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 0620/12 Paper 1 Multiple hoice (ore) May/June 2016 * * dditional Materials: RE TESE INSTRUTIONS FIRST Multiple hoice nswer Sheet Soft clean eraser Soft pencil (type or is recommended) 45 Minutes 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 20. Electronic calculators may be used. The syllabus is approved for use in England, Wales and Northern Ireland as a ambridge International Level1/Level 2 ertificate. This document consists of 17 printed pages and 3 blank pages. I16 06_0620_12/3RP ULES 2016 [Turn over

2 1 In which changes do the particles move further apart? 2 W X gas liquid solid Y Z W and X W and Z X and Y Y and Z 2 In the chromatography experiment shown, which label represents the solvent front? 3 One of the instructions for an experiment reads as follows. What is the best piece of apparatus to use? Quickly add 50 cm 3 of acid. a burette a conical flask a measuring cylinder a pipette 4 Two statements about diamond are given. 1 iamond has a giant three-dimensional covalent structure of carbon atoms. 2 iamond is one of the hardest substances known. Which is correct? oth statements are correct and statement 1 explains statement 2. oth statements are correct but statement 2 does not explain statement 1. Statement 1 is correct but statement 2 is incorrect. Statement 2 is correct but statement 1 is incorrect. ULES /12/M/J/16

3 5 The table shows the electronic structure of four atoms. 3 atom electronic structure W 2,8,1 X 2,8,4 Y 2,8,7 Z 2,8,8 Which two atoms combine to form a covalent compound? W and X W and Y X and Y X and Z 6 n atom of element Q contains 19 electrons, 19 protons and 20 neutrons. What is Q? calcium potassium strontium yttrium 7 Lithium is in Group I of the Periodic Table. Nitrogen is in Group V of the Periodic Table. Lithium reacts with nitrogen to form the ionic compound lithium nitride. What happens to the electrons when lithium atoms and nitrogen atoms form ions? lithium atoms each lithium atom loses one electron to form a Li + ion each lithium atom loses one electron to form a Li + ion each lithium atom gains one electron to form a Li ion each lithium atom gains one electron to form a Li ion nitrogen atoms each nitrogen atom gains three electrons to form an N 3 ion each nitrogen atom gains five electrons to form an N 5 ion each nitrogen atom loses three electrons to form an N 3+ ion each nitrogen atom loses five electrons to form an N 5+ ion ULES /12/M/J/16 [Turn over

4 8 The equation shows the reaction between magnesium and sulfuric acid. [ r :, 1; O, 16; Mg, 24; S, 32] 4 Mg + 2 SO 4 MgSO In this reaction, which mass of magnesium sulfate is formed when 6 g of magnesium react with excess sulfuric acid? The diagram shows an electrical cable. plastic coating metal core Which statement about the substances used is correct? The coating is plastic because it conducts electricity well. The core is copper because it conducts electricity well. The core is copper because it is cheap and strong. The core is iron because it is cheap and strong. 10 What are the products at the electrodes when dilute sulfuric acid is electrolysed using inert electrodes? anode cathode hydrogen oxygen oxygen hydrogen sulfur oxygen sulfur dioxide hydrogen ULES /12/M/J/16

5 11 The energy level diagram for the reaction between magnesium and hydrochloric acid is shown. 5 Mg + 2l energy Mgl Which statement about the reaction is not correct? Energy is given out during the reaction. The products are at a lower energy level than the reactants. The reaction is endothermic. The temperature increases during the reaction. 12 The diagram shows some properties that substances may have. To which labelled part of the diagram does 235 U belong? compound used as an energy source radioactive ULES /12/M/J/16 [Turn over

6 6 13 liquid X reacts with solid Y to form a gas. Which two diagrams show suitable methods for investigating the rate (speed) of the reaction? 1 2 cotton wool cotton wool X Y X Y balance 3 4 stopper stopper X Y X Y balance 1 and 3 1 and 4 2 and 3 2 and 4 ULES /12/M/J/16

