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CONFIDENTIAL4s4utChemistryPaper 1September2013I 114 hour

SPM TRTAL EXAMINATION 2013MAKTAB RENDAH SAINS MARA

CHEMISTRYPaper I

:One hour and fifteen minutes

DO NOT OPEN THE QUESTION BOOKLETUNTIL BEING TOLD TO DO SO.This question booklet is bilingualKertas soalan ini adalah dalam dwibahasaCandidates are required to read the information at the last page of this questionbookletCalon dikehendaki membaca maHumat di halaman belakang kertas soalan

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6gd\cDiagram 1 shows an atomic model.Rajah I menunjukkan suatu model atom.

Electron moves outsideof the nucleusEleklron bergerak di luar nukleus

Nucleus that contains protonsNukleus mengandungi proton

Diagram 1Rajah I

Who was the scientist that proposed this atomic model?Siapakah saintis yang mencadangkan model atom infl

J.J ThompsonJohn DaltonErnest RutherfordJames Chadwick

Which of the statements are true for elements belonging to the same group?Manakah antara pernyataan berikut adalah benar mengenai unsur-unsur yang terletak di dalamkumpulan yang sama?I Have similar physical properties

Menunjukkan sifatfizikal yang samaII Have similar chemical propertiesMenunjukkan sifat kimiayang samam Have the same number of electrons in the outermost shellMempunyai bilangan elektron yang sama di dalam petala terluarry Have same number of shells occupied by electronsMempunyai bilangan petala berisi elektron yang samct

ABCD

ABCD

I and III and IVII and IIIII and IV

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Diagram 2 shows the set-up of apparatus used to prepare hydrogen gas in thelaboratory.Rajah2 menunjukkan susunan radas bagi penyediaan gas hidrogen di dalam makmal.

Flow of hydrogen gasAliran gas hidrogen

Hydrochloric aciAsid hidroWorik

Solid XPepejal X

Diagram2Rajah 2

Which of the following is solid X?Manakah antara adalah pepejalX?ZincZinkCopper Il) oxideKuprum Il) oksidaSodium carbonateNatrium karbonatPotassium hydroxideKalium hidrolcsida

4 A chemical reaction can be represented by the following equation:Suatu tindak balas kimia boleh diwakili oleh persamaan berikut :

CaCOs + 2HNOr -+ Ca NO3)z + HzO + COzWhich of the following are reactants?Manakah antara berikut adalah bahsn tindak balas?

HzO and COzHNOg and COzCaCO3 and HNO3Ca I.IO3)z,HzO and COz

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ABCD

ABCD




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Which of the following is correct about nitrogen dioxide , NO2 andpotassium oxide , KzO?Manakah antara berikut benar tentang nitrogen dioksida, NOz dan kalium oksida, K2O?

Nitrogen dioxideNitrogen dioksida Potassium oxideKalium oksidaCovalent compound

Sebatian kovalenIonic compound

Sebatian ionikIonic compound

Sebatian ionik Covalent compoundSebatian kovalenIonic cornpound

Sebatian ionik Ionic compoundSebatian ionikCovalent compound

Sebatian kovalen Covalent compoundSebatian kovalen

Diagram 3 shows how aluminium is extracted by electrolysis process.Rajah 3 menunjukkan bagaimana aluminium diekstrak menggunakan proses elektrolisis.Anode (+ve)Anod(+)

A

CD

Aluminium oxidedissolved in cryoliteAluminium oksida larutdalam lriolit

Diagram 3Rajah3What are the possible substances used as anode and cathode?Apakah bahan yang mungkin digunakan sebagai anod dan katod?

AnodeAnod CathodeKatodAluminium AluminiumAluminium Carbon

Carbon AluminiumCarbon Carbon

Cathode(-ve)Katod(-)Molten aluminiumLeburan aluminium

ABCD

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Dragram 4Rajah 4

Diagram 5Rajah 5What is substance T?Apakah bahanT?

A Acid BAcidC Water DAir

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5

Diagram 4 shows an electrolytic circuit using solid sodium chloride. The butbin the circuit does not light up.Raiah 4 menuniuklmn satu litar elektrolisis menggunakan pepejal natrium klorida. Mentol dalamlitar tidak menyala.

CarbonKarbon Solid sodium chlorideP ep ej al natrium klor ida

www. r.n yschoolchild rel . comwhich of the following changes would cause the bulb to light up?Manakah antara perubahan berilrut boleh menyebabkan mentol menyala?A Add more solid sodium chloride into the beakerTambahkan lebih banyak pepejal natrium klorida ke dalam bikarB Add water to the solid sodium chlorideTambahkan air kepada pepejal natrium kloridaC Add ethanol to the solid sodium chloride

Tambahkan etanol kepada pepejal natrium lcloridaD Replace the carbon electrodes with copper electrodesGantikan elektrod karbon dengan elektrod la prumDiagram 5 shows how the pH of an industrial waste changes when substance Tis added to it.Raiah 5 menunjukkan bagaimana pH bahan buangan industri berubah apabila bahanditambahkan.

beforeT is added after T is addedsebelwtTditanbah seldpas Tditanbah

PII

SaltGaramLimeKapur




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Diagram 6 shows the energy level for a chemical reaction.Rajah 6 menunjukkan aras tenaga bagi satu tindak balas kimia.EnergyTenaga

ProductsHqsil tindak balasDiagram 6

Rajah 6Which of the following reaction is represented by the energy level diagram?Manakah antara tindak balas berikut diwakili oleh gambar rajah aras tenqga tersebut?A Adding water to solid ammonium nitrate

Menambahkan air kepada pepejal ammonium nitratB Adding water to solid sodium hydroxideMenambahkan oir kepada pepejal natrium hidrol


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Diagram 8 shows apparatus set-up to prepare aqueous copper(Il) sulphate.Raiah 8 menuniukkan susunan radas untuk menyediakan larutan kuprum(ll) sulfut.Glass rodRod kaca

Solid MPepejal M *\

Aqueous N IFilter paperkertas turas

Excess solid Mpepejal M berlebihan

ABCD

12

B

D

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\xxx)o(xxxxflfi \_/%z_AqueousDiagram 8

Rajah 8What are substances M and N?Apakah bahanM danN?

Substance MBaltsnM Substance NBolton NCopperKuprum

Iron(II) sulphateFerum(ll) sulfatCopper(Il) chlorideKuprum(Il) klorida Potassium sulphateKalium suw

Copper(Il) oxideKuprum(ll) olcrida Sulphuric acidAsid sulfurikSulphurSulfur Copper(Il) chlorideKuprum(Il) klorida

Which of the following represent particles of hydrochloric acid in water?Manakah antara berikut menunjukkan zarah-zarah.asid hidroklorik dalam air?

copper(Il) sulphatekupr um(II) s u lfat a ku e s

@@(D@@@@@@@@@@@@

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AB

C

D

8

Which of the following is true about ethane?Manakoh antara berikut benar mengenai etana?Physical state atroom temperature

KeadaanJizikalpada sultu bilik

Reaction withoxygenTindak balas denganoksisen

Reaction withbromine waterTindak balas dengansir bromin

GasGas

BurnsTerbakar

Decolourised bromineMenyahwarnakan brominGasGas

BurnsTerbakar No reactionTiada tindak balas

LiquidCecoir BurnsTerbakar No reactionTiada tindak balasLiquidCecair BurnsTerbakar Decolourised bromineMenyahwarnakan bromin

Diagram 9 shows a blast furnace used to extract iron from iron ore.Raiah 9 menunjukkan relau bagas yang digunakan untuk mengekstrak besi daripada bijihnya.iron ore + coke limestonebijihbesi + arangkpk+ batakqnr

waste gasesstsagas

hot airudaa panasruolten iroubesi lebw

t4

flnagsanga

Diagram9Rajah 9

Why is limestone added to the furnace?Mengapakah batu kapur ditambahkan ke dalam relau?A To increase temperature in the furnaceMeningkatkan suhu dalam relauB To convert impurities in the ore into slagMenukar bendasing dalam bijih kepada sangaC To produce oxygen for burning the coke

Menghas ilkan o l


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Which of the following pairs is correct?Manakah antara pasangan berikut adalah benar?

