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DiagramRajah
Diagram shows he number f atoms n a molecute. hichbe he molecule?Rajah 1 menunjul
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Diagram shovrs he pH values or solution P, Q, R and S with he same concentration.Rajah 2 menunjukkan nilai pH bagi larutan larutan P, Q, R, dan S dengan kepekatan yangsama.
pHscale
DiagramRajah 2
\Mrat are he possible olutions f P, Q, R and S?Apakah larutan yang mungkin bagiP, Q, R dan S?
Ethanoic acid Sulphuric acid Sodium hydroxide Sodium chlorideAsid etanoik Asid suffurtk Natrium hidroksida Natrium klorida
\Altrich f the following salts can be prepared by precipitation eaction?Antara garam yang berikut, yang manakah boleh disediakan melalui t indak halaspemendakan?
A Barium ulphateBarium sulfat
B Sodium chlorideNatrium kloida
C Aluminium nitrateAluminium nitrat
D Potassium arbonateKalium karbonat
A
B
c
D
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P o R SP o S R
o P R S
o P S R
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10 AlloyX is made by mixing ronwithcarbon, hromium ndnickel. hat s X?AloiX diperbuat engan mencampurkan esidengan Rarbon, romiumdan nikel.Apakah X?
B PewterPiuter
C BronzeGangsa
D Stainless teelKelulitahan karat
11 \Mich of the followingdoes not affect ate of reaction ?Antara yang berikut, yang manakah tidak mempengaruhi kadar tindak balas ?
A Total surface area of reactantJumlah luas permukaan bahan tindak balas
B Concentration f solutionKepekatan arutan
C Presence of catalystKehadiran mangkin
D Volume of solutionlsipadu larutan
12 Wtich of the following rganic ompound willundergo ydrogenation eaction?Antara yang berikut, yang manakah sebatian organik yang akan mengalami tindakbalas penghidrogenan?
A PropenePropena
B PropanePropana
C PropanolPropanot
D Propanoic cidAsid propanoik
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13 \A/lrich f the ollowing xplains n oxidation rocess?Antara yang herikut, yang manakah menerangkanproses engoksidaan?
Loss of oxygenKehilangan oksigen
Gain of electronsPenerimaan electron
Loss of hydrogenKehilangan hidrogen
Decrease n oxidation numberN om bo pengol
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15 The thermochemical quation or the decomposition f calcium carbonate,is as follovus:Persamaan termokimia bagi penguraian kalsium karbonat, caco3 adatahberikut:
CaCO3 + CaO + COz AH=+l7gkJ
wrich of the following energy evel diagram epresents he equation?lntlra yang berikut, yang manakah gambarajah aras tenagi mewakiti persamaanitu ?
A trnergyTenaga
EnergyTenaga
cEnergyTenaga
EnergyTenaga
45d.1tI
CaCO3
seperti
B
D
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= +178
CaO + COz
= +178CaC03
AH = +178
AH= +178
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DiagramRajah 3
What are he hree states f matter?Apakah eadaan izikaljirimdi atas?
tl illGasGas
LiquidCecair
Sol idPepejal
SolidPepejal
LiqudCecair
GasGas
LiquidCecair
Sol idPepejal
GasGas
LiquidCecair
GasGas
Sol idPepejal
7 Which f he substance elow ontains he same number f atoms s n oneof chlorine as?Antara bahan yang berikut, ang manakah mengandungi ilangan atomsama dengan satu mol gas klorin?
A 1 mol neonI rnolneon
Tzmol sodium% mol natrium
T"mol carlcon ioxide% mol karbon dioksida
1 mol nitrogen ioxide
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yang
i l l
A
D
D
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Diagram4Rajah
Diagram 4 shovus parts of the periodic Tabre of Erements.Tle symbols x, y andz are not he actuar ymbors f he erements.\Mich of the following hours he correct rrangement f elements , X, y and Z inorder of ncreasing tomic ize?
laian + menuniukkan ebahagian adua Berkala Jnsur. imbot-simbolw, x, y danZ tidak mewakili imbo sebenir unsur.Altara yang berikut, yang manakah mewakili susunan ang betut pertambahan
aizatom bagi unsur-unsurW, , y dan Z ?
A W,X,Y,Z
B X,Y,W,Z
C Y, Z, X,W
D Z,Y,WX
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W Y z
X
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DiagramRajah 5
In Diagram , substance lights p he bulb n the molten tate. Mich statementbest explains he observation?
Dalam Rajah 5, bahan X menyalakan merrtot dalam keadan eburan. Pemyataanyang manakah aling baik menerangkan emerhatian ersebut?
X consists of ionsX terdiri daripada ion-ion.
X consists of moleculesX terdiri daripada molekul- mole4ul
X has freely moving onsX mempunyaiion-ion bebas bergerak
X has ons n fixed positionX mempunyaiion-ion dalam kedudukan tetap
20 A student constructed chemical ell using a copp er od, a zinc rod, copper ll)sulphate solution and connecting wires. \A/hich of the following will act as thepositive erminal?Seorang pelajar membina safu se/ kimia menggunakan rod kuprum, rod zink,larutan kuprum (ll) sulfat dan wayar penyambung. Antara yang berikut, yangm a n a ka h aka n m enia d termi nal positif?
Copper odRod kuprum
Zinc rodRod zink
Connecting wiresWayar penyambung
Coppe(ll) sulphate olutionLarutan kuprum (ll) sulfat
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21 Diagram shouvs he set-up of apparatus or the titration f 25 cm3 1.0 mol drn3 sodiumhydroxide olutionwith0.5 mol dm-3 f sulphuric cid.Rajah 6 ^ menunjut
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22 Wftich of the following ons orm white precipitate hat dissolves n excess amrnoniasolution?Antara ion-ion berikut, yang manakah menghasilkan mendakan putih yang larutdalam larutan ammonia berlebihan?
A Mgt*
B AI3*
c znz*D Pb2*
23 The equation below shows he formation of a composite material rom its originalcomponent.
Persamaan di bawah menunjukkan pembentukan satu bahan komposit daripadakomponen asalnya.
Plastic + Glass ibres Fibre glassPlastik + Gentian kaca --| Kaca gentian
Why is fibre glass better han common plastic?Kenapakah kaca gentian ebih baik daripada plastik biasa?
A High ensile strengthKekuatan regangan tinggi
B Resistant o corrosionTahan kakisan
C Able to withstand heatTahan haba
D Good conductor of electricityKonduktor elektrik yang baik
24 Which of the followingwillmake meat ast onger?Antara yang berikut, yang manakah boleh menyebabkan daging tahan tebih ama?
A Boil he meat or an hour.Mendidihkan daging untuk satu am.
B Dry he meat under the sunMengeringkan daging d bawah matahari
C Keep he meat n a refrigerator.Menyimpan daging di dalam petisejuk
D Fry he meat and keep nto a container.Menggorengkan aging dan menyimpan idalam bekas
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25 The equation below shovvs reaction of alkene.Persamaan di bawah menunjukkan indak balas alkena.
CH3CH=CH2+ Y +CH3CH2CH2Br
Which of the following s Y?Antara yang berikut, yang manakah Y?
A Bromine, Br2Bromin, Br2
B Hydrogen romide, HBrHidrogen bromida, HBr
C Sodium bromide, NaBrNatrium bromida, NaBr
D Magnesium romide,MgBr2Magnesium bromida, MgBr2
26 The followingshows an ionic equation.Yang berikut menunjukkan suatu persamaan on.
P 1s; Qtn("d * P2*("0 + Q
Based on the equation, which of the following s true?Berdasarkan persamaan tersebut, yang manakah benar?
A P is oxidised.P dioksidakan.
B P2* s oxidised.f dioksidakan.
C Qz* s a reducing gent.Q2*adalah agen peneurunan.
D Q2' donates electrons.Q2*menderna elektron.
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7 Diagram shows he results btained when metal X is added nto solution A.Rajah 7 menunjukkan keputusan yang diperoleh apabila ogam X ditambah kedalam larutan A.
SolutionA before adding metalXLarutan A sebelum ditambahkan ogam X
Solution after adding metal XLarutan 4 se/epas ditamhahkan logam
DiagramRajah 7
Which of the following explains he reaction?Antara yang berikut, yang manakah menjelasRan indak balas tersebut?
A Displacement nd endothermicPenyesaran dan endotermik
B Displacement nd exothermic
Penyesaran dan eksotermik
C Precipitation nd endothermicP em end akan d an e ndoterm k
D Precipitation nd exothermicPemendakan dan eksotermik
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4il1tI
tl nl
otlo- s-
tlo
IV
CHsf ( CHz)rr t o- Na*
DiagramRaiah
Based n Diagram , which s he hydrophilic art n sodium odecyl ulphate?Berdasarkan ajah8, yang manakah ahagian idrofilik alam natium dodekilsulfat?
