Cambridge International Examinations Cambridge International General Certificate of Secondary Education

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1 ambridge International Examinations ambridge International General ertificate of Secondary Education * * EMISTRY 0620/01 Paper 1 Multiple hoice (ore) For Examination from 2016 SPEIMEN PPER dditional Materials: Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or is recommended) 45 minutes RE TESE INSTRUTIONS FIRST Write in soft pencil. o not use staples, paper clips, glue or correction fluid. Write your name, entre number and candidate number on the nswer Sheet in the spaces provided unless this has been done for you. O NOT WRITE IN NY ROES. There are forty questions on this paper. nswer all questions. For each question there are four possible answers,, and. hoose the one you consider correct and record your choice in soft pencil on the separate nswer Sheet. Read the instructions on the nswer Sheet very carefully. Each correct answer will score one mark. mark will not be deducted for a wrong answer. ny rough working should be done in this booklet. copy of the Periodic Table is printed on page 18. Electronic calculators may be used. The syllabus is accredited for use in England, Wales and Northern Ireland as a ambridge International Level 1/Level 2 ertificate. This document consists of 18 printed pages. ULES 2014 [Turn over

2 2 1 The diagrams show the arrangement of particles in three different physical states of substance X. state 1 state 2 state 3 Which statement about the physical states of substance X is correct? Particles in state 1 vibrate about fixed positions. State 1 changes to state 2 by diffusion. State 2 changes directly to state 3 by condensation. The substance in state 3 has a fixed volume. 2 What is always true for a pure substance? It always boils at 0. It contains only one type of atom. It has a sharp melting point. It is solid at room temperature. 3 Element Y has a nucleon number of 1 and a proton number of. Which group in the Periodic Table does it belong to? I III VII VIII 4 The nucleon number and proton number of the lithium atom are shown by the symbol 3 7 Li. What is the correct symbol for the lithium ion in lithium chloride? 6 Li 2 6 Li Li Li 3 5 What is the relative molecular mass, M r, of NO 3? ULES /01/SP/16

3 6 The table shows the structure of different atoms and ions. 3 particle proton number nucleon number number of protons number of neutrons number of electrons Mg W 12 Mg 2+ X F 1 Y F 1 Z What are the values of W, X, Y and Z? W X Y Z The diagram shows the structure of an atom. + + n n key + n = proton = neutron = electron Which diagram shows the structure of an isotope of this atom? + + n n n n n n n n n ULES /01/SP/16 [Turn over

4 8 Which two elements react together to form an ionic compound? 4 element R T X Z electronic structure 2,4 2,8 2,8,1 2,8,7 R and T T and X X and Z Z and R Element X forms an acidic, covalent oxide. Which row shows how many electrons there could be in the outer shell of an atom of X? Which diagram does not show the outer shell electrons in the molecule correctly? l l l 11 The chemical formulae of two substances, W and X, are given. W Nal Si 3 O 8 X al 2 Si 2 O 8 Which statements are correct? 1 W and X contain the same amount of oxygen. 2 W contains three times as much silicon as X. 3 X contains twice as much aluminium as W. 1 and 2 1 and 3 2 and 3 1, 2 and 3 ULES /01/SP/16

5 12 The diagram shows apparatus used in an attempt to electroplate a metal ring with copper. 5 + battery bulb metal ring copper electrode aqueous copper(ii) sulfate (electrolyte) The experiment did not work. Which change is needed in the experiment to make it work? dd solid copper(ii) sulfate to the electrolyte. Increase the temperature of the electrolyte. Replace the copper electrode with a carbon electrode. Reverse the connections to the battery. 13 Three electrolysis cells are set up. Each cell has inert electrodes. The electrolytes are listed below. cell 1 cell 2 cell 3 aqueous sodium chloride dilute sulfuric acid molten lead(ii) bromide In which of these cells is a gas formed at both electrodes? 1 and 2 1 and 3 2 only 3 only ULES /01/SP/16 [Turn over

6 6 14 Which process is not exothermic? burning a fossil fuel obtaining lime from limestone radioactive decay of 235 U reacting hydrogen with oxygen 15 The apparatus shown can be used to measure the rate of some chemical reactions. gas syringe reaction mixture For which two reactions would this apparatus be suitable? reaction 1 reaction 2 reaction 3 reaction 4 gno 3 (aq) + l(aq) gl(s) + NO 3 (aq) 2 2 O 2 (aq) 2 2 O(I) + O 2 (g) MgO(s) + 2l(aq) Mgl 2 (aq) + 2 O(I) ZnO 3 (s) + 2l(aq) Znl 2 (aq) + O 2 (g) + 2 O(I) 1 and 2 1 and 3 2 and 4 3 and 4 ULES /01/SP/16

7 7 16 student investigates the rate of reaction between magnesium and excess sulfuric acid. The volume of hydrogen given off in the reaction is measured over time. The graph shows the results of two experiments, R and S. volume of hydrogen given off R S time Which change in conditions would cause the difference between R and S? catalyst is added in S. The acid is more concentrated in R than in S. The magnesium is less finely powdered in R than in S. The temperature in R is lower than in S. 17 When pink cobalt(ii) chloride crystals are heated they form steam and a blue solid. When water is added to the blue solid, it turns pink and becomes hot. Which terms describe the pink cobalt(ii) chloride crystals and the reactions? pink cobalt(ii) chloride aqueous anhydrous hydrated hydrated reactions irreversible reversible irreversible reversible ULES /01/SP/16 [Turn over

