Microsoft Word - LIBS_TASK OIGSCI 06_0620_01 2007.doc

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary EducationCHEMISTRY 0620/01Paper 1 Multiple Choice May/June 200745 minutesAdditional Materials: Multiple Choice Answer SheetSoft clean eraserSoft pencil (type B or HB is recommended)READ THESE INSTRUCTIONS FIRSTWrite in soft pencil.Do not use staples, paper clips, highlighters, glue or correction fluid.

Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided unless this has been done for you.There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D.Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.Read the instructions on the Answer Sheet very carefully.Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet.A copy of the Periodic Table is printed on page 16. You may use a calculator.This document consists of 16 printed pages.IB07 06_0620_01/2RP UCLES 2007 [Turn overwww.xtremepapers.net21 When there is no wind, the scent of flowers can be detected more easily on a warm evening than on a cold evening.This is because the molecules of the scent 1 2 than in colder conditions. Which words correctly complete gaps 1 and 2?gap 1gap 2

A B C

Dcondense condense diffusediffusenearer to the flowers further from the flowers nearer to the flowersfurther from the flowers

2 A student investigates if, at 30 oC, the concentration of acid affects how rapidly it reacts with a known mass of magnesium.The student has a beaker, concentrated acid, water and the apparatus below.P a balanceQ a clockR a measuring cylinderS a thermometerWhich of these pieces of apparatus does the student use?AP, Q and R only BP, Q and S only CQ, R and S only DP, Q, R and S3 The boiling point of liquid X is lower than that of water. To test a student, a teacher covers up the numbers on a thermometer. The student places the thermometer in boiling liquid X.

The diagram represents part of the stem of this thermometer.mercuryWhat could the temperature on the thermometer be?A75.5 C B 84.5 C C 104.5 C D105.5 C UCLES 2007 0620/01/M/J/07www.xtremepapers.net34 Which mixture can be separated by adding water, stirring and filtering?Abarium chloride and sodium chlorideB copper and magnesiumC diamond and graphiteDsilver chloride and sodium nitrate5 An atom has the symbol p XWhich value determines the position of the element in the Periodic Table?ApB qC p qDp + q6 Element Y is in the second Period of the Periodic Table. An atom of element Z has six more protons than an atom of element Y.

Which statement must be correct?AElements Y and Z are in the same Period.B Elements Y and Z have the same number of electrons in the first shell.C Element Z has six more electrons in its outer shell than element Y.

DThe nucleon number of element Z is six more than that of element Y.

7 The diagram shows the structure of methane.HHCHHWhat is the total number of electrons used for bonding in this molecule?A2 B 4 C 8 D10 UCLES 2007 0620/01/M/J/07[Turn overwww.xtremepapers.net48 The diagram shows the structure of a substance.What is represented?AdiamondB ethaneC graphiteDpoly(ethene)9 In the diagrams, circles of different sizes represent atoms of different elements.Which diagram can represent hydrogen chloride gas?ABCD10 Boron, B, forms an oxide.Which equation is correctly balanced?A2B + 3O2 B2O3B 2B + 3O2 2B2O3C 4B + 2O2 2B2O3D4B + 3O2 2B2O3 UCLES 2007 0620/01/M/J/07www.xtremepapers.net511 Students are asked to statethe number of atoms in one molecule of ethanoic acid,the relative molecular mass, Mr, of this acid.Which line is correct?number of atomsMr

A B C

D889932602646

12 A molten compound is electrolysed. Two atoms of X are deposited at the negative electrode at the same time as three atoms of Y are deposited at the positive electrode.These results show that: X is a 1;Y is a 2;the formula of the compound is 3 .How are gaps 1, 2 and 3 correctly completed?123

A B C

Dmetal metal

non-metalnon-metalnon-metal non-metal metalmetalX3Y2X2Y3X3Y2X2Y3

13 In which electrolyses are chlorine, hydrogen and sodium hydroxide all produced?aqueous sodium chloridemolten sodium chloride

A B C

D

UCLES 2007 0620/01/M/J/07[Turn overwww.xtremepapers.net614 The diagram shows a match.By striking the match, a chemical reaction takes place.Which statements about the chemical reaction are correct?type of reactionreason

A B C

Dendothermic endothermic exothermicexothermicbecause energy is used to strike the match because energy is given out as the match burns because energy is used to strike the matchbecause energy is given out as the match burns

