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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary LevelCHEMISTRY 5070/01Paper 1 Multiple ChoiceAdditional Materials: Multiple Choice Answer SheetSoft clean eraserSoft pencil (type B or HB is recommended)

May/June 20041 hourREAD 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 to be found on page 16.IB04 06_5070_01/FP

This document consists of 16 printed pages. UCLES 2004 [Turn overwww.xtremepapers.net21Aqueous hydrogen peroxide undergoes cataIytic decomposition as shown in the equation beIow.2H202(aq) 2H20(I) + 02(g)The diagram shows part of the apparatus used to measure the rate of decomposition.Xaqueous hydrogen peroxide

catalystWhich piece of apparatus is connected at position X?AburetteB gas syringeC measuring cyIinderDpipette2 A mixture of two substances is spotted on to a piece of chromatography paper.The paper was inserted into a beaker containing a Iiquid.

beaker

chromatography paperliquid

spot of mixtureFor separation of the substances to occur the mixture mustAbe pIaced so that the spot is just beIow the IeveI of the Iiquid.

B be soIubIe in the Iiquid.

C contain substances of the same Rf vaIues.Dcontain substances that are coIoured. UCLES 2004 5070/01/M/J/04www.xtremepapers.net33 In a sampIe of air at 25 oC, the moIecuIes of oxygen, nitrogen and carbon dioxide aII move with different average speeds.Which of the foIIowing Iists the moIecuIes in order of decreasing average speed?fastest sIowest

A B C

Dcarbon dioxide nitrogen oxygenoxygenoxygen oxygen

carbon dioxidenitrogennitrogen carbon dioxide nitrogencarbon dioxide

4 Which of the foIIowing is the best method of obtaining pure water from ink?AchromatographyB distiIIation

C fiItration

Dfreezing5 The reIative moIecuIar mass, Mr, of copper(II) suIphate, CuS04, is 160.The reIative moIecuIar mass, Mr, of water is 18.What is the percentage by mass of water in copper(II) suIphate crystaIs, CuS04.5H20?18 x 100A160

5 x 18 x 100B 160 + 18

18 x 100C 160 + 18

5 x 18 x 100

160 + (5 x 18) UCLES 2004 5070/01/M/J/04[Turn overwww.xtremepapers.net46 A soIution of fertiIiser was tested as shown.add excess aqueous sodium hydroxide solution

moist red litmus paper turns bluefertiliser solution

dirty green precipitate formswarm the mixtureWhich ions must be present in the fertiIiser?ANH4+ and N03 B NH4+ and Fe2+ C Fe2+ and S042 DFe3+ and N037 An eIement X has two isotopes, 238X and 235X.How does 238X differ from 235X?AIt has 3 more protons and 3 more eIectrons.B It has 3 more protons, but no more eIectrons.C It has 3 more neutrons and 3 more eIectrons.DIt has 3 more neutrons, but no more eIectrons. UCLES 2004 5070/01/M/J/04www.xtremepapers.net58 The formuIae of the ions of four eIements are shown beIow.02 F Li+Mg2+Which statement about these ions is correct? They aII haveAthe same number of eIectrons in their outer sheIIs.B the same eIectronic structure as a nobIe gas.C the same number of protons in their nucIei.Dmore eIectrons than protons.9 Which diagram represents the structure of sand, Si02?ABkeyCD

Silicon atomOxygen atom10 What happens when sodium chIoride meIts?ACovaIent bonds in a giant Iattice are broken.B EIectrons are reIeased from atoms.C EIectrostatic forces of attraction between ions are overcome.DMoIecuIes are separated into ions. UCLES 2004 5070/01/M/J/04[Turn overwww.xtremepapers.net611 In the circuit beIow, the Iamp Iights up.lampelectrodes

substance XWhat couId X be?Aa soIution of ethanoI in waterB a soIution of sodium chIoride in waterC Iiquid ethanoIDsoIid sodium chIoride12 The formuIa of china cIay (aIuminium siIicate) was shown in an oId book as Al203.2Si02.2H20.This formuIa is shown in a modern book as Al2(0H)x Si20y.What are the vaIues of x and y in the modern formuIa?xy

A B C

D22444535

13 What is the concentration of iodine, I2, moIecuIes in a soIution containing 2.54 g of iodine in

250 cm3 of soIution?A0.01 moI / dm3 B 0.02 moI / dm3 C 0.04 moI / dm3 D0.08 moI / dm314 The formuIa of an oxide of uranium is U02.What is the formuIa of the corresponding chIoride?AUCl2B UCl4C U2ClDU4Cl UCLES 2004 5070/01/M/J/04www.xtremepapers.net715 The equation for the burning of hydrogen in oxygen is shown beIow.2H2(g) + 02(g) 2H20(g) Which information does this equation give about the reaction? A36 g of steam can be obtained from 16 g of oxygen.B 2 g of hydrogen combine with 1 g of oxygen.C 2 moI of steam can be obtained from 1 moI of oxygen.D2 atoms of hydrogen combine with 2 atoms of oxygen.16 A current was passed through concentrated aqueous potassium chIoride, KCl, as shown.+_concentrated aqueous potassium chlorideWhich entry in the tabIe is correct?ions moving towards

the cathode (-ve)the anode (+ve)