ABCD

Homologous seriesSiri Honnlog General formulaFormula ant

AlkaneAlkana CnHzn,[:2r3..Carboxylic acidAsid karboksilik CrHzn+tCOOC*Hzm+t tD : 0, 1,2... m:l,2..AlcoholAlkohol CnHzn+rOH, tr:1,2,3..

EsterEster C Hz +TCOOH , r: 0,1,2...

16

Iron screwSkru besi

NitroNitrogen

Iron screwSkru besi

17

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A group of students are given iron screws to conduct experiment on rusting.In which test tube does the iron screw rust?Selatmpulan pelajar dibekolkan slru besi untuk menjalankan eksperimen mengenai pengaratan.Dalam tabung uji manakah slcru besi akan berkarat?

BAir

Udara

Iron screwSkru besi

IronSlcru besi

D[Lihat halaman sebelah

D

Which picture shows a common use of stainless steel?Manakah antara gambar berikut menunjukkan kegunaan keluli nirkarat?

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18 The following equation shows the reaction between potassium hydroxide solutionand nitric acid.Persamaan berikut menunjukkan tindak balas antara larutan kalium hidrotrsida dan asid nitrik.

KOHlaql+ HNO:(aq)+ KNO312q1 + HzO1ll AH: -57 kJmol-lWhich of the following statements is true?Manakah antara pernyataan berikut adalah benar?A Total energy content of reactants is lower than productsJumlah kandungan tenaga bahan tindak balas lebih rendah dari hasil tindak balosB The heat is absorbed from the surroundingsHaba diserap dari persekitaranC The temperature of the mixture risesSuhu campur an meningkatD The reaction is endothermic

Tindak balos ini adalah endotermik19 Why does the excessive use of aspirin can cause stomach ulcer ?Mengapa penggunaan aspirin secara berlebihan menyebabkan ulser perut ?A Aspirin can react with food to produce poisonous productsAspirin boleh bertindak balas dengan makanan untuk menghasilkan produk beracunB Aspirin can react with gastric juice to produce acidAspirin boleh bertindak balas dengan jus gastrik untuk menghasilkan asidC Aspirin contains poisonous substancesAspirin mengandungi bahan beracunD Aspirin contains acid

Aspir in mengandungi as id

20 The following shows examples of food additive.Berikut adalah contoh-contoh bahan tambah maksnan.. Sodium beruoateNatrium benzoato Vinegar

Cuka. Sodium nitriteNatrium nitritWhich type of food additive do the substances belon g to?Apakah jenis bahan tambah makanan bagi bahan di atas?A y;:tr::*, B PreservativesPengawetc XlXyo n* D stabilizerPenstabil

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Diagram l0 shows a process involving the molecules in the exhaust gas of a car.Raiah l0 menunjukkan proses melibatkan molekul-molekul gas dalam ekzos sebuah kereta.molecules in airmolehd dalanudoa

/ \\N= /.""\\@j..ql"""" ->molecules io exhaust gasmoleladdalatt gas ebosDiagram 10Rajah l0

Which statement describes the process?Manakah antaro pernyataan berikut menerangkan proses itu?A The molecules condense to the groundMolekul-molekul terkondensasi ke tanahB The molecules grouped as they cool

Mo lekul-molekul terkumpul apabila menyejukC The molecules spread further into the airMolekul-molekul tersebar ke udaraD The molecules stay where they areMolekul-molekul kekal di tempat asalDiagram 1 I shows the standard representation of P , Q and R.Rajah ll menunjukkan perwakilan piawai bagiP , Q dank

Diagram 11Rajah 11What can be deduced from the proton number and the nucleon number ofP,QandR?Apakahyang dapat dirumuskan daripada nombor proton dan nombor nukleon P, Q danR?

oo to u'.oooo 0to. I to'o tooi .o +

EoqL(I)

=C,ooo.Co@E;==Eoqco)L=ooc)aEt==

22

A R has more neutrons than QR mempunyai lebih banyak neutron berbanding QB P has more protons than QP mempunyai lebih banyak proton berbandingQC P and R are the same elementP danR adalah unsur yang qama

D P and Q are the same elementP dan Q adalah unsur yang sama4541/l 02013 Hak Cipta Majlis Amanah Rakyat, MARASULIT




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T2

An element melts at 1455 oC and forms a green chloride compound.Which of the following shows the position of this element in ihe Periodic Table?Suatu unsur melebur pada 1455 oC dan membentuk sebatian klorida berwarna hijau.Manakahyang berikut menunjukkan kedudukan unsur ini dalam Jadual Berkala?

Diagram 12 shows the energy profile diagram for the decomposition reaction ofpotassium chlorate V).Rajah 12 menunjukkan gambar rajah profil tenaga bagi tindak balas penguraiankalium klorat Y).

EnergyTenaga

Diagram 12Rajah 12

which of the following is true about curve R and curve s?Manakah antara berilrut benar mengenai lenglamgR dan tengkung s?A Curve R occurs at a higher temperafure than curve SLenglatngR berlalru pada suhu yang lebih tinggi berbanding lengtamg SB Curve S is produced when less pressure is applied to potassiumchlorate V)Lenglamg S dihasilkan opabila tekanan yang lebih rendah dikenakan ke atas kaliumklorat Y)C Curve R is produced by using a larger amount of potassium chlorate V)LenglamgR dihasilkan dengan menggunakan kalium klorat Y) yang lebih banyakD Curve S is produced by adding manganese IV) oxide

Lenglamg s dihasilkan dengan menambahkan mangaz IV) otrsida

2KClOg

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Metal KLogam K

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ElementY forms ion Y-. The electron arrangement of ion Y- is 2.8.Where is the position of element Y in the Periodic Table?Unsur Y membentuk ionY-. Susunan elektron bagi ion Y ialah2.8.Manakah kedudukan unsur Y dalam Jadual Berkala?A Group 1B Group 2C Group 17D Group 18Diagram l3 shows the apparatus set-up of a simple voltaic cell.Rajah 13 menunjukkan susunan radas bagi satu sel kimio ringkas.

Metal LLogam LSulphuric acidAsid sulfurik

Diagram 13Rajah 13

Which metals could be used as K and L to produce the highest voltmeter reading?Logam manakahyang boleh digunakan sebagaiK dan L untik menghasilkan bacaanvoltmetertertinggi?I ZincZinkII IronFerumm CopperKuprumIV AluminiumAluminium

I and III and IIIII and IIIIII and IV

ABCD




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Diagram l5 shows an apparatus set-up to identify the cations present inmixture X.Raiah 15 menuniukkan susunan radas untuk mengenal pasti kation yang hadir dalam campuranX.Red litmus papeKertos litmus merah

X + NaOHLt

HeatPanaskan

Diagram 15Rajah 15When mixture X is heated with sodium hydroxide solutior , green precipitate isformed and red litmus paper turns blue.Which cations are present in X?Apabila campuranX dipanaskan bersama larutan natrium hidrol


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t6Table 2 shows the information about the reactants used in Experiment I and II.JadualZ menunjukkan maklumat mengenai bahan tindak balas yang digunakan di dalqmEl


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t732 Diagram 16 shows the process of producing compound M.Rajah 16 menunjukkan proses penghosilan sebatianM.