7 7 14 The results of two separate reactions between excess calcium carbonate and hydrochloric acid are shown. second reaction volume of gas collected first reaction 0 0 time Which statement explains the differences between the reactions? More calcium carbonate was used in the second reaction. The same volume of more concentrated acid was used in the second reaction. The second reaction was allowed to react for longer. The temperature was higher in the second reaction. 15 The equations below all show redox reactions. Fe 2 O 3 + 3O 2Fe + 3O 2 2ZnO + 2Zn + O 2 Fe 2 O 3 + 2l l 2O 3 + 2Fe 2O + 2NO 2O 2 + N 2 Which oxide is oxidised in these reactions? Fe 2 O 3 O ZnO NO 16 In which reaction is the colour change from blue to white? heating hydrated cobalt(ii) chloride heating hydrated copper(ii) sulfate adding water to anhydrous cobalt(ii) chloride adding water to anhydrous copper(ii) sulfate ULES /12/M/J/16 [Turn over

8 8 17 Which statements are properties of an acid? 1 reacts with ammonium sulfate to form ammonia 2 turns red litmus blue Part of the Periodic Table is shown. Which element forms an acidic oxide? 19 What is the correct sequence of steps for the preparation of a pure sample of copper(ii) sulfate crystals from copper(ii) oxide and sulfuric acid? dissolving crystallisation evaporation filtration dissolving evaporation filtration crystallisation dissolving filtration crystallisation evaporation dissolving filtration evaporation crystallisation ULES /12/M/J/16

9 20 The following tests are carried out on an aqueous solution of salt X. 9 test sodium hydroxide solution is added a small piece of aluminium foil is then added to the mixture and the mixture is heated observation a green precipitate is formed which dissolves in excess a gas is given off which turns damp, red litmus paper blue What is X? aluminium nitrate ammonium sulfate chromium(iii) nitrate iron(ii) nitrate 21 Where in the Periodic Table is the metallic character of the elements greatest? left or right side of a period at the top or bottom of a group left bottom left top right bottom right top 22 Rubidium is a Group I metal. Which statement about rubidium is not correct? It has a higher melting point than lithium. It has one electron in its outer shell. It reacts vigorously with water. It reacts with chlorine to form rubidium chloride, Rbl. ULES /12/M/J/16 [Turn over

10 23 The table gives information about four elements, P, Q, R and S. 10 melting point in electrical conductivity of element when solid density in g / cm 3 colour of iodide of element P 98 good 0.97 white Q 39 good red R 1410 poor 2.33 colourless S 1535 good 7.87 green Which elements could be transition elements? P, Q and S Q and S only R and S only S only 24 Part of the Periodic Table is shown. Which element is a gas that does not form a compound with potassium? 25 Which property is not considered a typical metallic property? good conductor of heat low melting point malleable (can be hammered into shape) strong ULES /12/M/J/16

11 26 Some chemical properties of three metals W, X and Y and their oxides are shown. 11 metal reaction with steam reaction with dilute hydrochloric acid reaction of metal oxide with carbon W reacts reacts reacts X no reaction no reaction reacts Y reacts reacts no reaction What is the order of reactivity of these metals, most reactive first? W Y X X Y W Y W X Y X W 27 Iron from a blast furnace is treated with oxygen and with calcium oxide to make steel. Which substances in the iron are removed? oxygen removes calcium oxide removes carbon acidic oxides carbon basic oxides iron acidic oxides iron basic oxides 28 opper is sometimes used to make cooking utensils. saucepan gas ring Three properties of copper are given. 1 corrosion resistant 2 good conductor of electricity 3 good conductor of heat Which properties make copper a suitable metal for making cooking utensils? 1 and 3 1 only 2 and 3 2 only ULES /12/M/J/16 [Turn over

12 29 The diagram shows an experiment to investigate how paint affects the rusting of iron. 12 iron P Q painted iron air water What happens to the water level in tubes P and Q? tube P tube Q falls rises no change rises rises falls rises no change 30 new planet has been discovered and its atmosphere has been analysed. atmosphere planet The table shows the composition of its atmosphere. gas percentage by volume carbon dioxide 4 nitrogen 72 oxygen 24 Which gases are present in the atmosphere of the planet in a higher percentage than they are in the Earth s atmosphere? carbon dioxide and oxygen carbon dioxide only nitrogen and oxygen nitrogen only ULES /12/M/J/16

