UNIVERSITY OF MRIGE INTERNTIONL EXMINTIONS International General ertificate of Secondary Education EMISTRY 0620/01 Paper 1 Multiple hoice October/November 2006 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, highlighters, 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. 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 16. You may use a calculator. I06 11_0620_01/2RP ULES 2006 This document consists of 16 printed pages. [Turn over
1 In which change of state do the particles become more widely separated? 2 gas to liquid gas to solid liquid to gas liquid to solid 2 student mixes 25 cm 3 samples of dilute hydrochloric acid with different volumes of aqueous sodium hydroxide. Each time, the student measures the change in temperature. Which piece of apparatus is not needed? beaker clock measuring cylinder thermometer 3 Which piece of apparatus should be used for the accurate measurement of 30.0 cm 3 of a liquid? a beaker a burette a conical flask a measuring cylinder 4 Which number is different for isotopes of the same element? number of electrons number of full shells number of nucleons number of protons ULES 2006 0620/01/O/N/06
3 5 The table shows the nucleon numbers and proton numbers of some atoms. nucleon number 35 37 40 39 40 proton number 17 17 18 19 19 ow many are atoms of non-metallic elements? 1 2 3 4 6 The table shows the electronic structures of four atoms. atom electronic structure W 2,1 X 2,7 Y 2,8,4 Z 2,8,8 Which two atoms combine to form an ionic compound? W and X W and Y X and Y X and Z 7 Element X forms an acidic, covalent oxide. Which row in the table shows how many electrons there could be in the outer shell of an atom of X? 1 2 6 7 8 Which atom has twice as many neutrons as protons? 1 1 2 1 3 1 4 2 e ULES 2006 0620/01/O/N/06 [Turn over
9 Magnesium and sulphur each form a chloride. What could be the formulae of these chlorides? 4 magnesium sulphur Mg 2 l S 2 l Mg 2 l Sl 2 Mgl 2 S 2 l Mgl 2 Sl 2 10 gas has the molecular formula NOl. Which diagram could show molecules of the pure gas NOl? key l N O ULES 2006 0620/01/O/N/06
11 The electrolysis of concentrated aqueous sodium chloride makes three products. Which products are shown at the correct electrodes? 5 anode (+ve) cathode ( ve) chlorine sodium hydroxide sodium hydroxide chlorine hydrogen sodium sodium hydrogen 12 luminium is extracted from its oxide by electrolysis. To do so, the oxide is dissolved. Which substance is used to dissolve aluminium oxide and where is aluminium deposited during the electrolysis? substance used to dissolve aluminium oxide where aluminium is deposited cryolite anode (+ve) cryolite cathode ( ve) water anode (+ve) water cathode ( ve) 13 Which piece of apparatus is essential to measure the speed of a reaction? accurate balance gas syringe stopwatch thermometer ULES 2006 0620/01/O/N/06 [Turn over
14 Equations for two changes P and Q are shown. 6 P Q 2 O(s) 2 O(l) 4 (g) + 2O 2 (g) O 2 (g) + 2 2 O(l) Which of these changes are exothermic? P Q 15 The decomposition of glucose, in aqueous solution, to form ethanol and carbon dioxide is catalysed by an enzyme in yeast. Which change increases the rate of this decomposition? add more water to the solution cool the solution heat the solution to boiling point heat the solution to 30 16 Which equation shows an oxidation reaction? + O 2 O 2 ao 3 ao + O 2 2 2 O 2 2 2 O + O 2 N 2 O 4 2NO 2 17 cids react with bases, carbonates and metals. Which of these reactions produce a gas? reaction of acid with a base carbonate metal ULES 2006 0620/01/O/N/06