Ethanol , CzHsOHEtonol

Acidified KMnOaKMnO4 berasid

Diagram 16Rajah 16V/hich of the following is the structural formula of compound M?Manakah antara berikut merupakanformula struktur bagi sebatianM?oA cH3 [- oHB CHz : CHz

ocll cHs- c- o'- cHsD cHs- cHz- cH2- oH

33 Which of the following can be converted to polymer through polymerisation?Manakah antara berikut boleh ditukarkan kepada polimer melalui tindak balas pempolimeran?o,ilH-G-O-CHl

cH2: C-CHIH

-CHl

A IandIIB II and IIIC II and IVD III and IV

3 Hak Cipta Majlis Arnanatr

II

ry

(},IIEN_C_OH

CH^- C - CH'Lr'cHr

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Iron II) nitrateFerum II) nitrat

35

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Diagram 17 shows the apparatus set-up to investigate the reaction betweeniron Il) nitrate and liquid bromine.Rajah 17 menunjukkan susunan radas untuk mengkaji tindak balas antara larutanferum Il) nitratdan air bromin.

CarbonKarbon

Liquid bromineAir brominNitric acidAsid nitrik

Diagrarn 17Rajah 17What is the colour change for both of the solutions?Ap akah perub ahan w arna b agi kedua-dua larut an?

Iron I) nitrate solutionLarutan ferum Ill nitrot Liquid bromineAir brominBrown to greenPerans kepada hiiau Colourless to brownTanp a w arna kepada DeranpGreen to brownHiiau kepada Derans Brown to colourlessP erang kepada tanpa warnaBrown to green

Perans kepadahiiau Remains brownKekal DeranpGreen to brownHiiau kepada Derans Remains colourlessKekal tanpawarna

Element Q is below bromine in Group 17 of the Periodic Table.Which pair correctly describe the reaction between Q and sodium?Unsur Q berada di bawah bromin dalam Kumpulan 77 Jadual Berkala.Manakah antara pasangan berikut benar mengenai tindakbalas antaro Q dan natrium?

ABCD

ABCD

Formula of the compoundFormula sebatian Reactivity compared to bromineKereaktifan b erb andfug dengan brominNaQ less reactivekurang reahifNA2Q less reactivekurangreaWifNuQ, more reactivelebih reaWifNaQ more reactivelebih reaWif

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36 Temperature of water rises by 30.0'C when 0.929 propanol is used to heat200 cm3 of water.What is the heat released in the reaction?[specific heat capacity :4.2J g-'oc-', density of solution - 1.0 g cm-3 ]Suhu air meningkat sebanyak 30 oC apabila 0.92 g propanol digunakan untuk memanaskan200 cm3 air.Berapakah nilai haba yang dibebaskan di dalam tindak balas tersebut?LKapasiti haba spestfik:4.21*-l og-1, ketumpaton larutan: 1.0 g cm-3]A 1t5.92 lB 5796 Ic 25200 lD 1260000 J

37 Which of the following has the smallest volume of gas at room condition?[Molecular mass /g mol-l : NH3 : lTiHzO : 18, CO :28i NOz :46,1 mol of any gas occupies 24 dm3 at room condition]Manakah antara berikut mempunyai isi padu gas terkecil pada keadaan bilin[Jisim molar/ g mol-r; HzO :18, CO=28; NHr : 17;NO, :46,I mol sebarang gas menempati 24 dm3 pada keadaan biliklA 42.0 g of carbon monoxide42.0 g karbon monol


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39 Which of the following chemical compound is the best fertilizer for growth ofplants?[Relative atomic mass : N : 14 , Relative molecular mass: CaOIOg)2: 164,NI{4NOr: 80, NH+)zSO+ : 132, NH+):PO+: l49lManakah antara bohan kimia berilan merupakan baja paling baik digunakan untuk tumbesarantumbuhan?lJisim atom relatif. N = 14 , Jisim molekul relatif : Ca NO3) 2: 164, NH4NO3: 80,CNIH4)2SO a: 132, OIH4)3PO a: l49lA Calcium nitrate, CaQ.{O3)2Kalsium nitratB Ammonium phosphate, CNH+):PO+Ammonium fosfatC Ammonium sulphate, NH+)zSO+

Ammonium sulfatD Ammonium nitrate, NF{+NOgAmmonium nitrat

4A Label on bottles of glucose, sodium chloride and sodium hydroxide wereaccidentally removed. A student tested a sample from each bottle and results areshown in Table 3.Label botol bagi glukosa , natrium Horida dan natrium hidrol


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2tDiagram 18 shows the apparatus set-up for electrolysis of 1.0 mol dm-3 copper Il)nitrate solution using copper electrodes.Rajah 18 menunjukkan susunan radas bagi elektrolisis larutan kuprum Il) nitrat 1.0 mol dm-3m enggunqkan el ektr o d kuprum.

CopperKuprum

Copper Il) nitrate solutionKuprum Il) nitratDiagram 18Rajah 18

Which of the following arc observation at the anode and cathode?Manakah antara berikut merupakan pemerhatian di anod dan katod?At the anodeDi anod At the cathodeDi katod

Electrode become thinnerElektrod menjadi nipis Brown solid depositedPepejal perang terenapElectrode become thinnerElektrod menjadi nipis Colourless gas releasedGas tidak berwarna terbebasGreenish yellow gas releasedGas kuning kehijauan terbebas Brown solid depositedPepejal perang terenapColourless gas releasedGas tidak berwarna terbebas

Colourless gas releasedGas tidak berwarna terbebas

Table 4 shows information about three chemical cells.Jadual4 menunjukkan makluntat bagi tiga sel kimia.

Table 4Jadual 4

Arrange the metals from the most electropositive to the least electropositive.Susun logam tersebut daripada yang paling elektropositif kepada yang paling latrangelektropositif,

A

CD

BD

AC

H,G,F,EF,G,H,E

E,G,H,FE,H,G,F

Chemical cellSel kimia

Pair of metal electrodesPosangan elektrod lo gam

Voltage / VVoltan /Y Positive terminalTerminal positifI E,F 2.7 FII E,G 1.5 G

m G,H 0.6 G

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10 cm320 cm350 cm390 cm3

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What is the concentration of hydroxide ions when 8.55 g solid barium hydroxideis dissolved in water to produce2l} cm3 of solution?[Molar mass of Ba(OH)r: l7t gmol-r]Apakah kepekatan ion hidroksida apabila 8.55 g pepejal barium hidroksida dilarutkan dalam oiruntuk menghasilkan250 cm3 larutan ?lJisim molar Ba(OH)z : 17 | g molrlA 0.40 mol dm-3B O.2O mol dm-3C 0.05 mol dm-3D 0.01 mol dm-Diagram 19 shows two volumetric flasks containing2.0 mol dm-3 of hydrochloricacid and0.2mol dm-3 hydrochloric acid.Rojah 19 menunjukkan dua kelalang volumetri yang mengandungi asid hidroWorik 2.0 mol drn-3dan asid hidroklorik 0.2 mol dm-3. qF

2.0 motdm-3 E A too cm3 of o.2mot dm-3hug;2htoncacid - Efl l{i:T,Y:;i;::f,,,,r2.0 mol dm-3 0.2 mol dm-3

Diagram 19Rajah 19What is the volume of water needed to be added to prepare 100 cm3 of0.2 mol dm-3 hydrochloric acid from 2.0 mol dm-3 hydiochloric acid?Berapaknh isi padu air perlu ditambah untuk menyediakan 100 cm3 asid hidroHorik0.2 mol dm 3daripada asid hidroklorik2.0 mol dm 3?ABCD

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Diagram 20 shows a series of reaction involving salt V.Rajah20 menunjukkan siri tindak balas melibatkan garamy.+ Barium chloride solutionLarutan barium Horida White precipitate W

Mendakan putihW

ABCD

* Excess aqueous afitmonia,NH3Amm onia akues b erl eb ihan,Ntl3

White precipitate,dissolves in excess NH3Mendakan putih,

Iarut di dalam Nt\ berlebihanDiagram 20Rajah 20

Which of the following pairs represent solid V and precipitate W?Manakah antaro yang berikut mewakili pepejalY dan mendakanW?Salt VGarumY Precipitate WMendakan W

Lead(II) nitratePlumbum(Il) nitrat Zinc chlorideZink HoridaZinc sulphate

Zink sulfat Barium sulphateBarium sulfatZinc nitrateZink nitrat Barium chlorideBarium klorida

Aluminium sulphateAluminium sulfat Aluminium nitrateAluminium nitratTable 5 shows the total volume of gas collected for every 30 second in areaction.Jadual 5 menunjukkan jumloh isi padu gas terkumpul setiop 30 saat dalam satu tindak balas.