15 Which process is not exothermic?Aburning a fossil fuelB obtaining lime from limestoneC radioactive decay of 235UDreacting hydrogen with oxygen16 Three reactions used in the manufacture of sulphuric acid are shown.1 S + O2 SO22 2SO2 + O2 2SO33 SO3 + H2O H2SO4Which of these reactions are redox reactions?A1 onlyB 3 onlyC 1 and 2 onlyD2 and 3 only UCLES 2007 0620/01/M/J/07www.xtremepapers.net717 In an experiment using dilute acid and a metal, the speed at which hydrogen is released is measured (curve X on graph).The experiment is repeated but with one of the conditions changed (curve Y on graph).total volumeYof hydrogenX00timeWhich changes in condition could result in curve Y?increase in concentration of acidincrease in particle size of metalincrease in temperature

A B C

D

18 Aqueous sodium hydroxide and aqueous ammonia each give a white precipitate when added to aqueous zinc sulphate.What happens when an excess of each of these reagents is added?excess NaOH(aq)excess NH3(aq)

A B C

Dprecipitate dissolves precipitate dissolves precipitate does not dissolveprecipitate does not dissolveprecipitate dissolves precipitate does not dissolve precipitate dissolvesprecipitate does not dissolve

UCLES 2007 0620/01/M/J/07[Turn overwww.xtremepapers.net819 Aqueous sodium hydroxide is added to two different solutions with the results shown.XYgreen precipitate formedlight blue precipitate formedWhat are the cations present in X and Y?XY

A B C

Dcopper(II) copper(II) iron(II)iron(III)iron(II) iron(III) copper(II)copper(II)

20 In which experiment does the limewater not turn milky?ABsuction pump

acid

magnesium carbonate

limewater

ethanol

limewater

CDacid

limewateriron filings

limewater

UCLES 2007 0620/01/M/J/07www.xtremepapers.net921 Two indicators, bromophenol blue and Congo red, show the following colours in acidic solutions and in alkaline solutions.indicatoracidalkali

bromophenol blueCongo redyellowvioletbluered

A few drops of each indicator are added to separate samples of a solution of pH 2.What are the colours of the indicators in this solution?in a solution of pH 2

bromophenol blue isCongo red is

A B C

Dblue blue yellowyellowred violet redviolet

22 Aqueous lead(II) nitrate is added to a solution containing iodide ions. Lead(II) iodide is formed.Which type of reaction takes place?AneutralisationB oxidationC precipitationDreduction23 The diagram shows an outline of part of the Periodic Table.WX YZWhich two elements could form a covalent compound?AW and XB W and YC X and YDX and Z

UCLES 2007 0620/01/M/J/07[Turn overwww.xtremepapers.net1024 Which substances react with aqueous potassium bromide to form bromine?chlorineiodine

A B C

D

25 Why are some weather balloons filled with helium rather than hydrogen?AHelium is found in air.B Helium is less dense than hydrogen. CHelium is more dense than hydrogen. DHelium is unreactive.26 The table shows the densities of some Group I metals.Which of these metals sinks in benzene (density = 0.88 g / cm3) but floats in nitrobenzene(density = 1.2 g / cm3)?metaldensity, in g / cm3

A B C

Dlithium sodium potassiumrubidium0.530.970.861.53

27 The diagram shows the properties of four substances.Which one could be magnesium?Does it bend or break easily?bendsbreaksDoes it react with dilute hydrochloric acid?

Does it react with dilute hydrochloric acid?yesno

yesnoABCD UCLES 2007 0620/01/M/J/07www.xtremepapers.net1128 In native copper, the element occurs as the metal, not as a compound.Gold is below copper in the reactivity series.Which can be deduced about the properties of gold?it occurs nativeit reacts with dilute sulphuric acid

A B C

D

29 The diagram shows a method for displacing a metal from its oxide.metal oxide

excess of hydrogen burninghydrogenheatWhich metal can be displaced from its oxide by using this method?AcalciumB copperC magnesiumDpotassium30 Stainless steel is used to make cutlery. Aluminium is used to make food containers.Which property do both metals have that makes them suitable for these uses?AThey are good conductors of electricity.B They are good conductors of heat.C They are resistant to corrosion.DThey are very strong. UCLES 2007 0620/01/M/J/07[Turn overwww.xtremepapers.net1231 Which process takes place in the conversion of iron into steel?ABasic oxides are removed.B Carbon is converted to carbon dioxide.C Iron is oxidised.DIron oxide is reduced.32 In which industrial process is the presence of water not essential?Athe electrolytic purification of copperB the production of ethanol from etheneC the production of ethanol by fermentationDthe production of iron in the Blast Furnace33 The pie chart represents the composition of air.XWhat is gas X?Acarbon dioxideB hydrogenC nitrogenDoxygen UCLES 2007 0620/01/M/J/07www.xtremepapers.net1334 The diagram shows an experiment in which ammonia is released.damplitmus paperammoniamixture of solution Xandaqueous ammonium sulphateheatWhich line in the table is correct?solution Xfinal colour of litmus paper

