choiceThe oxidation number of silicon in \text{Na}_2\text{SiO}_3 is
25. Q281 mark · multiple choiceWhen a concentrated solution of sodium chloride is electrolysed using carbon electrodes,
26. Q291 mark · multiple choiceThe rate of a chemical reaction does NOT depend on the
27. Q301 mark · multiple choiceWhich of the following elements form an acidic oxide when burnt in air? I. Aluminium II. Carbon III. Nitrogen
28. Q311 mark · multiple choiceWhen a piece of magnesium ribbon is burnt in air, magnesium oxide is formed. It is then placed in water and tested with litmus solution, which turns blue. The above experiment shows that magnesium oxide is
29. Q321 mark · multiple choiceA suitable drying agent for a laboratory preparation of ammonia is
30. Q331 mark · multiple choiceWhich of the following metals will NOT displace hydrogen from dilute hydrochloric acid?
31. Q341 mark · multiple choicePotassium is a metal. From this information ONLY, it may be deduced that potassium
32. Q351 mark · multiple choiceAn alloy is
33. Q361 mark · multiple choiceWhich of the following gases forms white fumes when a glass rod, dipped in aqueous ammonia, is held in it?
34. Q391 mark · multiple choiceWhich of the following elements is an important constituent of chlorophyll?
35. Q401 mark · multiple choiceWhich of the following is/are true of non-metals? I. They are reducing agents. II. They are capable of replacing hydrogen in acids to form salts. III. They are generally poor conductors of electricity.
36. Q411 mark · multiple choiceThe main substances responsible for acid rain are
37. Q421 mark · multiple choiceWhich of the following elements is the MOST electropositive?
38. Q431 mark · multiple choiceA suitable reagent that could be used at stage IV is
39. Q441 mark · multiple choiceWhich of the following features is NOT true of all homologous series of compounds? The members of the series have
40. Q451 mark · multiple choiceCompounds I and II are known as the
41. Q461 mark · multiple choiceThe compound 2-bromobutane has a structural formula of
42. Q471 mark · multiple choiceWhich of the following about ethane is correct?
43. Q481 mark · multiple choiceWhich of the following substances would an alkane react?
44. Q491 mark · multiple choiceWhich of the above is the formula of a compound that undergoes a substitution reaction with bromine?
45. Q501 mark · multiple choiceWhich of the above is the formula of a compound which burns with a sooty flame?
46. Q511 mark · multiple choiceWhich of the following statements are true of alkanes and alkenes? I. Both burn in air to give carbon dioxide and water. II. Alkanes undergo substitution reactions whilst alkenes undergo addition reactions. III.…
47. Q541 mark · multiple choiceWhich of the following equations represents the fermentation of sugars, using glucose as the substrate?
48. Q561 mark · multiple choiceWhich of the following are reactions of ethanoic acid? I. It forms a salt with aqueous sodium hydroxide. II. It liberates carbon dioxide from a carbonate. III. It liberates hydrogen on contact with a strongly…
49. Q571 mark · multiple choiceWhich of the following compounds can decolorize potassium manganate(VII)?
50. Q581 mark · multiple choiceWhich of the following is NOT formed from condensation polymerization?
51. Q591 mark · multiple choiceIt is better to use soapless detergents for washing in hard water than it is to use soap because soapless detergents
52. Q601 mark · multiple choiceWhich of the following hydrocarbons is the MAJOR constituent of natural gas?