Time / sMasa / s 0 30 60 90 120Volume of gas/ cm3Isi padu gas/ cm3 0 w x Y Z

Table 5Jadual 5\Ie is the avtrago rate of reaction in the second minute?B.er4palrah kad* ptrata ttndak balas pada minit kedua?

cm3 s'l*Z-X t -rG;60m-8'

Z-Y ? -rcm-s'120-90Z?-r cm-s'120

B

D




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47 Diagram 21 shows the structural formula of compound G which formed from thereaction between compould E and F.Raiah2l menunjukkanformula struhur bagi sebatian G yang terbentuk daripada tindak balasontara sebatianE donF.Compound ESebatianE Compound FSebatianF

I+ollcHr- cHz - C -O - CHe -CHe- CHz - CHr

Compound GSebatian G

Diagrarn 2lRajah2lWhat is compound E and F?Apakah sebatianE danF?

Compound ESebatian E Compound FSebatianF

Butanoic acidAsid butanoik PropanolPropanol

Propanoic acidAsid propanoik ButanolButanolEthanoic acid

Asid etanoik PropanolPropanolEthanoic acidAsid etanoik ButanolButanol

48 Which of the following has the same number of atoms as in one mole of water,HzO?Manakah antara berikut mempunyai bilangan atom yang sama dengan satu mol air, H2O ?A I mol chlorine gas, Cl2I mol gas klorin, Cl2B T;:IffiIJ 1;Y,c '(;#r',il#i:;x'o''D % mol sulphur dioxide, SOz

% mol sulfur diolaida, SO2

4541/r Cipta Majlis AmarSULIT

A

CD




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49 Table 6 shows the method used to extract metal J, K and L from their ores.Jadual6 menuniukkan kaedah pengelcstrakan logam l,K danL daripada bijih masing-masing.MetaILogam MethodIfuedalt

J Reduction using carbonP enurunan menggunakan kar bonK ElectrolysisElektrolisisL Reduction by hydrogenP enurunan ol eh hi dr o gen

Tab1e 6Jadual 6

What is the correct arangement of the reactivity of metals in the ascending order?Apakah susunan yang betul bogi kereaktifan logam mengikut tertib menaik?A L,J,KB J,L,KC K,L,JD K,J,L

=g50 When 100 cm3 of 1.0 mol dm-3 hy,Cro hloric acid reacts with 100 cm3 of a1.0 mol dm-3 potassium hydrogen carbonate solution, the temperature decreased 3by OoC. o-What is the decrease in temperature for the reaction when 50 cm3 Pc)of 1.0 mol dm-3 hydrochloric acid reacts with 50 cm3of 1.0 mol dm-3 potassium 3hydrogen carbonate solution?Apabila 100 cm3 asid hidroktorik 1.0 mol dm3 bertindak balas dengan 100 cm3 larutan kaliumhidrogen karbonat 1.0 mol dm-', suhu berlatrang sebanyakO oC.Berapakah penurunan suhu bagi tindak balas apabila 50 cm3 asid hidroklorik 1.0 mol dm'3bertindak balas dengan 50 cm3 larutan kalium hidrogen karbonat 1.0 mol dm-3?A 0.1e ocB 0.5e ocC EOCD }EOC

END OF QUESTION PAPERKERTAS SOAI-AN TAMAT

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454112ChemistryPaper 2September20L32%how

Namg I ............. o........... o.... o. '." " t " t'

Indgx Number .............. o. t....... t. r..t.. t.

MAKTAB RENDAH SAINS MARASIJIL PELAJARAN MALAYSIATRTAL EXAMINATION2013

1.

CIIEMISTRYPaper 2

Two hours and thirty minutes

DO NOT OPEN THE QUESTION BOOKLETUNTIL BEING TOLD TO DO SO

Write your name and index number in thespace provided.Tuliskan nama dan angka giliran anda pada ruangyang disediakan.The question booklet is bilingual.Kertas soalan ini adalah dalam dwibahaso.Candidate is required to read the informationon page 28.Calon dikehendaki membaca maklumat di halamanZS-

www. myschoolchildren.com

2.

3.

Untuk ke gunaan p emerilcs aSection Question Fullmark Marks

A

I 92 93 t04 105 1l6 11

B7 208 20

C9 2010 20

TOTAL

CONFIDENTIAL

This booklet contains 28 printed pages.454112 @ 2013 Copyright Reserved MARA




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454U2

a)

Section ABahagian A[60 marl


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Forixaminer'sUse

1(axi)

1(6Xii)t_l1(bxiii)

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454112

(D) Diagram 1.2 shows a flow chart to produce fertilizer Z.Rajah 1.2 menunjukkan carta alir untukmenghasilkan bajaZ.

(i)

Haber ProcessProses Haberlfls,AmmoniaAmmonia

Diagram 1.2Rajah 1.2Name industrial Process X.Namalran Pros es in&tstri X.

I markl[1 markah]State two raw materials needed for industrial Process X.Nyatakan dua bahan mentahyang diperlukan dalam Proses industriX.I2

[2 marla)[2 markah]

with ammonia to produce fertilizer Z.balas dengon ammonia untuk menghasilkan baja Z.

(ii)

(iii) Sulphuric acid reactsName ferfilizer Z .Asid sulfurik bertindakNamakan baja Z.fl marklll markahl

[See next pageCONFIDENTIAL

Industrial Process XProses Industri XSulphuric Acid

Asid Sulfurik




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(iv) Detergent is also a productcleansing agent in hard water.Explain why.Detergen juga adalah produk asidberkesan dalam air liat.Terangkan mengapa.

of sulphuric acid and effectivesulfurik dan merupakan bahan penctrci

ll marklll narkahl

(v) During the manufacture of sulphuric acid, excess sulphur dioxidegas is released to the environment .How does sulphur dioxide gas cause pollution ?Semasa pembuatan asid sulfurik, gas sulfur diol


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ForExaminer sUse

2(b)

2(a)n2(c)(i)

2(c)(ii)

454U2

Diagram 2 shows part of the periodic Table of Elements.Rajahz menunjukkan sebahagian daripada Jadual Berkala (Jnsur.

Diagram2Rajah 2

Based on DiagramZ:Berdasarkan Rajah2:(a) What is the physicat state of chlorine at room temperature?Apakah keadaanfizikunsur Horin pada suhu bitik?

ll marlcl11 markahj

(b) choose one element that can form an amphoteric oxide?Pilih satu unsur yang boleh membentuk oksida amfoterik?

ll marklll markah)(c) (i)

(ii)

Write the electron arrangement for argon atom.Tulis susunan elektron bagi atom argon.

ll marklll markahlExplain why argon exists as monoatomic gases.Terangkan mengqpa argonwujud sebagai gas monoatom.

ll marklfi markahl

[See next pageCONFIDENTIAL4541D @ 2013 Copyright Reserved MARA




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454112 ForExaminer's.

(d) Carbon bums in excess oxygen to form carbon dioxide gas.Karbon terbakar dalam oluigen berlebihan untuk menghasilkan gas karbon diolsida.(i) Explain why carbon dioxide gas has low boiling point.