AI
Bll
c l l l
DIV
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Chlorine-35 nd chlorine-37 rehruosotopes f chlorine. Mratare he differencesin hese sotopes?Kortn4l dan klorin3T adalah dua isotop klorin. Apakah perhezaan di antara
isotopisotop ni?I Proton umber
Nombor proton
ll Nucleon umberNombor ucleon
lll PhysicalpropertiesSifat-sifat izikal
lV ChemicalpropertiesSifat-sifat imia
A land lI dan l
B l land l lll dan ll
C land l lt dan tt
D l land Vll dan V
4il1tl
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30 Diagram shows he set-up of apparatus o determine he empirical ormula ofmetaloxide.n/1h 9 menuniukkan susunan radas untuk menentukan ormula empirik bagiol
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Diagram 0Rajah 10
An atom of element X reacts with element Y to form a compound. A/hat s theformula of the compound ormed?satu atom unsur x beftindak balas dengan unsur y menghasilkan safusebatian.Apakah ormula bagi sebatian yang terbentuk?
AXY
B X,Y
G XYZ
D XzYz
2 Many covalent ompounds re used as solvents. fthich of the following s not asolvent or paint?Kebanyakan sebatian kovalen digunakan sebagai pelarut. Antara yang berikut,
yang manakah ukan pelarut untukcat?A Ether
Eter
B WaterAir
C EthanolEtanol
D TurpentineTurpentin
XY
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33 Diagram 1 shows he apparatus et-up n flrs elec{roplating f an iron spoon withsilver.Raiah 11 manuniul
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pH = 1.0
1.0 moldm-3hydrochloric cid
4s1t1
4 pH= 5.0
Ht-----tt:_':F 1.0 moldm-rethanoic acidDiagram 12
Rajah 12
In Diagram 12, he pH value of ethanoic cid is higher han he hydrochloric cid.Whichof the following, xplain he difference?Dalam Rajah 12, nilai pH asid etanoik lebih tinggidaripada asid hidroklorik. Antara yangberikut, yang manakah menerangkan perbezaan tersebut?
A Ethanoic acid has low concentration f H*Asidetarnik mempunyaiRepekatan f yang ren&h
B Ethanoic acid is a strong acidAsid etanoik iatah asid kuat
C Hydrochloric cid s a weak acidAsid hidroklorik ialah asid lemalt
D Hydrochloric cid has high concentration f OHAsid hidroklorikmempunyai epekatan OH-yang inggi
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35 Diagram 3shows series f reaction hat nvolves ompound .Rajah 13 menunjukkan atu ii tindak balas ang metibatkan ebatianG
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Added with dilute hydrochloric cid andfiltered.Tambah asid hidroklorik cair dan dituras
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Addedwithammonia olution
untilexcess.Tambah arutan ammonrasehingga berlebihan
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Diagram 3Rajah 13
G is a mixture f rrrc alts.Among he ollowing, hat s G?G adalah campuran ua garam. ApakahG?
A Lead ll)nitrate nd zinc arbonatePlumbum(ll) nitrat dan zink karbonat
B Lead(ll) itrate nd aluminium itratePlumbum(ll) nitrat dan aluminium itrat
C Silver ulphate ndcopper ll)carbonateArgentum ulfatdan kuprum(ll) arbonat
D Magnesium ulphate nd ead(ll) arbonateMagnesium ulfatdan plumbum(il) ahonat
Whiteprecipitate issolvesMendakan utihmelarut
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36 Diagrum 4shorrns camera,Rajah 4 menunjukkan ejenis karnora.
Quarts ensKanta kuarba
Diagram 4Rajah 4
T/haJ ype of glass s used o make he quartz ens?Apakah enis kaea ang digunakan ntuk membuat anta kuartza?
A Fused glassKaca silika edakur
Soda imegfassKacasoda apur
Borosilicate lassKaca bonsilikat
Lead rystalglaseKaca plumbum
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37 A student carried out an experiment o determine he rate of reaction behoeencalcium carbonate and dilute hydrochloric cid. The volume of carbon dioxide gascollected at intervals of 0.5 minutes s recorded n Table 1.Seorang pelajar menjalankan eksperimen untuk menentukan kadar tindak balasantara kalsium karbonat dan asid hidroklorik cair. lsipadu gas karbon diot
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9 \Nhat s the oxidation number of X in X,.'ot?- on?Apakah nombor pengoksidaan bagiX dalam ion XrOrz-?
A+3
B+4
C+5
D+6
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0 Table 2 shovrrs he temperature eadings or the reaction etween 5 cm' of 0.1moldm3 hydrochloric cidand 25 cm3 f 0.1 moldm-3 odium ydroxide olution.
Jadual 2 menunjukkan acaan suhu untu? tindak batas di antara 25 cm3 asidhidroktorik .1 mol dm'3 dan 25 cmr arutan natrium hidroksida .1 mol dmn.
Average nitialtemperature efore both solutions re mixedSuhu awa ked ua- dua laruta n sebelum dica mpurkan 300c
Highest emperature fterboth olutions re mixedSuhu eftinggi arutan e/epas icampurkan 43"C
Table 2Jadual 2
Calculate he heat produced rom he reaction.Krakan haba yang terhasil daripada indak balas tersebut.
A 25cm3 x 4.2J g-1 C-lx 13oC
B 25cm3 x 4.2J g-1 C-l x 43oC
c 50cm3 x 4.2J g-1 c-1x 13oC
D 50cm3 x 4.2J n-log-r x 43oC
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41 Diagram 15 shovre he molecular ormula of an organic compound.Rajah 15 menunjukkan ormula moteku hagi suafu sebatiai organik
csHz oo czHsDiagram 5
. Rajah 5
The compound s an ngredient n making ineapple am. /r/trats the unction fthecompound?sebatian tu adalah suafu bahan dalam penyediaan em nenas. Apakah ungsisebatian ersebut ?
To make he jam thickerUntuk memekatkan em
To enhance he flavorUntuk menambah pertsa
To prevent oxidationUrttuk m enge a kkan pep ksida an
To sweeten he amUnfuk menambah kemanisan em
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TableJadual 3
What are he physical tates f substances , X, Y and Zat 11e"C?Apakah keadaan izikal bahan W, X, Y dan Z pada 119 C?
D
SubstanceBahan
Melt ingpoint /oCTakat ebur/" C
Boiling oint "CTakatdidih/ "C
W -123 7B
X ,10 104
59 224
z 120 445
W X zLiquidCecair
LiquidCecair
SolidPepejal
GasGas
GasGas
SolidPepejal
LiquidCecair
GasGas
SolidPepejal
LiquidCe air
GasGas
GasGas
GasGas GasGas LiquidLiquid SolidPepejal
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43 Table 4 shornc he percentage y mass of each element n a compound nd heirrelative tomicmasses.Jadual 4 menuniukkan eratusan mengikut isim bagi sefi.bp unsur dalam safusebatian an uga isim atom elatifmasingrmasing.
ElementsUnsur c H o
Percentage %)Peratus(T) 26.70 2.20 71.10
Relative atomic mssJisim atom relative 12 1 16
Table 4Jadual 4
\Mrat is the empirical ormula of the compound?Apakah formula empiik untuk sebatian ersebut?
A CHO
cH()2
cH20
CzHO
44 Element Z forms an oxide with the chemicalformula of 2203.\Attrich f the followingis rue about his oxide?Unsur Z membentuk oksida dengan formula molekul ZzOs. Antara yang beikut,yang manakah henar tentang oksida ni?
A The oxide of Z reacts with acid only.Oksida Z bertindak balas dengan asid sahaja.
B The oxide of Z reacts with alkali only.Qksida Z beftindak balas dengan alkalisahaja.
The oxide of Z reacts with both acid and alkali.Oksida Z bertindak balas dengan kedua-dua asid dan alkali.
The oxide of Z does not react with both acid and alkali.Oksida Z tidak bertindaK balas dengan kedua-dua asid dan alkali.
B
c
D
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45 Atom X has an electron rra ngement f 2.4. Atom Y has proton number of 17. Whatare he properties f the compound ormed between lements X and Y?Atom X mempunyai susunan elel
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47 The equation below shoue the reaction betrrr,een agnesiumPersamaan di bawah menunjukkan indak batas di antarahidroklorik.