7 18 Which properties does an acid have? 1 reacts with ammonium sulphate to form ammonia 2 turns red litmus blue 1 2 19 The diagrams show two experiments, one to make barium chloride and the other to make barium sulphate. dilute hydrochloric acid dilute sulphuric acid aqueous barium hydroxide aqueous barium hydroxide In each experiment, the acid is run into the conical flask until the resulting liquid has p7. What are the next steps to obtain samples of the solid salts? barium chloride barium sulphate crystallisation crystallisation crystallisation filtration filtration crystallisation filtration filtration ULES 2006 0620/01/O/N/06 [Turn over
20 Which piece of equipment can be used to show that a gas is hydrogen? 8 glowing flame limewater damp litmus paper splint splint 21 The statements are about metals and their oxides. Metals X electrons to form ions. The oxides of metals are Y. Which words correctly complete the statements? X Y gain acidic gain basic lose acidic lose basic 22 The diagram shows one stage in the manufacture of nitric acid from ammonia. heated platinum gauze ammonia and air products What could be the use of the platinum gauze in this process? as a base as a catalyst as a filter as a fuel ULES 2006 0620/01/O/N/06
23 n element does not conduct electricity but it does exist as diatomic molecules. In which area of the Periodic Table is the element to be found? 9 24 Which properties of helium explain its use in filling balloons? low density its unreactivity 25 The diagram shows apparatus used to test the reactivity of calcium, copper and magnesium with steam. steam gas metal heat Which metals react with steam to form hydrogen? calcium copper magnesium ULES 2006 0620/01/O/N/06 [Turn over
26 Which types of steel are used in chemical plants and machinery? 10 chemical plant machinery mild steel mild steel mild steel stainless steel stainless steel mild steel stainless steel stainless steel 27 In separate experiments, mixtures of uo/ and of MgO/ are strongly heated in the apparatus shown. metal oxide and carbon tube heat limewater What happens to the limewater in these experiments? uo/ MgO/ goes cloudy goes cloudy goes cloudy stays clear stays clear goes cloudy stays clear stays clear 28 Which raw materials are used in the manufacture of iron? bauxite and lime bauxite and limestone hematite and lime hematite and limestone ULES 2006 0620/01/O/N/06
11 29 The diagram represents the composition of dry air. Which part shows the percentage of nitrogen in the air? 30 The diagram shows some uses of water in the home. 1 2 3 For which of these uses is it important for the water to have been purified? 1 only 2 only 3 only 1, 2 and 3 31 The listed pollutants are sometimes found in car exhaust fumes. 1 carbon monoxide 2 nitrogen oxides 3 sulphur dioxide Which of these pollutants are products of the combustion of the fuel? 1 and 2 only 1 and 3 only 2 and 3 only 1, 2 and 3 ULES 2006 0620/01/O/N/06 [Turn over
12 32 shopkeeper stores iron nails in an airtight container, as shown in the diagram. tight lid plastic jar air iron nails The nails begin to rust after a few days. ow can the rusting of the nails be prevented? leave the lid off put a drying agent in the jar put the jar in a warm place seal the jar in a bag 33 Two uses of oxygen are 1 burning acetylene in welding, 2 helping the breathing of hospital patients. Which of these uses form carbon dioxide? use 1 use 2 ULES 2006 0620/01/O/N/06