Terangkan mengapa gas karbon diol


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ForExaminer sUse

3(a)(i)

3(aXiv)

4541/2

Diagram 3.1 shows the apparatus set-up of a voltaic cellRaj ah 3 .l menunjukkan susunan radas bagi suatu sel voltan p .

Magnesi

P.

CopperKuprumagnesium

Magnesium nitratesolutionLarut an m agnes ium nitr at

Based on Diagram 3.1,Berdasarkan Rajah 3.1,(i)

Porous potPasu berliangCopper(Il) sulphatesolutionL arut an laryrum(l[) s ulfat

Cell PSelP

Diagram 3.1Rajah3.l(a)

What is the function of porous pot?Apakah fungsi pasu berliang)

11, marklI markah)(ii)

(iv)

State the negative terminal of the voltaic cell.Nyatakan terminal negatif bagi sel voltan.

I marlclfl markahl(iii) Explain your answer in (a)(ii).Terangkan jautapan anda dalam (aXii).

[1 mark)I markahJName the type of reaction that occurred at copper electrode.Namakan jenis tindak balas yang berlalru di elektrod kuprum.

fl mark)l1 markahJ[See next pageCONFIDENTIAL

l:]::I -::t;::I -r\tr

;::li=l::J\:J

-lili]

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(b) Diagram 3.2 shows an incomplete ceIl Q to electroplate an iron ring withsilver.Rajah 3.2 menunjukkan Sel Q yang tidak lengkap untuk menyadurkan cincin besidengan argentum.

MagnesiMagnesium ilver nitratesolutionLarutan

argentum nitratMagnesium nitratesolutionLarutan magnesiumnitrateDiagram 3.2Rajah3.2

Complete the diagram of Cell Q in the space provided.Lengkapkan rajah bagi Sel Q dalam ruangyang disediakan.State one observation in CeII Q after 30 minutes.Nyatakan satu pemerhatian dalam Sel Q selepas 30 minit.

Kuprum Copper(Il) sulphateKuprum(Il) sulfut

454v2

12 marksl12 markahl

ForExaminer's

I

1,,,,,,,

t:t:lr::llr r -I[r

(i)

(ii)

ll marklll markahl(iii) Write the half equation for the reaction occurred at the iron ring

Tulis setengah persamaan bagi tindak balas yang berlalcu pada cincin besi.

(iv) What happens to the concentration of silver ions in Cell Q.Explain your answer.Apakahyang berlaku pada kepekatan ion argentum dalam.Sel Q.Ter angkan j au ap an anda.

ll marklll markahl

12 markslp markahl

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4 Three experiments, I , II and III are cuuried out at room condition to investigatefactors affecting the rate of reaction between nitric acid and zinc metal.Tab1e 4 shows the reactants and conditions of the reaction.Tiga eksperimen, I ,II dan III dijalankan untuk mengkaji faWor yqng mempengaruhi kadar tindakbalas antara asid nitrik dengan logam zink.Jodual4 di bawah menunjulckan bahan-bahan dan keadaan tindak balas yang terlibat.

ExperimentEksperimen

Reactant mixture in the experimentCampuron bahan dalom eksperimenTimeMasa(s)

Volume of gasIsi padu gas(cm3)

4.0 g zinc granules4.0 g ketulan zink

20.0 cm3 nitric acid 1.0 mol dm-320.0 cm3 asid nitrik I.0 mol dm-3

60 50

II

4.0 g zinc powder4.0 g serbuk zink

20.0 6m3 nitric acid 1.0 mol dm-320.0 cm3 asid nitrik 1.0 mol dm-3

45 50

m20.0 cm3 nitric acid 1.0 mol drn-3 +copper(Il) sulphate solution20.0 cm3 asid nitrik 1.0 mol dm 3 +larutan kuprum(Il) suW

4.0 gzincpowder4.0 g serbuk zink

25 50

Table 4Jadual 4

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State the meaning of th e rate of reaction.Nyatakan maksud kadar tindak balas.

$ mark)I markahlState the factor that differentiate the rate of reaction betweenExperiment I and II.Nyatakanfaktor yang membezakan kadar tindqk balas antaraEl


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ForExaminer s(/se

a@)(ii)

4(A[]

(ii)454U2

Calculate the average rate of reaction for Experiment I for the firstminute .Hitung kadar tindak balas purata bagi tindak balas dalam El


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454U2 ForExaminer sUsestudent carried out an experiment to determine the value of heat ofneutralisation as shown in Diagram 5.

Seorang pelajar menjalankan eksperimen untuk menentukan nilai haba peneutralotseperti ditunjukkan dalam Rajah 5.

ThermometerTermometer50 cm3 2.0 mol dm-3 hydrochloric acid50 cm3 asid hidroHorik2.0 mol dm3+50 cm3 2.0 mol dm-3 potassiumhydroxide solution50 cm3 larutan kalium hidrollel=lt=l Table 5Jadual 5

What is the meaning of heat of neutralisation?Apakah malcsud haba peneutralan?

-_tFJ

Initial temperature of hydrochloric acidSuhu awal asid hidroklorik 29.0 0cInitial temperature of potassium hydroxide solutionSuhu qwal larutan kalium hidroksida 29.0 0cHighest temperature of the mixtureSuhu tertinggi campuran 41.5 0C

(b)ll marklll markahlCalculate:Hitung:

(i) heat released during the experiment.[Specific heat capacity of solution is 4.2 J g-1 oc-t , density ofsolution is 1.0 g cm-3]haba yang dibebaskan semasa elcsperimen.lMuatan haba tentu larutan ialah 4.2 I g-l oc l , ketumpatan larutan ialah1.0 g crn-31

s(a)

[]

5( XD[]12 marlclp, markahl

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454t/2

fl mark)fi markah)

f2 marlcs)f2 markahl

f2 marksl12 markahl


ii) the number of moles of hydrochloric acid.bilangan mol asid hidroklorik.

iii) the heat of neutralisation.haba peneutralan.

Draw an energy level diagram for this reaction.Lukis rajah aras tenaga bagi tindak balas ini.

c)

For

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Table 6.1 shows the result from Experiment I and II to investigate the acidicproperties of hydrogen chloride gas.Jadual 6.1 menuniul:kan keputusan daripada Elaperimen I dan Il yang dijalankan untuk mengkajisifot asid gas hidrogen klorida.

(a)

Table 6.1Jadual6.lBased on Table 6.1 ,Berdasarkan Jodual 6.7,,(i) Narrre the ion whioh,change moist blue litmus paper to ,r.ed.Namakan ,ion yangmenukarkan kertas litmus biru lembap,ke merah.

11 rnarklf7 markahl

,[See next pageCONFIDENTIAL

ExperimentEksoerimen Apparatus set-upSusunon radas ObservationPemerhatian

HClret .+/\Blue litmuspaperKertas litmusbiru

Calcium carbonateKalsium karbonat

Colourlessgas bubbles

Gelembung gastidak berwarna

Moist bluelitmus papertur-ns to redKertas litmusbiru lembapbertukar kemerah

u

HCIGI-+ ryNo gasbubbles

Tiada gelernbunggas

Moist bluelitmus paperremainsunchangedKertas litmusbiru lembaptidak berubah

6da)G)

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(ii) Explain why there are no gas bubbles and the moist blue litmuspaper remains unchanged in Experiment II.Terangkan mengapa tiada gelembung gas dan kertas litmus birulembap tidak berubah dalam Eluperimenll.

ForExaminer sUse

6(6)(ii)L]

(i)

(ii)

i

EFU).9laJF

(b) Table 6.2 shows the molarity and pH valueacid L. Both are monoprotic acid.Jaduol 6.2 menunjukkan kemolaran dan nilai pH bagiKedua-duanya adqlah asid monoprotik

12 markslp markah)

of hydrochloric acid andasid hidroklorik dan asid L.