A B C

Daqueous sodium hydroxide aqueous sodium hydroxide dilute sulphuric aciddilute sulphuric acidblue red bluered

35 A bag of fertiliser Watch it grow contains ammonium sulphate and potassium sulphate.Which of the three elements N, P and K does Watch it grow contain?NPK

A B C

D

UCLES 2007 0620/01/M/J/07[Turn overwww.xtremepapers.net1436 When limestone is heated very strongly in air, lime is made.What is the formula of limestone and of lime?limestonelime

A B C

DCaCO3CaCO3CaO Ca(OH)2CaO Ca(OH)2CaCO3CaCO3

37 Bromine and steam each react with ethene.Which of these reactions need a catalyst?Br2 / ethenesteam / ethene

A B C

D

38 What are formed when glucose is fermented?Aethanol and carbon dioxideB ethanol and oxygenC ethene and carbon dioxideDethene and oxygen39 Which formula represents a compound that dissolves in water to form an acidic solution?AHHHHCCCH HHH

BHHH HCCC H

H

CHHH HCCC HHH

HCOH H

DHH

O HCCCHHOH UCLES 2007 0620/01/M/J/07www.xtremepapers.net1540 Butane reacts as shown.catalystbutane

butene+hydrogen and heatWhat is this type of reaction?AcombustionB crackingC polymerisationDreductionPermission 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 (UCLES) 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. UCLES 20070620/01/M/J/07www.xtremepapers.netDATA SHEETThe Periodic Table of the ElementsGroup

IIIIIIIVVVIVII0

1HHydrogen14HeHelium2

7LiLithium39BeBeryllium411BBoron512CCarbon614NNitrogen716OOxygen819FFluorine920NeNeon10

23NaSodium1124MgMagnesium1227AlAluminium1328SiSilicon1431PPhosphorus1532SSulphur1635.5ClChlorine1740ArArgon18

39KPotassium1940CaCalcium2045ScScandium2148TiTitanium2251VVanadium2352CrChromium2455MnManganese2556FeIron2659CoCobalt2759NiNickel2864CuCopper2965ZnZinc3070GaGallium3173GeGermanium3275AsArsenic3379SeSelenium3480BrBromine3584KrKrypton36

85RbRubidium3788SrStrontium3889YYttrium3991ZrZirconium4093NbNiobium4196MoMolybdenum42TcTechnetium43101RuRuthenium44103RhRhodium45106PdPalladium46108AgSilver47112CdCadmium48115InIndium49119SnTin50122SbAntimony51128TeTellurium52127IIodine53131XeXenon54

133CsCaesium55137BaBarium56139LaLanthanum57 *178HfHafnium72181TaTantalum73184WTungsten74186ReRhenium75190OsOsmium76192IrIridium77195PtPlatinum78197AuGold79201HgMercury80204TlThallium81207PbLead82209BiBismuth83PoPolonium84AtAstatine85RnRadon86

FrFrancium87226RaRadium88227AcActinium

89

*58-71 Lanthanoid series90-103 Actinoid seriesaKey Xb

a = relative atomic massX = atomic symbolb = proton (atomic) number

The volume of one mole of any gas is 24 dm3 at room temperature and pressure (r.t.p.).*3849119746*

.

q

140

Ce

Cerium

58141

Pr

Praseodymium

59144

Nd

Neodymium

60

Pm

Promethium

61150

Sm

Samarium

62152

Eu

Europium

63157

Gd

Gadolinium

64159

Tb

Terbium

65162

Dy

Dysprosium

66165

Ho

Holmium

67167

Er

Erbium

68169

Tm

Thulium

69173

Yb

Ytterbium

70175

Lu

Lutetium

71232

Th

Thorium

90

Pa

Protactinium

91238

U

Uranium

92

Np

Neptunium

93

Pu

Plutonium

94

Am

Americium

95

Cm

Curium

96

Bk

Berkelium

97

Cf

Californium

98

Es

Einsteinium

99

Fm

Fermium

100

Md

Mendelevium

101

No

Nobelium

102

Lr

Lawrencium

103

HYPERLINK http://www.xtremepapers.net www.xtremepapers.net

0620/01/M/J/07

University of Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of

Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

16