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Mg + 2HCl -' MgCl2 + Hz
lf 0'48 g of magnesium s used, calculate he volume of 0.5 mol dm-3 ydrochloric cidneeds o be added or complete eaction.[Relative tomic nss : H=1: Mg=24; Cl=35.5]Jik10.a8 g magnesium igunakan, itungkln isipadu asid hidroktonkO.S ol dm'3 angperluditambah ntuk indak balas ang engkap.fJisin atom elatif.'H=1; Mg=24; Cl=35.5]
A 0.08 cm3
B 0.8 cms
C Scmo
D B0 cm3
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and hydrochloric acid.magnesium dan asid
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48 Diagram 16 shows he set up of the apparatus orthe action of heat on zinc carbonate,After a few minutes ime water urns cloudy.Rajah 16 menunjukkan susunan adas bagikasan haba ke atas bahan W.Se/epas beberapa minft air kapur menjadi keruh.
tII
HeatPanaskan
Limewater
Diagram 6Rajah'16
The mass of the boiling ube with he content before and afterthe heating s recorded nTable 5 below.Jisim tabung didih dengan kandungannya sebelum dan se/epas dipanaskan dicatatkandalam Jadual 5 di bawah.
Before heatingSebelum emanasan
31.25s
AfterheatingSe/eoas Demenasan
2O.259
Table 5Jadual 5
Calculate he volume of the gas released n dm3 at room emperature.[Rejative atomic mass: c=12; o=16; Zn=65; Molar volume at room temperature 24dm'mol'tlHitung isipadu gas yang terbebas datam dms pada suhu bitik.[Jisim atom relatif:c=12 0=16; zn=65; lsipadu molar pada suhu bilik = 24 dmsmoIl]
A3
11
12
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4(t Qiagrarn 8shoruEour ronnails n est ubes, , e, R and S.laigh 16 menuniukkan mpatpaku iletakkan ioaam empat abung ujiP, Q RdanS"
Hot ellysolution potassium exao/anofenate(lll) olutionLarutan gar-agar anas larutan alfumheksdsilnofent(ilt)
lronnailwith eadPaku besidengan
Plumbum0
lronnailwithzincPaku besidengan ink
R
lron naifwithmagnesiumPaku besidengan
magnesiumS
#{\ronnail
withsilverPaku besidengan
argentumP
32454lll@201 Hakcipta abatan elajaran egeri ohor
Diagram 6Rajah 6
which est ube shows he highest ntensity f bluecolouration fiera day?TaPu 1g.uiimanakah ang mempunyai eamatan wama bii yang tiiggi setepassatu hari?
AP
BO
CR
DS
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SULIT 4541t1
50 Table 6 shovrrs data recorded wtren 100 cm3 of water rltras eated using methanol,CH3OH s a fuel.Jadual 6 menunjukkan data yang direkodkan apabita 100 cm3 air dipanaskandengan menggunakan metanol, CH3OH sebagaibahan api.
Massof vrraterJEim air 10O
Change n temperature f r,trater,Perubahan uhu air,0 20 0c
Mass f methanolburntJisim metanol erbakar 0.32
Table 6Jadual 6
\Alhat s the heat of combustion of methanol n the reaction?Apakah haba pembakaran metanol di dalam tindak balas tersebut?
[Specific eat capacity f solution: .2 J g'1oC-1; olar mass of methanol, CHOH is32 g mol-l1tHiba kapasffi spesifik arutan: .2 J g'1"CI;Jisim molar metanol, CH3OH adalah32 g mofll
A 0.84 kJ nrcl-r
B 8.4 kJ mol-r
C 84 kJ mol'l
D 840 kJ mol'l
END OF QUES'IIQN PAPER
KERTAS SOALAN TAMAT
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Kelas:ama: . . . . . . . , . .n
t t l t \t l t t l
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PEPERIKSAANCHEMISTRYKertasSeptember
2%janDua am igapuluhminit
454112
JABATAN ELAJARANEGERIOHOR
PERCUBMN PM2011
JANGAN UKAKERTAS OALANNISEHINGGAIBERITAHU
1,
2.
3.
Tuliskan ama an ingkatan adaruang angdisediakan.Kerfas oalanniadalah alamdwibahasa.Soa/an alam ahasa nggensmendahuluioalan ang epadandalam afiasa Melayu.
Caon dibe a {
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SULIT
Section ABahagian A
[50 marks]160markahl
Ansvr,er ll questions n his section.Jawab semua soalan dalam bahagian ni.
1 (a) Diagram .1shows he manufacture f ammonia.Rajah 1.1 dibawah menunjukkan embuatan mmonia.
-lI
_l
2
Mixture fNzand Hz200 atm
Campuran
N2 dan H2200 atm
The unreacted N2and H2N2 dan H2yang tidak bertindak balas
lroncatalyst450r
Mangkin besi45eC2ga sGas H2
Based n Diagram .1Berdasarkan ajah 1.1
(D Name his ndustrial rocess.Namakan proses ndustri ni.
Liquid mmoniaCecair ammonia
Diagram .1Rajah 1.1
[1 mark]
(iD State he names of reactants used.
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SULIT 3
Nyatakan nama unfuk bahan-bahan indak balas yang digunakan.
[1 mark]
(iiD The ammonia as ormed s condensed nd separated. Jhy?Gas ammonia ang terhasildikondensasikan an diasingkan. enapa?
Write two main uses of ammonia.Tuliskan dua kegunaan utama ammonia,
[1mark]
(iv)
(b) Diagram 1.2 shows hree sources of traditionalmedicines.Rajah 1.2 menunjukkan tiga sumber ubat tradisional.
oDiagram .2Rajah 1.2
Match he hree sour@s of raditionalmedicine ith heir uses by using a lineP a d a nka n keti ga-tiga conto h-conto h su mber denga n keguna a n ny a.
[2 marks]
[1 mark]
[Lihat sebelah
P
(c) The ollowing hows ourexamples f modernmedicines.
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Cure sore hroat
Treat kinwoundsMerawat uka kulit
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SULIT 4
Di bawah menunjukkan mpat contoh ubat moden.
Haloperidol n BarbituratesHaloperidol - Barbiturat
Paracetamol l--lParacetamol
Streptonrycin t_]Strefromysin
Tick {) in the box provided bove o indicate nalgesics hat elieve ain.Tanda l) di dalam kotak di atas untuk ubat analgesik ang mengurangkankesakitan.
[1 mark]
Name nother xample f analgesics hat s used n headache ablets nd ncough medicines.What s the side effectof this medicine?
Namakan ontoh ain analgesik ang digunakan alam ubat sakit kepala anubat batuk Apakah kesan ampingan ontoh ubat ni?
[2 marks]
(iiD An attention eficit yperactivity isorder hild may ake dextro-amphetamine,psychothera euticmedicine. tate ts u nctio .
Seorang anak-kanak iperal
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2
5
Diagram shows part of the Periodic able of Etenrents.V, \N, X,Y,Z and U do not represent he actual ymbols fthe elements.
Rajah 2 menunjul
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SULIT
(b) (D Write he electron rrangement or an atom of element .Tuliskan susunan eleldron bagi atom unsur X.
[1 mark]
(iD write the ormula f the on ormed rom an atom of erenrent .Tuliskan ormula bagi on yang terbentuk daripada satu unsur X.
[1 mark]
(c) (D \Mryare elements , Y and Z placed n he same period?Mengapakah unsur X, Y dan Z terletak dalam kalayang sama?
[1 mark]
(ii) furange elernents , Y and Z according o the decrease n he size of atoms.Susun unsur X, Ydan Z mengikut pengurangan saiz atom.
[1 markl
(d) (D Write he balanced hemical quation or he reaction etureen lement andoxygen as.
Tuliskan ercamaan imia seimbang agitindak alas i antara nsurX dan gasoksigen.
[2 marks]
(ii) Elernent dissolves n waterto produoe solution.Complete he equation or he reac.tion.
Zz + HzO '-+ . . . . . . . . . . . . . . . . . . . . .
[1 mark]
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SULIT 7
Diagram shovrrs he apparatus et up o determine he melting ointof substance . Inthisexperiment, olidX is heated ntil t changes o molten tate.
Rajah 3 menunjukkan usunan adas untuk menentukan akat ebur bahan X. Dalamekspermen ni,pepejal X dipanaskan ehingga a berubah epada cecair.
mipanaskan
ThermometerTermometer
BoilingubeTabung didihater
AirSubstance
Bahan X
DiagramRajah
Based n diagram , ansu,er he ollowing uestions.Berdasarkan ajah 3, awab soalan-soalan erikut.
(a) What s the name of the process when solidchanges o molten tate?Apakah proses apabila pepejal berubah menjadi eburan?
t- -
[1 mark]
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(b) SolidX has a nrelting ointof 90oC. f a test ube of moltenX at 150oC s allora,edocool at room emperature,
PepeialX mempunyaitakat eburg}o2. Sekiranya abung ujiyang mengandungileburan X pada suhu 150oC isejukkan pada suhu bilik,
0 Sketch graph of temperature gainst ime or he cooling f moltenX.Lakarkan graf suhu melawan masa unfukpenyejukan eburan x.
[2 marks]
(iD How o avoid supercooling rocess?Bagaimana untuk mengelakkan roses penyejukan ampau?