Table 6.2Jadual6.2

Based on the information in Table 6.2, suggest acid L.Berdasarkan makJumat dalam Jadual6.2, cadangkan asidL.

[1 mark]ll markahl

Explain why the pH value of hydrochloric acid is lower than acidL?Terangkan mengapa nilai pH asid hidroHorik lebih rendah daripada asidL?

l2 marlcslfZ markahl


SubstanceBahon Hydrochloric acidAsid hidroklorik Acid LAsidLMolarityKemolaran 0.1 mol dm-3 0.1 mol dm-3

pH valueNilai pH I 4

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Use

6(cXi)

6(c)(iD

4541,/2

(c) 1.0 g of calcium carbonate reacts completely with excess hydrochloricacid.1.0 g kalsium karbonat bertindak balas lengkap dengan asid hidroklorik berlebihan.

(i) Write a balanced chemical equation for the reaction.Tulis persamaon seimbang bagi tindak balas ini.lZmarks)f2 markah)

Calculate the volume of carbon dioxide released in the reaction.[Relative atomic mass: C : 12; O : 16; Ca: 40; I mol of any gasoccupies 24 dm3 at room conditions]Hitung isi padu karbon diolrsidayang dibebaskan dalam tindakbalas ini.lJisim atom relatif: C: 12; O : 16; Ca: 40; I mol sebarang gas menempati 24dm3 pada keadaan bitikl

13 marksl[3 markah]

(ii)

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Table 7Jadual 7

(i) What is the physical state of W at room condition?Explain your answer. 12 marlcslApakah keadaanfizik bahanW pada keadaan bilik?Terangkan jawapan ando. t2 markah)

(ii) Sketch a graph of temperature against time for the heating ofsubstance W from 90 oC to 140 oC.Show the melting point of substance W on your graph.

13 marlcsJLakarkan graf suhu melawan masq bogi pemanasan bahanW daripada 900Chingga 140 oC.Tunjukkan takat lebur bahanW pada grafanda.

13 markahl


Section BBaltagianB120 marlcslf20 markahl

Answer any one question from this section.Ja\yqb mana-mana satu soalan daripada bahagian ini.7 ( ) Table 7 shows the melting point and boiling point of substance W.Jadual T menunjukkan takat lebur dan takat didih bagi bahanW.

Melting point C ClTakut lebur ( C) Boiling point CCITakat didih ( C)119 444

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Diagram7.3 shows the apparatus set up of two experiments to study therate of diffrrsion in water at different temperatures.Raiahl.3 menunjukkan susunan radas bagi dua eksperimen untuk mengkaji kadarresapan di dalam air pada suhu yang berbeza.

Diagram 7.3Rajah7.3

State the type of particles present in the solution when purple colour isobserved after one hour.Explain the observation based on the kinetic theory of matter.15 markslNyatakanienis zarah apabila larutan yang berwarna ungu diperhatikan selepas satu jam.Ter an gkan p em er h at i an b er das ar kan t e or i kinet ik j ir im.[5 markah]


Il,,

Itsa

ExperimentEksoerimen Apparatus set-upSusunan radas ObservationPemerhatian

IAt 30 0CPada suhu

30 0cAfter t hourSelepas I jum

WaterPotas s ium manganate VlDcrystalsHab lur kal ium m anganat Yll)

Purple colour ofpotassiummanganate VIDcrystal spreadonly at thebottom of waterWarna ungt kaliummanganat YII)merebak hanya dibahagian bawah oir

IIAt 80 0CPada suhug0 0c

After I hourSelepas I jam---=-+Water

Potassium manganate Vll)crystalsHab lur kalium manganat Y Il)

Purple colour ofpotassiummanganate VII)crystal spreadthroughoutwaterWarna ungu kaliummanganat YII)merebak ke seluruhair

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8 Diagram 8 shows two organic compounds S and T. www.myschoolchildren...qornRajahS menunjukkan dua sebatian organiks danT.

Diagram 8Rajah 8(a) Based on Diagram 8, for each compound s and r state the :(i) general formula(ii) functional group(iii) homologous series 16 martrsJ

Berdasarkan Rajah 8, untuk setiap sebatian s danT nyatakan :(i) formula am(ii) kumpulan berfungsi(ii, siri homolog [6 markah)(b) When 1 mole of compound T undergoes combustion reaction in excessoxygen, it produces carbon dioxide, water and releases 2676 kJ of heat.Calculate the volume of carbon dioxide gas produce d it 669 kJ of heat isreleased in the reaction.

[1 mol of any gas occupies24 dm3 mol-l at room condition] 15 marl*lApabila I mol sebatianT terbakar dalam oksigen berlebihan, ia akan menghasilkankarbon diol


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Natural rubber is obtained from latex which is a white fluid secreted byrubber tree.Thble 8 shows the results of experiments when latex is exposed to air andwhen ammonia solution is added to it.Getah asli diperoleh daripada latelcs yang merupakan bendalir putih didapati dari pokokgetah.Jadual S menunjul*an keputusan eksperimen apabila lateks didedahkan ke udara danapabila larutan ammonia dimasukkan ke dalamnya.

Table 8Jadual 8

Explain why there is a difference in the results of the experiments.[6 marks]

Terangkan mengapa terdapat perbezaan bagi keputusan eksperimen ini.16 markahJ

Explain how vulcanization can increase the elasticity of naturalrubber. [3 marks]Ter angkon bagoim an a pr os es p emvulkanan b o I eh m eningkatkankekenyalon getah asli. [3 markah]

,[See next pageCONFIDENTTAL

c)

i)

ii)

ExperimentEksperimen Apparatus set-upSusunan radas

Latex exposed to airLatelrs didedahkan ke udara White lumpGumpalan putih

IILatex * ammonia solutionLatelcs + larutan ammonia White fluid remainsBendalir putih kekal

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9 (a)

4541D

Section CBahagian C ,120 markslp0 marlcah)

Answer any one question from this section.Jm,ab mana-mana satu soalan daripada bahagian ini.

Rajah9 menunjul*an senarai larutan-larutan garam di dalam malqnal.

Diagram 9Rajah 9

Name the solutions from the list that will react with sodiumhydroxide solution to form white precipitate and dissolve in excessof sodium hydroxide solution. f3 marlulNamakan larutan daripada senarai yang akan bertindak balas dengan larutannatrium hidroksida membentuk mendakan putih yang larut dolam larutannatriwn hidroks ida b erl ebihan. 13 markahl

(ii) Based on your answer in 9(a)(i), name one of the white precipitateformed and write an ionic equation for the formation of the whiteprecipitate. p marksl

(i)

(iii)

Berdasarkan jawapan anda dalam 9(aXr), namakan satu mendakan putih yangterbentuk dan tuliskan satu persamaan ion bagi pembentulcan mendakan putih

12 markahJtu.