A B C

DK+ onIy

K+ onIy K+ and H+ K+ and H+Cl and 0HCl onIy

Cl onIy

Cl and 0H

UCLES 2004 5070/01/M/J/04[Turn overwww.xtremepapers.net817 When the experiment shown was set up, the buIb Iit, but there were no decomposition products at the eIectrodes.electrodes

+ve_ve

lampXWhat is X?Aaqueous sodium chIorideB bromineC moIten sodium chIorideDmercury18 Which of the foIIowing changes is endothermic?AH(g) + Cl(g) HCl(g) BH20(g) 2H(g) + 0(g) CH20(l) H20(s)D2H2(g) + 02(g) 2H20(l) UCLES 2004 5070/01/M/J/04www.xtremepapers.net919 The diagram shows apparatus for measuring the voIume of hydrogen given off when an excess of diIute hydrochIoric acid is added to powdered metaI. The voIume of gas is measured at room temperature and pressure.dilute hydrochloric acidtapgraduated tubemetallic powder

waterThe experiment is carried out three times, using the same mass of powder each time but with different powders:.pure magnesium.pure zinc.a mixture of magnesium and zincWhich powder gives the greatest voIume of hydrogen and which the Ieast voIume?greatest voIume of H2Ieast voIume of H2

A B C

Dmagnesium magnesium zinczinczincthe mixture magnesium the mixture

20 Which change wiII increase the speed of the reaction between 1 moI of each of the gases, X andY?Aa decrease in surface area of the cataIystB a decrease in temperatureC a decrease in the voIume of the reaction fIaskDan increase in the voIume of the reaction fIask UCLES 2004 5070/01/M/J/04[Turn overwww.xtremepapers.net1021 DiIute hydrochIoric acid was reacted with magnesium ribbon and the voIume of hydrogen gas evoIved was measured for the first 80 s.4030 totalvolume of hydrogen20produced / cm310001020304050607080time from start of reaction / sWhat was the average rate of production of hydrogen?A0.4 cm3 / sB 2.5 cm3 / sC 4 cm3 / sD40 cm3 / s22 SmaII portions of aqueous potassium iodide and of acidified, aqueous potassium manganate(VII)were added to four soIutions. The coIour changes seen are shown in the tabIe.soIution numberpotassium iodidepotassium manganate(VII)

1234coIourIess to red coIourIess to red no changeno changepurpIe to coIourIess no changepurpIe to coIourIessno change

Which soIutions contained an oxidising agent?A1 onIyB 1 and 2 onIyC 1 and 3 onIyD2 and 4 onIy

UCLES 2004 5070/01/M/J/04www.xtremepapers.net1123 The tabIe gives information about three indicators.indicatorcoIour changeIow pH high pHpH at which coIour change takes pIace

methyI orange bromothymoI bIuephenoIphthaIeinred yeIIow yeIIowbIuecoIourIess pink4.06.59.0

If equaI voIumes of these three indicators were mixed, which coIour wouId be observed at pH 5?AbIueB greenC orangeDyeIIow

24 A soIution of hydrochIoric acid has a concentration of 2 moI / dm3.Different voIumes of the acid are added to different voIumes of aqueous sodium hydroxide.NaOH + HC1 NaC1 + H2OThe maximum temperature of each mixture is measured. The graph shows the resuIts.temperature / oC01020304050HCl / cm3

50403020100NaOH / cm3

What is the concentration of the aqueous sodium hydroxide?A0.67 moI / dm3B 1.3 moI / dm3C 1.5 moI / dm3D3.0 moI / dm3 UCLES 2004 5070/01/M/J/04[Turn overwww.xtremepapers.net1225 Which method of preparation of a pure saIt soIution requires the use of a pipette and burette?ABaC1 2(aq)+H2S04(aq) BaS04(s)+2HC1 (aq)

BCu0(s)+2HC1 (aq) CuC1 2(aq)+H20(I)

CK0H(aq)+HC1 (aq) KC1 (aq)+H20(I)

DMgC03(s)+H2S04(aq) MgS04(aq)+H20(I) + C02(g)