8 8 18 The red colour in some pottery glazes may be formed as a result of the reactions shown. heat uo 3 uo + O 2 uo + SnO u + SnO 2 These equations show that is oxidised and is reduced. Which substances correctly complete gaps 1 and 2 in the above sentence? 1 2 O 2 uo 3 uo SnO SnO 2 uo SnO uo 1 arbon dioxide gas reacts with aqueous sodium hydroxide. Which type of reaction takes place? decomposition fermentation neutralisation oxidation 20 n aqueous solution of the organic compound methylamine has a p greater than 7. Which statement about methylamine is correct? It neutralises an aqueous solution of sodium hydroxide. It reacts with copper(ii) carbonate to give carbon dioxide. It reacts with hydrochloric acid to form a salt. It turns blue litmus red. 21 solution contains barium ions and silver ions and one type of anion. What could the anion be? chloride only nitrate only sulfate only chloride or nitrate or sulfate ULES /01/SP/16

9 22 mixture containing two anions was tested and the results are shown below. test dilute nitric acid added dilute nitric acid added, followed by aqueous silver nitrate result effervescence of a gas which turned limewater milky yellow precipitate formed Which anions were present? carbonate and chloride carbonate and iodide sulfate and chloride sulfate and iodide 23 statine is an element in Group VII of the Periodic Table. It has only ever been produced in very small amounts. What are the likely properties of astatine? colour state reaction with aqueous potassium iodide black solid no reaction dark brown gas brown colour green solid no reaction yellow liquid brown colour ULES /01/SP/16 [Turn over

10 24 The diagram shows the positions of elements L, M, Q, R and T in the Periodic Table. These letters are not the chemical symbols of the elements. R T L M Q Which statement about the properties of these elements is correct? L reacts more vigorously with water than does M. L, M and Q are all metals. T exists as diatomic molecules. T is more reactive than R. 25 The table compares the properties of Group I elements with those of transition elements. Which entry in the table is correct? property Group I elements transition elements catalytic activity low high density high low electrical conductivity low low melting point high low 26 X is a monatomic gas. gas X Which statement about gas X is correct? X burns in air. X is coloured. X is unreactive. X will displace iodine from potassium iodide. ULES /01/SP/16

11 11 27 luminium is an important metal with many uses. Some of its properties are listed. 1 It is a good conductor of heat. 2 It has a low density. 3 It has an oxide layer that prevents corrosion. Which set of properties help to explain the use of aluminium for cooking and storing food? 1 only 1 and 2 only 2 and 3 only 1, 2 and 3 28 Which diagram could represent the structure of an alloy? ULES /01/SP/16 [Turn over

12 12 2 The table shows the results of adding three metals, P, Q and R, to dilute hydrochloric acid and to water. metal dilute hydrochloric acid water P Q R hydrogen produced no reaction hydrogen produced hydrogen produced no reaction no reaction What is the order of reactivity of the metals? most reactive least reactive P R Q P Q R R Q P R P Q 30 The table gives the composition of the atmosphere of four newly discovered planets. planet W X Y Z composition of atmosphere argon, carbon dioxide and oxygen argon, nitrogen and oxygen argon, carbon dioxide and methane methane, nitrogen and oxygen On which planets is the greenhouse effect likely to occur? W only W, X and Z W and Y only W, Y and Z ULES /01/SP/16

13 31 ompound X is heated with carbon using the apparatus shown. 13 compound X and carbon reaction tube heat limewater brown solid is formed in the reaction tube and the limewater turns cloudy. What is compound X? calcium oxide copper(ii) oxide magnesium oxide sodium oxide 32 The diagram shows some reactions of substance Y. heat with an ammonium compound ammonia substance Y heat with dilute acid a salt Which type of substance is Y? an alcohol a base a catalyst a metal ULES /01/SP/16 [Turn over

14 14 33 test-tube containing damp iron wool is inverted in water. fter three days, the water level inside the test-tube has risen. damp iron wool water Which statement explains this rise? Iron oxide has been formed. Iron wool has been reduced. Oxygen has been formed. The temperature of the water has risen. 34 Greenhouse gases may contribute to climate change. Two of these gases are emitted into the atmosphere as a result of processes within animals. Gas..1.. is produced by process Gas..2.. is produced by process Which row correctly complete gaps 1, 2, 3 and 4? O 2 6 digestion respiration O 2 6 respiration digestion O 2 4 digestion respiration O 2 4 respiration digestion ULES /01/SP/16

15 15 35 To grow rose plants, a fertiliser containing nitrogen, phosphorus and potassium is often used. For the best rose flowers, the fertiliser should contain a high proportion of potassium. Which fertiliser is best for producing rose flowers? fertiliser proportion by mass N P K ir containing an acidic impurity was neutralised by passing it through a column containing substance X. substance X acidic air neutralised air What is substance X? calcium oxide sand sodium chloride concentrated sulfuric acid ULES /01/SP/16 [Turn over

16 16 37 In an oil refinery, petroleum is separated into useful fractions. The diagram shows some of these fractions. pre-heat 400 refinery gases gasoline X diesel oil Y Z What are fractions X, Y and Z? X Y Z fuel oil bitumen paraffin (kerosene) fuel oil paraffin (kerosene) bitumen paraffin (kerosene) bitumen fuel oil paraffin (kerosene) fuel oil bitumen 38 The structures of three compounds are shown. Why do these substances all belong to the same homologous series? They all contain an even number of carbon atoms. They all contain the same functional group. They are all hydrocarbons. They are all saturated. 3 Which bond is not in a molecule of ethanoic acid? O =O = O ULES /01/SP/16

17 17 40 Which structure is incorrect? O O O ULES /01/SP/16

18 18 Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (ULES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. ambridge International Examinations is part of the ambridge ssessment Group. ambridge ssessment is the brand name of University of ambridge Local Examinations Syndicate (ULES), which is itself a department of the University of ambridge. ULES /01/SP/16