13 13 31 Which of the following are tests for water? 1 It turns anhydrous copper(ii) sulfate blue. 2 It boils at It turns anhydrous cobalt(ii) chloride paper blue. 1, 2 and 3 1 and 2 only 1 and 3 only 2 and 3 only 32 Sulfur dioxide, carbon monoxide and oxides of nitrogen are common gaseous pollutants found in the air. Which pollutants contribute to acid rain? carbon monoxide and sulfur dioxide oxides of nitrogen and sulfur dioxide oxides of nitrogen only sulfur dioxide only 33 Which compound is not used as a fertiliser? ammonium phosphate ammonium sulfate calcium carbonate potassium nitrate 34 Lime (calcium oxide) is used to treat waste water from a factory. Which substance is removed by the lime? ammonia sodium chloride sodium hydroxide sulfuric acid ULES /12/M/J/16 [Turn over

14 14 35 The diagram shows the separation of petroleum into fractions. gasoline X Y petroleum Z bitumen What could X, Y and Z represent? X Y Z diesel oil lubricating fraction paraffin lubricating fraction diesel oil paraffin paraffin lubricating fraction diesel oil paraffin diesel oil lubricating fraction 36 Which compound is not an alkane, n 2n+2? ( 3 ) ( 3 ) 3 ULES /12/M/J/16

15 15 37 hydrocarbon W burns to form carbon dioxide and water. W decolourises bromine water. What is the name of W and what is its structure? name of W structure of W ethane ethane ethene ethene 38 Which term describes the formation of ethanol from glucose? cracking distillation fermentation polymerisation ULES /12/M/J/16 [Turn over

16 16 39 Ethene forms an addition polymer as shown Which terms describe this polymer? a saturated compound called poly(ethane) a saturated compound called poly(ethene) an unsaturated compound called poly(ethane) an unsaturated compound called poly(ethene) 40 Which statement about carboxylic acids is not correct? queous ethanoic acid has a p below p 7. They contain the functional group OO. They produce carbon dioxide when reacted with a metal carbonate. Methyl orange turns yellow in aqueous ethanoic acid. ULES /12/M/J/16

17 17 LNK PGE ULES /12/M/J/16

18 18 LNK PGE ULES /12/M/J/16

19 19 LNK PGE 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. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the ambridge International Examinations opyright cknowledgements ooklet. This is produced for each series of examinations and is freely available to download at after the live examination series. 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 /12/M/J/16

20 20 ULES /12/M/J/16 Group The Periodic Table of Elements 1 hydrogen 1 2 e helium 4 I II III IV V VI VII VIII 3 Li lithium 7 4 e beryllium 9 atomic number atomic symbol Key name relative atomic mass 11 Na sodium Mg magnesium K potassium a calcium Rb rubidium Sr strontium s caesium a barium Fr francium 88 Ra radium 5 boron l aluminium Ga gallium In indium Tl thallium carbon Si silicon Ge germanium Sn tin Pb lead Ti titanium Zr zirconium f hafnium Rf rutherfordium 23 V vanadium Nb niobium Ta tantalum b dubnium 24 r chromium Mo molybdenum W tungsten Sg seaborgium 25 Mn manganese Tc technetium 75 Re rhenium h bohrium 26 Fe iron Ru ruthenium Os osmium s hassium 27 o cobalt Rh rhodium Ir iridium Mt meitnerium 28 Ni nickel Pd palladium Pt platinum s darmstadtium 29 u copper g silver u gold Rg roentgenium 30 Zn zinc d cadmium g mercury n copernicium 114 Fl flerovium 116 Lv livermorium 7 N nitrogen P phosphorus s arsenic Sb antimony i bismuth O oxygen S sulfur Se selenium Te tellurium Po polonium 9 F fluorine l chlorine r bromine I iodine t astatine 10 Ne neon r argon Kr krypton Xe xenon Rn radon 21 Sc scandium Y yttrium lanthanoids actinoids 57 La lanthanum c lanthanoids actinoids The volume of one mole of any gas is 24 dm 3 at room temperature and pressure (r.t.p.) actinium 58 e cerium Th thorium Pr praseodymium Pa protactinium Nd neodymium U uranium Pm promethium 93 Np neptunium 62 Sm samarium Pu plutonium 63 Eu europium m americium 64 Gd gadolinium m curium 65 Tb terbium k berkelium 66 y dysprosium f californium 67 o holmium Es einsteinium 68 Er erbium Fm fermium 69 Tm thulium Md mendelevium 70 Yb ytterbium No nobelium 71 Lu lutetium Lr lawrencium PMT

This resource contains three different versions of the periodic table, including a blank one for colouring!

Teaching notes This resource contains three different versions of the periodic table, including a blank one for colouring! It also contains tables of the Group 0, 1 and 7 elements with a few columns for