Choose two solutions from the list in Diagram 9 that can reactto form an insoluble salt.Describe how this insoluble salt can be prepared in the laboratory.Your answer should include the following:I Frocedure of the experiment. Chernical equation involved. {8 ruarkslPilth daalarutan daripada senarai dalam Rqjah9 yangboleh bertindakbalosmetnb*t* .saatu gar etm t ak terlarutkaflI{urailcan bagaitnana garam tak terlarutkan ini disedialwn di dalam malsnal.Jawqan anda perlu mengandungi perkara berilcut:. Prosedur elaperimen

. Persatnaan kimiayang terlibat [8 markah],[See nextpage,COI.{FIDENTIAL

Aluminium nitateAluminium nitratLead(II) nitratePlumbum(Il) nitrat

Calcium nitrateKalsium nitratZinc nitrateZinknitrat

Magnesium sulphateMagnesium sulfatSodium carbonateNatrium kctrbonat

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D) The label on two reagent bottles are removed. One of the bottlecontains zinc chloride solution and another one contains zinc sulphatesolution.Describe chemical tests that can be used to identiff the cation and anionsin each solution. t7 marksfLabel pada dua botol reagen kimia telah tertanggal . Salah satu daripada botol itumengandungi larutan zink Horida dan satu lagi mengandungi larutan zink sulfat.Huraikan ujian-ujian kimia yang boleh digunakan untuk mengenal pasti kation dananion di dalam setiap larutan. [7 markah]

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(b)

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Diagram 10.2 shows an apparatus set up to investigate the effect of twodifferent metals M and N on the rusting of iron.Rajah 10.2 menunjuklcan susunan radas bagi mengkaji kesan dua logam berbezaM dan N ke atas pengaratan besi.Test tube ITabung uji I Test tube IITabung uji lI

Iron nailPaku besiMetal MLogamM

Metal NLogamN

Jelly solution * potassium hexacyanoferrate(Il solutionLarutan gel + larutan kalium heksasianoferattlll)Diagram 10.2Rojah 10.2

The result of this experiment after a few days is shown in Table 10.Keputusan eksperimen selepas beberapa hari adalah seperti dolam Jadual 10.

Pair of metalsPasangan logam

ObservationPemerhatian

1", M Blue spotsTompok biruFe,N No changeTiada perubahan

Table 10Jadual l0Based on Table 10, suggest the names of metal M and N.Explain why there is a difference in the observations in both test tubes.

l8 morks)Berdasarkan Jadual 10, cadangkan nama logamM danN.Terangkan mengapa terdapat perbezaan pemerhatian dalam kedua-dua tabung ujitersebut.

l8 markahlIron is a metal that rusts easily when exposed to air and humidity.With a labeled diagram, explain how the rusting of iron occurred.

16 markslBesi adalah logam yang mudah berkarat apabila terdedah kepada udaradan kelembapan.Dengan gambar rajah berlabel , huraikan bagaimana pengaratan besi berlaht.l ma .ah)

END OF'QUESTION PAPERKERTAS SOAL/IN TAMAT

==aC)ood-)o-a=bo3

(c)

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Periodic Table of Elements454tn

181H

Hydrogeu1 2 13 14 15 16 17

2HeHelium4

3LiLithium

7

4BeBerylllum9 Key:hoton NumberSymboIName of elementRelative Atomic Mass

3 10 11 12

5BBoron11

6CCarbouL2

7NNltrogen

L4

8oOxygen

16

IFEluortne

19

10NeNeon

2011NaSodium23

L2MgMagneslum.24

13AIAluminum27L4Si

Silicon?B

15PPhosphorus31

16S

Srilfru32

L7CICblorine3s.5

18Arfugon4019K

Potasslum40

2ACaCalcium40

21ScScmdlu4522TiIltoium4B

23vVanadiun5124CrCbroulum52

25MnManganese55

26FeIron5627Co

Cobalts9

28NiNtckel59

29CuCopper64

30ZnZlnc65

31GaGalllum70

32GeGermanlum73

33AsArsenic7S34Se

Selenium79

35BrBromine

BO

36KrKrlpton8437Rb

RubtdlumB6

38SrStrontium88

39YYttrium8940ZrZhcmtum91

4LNbMobfim.9342Mo

Itlolybdenum96

43mltcTechnetlum9B44Ru

Ruthenium101

45RhRhodium103

46PdPaIIadium106

47AgSilver108

48CdCadmlumLt2

49InIndlum11550SnTin119

51SbAntimonyL2252TeTdlurtum128

s3IIodlneL27

s4XeXenon131

55CsCesium133

56BaBarfumL37

57LaLanthailrm139

72HfHafoiumL79

73TaTantalun18174wTun tlr184

75ReRhentum18676Os

Osmium190

77IrIridiumL92

78PtPlattraum19s

79AuGoldr97

80HgMercury20L

81TIThallium204

82PbLead207

83BiBtsmuth209

84PoPolonlum209

B5AtAstatiJoe2LO

86RnRadon222

87FrFranclum223

88RaRadlum226

89AcActtrftm227454112 @ 2AI3 Copyright Reserved I\1[ARA 27 [See next pageCONFIDENTIAL




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INFORMATION FOR CANDIDATESMAKLUMAT ANTAK CALON

l. This question paper consists of three sections: Section A, Section B andSection C.Kertas soalan ini mengandungi tiga bahagian: Bahagian A, BahagianB dan Bahogian C.

2. Answer all questions in Section A. Write your answers for Section A in thespaces provided in the question paper.Joyab semua soalan dalam Bahagian A. Tuliskan jawapon bagi Bahagian A dalam ruang yangdisediakan dalam kertas soalan.

3. Answer one question from Section B and one question from Section C. Writeyour answers for Section B and Section C on the answer sheets provided. Answerquestions in Section B and Section C in detail. You may use equations, diagrams,tables, graphs and other suitable methods to explain your answer.Jawab satu soalan daripada Bahagian B dan satu soalan daripada Bahagian C. Tuliskanjawapan bagi Bahagian B dan Bahagian C pada kertas jawapan yang dibekalkan. JawabBahagian B dan Bahagian C dengan terperinci. Anda boleh menggunakan persamaan, gambarrajah, jadual, graf dan cara lainyang sesuai untuk menjelaskan janapan anda.

4. The diagrams in the questions are not drawn to scale unless stated.Rajah yang mengiringi soalan tidak dilukiskan mengikut skala keanli dinyatakan.

5. Marks allocated for each question or part question are shown in brackets.Markah yang diperuntulckan bagi setiap soalan atau ceraian soalan ditunjukkan dalamkurungan.

6. Show your working, it may help you to get marks.Tunjukkan kerja mengiro, ini membantu anda mendapatkan markah.7 . If you wish to cancel any answer, neatly cross out the answer.

Sekiranya anda hendak membatalkan sesuatu jawapan, buat garisan di atas jawapan itu.8. The Periodic Table of Elements is provided onpage27.

Jadual Berkala Unsur disediakan di halaman2T.9. You may use a scientific calculator.

Anda dib enar kan m en ggunakan kalkul ato r s aint ifik.10. The time suggested to complete Section A is 90 minutes, Section B is 30 minutesand Section C is 30 minutes

Masa yang dicadangkan untuk menjawab Bahagian A ialah 90 minit, Bahagian B ialah 30 minitdan Bahagian C ialah 30 minit.11. Hand in all your answer sheets at the end of the examination.Serahkan semua kertas jawapan anda di akhir peperiksaan.

r.tta,Fb.

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Name : Class : ... .COI\'FIDENTIAL4s41t3ChemistryPaper 3September20t31 hours MAKTAB RENDAH SAINS MARASIJIL PELAJARAN MALAYSIATRTAL EXAMINATION2013

CHENIISTRYPaper 3

One hour and thirty minutes

DO NOT OPEN Trrrs QUESTTON BOOKLET UNTIL BErNG TOLD TO DO SO

1.

z.

3.

Write down your name and class inthe space providedTuliskan nama dan kelas anda pada ruangyang disediakan.The question booklet is bitingual.Buku soalan ini adalah dalam dwibahasa.Candidates are required to answerall questions,Calon dikehendaki menjawab semuasoalan

For Examiner's Use

Question FullMark Mark1 18

2 15

3 17

Total 50

www, myschoolchildren.com

This question booklet has 10 printed pages arrd2 unprinted pages[See next pageCONFIDENTIAL

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ForExaminer sUse

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Answer all QuestionsJawab semua soalanDiagram 1.1 shows the apparatus set-up for an experiment to study the hardness ofpure copper by using 1.0 kg weight.Rajah 1.1 menunjukkan susunan radas bagi elrsperimen untuk mengkaji kekerasan laqrum tulendengan menggunakan pemberal I.0 kg.