[1 mark]
(iiD Drawa labelled pparatus et-up or he cooling rocess fsubstance .Lukissusunan adas berlabel nfuk proses enyejukan agi bahan X.
[2 marks]
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SULIT
Particles onsist f atom, moleculeZarah-zarah erdiridaripad atom,neutral?
I
or ions. A/hys an atom neutral?molekulatau on. Mengapakah tom adalah
(c)
(d)
[1 mark]
A bromine tom has 35 protons nd 45 neutrons. Write he standard epresentationof bromine tom.Satu atom brominmempunyai3S roton dan 45 neutron. Tuliskan erwakilan iawaiuntuk atom bromin.
[1 mark]
(e) (D What are sotopes?Apakah sotop?
[1mark]
(iD Phosphorus-31 nd phosphorus-32 re sotopes f phosphorus. tate ne useof phosphorus-32.
Fosforus-3 dan fosforus-32 datah sotopuntuk osforus. Nyatakan atukegunaan osforus32.
[1 mark]
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4 The hermochemical quation epresent he displacement eaction f copper romcopper(ll)sulphate olution y zinc.
Persamaan ermokimia erikutmewakilitindak balas penyesdran uprumdartpada arutanRuprum(ll)sulfat oleh zink
Zn (s) + Cusoa (aq) + ZnSoa aq) + cu (s) AH= 190 kJ/molr
(a) State he meaning of heat of displacement.Nyatakan maksud haba penyesaran.
.1 markl
ls t an exothermic eaction r endothermic eaction?Adakah a tindak balas eksotermik tau endotermik?
[1 mark]
(c) State wo observations n this experirnent.Nyatakan ua pemerhatian alam indak balas ni.
10
(b)
(d) Drawan energy evel iagram or his eaction.Lukisgambarajah aras enaga bagitindak balas ni.
[2 marks]
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SULIT 11
(e) In he experiment, xcess incpovrder as reacted with25 cms of 0.2 rnoldm'3copper(l) sulphate olution.Dalam.eksperimen tu, serbuk inkbertebihan itindak balaskan engan 23 cm3larutan kuprum(ll) sulfat 0.2 mol dm'?.
Calculate he heat energy eleased n his experiment.Hitungkan enaga haba yang dibebaskan idalam eksperimen ni.
[Specific eat capacity f solution:4.2J -tog't' Density fsolution: g crn3]lMuatan haba entu arutan: 4.2 J g't oc-,; Kefumpatanlarutan: g cm'-1
[2 marks]
(b) In another eaction, incwas replaced ithmagnesium o react withcopper(ll)sulphate olution.Predicf he value of heat of displacernent, H and explainwhy.
Dalam satu indak balas ain, zink telah digantikan dengan magnesium untuk beftindakbalas dengan arutan kuprum(ll) ulfat.Ramalkan ilaihaba penyesaran, H dan erangkan mengapa.
[2 marks]
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-
SULIT
Diagram .1 shovvs flowchart or he qualitative nalysis f substance .Rajah 5.1 menunjukkan arta alir analisis ualitatffbagisebatian .
12
ProcessProses /
Add hydrochloric cid, HCIsolutionTambah larutan asid hidroklorik, HCI
Process IIProses II
Solution + Sodium ydroxide,NaOH olution
Larutan Y+ larutan natriumhidroksida, aOH
Process lProses l
Solution +Silvernitrate, gN()3 olution
Larutan Y+ Larutanargentum itrat,AgNOs
Diagram .1Rajah .1
(a) Based n Diagram .1,Berdasarkan Rajah 5.1,
(i) Name he black povrder X.Namakan serbuk hitam X.
BlackpowderXSerbuk itamX
Blue olutionLarutan biru Y
\MriteprecipitateMendakan utih
[1 mark](ii) Name he process .
Namakan roses .
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SULIT 13
Writea balancEd hemicalequation or he reaction.Tuliskanpersamaan imiayang seimbang agitindak barasyang berlaku.
t2 marksl
\Nhy s the black povrder added n excess n the reaction?Mengapa serbuk itamX ditambah ecara berlebihan alam indak balas ni?
[1mark]
(iiD
(iv)
(b) Based n process l,Berdasarkan epada proses l,
0 Name he process.Namakan proses /a.
[1 markl
(iD Write he onicequation or he reaction.Tuliskan persdmaan onikbagitindak balas tu.
[1 mark]
Howto obtain he wtriteprecipilate n he process l?Bagaimana mendapatkan mendakan putih dalam proses ni?
[1 markl
(c) Based n the process and process ll,state he cationand anion present n solutionY.Berdasarkan roses I dan proses ll, nyatakan ation dan anion yang hadir di datamlarutan Y.
CationKation[2 marks]
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(iiD
AnionAnion
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Diagram .1 shows an experiment o investigate factor hat nfluences he rate of reaction.The experiment s repeated ive inres at different emperatures.
Raiah 6.1 menuniukkan uatu ekspeimen unfuk mengkaji satu faktoryang mempengaruhikadar indak balas. Eksperimen ni diulangi ebanyak ima kalipada suhu yang berlainan.
14
:_
50 cm3 of sodium hiosulphate olution0.2 mol dm'3 + 5 cm3 of sulphuric cid 1moldrn3.
50 cm3 arutan natrium ti\sutfat 0.2 moldm's + 5 cm3 asid sulfurik 1 mol dma.
Diagram .1Rajah 6.1
Table 6 shovr,she emperature nd ime aken or "X' rmrk to disappear romviewwhenobserved erticallyrom he op.Jadual 6 menuniukkan uhu dan masa ang diambitunfuk anda X' hilang daripandanganbiladiperhatikan ari atas.
ExperimentERsperimen
Temperature oCSuhu oC
Tinre sMasa s
1 30.0 55.52 40.0 33.03 50.0 23.O4 60.0 17.A5 70.0 13.0
Table 6Jadual 6
(a) State one observation rom his experiment.Nyatakan satu pemerhatian aripada eksperimen ni.
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(b)
15
Complete he chemical quation or he reaction hat occurred.Lengka kan peraamaan kimia untuk indak ba as yang berlaku.
Na2S2O3 HrSO4 +
(c) compare he rate of reaction etueen Experiment and Experiment .Banding adar indak balas antara Ekspeimen dan Experimen .
[1 markl
[1 mark]
(d)Explain
ouranswer n
(c)using he Collision heory.Jelaskan awapdn anda pada (c) dengan menggunakan eoriperlanggaran.
[4 marks]
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(e) Byusing he data n able6, draw he graph f emperature gainst ime or hisexperiment n the graph provided elow.
Dengan menggundkan ata dalam adual 6, lukiskangraf suhu melawan masa bagieksperimen ni di dalam kerfas graf yang disertakan i bawah.
[1 mark]
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SULIT 17
(0 Diagram 6.2 shov'ls a @nversation between Ummu and Qistina-Rajah 6.2 menuniukkan perbualan diantara Ummu dan Qistfna.
Diagram .2Raiah 6.2
Three students boveare nvestigating he effectof different emperatures o preparehard boiled ggs. Based n he conversation bove, tate he relationship etweentemperature nd ime aken o prepare ardboiled gg.
Tiga pelajar i atas sedang meng4ajikesan uhu yang berlainan Re atastelur yangdirebus. Berdasarkan erbualan iatas, nyatakan erkaitan rfara suhu dengan masayang diambil untuk menyediakan elur rebus.
[2 marks]
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When I placed a small sizedegg in boiling aater t 100oC,it become hard boiled within12 minutes.
Apabila saya meletakkan sebiiitelur bersaiz kecil ke dalam airmendidih pada 10fC, iamenjadi keras dalam temPoh12 minit.
ButUmmu, hen placedsarrp sized egg n hot waterat 70oC, t took me a muchlonger ime han yours.
Tapi Ummu,apabila sayameletakkan eluryang sarnasaiz e dalam air panaspada 70"C, a mengambil,??asa ebih ama daripadaawak
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18
Section BBahagian B
l2Omarksl
Ansr,rierny one question rom his section.Jawab mana-mana atu soalan aripada ahagian ni.
(a) A student wants o carry out an experirnento electroplate n iron keywithsilver.
Seorang elajar nginmenjalankan atu eksperimen ntukmenyadur satu kuncibesidengan argentum.
(i) State he anode, athode nd electrolyte hat must be used o carry out heexperiment.Nyatakan anad, katod dan elel
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(b)
19
Diagram shows apparatus et-upused o investigate he reaction f metaldisplacement rom ts salt solution y some metals nd he observations btained
from he experiment n 1 minute.
Rajah7 menunjukkan usunan adas ang diguna4an ntukmengkaiitinda? elaspenyesaran ogam daripada arutan garamnya leh beberapa enis ogam ertentu'dai pemerhatian ang di peroteh daripada eksperimen alam empah 1 minit.
