CSEC Chemistry · May/June 2010 · Paper 1
41 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.
- Q11 mark · multiple choiceSulphur and oxygen are in the same group of the periodic table because
- Q21 mark · multiple choiceWhich of the following statements is true about the particles in a gas?
- Q31 mark · multiple choiceX and Y are isotopes. Which of the following would be true for the atoms X and Y? I. They have the same number of electrons. II. They have the same number of protons. III. They have different numbers of neutrons.
- Q51 mark · multiple choiceAn isotope of lead can be represented by the following symbol
^{207}_{82}\text{Pb}. From this symbol, it can be deduced that one atom of the isotope has - Q61 mark · multiple choiceWhat mass of oxygen gas contains the same number of moles as
56\text{ g}of sulphur? (Relative atomic mass:\text{S} = 32,\text{O} = 16) - Q71 mark · multiple choice
2\text{ g}of magnesium are reacted with excess dilute acid according to the equation\text{Mg(s)} + 2\text{H}^+\text{(aq)} \rightarrow \text{Mg}^{2+}\text{(aq)} + \text{H}_2\text{(g)}(Relative atomic mass of… - Q81 mark · multiple choiceThe values of
xandyin the equationx\text{ KOH} + 3\text{ Br}_2 \rightarrow y\text{ KBr} + \text{KBrO}_3 + 3\text{ H}_2\text{O}are - Q91 mark · multiple choiceThe mass concentration of a potassium chloride solution is
60\text{ g}\cdot\text{dm}^{-3}. What is the mass of potassium chloride in25\text{ cm}^3of this solution? - Q101 mark · multiple choiceThe number of shared electron pairs in a methane molecule is
- Q111 mark · multiple choiceItems 11-13 refer to the information in the table below. Match each item below with ONE of the options, A, B, C, D above. Each option may be used more than once, once or not at all. Simple molecular structure
- Q121 mark · multiple choiceItems 11-13 refer to the information in the table below. Match each item below with ONE of the options, A, B, C, D above. Each option may be used more than once, once or not at all. Ionic structure
- Q141 mark · multiple choiceGraphite can be used as a lubricant because of
- Q161 mark · multiple choiceWhen a saturated solution of copper(II) sulphate is cooled, crystals of copper(II) sulphate-5-water begin to form because solubility of copper(II) sulphate-5-water
- Q171 mark · multiple choiceA separating funnel can be used to separate a mixture of
- Q181 mark · multiple choiceIn the portion of the periodic table indicated below, which of the elements, A, B, C and D, is MOST easily ionized?
- Q221 mark · multiple choiceA substance P, has the following properties. I. It is insoluble in water. II. A gas is evolved when P is added to dilute acids. III. P gives off a gas when heated. P is MOST likely
- Q231 mark · multiple choiceA specific base reacts with a salt to produce a gas which turns damp red litmus paper blue. Which of the following ions does the salt contain?
- Q241 mark · multiple choiceWhich of the following salts can be prepared by mixing two solutions and then filtering? I. Barium sulphate II. Calcium nitrate III. Silver chloride IV. Ammonium carbonate
- Q251 mark · multiple choiceA solution, when treated with the gas sulphur dioxide, becomes green. Which of the following does the solution contain?
- Q271 mark · multiple choiceWhich of the following pairs of reactions would you expect to take place?
I.
\text{Zn(s)} + \text{Mg}^{2+}\text{(aq)} \rightarrow \text{Mg(s)} + \text{Zn}^{2+}\text{(aq)}II.… - Q291 mark · multiple choiceDuring the electrolysis of aqueous copper(II) sulphate solution using inert electrodes, the ions migrating to the cathode are
- Q301 mark · multiple choiceItem 30 refers to the following graph which shows the changes in temperature with time, for a substance heated until no further physical change takes place. At which portion of the curve, I, II, III and IV, is the…
- Q321 mark · multiple choiceWhat quantity of electricity passes through the electrolyte when a current of
100\text{ A}flows for 10 minutes? - Q331 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…
- Q341 mark · multiple choiceItem 34 refers to the graph below which shows the rate of reaction for different particle sizes of the same mass of magnesium, reacting with dilute acid. Which line on the graph, I, II, III or IV, would BEST represent…
- Q361 mark · multiple choiceWhen crystals of potassium nitrate are dissolved in water, the temperature of the solution decreases because
- Q381 mark · multiple choiceWhich of the following compounds is NOT a member of the alkene series?
- Q391 mark · multiple choiceItems 39 - 40 refer to the following options.
(A)
\text{C}_2\text{H}_4(B)\text{C}_2\text{H}_6(C)\text{CH}_3(\text{CH}_2)_2\text{COOH}(D)\text{CH}_3(\text{CH}_2)_3\text{OH}Match each item below with ONE… - Q401 mark · multiple choiceItems 39 - 40 refer to the following options.
(A)
\text{C}_2\text{H}_4(B)\text{C}_2\text{H}_6(C)\text{CH}_3(\text{CH}_2)_2\text{COOH}(D)\text{CH}_3(\text{CH}_2)_3\text{OH}Match each item below with ONE… - Q411 mark · multiple choiceIsomerism is a property shown by compounds possessing
- Q431 mark · multiple choiceWhich of the following reactions correctly represents the dehydration of ethanol?
- Q441 mark · multiple choiceWhich of the following structures represents an unsaturated hydrocarbon?
- Q451 mark · multiple choiceWhen ethanoic acid and ethanol react to form ethyl-ethanoate, the catalyst used is
- Q461 mark · multiple choiceWhen hydrocarbons with 5 to 12 carbon atoms are cracked, which of the following can be obtained? I. Ethene II. Propene III. Methane IV. Petroleum
- Q471 mark · multiple choiceWhich of the following statements are true for the fermentation of carbohydrates to produce ethanol?
I. The enzymes are obtained from yeast.
II. The reaction mixture is kept at
50\ ^\circ\text{C}. III. Carbon dioxide… - Q491 mark · multiple choiceSodium chloride solution is used in the laboratory preparation of soap to
- Q501 mark · multiple choiceWhich of the following statements about polymers are true? I. Polymers are long-chain molecules made by joining together a large number of monomer units. II. Condensation polymers are generally made up from one type of…
- Q511 mark · multiple choiceWhich of the following compounds are naturally occurring? I. Terylene II. Nylon III. Fats IV. Proteins
- Q521 mark · multiple choiceWhich of the following can decolourize potassium manganate(VII)?
- Q531 mark · multiple choiceItem 53 refers to the following structures. Which structures represent branched alkanes?
- Q551 mark · multiple choiceWhich of the following can be extracted by chemical reduction?