26 Which statement about the manufacture of ammonia by the Haber Process is correct?AThe reactants and product are eIements.B The reactants and product are gases.C The reactants and product are compounds.DThe reactants are both obtained from the air.27 Which of the foIIowing occurs in the Contact process?ASuIphur dioxide is dissoIved in water.B SuIphur trioxide is dissoIved in water.C SuIphur dioxide is dissoIved in diIute suIphuric acid.DSuIphur trioxide is dissoIved in concentrated suIphuric acid.28 The diagrams show the arrangements of the eIectrons of four eIements.element 1

element 2

element 3

element 4Which two eIements are metaIs?A1 and 2

B C

D1 and 32 and 43 and 4

UCLES 2004 5070/01/M/J/04www.xtremepapers.net1329 Sodium, aIuminium and suIphur are in the same period of the Periodic TabIe.What trend in types of oxide occurs across this period?Ieftright

A B C

Dacidic amphoteric basicbasicamphoteric basic acidicamphotericbasic acidic amphotericacidic

30 Use the Periodic TabIe to decide which eIement has aII four of the properties shown..high meIting point.variabIe oxidation states.good eIectricaI conductivity.forms coIoured compoundsAcaesium, CsB cobaIt, CoC iodine, I

Dstrontium, Sr31 Iron rusts when exposed to oxygen in the presence of water.Which of these methods wiII not sIow down the rate of rusting of an iron roof?Aattaching strips of copper to it

B coating it with pIasticC gaIvanising it with zincDpainting it

32 Why does aIuminium have an apparent Iack of reactivity?AAIuminium has a coating of aIuminium oxide, preventing further reaction.B AIuminium has a giant moIecuIar structure that is too hard to break.C AIuminium is Iow in the reactivity series.DThe activation energy for the reaction of aIuminium with other eIements is too high. UCLES 2004 5070/01/M/J/04[Turn overwww.xtremepapers.net1433 Which oxide can be reduced to the metaI by hydrogen?AcaIcium oxideB copper(II) oxideC magnesium oxideDsodium oxide34 The data gives the concentration, in parts of poIIutant per biIIion parts of air, of poIIuting gases in four different industriaIised cities.In which city are Iimestone buiIdings under greatest threat from poIIution?citysuIphur dioxidenitrogen dioxideozone

A B C

D173238454633401423301121

35 The water in a Iake contains the foIIowing dissoIved substances..mineraI saIts.nitrates.oxygen.phosphates.sewageHow many of these substances can cause eutrophication?A1 B 2 C 3 D436 The equation represents the conversion of starch to a simpIe sugar. (C6H1005)n + n H20 n C6H1206starchsimpIe sugarThis reaction is an exampIe of

Acondensation. Bhydrogenation. ChydroIysis.DpoIymerisation. UCLES 2004 5070/01/M/J/04www.xtremepapers.net1537 Methane, CH4, the first member of the aIkane homoIogous series, has a boiIing point of 161 oC.Which moIecuIar formuIa and boiIing point couId be correct for another aIkane?moIecuIar formuIaboiIing point / oC

A B C

DC2H4C2H6C3H6C3H8 88 185 69 42

38 A student carries out three tests on a gas X.

testresuIts

damp red Iitmus paper aqueous bromineIighted spIintstays red stays browngas burns

Which gas couId be X?AammoniaB etheneC methaneDoxygen39 An organic compound, Y, reacts with sodium hydroxide to give a compound with formuIaC3H502Na.What is compound Y?AethanoIB propaneC propanoic acidDpropanoI40 Which compound has an addition reaction with chIorine?AC2H4 B C2H6 C C2H50H DCH3C02H UCLES 2004 5070/01/M/J/04www.xtremepapers.netDATA SHEETThe Periodic Table of the ElementsGroup

IIIIIIIVVVIVII0

1HHydrogen14HeHelium2

7LiLithium39BeBeryllium411BBoron512CCarbon614NNitrogen716OOxygen819FFluorine920NeNeon10

23NaSodium1124MgMagnesium1227AlAluminium1328SiSilicon1431PPhosphorus1532SSulphur1635.5ClChlorine1740ArArgon18

39KPotassium1940CaCalcium2045ScScandium2148TiTitanium2251VVanadium2352CrChromium2455MnManganese2556FeIron2659CoCobalt2759NiNickel2864CuCopper2965ZnZinc3070GaGallium3173GeGermanium3275AsArsenic3379SeSelenium3480BrBromine3584KrKrypton36

85RbRubidium3788SrStrontium3889YYttrium3991ZrZirconium4093NbNiobium4196MoMolybdenum42TcTechnetium43101RuRuthenium44103RhRhodium45106PdPalladium46108AgSilver47112CdCadmium48115InIndium49119SnTin50122SbAntimony51128TeTellurium52127IIodine53131XeXenon54

133CsCaesium55137BaBarium56139LaLanthanum57*178HfHafnium72181TaTantalum73184WTungsten74186ReRhenium75190OsOsmium76192IrIridium77195PtPlatinum78197AuGold79201HgMercury80204TlThallium81207PbLead82209BiBismuth83PoPolonium84AtAstatine85RnRadon86

FrFrancium87226RaRadium88227AcActinium89

*58-71 Lanthanoid series90-103 Actinoid seriesaKeyXb

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.).

D

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

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