DiagramRajah
Chemicalformula or
productaqueous
solution
Apparatus and observation after I minuteAlat radas dan panerhatin selepas minit
Pz(SOa)g25 cmsof 0.1 mol
Brown oliddepositedPepejalperangterenap
MetalPLogamP
sulphate olution
25 cms arutankuprum(ll)sulfat
0.1 moldm'"
25 cm3 of 0.1 nroldrn3of coppe(ll)Brown olid
sulphate olution
25 cms arutankuprum(ll) sulfa
0-1moldm''
25 cm3 f 0.1 moldm3 of Q sulphate
solution
25 cms arutan QsulfatA.1moldma
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112 @ 2A11Hakcipta abatan elajaran egeri ohorULIT
20
(i) Based n he nfornution iven n Diagram , compare he differencesbetween:
Berdasarkan aklumat ang diberikan alam Rajah 7, bandingkan erbezaandi antara:
. Experimentand l,Eksperimen dan Il,
r Experimentand ll.Eksperimen dan ll.
Explain ouranswer n erms f:Terangkan aunpan ndadarisegi:
r Positionn he elecfrochemicalseries.Keduduka da a m siri eleldrokimia.
o Observationn allthree xperiments.Pemerhatian da a m ketiga-tiga e kspe imen.
[8 marks]
(iD ldentifymetalP and Q.Kenal pasti ogam P dan Q.
[2 marks]
(iiD ln experiment l, 25 cm3 f 0.1 moldm-3 opper(ll) ulphate olutioneactcompletely ith metal Q.Calculate he mass f copper roduced.
Dalam eksperimen , 25 cms arutan uprum(tt) ulfat 0.1 mol dm-3 ertindakbalas engkap dengan ogam Q.Krakan isim kuprum yang terbentuk.
[Relativetomic rnss: Cu = 64]
lJisim atom elatif:Cu = 641
[3 marks]
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21
(a) A covered as ar contains .5molof ammonia as, NH3.Satu balang gas bertutup mengandungil.S molgas ammonia, NH3.
Howmany ammoniamolecules re here n he gas ar?Berapakah ilanganmolekulammonia i dalam balang gas ercebut?
[2 marks]
(b) Urea, CO(NH2)2,rrltTloniumitrate,NH+NOs nd hydrazine, 2Ha re ertilizershatare used in agriculture. Mich fertilizerhas the highest percentage mass ofnitrogen?
Urea, CO(NH)z, ammonium nitrat, NHNO1 and hydrazin, Nzlta dalah baja yangdigunakan dalam pertanian. Baja yang manakah mengandungi peratus isimnitrogen eftinggi?
[4 marks]
(c) Diagram .1 shorne he electron rrangement fmolecules and B.Rajah 8.'l menunjukkan usunan leldron agimolekulA dan B.
Diagram .1Rajah 8.1
Elased n diagram .1:Berdasarkan ajah 8.1;
State he ype of covalent ond n each rclecule nd explainwhy.Nyatakan enis katan ovalen dalam setiap molekuldan terangkan mengapa.
[4 marks]
A
O e O
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SULIT 22
(d) Diagram .2 shorarshe ormula f trapdifferent ompounds.Rajah 8.2 menunjukkan ormulabagidua sebatian erbeza.
KzO SOeDiagram .2
Rajah 8.2
Based n Diagram .2:Berdasarkan ajah 8.2:
(i) Compare nd contrast he wo compounds n erms of physical tates at roomtemperature, nelting oint, lectricalconductivitynd solubilityn water.Banding dan beza kedua-dua sebatian ari segi keadaan izikalpada suhubilik, akat ebur, kekonduksian lektrikdan kelarutan alam air.
(iD Explain he differences f he melting oint or he vr,rc ompounds.Terangkan erbezaan akat ebur bagi kedua-dua sebatian.
, [10marks]
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SULIT 23
Section CBahagian C
BOmarksl
Ansvr,ernyone questionrom his ection.Jawab mana-mana satu soalan daripada bahagian ni.
I (a) Diagram .1 shows structuralformula fbutene,Rajah 9.1 menunjukkan ormulastrukturbagi butena.
H H HHl l r l
H-C-C-C:C-Ht lHH
Diagram .1Rajah 9.1
Drawanother wo structural ormulae f butene nd write heir espective ames
accordingo the UPAC omenclature.Lukisdua ormula strul
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SULIT 24
Based n diagram .2 :Berdasarkan ajah 9.2:
(D ldentifyhe vrrc rganic hemicals eeded o produce he ester above.Kenalpasti dua bahan kimia organikyang diperlukan unfuk menghasitkan ester diafas.
[2 marks]
(iD State wo chemical roperties or each organic hemicats hat you stated ne(bxD.Nyatakan ua sifatkimiabagisefiap bahan kimiaorganik ang anda nyatakandatam 9(b)(il.
[4 rmrksl
(c) You are given an apparatus nd chemicals s follow:Anda diberikan alat radas dan bahan-bahan imia sepefti erikut
Apparatus: est ube, dropper.Radas; abung uji, penitis
che mica s: Bromine n trichlo oetha e, acidifed potassium manganate(vl )solution
Bahan kimia:bromin dalam rikloroetana, arutan kaliummanganat(Vtl)berasid
Describe wo chemical ests using he apparatus nd chemicals ivenabove odifferentiate etween exane nd hexene.Your description ust nclude he procedure nd observation.Huraikan dua uiian kimia menggunakan alat radas dan bahan kimiayang diberikan diatas untukmembezakan ntara heksana an heksena.Dalam huraian anda mesiti iseftakan rosedur dan pemerhatian.
[10marks]
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SULIT
10 (a)
25
Diagram 0.1 shows he apparatus et-up or a voltaic etl.Rajah 10.1 menunjukkan usunan adas untuksafa se/ voltan.
MetalALogam A
Copperkuprum
Aqueous olution CuY2Larutan akueus CuYz
Aqueous olution YzLarutan akueus AYz
4541 12 @2O1 Hakcipta abatan Petajaran egeri ohorSULIT
Diagram 0.1Rajah 10.1
MetalA s rnore electropositivehan copper.Suggest ne possible ation or X2* on.Logam A lebih eleffiropositif aripada kuprum.Cadangkan satu kation ang mungkin bagiion **.
Based on the elec{rode actor whichaffeits the selec{ive ischarge f ions at theelectrode,Berdasarkan al
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SULIT
(b)
26
Table 10.1 hotnrshe result f chemicaltests sed o change he solution and
Solution .Jadual 10.1 menunjukkan eputusan jian kimiauntuk menukarkan arutan X danlarutan Y.
ExperimentEksoerimen
ProcedureProsedur
ObservationPemerhatian
Bromine rater s added nto Xsolution nd warmed. odiumhydroxide olution s added ntomixture ntilexcess.
Air bromin ditambahkan e dalamlarutan X dan dihangatkan.Laruta n atrium h d o ksidditambahkan Re dalam campuransehingga berlebihan.
Green precipitateformed
Mendakan hijaubrberrtuk
Zinc pourder s added nto solutionY and he mixtures shaken.Sodiumhydroxide olutions then
added nto he mixture ntilexcess.
SerbuKzink itambah e dalamlarutan Y dan digoneangkansi,ehngga tiada perubs hd tr.Laruta natrium hidroksidd tambahkan se hingga berlebi a nke dalam campuran.
Brown recipitateformed
Mendakanperang terbentuk
Table 0.1Jadual 10.1
Based n Table 0.1:o ldentifyhe solution and solution .o State he reducing gent n experiment and oxidising gent n experimen
ll and giveone reason or each of yourchoices ased n he changes foxidation umber.
Berdasarkan adual I 0. :o Kenal pasti larutan X dan arutan Y.
o Nyatakan bahan yang bertindak sebagai gen penurunan dalameksperimen dan agen pengoksidaan alam eksperimen l serta beri satusebab untuk setiap pilihananda berdasarkan erubarhan omborpengoksidaan.
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SULIT
(c)
4541 12 @ 201 Hakcipta abatan Pelajaran Negeri ohoSULIT
27
Chlorines goodoxidizing gent.Korin adalah gen pengoksidaan ang baik.
You are given he ollowing pparatus:Anda dibeikan alat-alat adas berikut:
U-tube, alvanometer, onnecting ires,stopper, ropper, arbon lectrodes ndretort tand withclamps.TiubU, galvanometer, wayar penyambung, enyumbat, penitis, elektrod-eleldrodkarbon dan Raki etot dan pengapit.
Suggest suitable hemicaland escribe n experiment o verify he abovestatement sing he givenapparatus.Cadangkan bahan kimia yang sesual dan huraikan satu ekspertmen ntukmengesahkan ernyataan i atas dengan menggunakan lat radas ang diberi.