13 34 The diagram shows a kiln used to heat limestone. limestone waste gases gas burners product air What is the product and what waste gas is formed? product waste gas lime carbon monoxide lime carbon dioxide slaked lime carbon monoxide slaked lime carbon dioxide 35 The structures of three compounds are shown. O 3 2 3 3 2 2 3 2 O 3 What are X, Y and Z? X Y Z X Y Z alkane alkene alcohol alkane alkene carboxylic acid alkene alkane alcohol alkene alkane carboxylic acid ULES 2006 0620/01/O/N/06 [Turn over
36 ow many oxygen atoms and double bonds are there in one molecule of ethanoic acid? 14 number of oxygen atoms number of double bonds 1 0 1 1 2 0 2 1 37 ompounds R and S occur naturally. R is 6 14 and S is 6 12 O 6. Which of the terms hydrocarbon and occurs in crude oil describe R and S? hydrocarbon occurs in crude oil R only R only R only S only S only R only S only S only 38 The diagram shows an ethane molecule. Which compound has chemical properties similar to those of ethane? O O O ULES 2006 0620/01/O/N/06
39 The diagram shows the first four members of a homologous series. 15 What is the difference in molecular formula between one member and the next in the series? 2 3 4 40 The diagram shows part of a polymer. Which compound is used as the monomer? 2 4 2 6 6 12 6 14 ULES 2006 0620/01/O/N/06 [Turn over
16 T SEET The Periodic Table of the Elements Group I II III IV V VI VII 0 1 1 ydrogen 2 4 e elium 3 7 Li Lithium 4 9 e eryllium 5 11 oron 6 12 arbon 7 14 N Nitrogen 8 16 O Oxygen 9 19 F Fluorine 10 20 Ne Neon 11 23 Na Sodium 12 24 Mg Magnesium 13 27 l luminium 14 28 Si Silicon 15 31 P Phosphorus 16 32 S Sulphur 17 35.5 l hlorine 18 40 r rgon 19 39 K Potassium 20 40 a alcium 21 45 Sc Scandium 22 48 Ti Titanium 23 51 V Vanadium 24 52 r hromium 25 55 Mn Manganese 26 56 Fe Iron 27 59 o obalt 28 59 Ni Nickel 29 64 u opper 30 65 Zn Zinc 31 70 Ga Gallium 32 73 Ge Germanium 33 75 s rsenic 34 79 Se Selenium 35 80 r romine 36 84 Kr Krypton 37 85 Rb Rubidium 38 88 Sr Strontium 39 89 Y Yttrium 40 91 Zr Zirconium 41 93 Nb Niobium 96 Mo Molybdenum 42 43 Tc Technetium 44 101 Ru Ruthenium 45 103 Rh Rhodium 46 106 Pd Palladium 47 108 g Silver 48 112 d admium 49 115 In Indium 50 119 Sn Tin 51 122 Sb ntimony 52 128 Te Tellurium 53 127 I Iodine 54 131 Xe Xenon 55 87 133 s aesium Fr Francium 56 88 137 a arium 226 Ra Radium 139 La Lanthanum 57 * 89 227 c ctinium 72 178 f afnium 73 181 Ta Tantalum 74 184 W Tungsten 75 186 Re Rhenium 76 190 Os Osmium 77 192 Ir Iridium 78 195 Pt Platinum 79 197 u Gold 80 201 g Mercury 81 204 Tl Thallium 82 207 Pb Lead 83 209 i ismuth 84 Po Polonium 85 t statine 86 Rn Radon *58-71 Lanthanoid series 90-103 ctinoid series Key b a X a = relative atomic mass X = atomic symbol b = proton (atomic) number 58 90 140 e erium 232 Th Thorium 141 Pr Praseodymium 59 91 Pa Protactinium 60 92 144 Nd Neodymium 238 U Uranium 61 93 Pm Promethium Np Neptunium 62 94 150 Sm Samarium Pu Plutonium 63 95 152 Eu Europium m mericium 64 96 157 Gd Gadolinium m urium 65 97 159 Tb Terbium k erkelium 66 98 162 y ysprosium f alifornium 67 99 165 o olmium Es Einsteinium 68 100 167 Er Erbium Fm Fermium 69 169 Tm Thulium Md Mendelevium 101 70 102 173 Yb Ytterbium No Nobelium 71 175 Lu Lutetium Lr Lawrencium 103 The volume of one mole of any gas is 24 dm 3 at room temperature and pressure (r.t.p.). 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. University of ambridge International Examinations is part of the University of ambridge Local Examinations Syndicate (ULES), which is itself a department of the University of ambridge. ULES 2006 0620/01/O/N/06