Meter rulePembaris meter

ThreadBenangWeightPemberat

Retort standKaki retoi,t

Step ILangkah IStep 2Langkah2

Step 3Langkah3Step 4Langkah 4Step 5Langkah 5

Step 6Langkah 6

Steel ball bearingBebola keluli

Cellophane tapePita pelekatCopper blockBlok kuprum

Diagram 1.1Rajah l.lThe experiment was carried out according to the following steps:Elap er im e n t e I ah dij a I a nka n s ep er t i I an gka h- I a n gka h b er i kut :

A steel ball bearing is taped onto a copper block.Bebola keluli dilekatkan di atas blok kuprum.A 1 kg weight is hung at a height of 50 cm above the copper block asshown in Diagram 1.1.I kg pemberat digantung pada ketinggian 50 cm di atas blok kuprum seperti ditunjukkandi dalam Rajah l.lThe weight is allowed to drop onto the steel ball bearing.Pemberat dijatuhkan ke atas bebola keluliThe diameter of the dent made on the copper block is measured.Diameter lekuk yan g t er bentuk di at as b lok kuprum diular.Steps 1 to 4 are repeated on two other parts of the copper block in order toobtain an average value for the diameter of dents formed.Langkah I hingga 4 diulangi di atas dua bahagian lain di permukaan blok fuprum untukmemperoleh nilai purata bagi diameter lekukan yang terhasil.Steps I to 5 are repeated by replacing the copper block with bronze block.Langkah I hingga 5 diulangi dengan menggantikan blok kuprum dengan blok gangsa.

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Type of blockJenis blok

Diameter of dents / mmDiameter lelatk / mm Average diameter of dent / mmPurata diameter lekuk / mm

I II mCopperKuprum 3.60 3.50 3.70 3.50BronzeGangsa 2.s0 2.45 2.55 2.50

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(a)

Table I . 2 shows the recorded diameter of dents formed on the blocks.Jadual 1.2 menunjukkan rekod bacaan diameter lekuk yang terhasil di atas kedua-dua blok.

Table 1.2Jadual1.2Complete Table 1.3 based on the experiment.Lengkaplcan Jadual 1.3 berdasarkan eksperimen ini.

Table 1. 3Jadual 1.3

State the hypothesis for this experiment.Nyatakan hipotesis untuk eksperimen ini.

[6 marks]

ForExantiner sUse

L(a)

1(b)(b)

Type of variablesJenis pemboleh ubah Action to be takenTindakan untuk diambil(i) Manipulatedvariable :

P em b oleh ubah dimanipul as ikan : (ii) Method to manipulate variable :C ar a mem anipul as ikan p emb o le h ub ah:

(iii) Responding variable :Pemboleh ubah bergerak balas:

(iv) What to observe in the respondingvariable :Apa yang diperhatikan bagi pemboleh ubahbergerak balas

(v) Controlled variable :Pemboleh ubah yang dimalarkan: (vi) Method to maintain the controlledvariable :

Cara menetapkan pemboleh ubah yangdimalarkan:

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ForExaminer s

Use1(c)

\a

1(e)

4s4

c) Based on the datain Table 1.2, state the inference of the experiment.Berdasarkan data dalam Jadual 1.2, nyatakan inferens bagi el


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Diagram 2.1 shows the apparatus set-up to construct the Electrochemical Series.The voltage produced when copper and magnesium electrodes are dipped into thecopper(Il) sulphate solution is measured. The experiment is repeated by replacingmagnesium with aluminium and zinc.Raiah2.l menunjukkan susunan radas yang digunakan untuk membina Siri Elektrokimia.Voltan yang dihasilkan apabila elektrod latprum dan magnesium dicelup ke dalam larutan kuprum(Il)sulfat diulatr. Eksperimen ini diulangi dengan menggantikan magnesium dengan aluminium dan zink.

MagnesiumMagnesium

Copper and MagnesiumKuprum dan magnesium

CopperKuprum

Copper and zincKuprum dan zink

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Copper(Il) sulphate solutionLa r ut a n kup r u tn(ll) s u lfa tDiagram 2.1Rajah2.l

(a) Diagram 2.2 shows the readings of three voltmeters each using different metalspaired with copper.Rai ah 2.2 menunjukkan t iga bacaan vo ltmet er yang menggun akan lo gam b erlainanberpas angan dengan kuprum.

Copper and aluminiumKuprum dan aluminium

Diagram 2.2Rajah2.2

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ForExaminer sUse

2(a)

2(b)

(6)

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Based on Diagram?.Z, record the voltmeter readings in Table2.3Berdasorkan kepada Rajah2.2, rekodkan bacaan voltmeter dalam Jadual2.3Pair of metalsPasangon logant

Negative TerminalTerminol nesatif Voltage/ VVoltan tVCu and Mg MagnesiumCu andZn ZincCu and AI Aluminium

Table23Jadual2.313 marksl

Based on Table 2.3 , state the relationship between the voltage and the positionof the metals in the Electrochemical Series.Berdasarkan Jadual2.3 , nyatakan hubungan antara bacaanvoltan dan lredudukan logam-logam dalam Siri Elektrokimia.

2(c)

13 marks)

(c) Based on the voltmeter readings, arrange aluminium, copper, magnesium andzinc in ascending order of tendency to release electrons.Berdasarkan bacaan voltmeter, susunkan aluminium, kuprurn, magnesium dan zink mengikutkecenderungan menderma elektron dalarn turutan menaik

Tendency to release electron increasesKecenderungan menderma el ektron b ertamb ah

13 markslThe experiment is repeated using the pair ofmetals; magnesium and zinc, Predictthe voltmeter reading.El


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(e) The experiment is repeated using two copper electrodes dipped incopper(Il) sulphate solution. The voltmeter does not show any reading.Explain why.El


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Based on the situation, plan a laboratory experiment to study the solubility of an ioniccompound in water and organic solvent.Berdasarkan situasi tersebut, rincangkan satu el


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INFORMATION FOR CANDIDATESMAKLUMAT ANTAK CALONl. This question paper consists of three questions. Answer all questions.

Kertas soalqn ini mengandungi tiga soalan. Jawab semua soalan.2. Write your answers for Question 1 and Question 2 in the spaces provided in thisquestion paper.Tulis jau,apan anda bagi Soalan I dan Soalan 2 pada ruang yang disediakan dalam kertas soalanini.3. Write your answers for Question 3 on the answer sheet provided.Tuliskan jawapan bagi Soalan 3 pada kertas jawapan yang dibekallcan.4. Show your working, it may help you to get marks.Tunjukkan kerja mengira, ini membantu anda mendapatkan markeh.5. The diagrams in the questions are not drawn to scale unless stated.Rajahyang mengiringi soalan tidak dilukis mengikut skala kecaali dinyatakan.6. The marks allocated for each question or sub-part of a question are shown in brackets.

Markah yang diperuntukkan bagi setiap soalan otau ceraian soalan ditunjul:lcan dalam htrungan.7. If you wish to change your answer, cross out the answer that you have done. Thenwrite down the new answer.Jika anda hendak menukar jnlapan, batalkan jau,apan yang telah dibuat. Kernudian tulis jawapanyang baru.8. You may use a scientific calculator.

A n da di b en ar kan menggun a kan kalkul at o r s a i nt ifi k.9, You are advised to spend t hour to answer Question 1 and Question 2 and30 minutes for Question 3.Anda dinasihati supcya mengambil masa I jam untuk menjawab Soalan I dan Soalan 7 dan 30 minituntuk Soalan 3.10. Hand in all your answer sheets at the end of the examination.

Serahkan semua kertas jawapan anda di akhir peperiksaan.

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EEf Uta:F

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13 Spm Ch Mrsm Trial p1 2 3 q