[10marks]
ENDOF QUESTTON APERKERTASSOATA/\' TAMAT
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SUT,IT
Nama:
PEPERIKSAAN ERCUBAAN PM2011CHEMISTRYKertasSeptember
1%jax
JABATANPELAJARAN EGERI OHOR
Tingkatan
454t 3
Satu am igapuluhminit
JANGAN UKAKERTAS OALAN NI SI|IilI'{GGADIBERI.TATIU
1. Tuliskan amadan ingkatan adaruang ang disediakan.
2. Keftas oalanni adalah alamdwtbahasa.3. Soa/an alamBahasa nggerts
mendahului oalan angsepadandalamBahasaMelayu.
4. Calon ibenarkan enjawabkesel ruhan fausebahagian oalansama ada dalam Bahasa nggeris tauBahasa Melayu.
5. Calon ikehendaki embacamaklumat ihalaman elakana ertassoalan ni.
UntukKeg naanPemeri sa
Soalan MarkahPenuh MarkahDiperoleh
1 18
a 15
3 17
JUMLAH
Kertas oalannimengandungi3 halaman ercetak an halamanidak ercetak.
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1 Table 1 shows he observations n three est tubes used o investigate he effect ofother metals on rusting.A mixture of jelly solution,potassium hexacyanoferrate(lll),K3Fe(CN)6olution and phenolphthalein ere used as medium n each est tube. Theobservations uere ecorded fterone week.
Jadual I menunjukkan pemerhatian dalam tiga buah tabung ujiyang digunakan untukmenyiasat kesan logam lain ke atas pengaratan. Medium yang digunakan di dalamsetiap tabung uji adalah campuran larutan agar-agar, larutan katiumheksasianoferat(lll), KsFe(CN)6 dan fenalftalein. Pemerhatian direkod se/epas safuminggu.
Test ubeTabunq uii
ObservationPemerhatian
1 week1 minggu
--F\__
lron nailcoiledwith copper tripPaku besi dililitdengan
kepingan kuprum
tl
1 weekI minggu
l ronnailcoi led i thzincstr ipPaku besi dililit dengan
kepingan zink
ill
1 weekI minggu
-
lronnailPaku besi
Table 1Jadual I
ReferenceiPetunjuk: E*l Blue spot tompok birur.TFf Pink spot I tompok merah ambu
45{1/3 O 20l l H k b elajaran
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(a) State one nference or each est ubes ,.lland 1l.Nyatakan satu inferens untuksetiaptabung uiil, tl dan ll.
Tesl ube :Tabung ujil:
II
II
E^F
ExaminefsUse
1(a)
tE
1 b)
m
Test ube l:Tabung ujiIt:
Test ube ll:Tabung uji IIt:
(b) For hisexperiment, tate:Bagi eksperimen ni, nYatakan:
(i) The nunipulated ariable."Pemboehu ah d maniPYI si.
(iD The respondingariable.
Pem boleh bah bergera b a a s.
(iiD The constant ariable.Pembolehubah dima arkan.
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ForExaminer's
Use
1(c)
m
SULIT 4
(c) State he hypothesisor he experiment.Nyatakan ipofesls agi eksperimen ersebut.
(d) State he operational efinition or the rusting of iron nail.Nyatakan defrnisi secara operasi bagi pengaratan paku besi.
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Diagram 1 shows he apparatus et-up f an experiment.Rajah 1 menunjukkan susunan adas bagi satu ekspeimen.
Diagram 1Rajah I
Predict n observation or the experiment ftera ueek.Ramalkan satu pemerhatian daripada eksperimen tu selepas satu minggu.
(e)
[Lihat hnlartran sebelahSULIT
Jellysolution Larutan agar-agar+
potassium exacya ofenate(ll), K3FeCN)6solutionIa utan ka u m he ksa ianoferat( , KsF (CN)a
Phenotphtha Jin fenotftatein
lronnailcoiled ith ead stripPaku besidililit dengan kepingan
plumbum
4*1113 O 201I Hak CiptaJabatan elajaranNegeri ohor
rofExaminer's
Use
1(e)
[ETotal
1l1I | ._ |
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FdExaminer's
Use
2(a)
[E
SULIT
Diagram shovra he apparatus etup or an experimento determinehe endpoint ftitrationnneutralisationeaction.
Rajah menunjukkan usunan adas atu ekspeimen agimenenfukan akat khirpentitratan alam indak alas eneutralan.
BuretteBuret
Hydrochloric cidAsidhidroklorik
Conical lask kelalang on
50 cm3 f 1.0 nol m-3 odium ydroxidesolution phenolphthalein50 cm3 arutan atium hidroksida .0moldm-3+ fenolftalein
Diagram
Rajah 2State wo observationshat ou ould btain uring he experiment.Nyatakan ua pemerhatian angboleh nda dapatisemasa ksperimen.
,l
(a)
2.
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-I
SULIT
The experiment s repeated hree imes and he volume of hydrochloric cid used oreach set s shown n Table 2.Eksperimen tu diulang iga kali dan isipadu asid hidroklorik ang digunakan bagi setiap
set ditunjukkan pada Jadual 2.
Table 2Jadual 2
(b) Record he burette eadings n the spaces provided n Table 2.Catatkan bacaan buret pada ruangyang disediakan dalam Rajah 2.
ForExaminer's
Use
[Lihat hnhman sebelahSULIT
SetSef
Initial eadingBacaan awal
FinalreadingBacaan akhir
I
. . .cm' , . .cm'
II
. . . .cm3 . . . . . .cm3
ilt
, . .cm' . . .cm'
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ForExaminels
Use
2(c)
rtr
2(d)
m
SULIT
4gll3 O 201 Hak Cipta Jabatan elajaran Negeri Johor
8
Construct a table o record hsdata from sets l, ll and lll.The able should ncludethe initial eadlng, inal reading and the volume of hydr,ochloric sed n thetitration.Bina satu adual untuk merekod data bagisetl, ll dan ll itu. Jadual tersebuthendaklah mgngandungi bacaan awat, Sacaan akhir dan iipiii.asia
hidroktorikyang digunakan dalam titratan.
(d) The chemical equation or the reaction s shown below:Persamaan kimia tindak balas ditunjukkan di bawai:"'
HCI + NaOH -, NaCl + Hz O
calculate he average,vorume f hydrochroric cid, HCrneeded o neutrarise50 cm3 of 1.0 mol dm-3 sodium ryciroxiOe, aOH of uiion.--
Htungkan isipa6.rl q ?ta gag a i d h d okrorik, cvii
g'ipe
rukan untumeneutrarkan.s0m" arutan atrium idroksida.o mitd;-i, N;oH.'--'
(c)4
14
W1I/t4/-
t/v/rlrht
r-rIrylftN'
'1
la
SULIT
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(e) During he titration rocess, tate he relationship etween he concentrationhydroxideon, OH- n sodium ydroxide, aOH olution ith ime untiltheendpoint f itration.
Semasa proses pentitratan, nyatakan hubungan antara kepekatan on Ol-f dalamlarutan sodium hidroksida, NaOH dengan masa sehingga akat akhir pentitratan.
(f) Classify he ollowing cids nto monoprotic, iprotic nd riprotic cid.Kelaskan asid-asid erikut kepada asid monoprotik, iprotik dan triprotik.
Hydrochloriccid Sulphuric cidAsidhidroklorik Asid sulfurik
Ethanoic cid Nitric cidAsid etanoik Asid nitrik
Phosphoric cidAsid fosforik
Monoprotic cidAsidmonoprotik
Diprotic cidAsiddipratik
Triprotic cidAsid triprotik
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rorExaminer's
use
2(e)
m
2(f)r-;I l3 lTotal
z
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SULIT 10
t
Diagram shorus ome amples fbattery. attery s a voltaic ell hatcan be builtusing ny rruo ifferent etals nd suitable lectrolyte.Raiah 2 menuniukkan eberapa ontoh bateri.Bateriialah e1'enr.s etkimia angboleh ibinamengguna&an ebarang ua ogam berlainan an elektroft ang sesuai.
DiagramRajah 2
Voltmetereading fvoltaic elldepends n he pairof metals sed as electrodes.Bacaan oftmeter elRimia ergantung epada asangan ogam ang digunakansebagai leltrod.
Plan laboratory xperimento nvestigatehatdifferent airs fmetal roducedifferentoltage f a voltaic ell.Yourplanning hould nclude he ollowing spects:Rancang afu ekspermen ntuk menyiasat ahawa asangan ogam yang berbezamenghasilkan voftan se/ kimia yang herbeza. Perancangan anda hendaklahmengandungi aspeft-asp k be ikut
(a) Problem tatementPernyataan masalah
(b) Allthe ariablesSemua embolehubah
(c) Hypothesis
Hrpofesrb(d) Listof material ndapparatus
Senarai ahan dan alat adas
(e) ProcedureProsedur
(t) Tabulation fdataPenjadualan ata
117 marksl
[17markahlEHDOFQUESTIOil APERKERIAS SOALA,\,TAMAT
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JABATAN PELAJARANNEGERI OHOR
PEPERIKSAAN ERCUBAAN ETARA NEGERI OHOR 011
SKEMAPEMARKAHAN
CHEMISTRYPAPER 1
PAPER 2
PAPER 3
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JULANG OHOR 011CHEMISTRY
PAPER TANSWER
QUESTION ANSWER1 A2 C3 A4 B5 B6 B7 A
8 DI A10 D11 D12 A13 c14 D15 c16 D'17 c18 D19 c20 A21 B22 c23 A24 c25 B
QUESTION ANSWER26 A27 B28 c29 B30 C31 c32 B
33 D34 A35 A36 A37 c38 B39 D40 c41 B42 D43 B4 c45 D46 B47 D48 B49 A50 D
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No. Mark scheme Submark
Totalmark
2 (a) (i) z 1
3
(ii) U 1
(iii) W 1
(b) (i) 2.8.1 I
2(ii) X* 1
(c) (i) They have same number f shells nbOloccupieO itnelectrons
1
2ii) x,Y,z i l x>Y>z 1(d) (i)
4X+O,2X + T"Q,
-* 2XzO ll+ XeO
Conect eactants nd products 1Conectly balance 1
1+1
3
(ii)Zz + HrO ---+ HZ + HOZ 1
TotalMark
10
No. Mark scheme Submark
Totalmark
3 (a) Melting 1 1
3 (bxi)
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Correct xiswithunitsCorrect raph and 90oC s stated
4I
1
5
3(bxii) The molten is stirred ontinuously hroughout heexperiment
1
(i i) Thermometer
Boilingube
MoltenX
Conicalflask
Labelled diagramConect and func{ionalapparatus
1i1l
3(c) Because n atom consists f an equal number felectrons and protons.
1 1
3(d) 80
Br35
1 1
3(eXD Atoms of the same element with the same number ofprotons / proton number but different number ofneutronV ucleon umber
12
3(eXii) Use n phosphate ertilizers / to study he metabolism fphosphorus n plants
I
Total mark 10
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(a) (i)
(iD
(iii)
(iv)
(b)
Section A
Haber
Nitrogen and Hydrogen
To get a betteryield
1. To make ertilisers2. To produce nitric acid
ParacetamorlICodeine 3-methytmorphine
Addiction depression nausea vomiting itchingdrowsiness dry mouth / orthostatic ypotensionurinary etention miosis constipation
Activate evel of alertness /Reduce ormal atigue lElevate mood /Stimulate ctivity f brain centralnervous ystem.
1
1
1
1
1
1
(c) (i)
(ii)
1+1
Totalmark
(iiD
Cure sore hroatMerawat akittekakTreat skin woundsMerawat uka kulit
10
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Mark Scheme
Heat eleased hen 1 mole f metal s displaced rom tssalt solution y a moreelectropositive etai.
a: heat hange
exothermic
1. Brorrvn oliddeposted.2. The colour f solution hange romblue o ight blue
colourless.3. Container ecomes ot4. Mass of zinc decreased5. Size of zinc becomes hinner
[Any wo]
Energy
o Conect wo energy evels and axis abeled nergy.. Conect eactants, roducts nd value of AH.
No. of mofeCUSO+= 0.2\(25]'/ 0.005 mol1000
Heat energy eleased 0.005 motx 190 kJ mol'1il= 0.95 J 950 J
Value of AH more higher han 190kJ.
Magnesium s more electropositive ompare inc nelectrochemical eries lDistance etweenmagnesium nd copper s urtherthan he distance etween incand copper nelectrochemical eries.
Sub TotalMark , Mark
:
44t ' t :
ai
1.
2.
AH = -190 kJ mofl
ZnSOa + Cu
Total mark
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No. Mark Scheme SubMark
TotalMark
5 (aXi) Copper(ll) xide 1 1
(ii) Neutralisation 1 1
(iiD Conect eactants nd productsBalance he equation
2HCl+CuO)CuCl2 + HzO
4t
12
(iv) To complete he reaction 1 1
5(bXD Double Decomposition Precipitation eaction 1 1
(ii) Ag"+Cl-)AgCl 1 1
(iiD Filtration 1 1
(c) Cation : Cu2*Anion : Cf
11 2
Total mark 10
No. Mark Scheme SubMark
TotalMark
6 (a)
(b)
(c)
(d)
Yellow precipitate
NazSzOg HzSO+-+ azSOe+ + HzO+ SO,
1. Rate of reaction or Eiberiment is hiqher hanExperiment (orviceversa).
1. Temperature n Experiment is higher.2. The kinetic nergy f he particles s higher.3. The requency f collisions etween * ons and SzOr -
ions ncreases4, The requency f effective ollisions ncreases.
1
1
1
11
4I
II
1
1
1
A
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(0
Temperature/oC
Time s
The higher he emperaturethe shorter he ime aken or the egg o become ard-boiled lvice versa
Section B
No, Mark Scheme Submark
TotalMark
7(a) (r) Anode: Silver rod/foil)Cathde: lron keyElectolyte: Silvs nihate solution
1I1 3
(iD Anode : Ag +Ag' +sCathode: Ag'+e*Ag
11 2
(iiD 1. Use a smallelectricalcurrent2. Use ow concentration fthe silvernitrate olution.3. Turn he iron key slowly during experiment.4. Clean he ron keywith sandpaper efore arrying utexperiment.
Any two
2 2
7(b) 0 Experiment and l
1+1
I
1. Rate of reaction nexperiment is higherllThe eaction nexperiment is faster
2. Metal P is moreelectropositivecompared ithmetalQ in heelec'trochemical eries
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I 3. Deposit f brownI metal s more nI
I exp€r;menli compared withi experiment l
Experiment and ll
A
- . Distance betweenmetals and Cu s
further han metal Qand Cu n heelectrochemical eries
(ii) MetalP :Aluminium, lMetalQ:ZnlFe/Sn
r: PbMolof CuSO+ olution t0.1\ €SI ll 0.0025 mol
1000
Ratio 1 molofCuSO+ roduced molCu0.0025 molof CUSO4 roduced .0025molCu
Mass of copper = 0.0025 molx 64= 0.16
(iiD
Comoarison Exolanation5. There s a reaction n
experiment and noreaction nexperiment ll
6. Metal P is moreelectropositivecompared ithcoppermetal n theelectrochemical eries
7. There s browndeposit n experimentI and no deposit nexperiment ll
8. MetalP s placedhigher han copper nthe electrochemicalseries / Copper metalis placed below metalR in theelectrochemical eriesIl metal P is moreelectropositive han Cu
1+1
1+1
1+1
1
1
1
1
1
I
2
3
Total mark 2A
No. Markscheme Submark
Totalmark
8(a) The number fmolecules 1.5 6.0ZiT0F= 9.03 1023
11
2
8(b) Urea, CO(NH2)2
2n4\ xl}Oo/o = 46.670/o12 + 16 +(14+2)2
1
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Ammonium itrate,
2(14],14+4+14+3(16)
Hydrazine, N2Ha
zfi4\2(14) 4(1)
NH4NO3
x 100o/o 35.0olo
x lA9o/o = 87.5o/o
Hydrazine as he highest percentage mass of nitrogen
1
4I
1 4
8(c) 1. Double ondFormed when wo pairs of electrons re shared betweentwo non-metalatoms.
2- Triple ondFormed when hree pairs of electrons re sharedbehreen wo non+netal atoms.
1
1
1
1 4
8(d)
(d)
(i)
(ii)
Compound KzO SO,
1 Physicalslate troom emoerature Solid Gas2 Meltingpoint High Low
Accept: A meltingpointof KzOis hiqherthan O,
3 Eledricalconductivity
Gan conductelectricity nmolten oraqueous tate
Cannotconductelecficity n allphysicalstate
4 Solubilitvn water Soluble lnsoluble
Answers an be n sentence orm o show comparison.
KrO:1. forces of attraction etween ons n KzO s stronger han
SO,2. more heat s needed o overcome break he attraction
forcell viceversa or SOz
1+1
1+1
1+1
1+1
1
1
8
2
Total mark 20
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9
Section G
No. Mark Scheme SubMark
TotalMark
9(a)
But-2-ene
2-methylpropene l2+netfrylpropl-ene
HHHHt l t l
H-C-C:Q-C-Ht lHH
HHt l
H-C:C-C - Hl lIH
H- C-HI
H
1+1
1+1 4
(b) 0(ii)
Propanoic cid Ethanol
tAccept f student name he reactants orthe productsl
Chemical roperties or propanoic cid:1. Reactwith readive metral roduce salt and hydrogen as
II2. Reactwith bases produce alt and water l3. React with carbonates metal prduce salt, carbon
dioxidegas and water l4. React withalcohol produce ster
[Any wo answers]
Chemical roperties or ethanol:1. Undergo ombustion roduce arbon dioxide nd water
// Bumt n orygen o produce COz and HzO2. Undergo xidation roduce arboxylic cid ethanoic
acid l React with acidified KzCrzOt MnOr to producecarboxylic cid
3. Undergo ehydration roduce lkene ethene.[Any wo answers]
1+'t
11
11
2
4
(c)Reaction ith bromine ttp://e u.jos uat y.com
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l0
1. Pour bout 2 -5 cm"] fhexane ntoa test ube.2. Add 4-J drops of bromine aterand shake.3. Observe ny changes nd epeat withhexene.
Observation:Hexane: rown olour emains nchanged.Hexene: rown olours ecolourise turncolourless.
Reac'tion ith acidified otassium anqanate(Vl) solution
Procedure:1. Pour about 2-5 cm3 of hexane ntoa test ube.2. Add 4-5 drops of potassium manganate(Vll) olution
and shake.3. Observe ny changes nd repeat with
hexene.Observation:Hexane: urple olour emain nchangedHexene: Purple colours decolourise.
[Any wo tests]
No l/lark scherne Submark
Totalmark
10 aXD Sample nswer:MetalA: Magnesium/Mg
Mg -+ Mgt* + 2eReadant and produc-t onectBalance he equation onectly
1
14t ?
(ii) Oxidation 1 1
(b) Solution X : Ferum (ll) sulphate reSOa
Solution Y : Ferum (lll) sulphate Fez(SO+h
Reducing agent .Fe2* Ferum (ll) sulphate FeSOn lron(ll)ionReason : oxidation number ncrease rom +2 to +3
Oxidising gent: Fe3* Ferum lll)sulphate Fez(SO+)glron(lll) onReason Oxidation umber decrease rom +3 to +2
1
1
1
1
1.lI o
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l1
Galvanometer
Carbonelectrodes
Chlorine water Potassiumbromidesolution
U-tubeDilute sulphuric cid
Conect and fundional apparatusConectly abelled'
1. Suitable hemical potassium romide olution /anysuitable hemical olution
11
2.3.
4.
Dilutesulphuric cid s poured nto a U-tubeA dropper s used o fill one arm of the U-tube withchlorine waterPotassium romide solution s added carefullytoanother arm of the U-tubeBoth arm of the U-tlbe is fitted with carbon electrodeReducing gent: potassium romide olutionAt negative electrode, romide ons are oxidized obromine2Br- Brz + 2eAt positive lectrode, hlorine
re reduced o chloride
11
5.6.7.
8.9.
11111
1rcns1O.Cl2+2e+2Cf
Max=
10
Totalmark 20
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SULIT
PEPERIKSAAN ERCUBAAN PM2011CHEMISTRYKertas 3September
JABATANPELAJARAN EGERI OHOR
4s4r/3(PP\
4s4u3
SKEMA PEMARKAHAN
UNTT]K KEGTINAAI\IPEMERIKSA SAHAJA
Peraturan emarkahan ni SIILIT dan Hak Cipta Jabatan Pelajaran Negeri Johor.Kegunaannya dtusus untuk pemeriksa yang berkenaan sahaja. Sebarang maklurnat
dalam peraturan pemarkahan ni tidak boleh dimaklumkan kepada sesiapa. Peraturanpemarkahan ni tidak boleh dikeluarkan dalam apa-apabentuk media.
Peraturan pemarkahan ni mengandungi 18 halaman bercetak
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SULIT 2
Marking Scheme aper 3
4s41l3(PP)
Question MarkScheme Score1(a)
I
Able to state one nference or each experiment-
Sample answers:
Test ube : lron usuoxidised liron atom eleased lectron//iron(ll)ons Fe2*formed/iron(ll)ons presenU/rusting ccur
Test ube l : lrondoes not ust / iron(ll)ons are not present /zincconodes Izincatom eleased lectron//zinc ons ormed lzinc oxidised
Test ube ll : lron rusuoxidised l ironatom eleased lectron//iron(ll)ons Fe2*formexJlrusting occur liron(ll)ons present
3
Able to state any two inferences2
Able to state any one inference1
No response rwrong response 0
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SULIT 4541/3(PP)
Question MarkScheme Score1(b) Able to state he hypothesis ccurately
Sample nswer
\A/hen morefless lectropositive etal s in contact withironfferum/Fe,he metal nhibitV(speeds p) rusting/corosion firon l
When a more/less lectropositive etal s in contact withiron/ferumlFe, usting f ronlferumlFe s faster/slower l
lf the metal n contact with ron s higherflowerhan ronlferum/Fe nelectrochemical eries, he rusting/conosion f ron s slower/fastertl
The higherllower he mdal in contact with ron n electrochemicafseries/than ron/brum/Fe, he rustingfconosion f ironfierum/Fe sslower/fiaster
3
Able to state the hypotesis conectly
Sample answer
lMren a morcy'less lec-tropositive etal, he metalinhibits(speedsup) rustinglconosion tiron l
lf the metal n contactwith ron s higher han ronlferumlFe nreactivity eries, he rusting/conosion f iron s slorerlf,aster//
The rusting of ron/ferumlFes faster/slower, f a more/lesselectropositive etal s in contactwith ronfferum/Fe
2
Able to state the idea of hypothesis
Sample answer
Differentmetal n contactwith ron,will cause ron o rust /
Metalcan cause ron o rust.
1
No response r wrong esponse 0
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.SLIL[T
l
Question Mark Scheme Score1(c) Able o state he hree variables orrectly
Sample nswer:
(i) Manipulatedvariables:Type/different etals / position fmetal n electrochemicalseries
(ii) Responding ariable:Rusting conosion / presence fblue/pink olour
(iii)Constant ariable:Size/mass f ron nail ltype of nail l clean ron nails /temperature / medium n which he ronnailsare kept
aJ
Able to state any wo variables correctly. 2
Able to state any one variable correctly. I
No response orwrong response0
4541/3(PP)
I : ,1. ' S{ILIT
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Question MarkScheme Score1(d) Able to give the operational definition accurately
Sample nswer
\A/henron s n contact withmetal ower han ron n electrochemicalseries, luecolourationndicates usting /
Rusting ccurswhen ron nail s in contact with copper/tin lesselectropositive etaland orm blue colouration//
Bluecolourations formed when ron s in contactwith metal owerthan ron n electrochemical eries
aJ
Able to give the operational definition correctly.
Sample answer:
Bluecolourationndicates usting l
Rusting ccutrs hen ron nail s in contact withcopperftinlesselectropositive etal
2
Able to give an idea of the operational definition '
ggpte l:Rusting ccurswhen he colourof solution hanges. /Rusting ccurs
I
No response orwrong rcsponse 0
SULIT 4s41l3(PP)
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SULIT 4s4U3GP)
Question MarkScheme Score1(e) Able to predic't any one the obseruations based on the
laboratory experiment correctlYSample answers
BluespoUcolourationl
lronnailbecomes maller /
Lead trip emains nchanged
3
Able to predict one observations ess correctly.
$ample answgl:PinkspoUcolouration
2
Able to give an idea of observations.
Sample ansuter;
lronrus{s / Brown deposiUspot
1
No response orwnong response 0
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SULIT 4s41l3(PP)
QuestionMarkScheme Score
2(b) Able o record he burette eadings ccurately with 2 decimalpoints.
Answer
Set Initialreadinq FinalreadinqI 0.00 26.00u 0.50 24.50til 5.50 30.50
3
Able to record he burette eadings correctly.
Answer
Set lnitialreadino FinalreadinqI 0 / 4.0 26 / 26.0il 0.5 24.5
Iil 5.5 30.5
2
Able to record any reading rom the the burctte completely.
Sample Answer:
Set Initialreadinq FinalreadinoI 0 26
II 1.5 25.5
ill 6.5 31.5
1
No response rwrong response 0
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SULIT 4s41l3(PP)
Question Mark Scheme Score2(c) Able to make a table o record he the data rom hree
experiments ccurately ith units.
Sample Answer:
Set lnitialreading/cm-Final eading/
cm-Volume CI/
cmuI 0.00 26.00 26.00
il 0.50 24.50 24.00
ilr 5.50 30.50 25.00
3
Able to make a table o record he data rom three experiments
accurately without units or correctly with units.1. Answer:
Set Initialreading Finalreading Volume HCII 0.00 26.00 26.00
il 0.50 24.50 24.00
ilI 5.50 30.50 25.00
2. answer:Set Initialreading/
cm-
Finalreading/
cm
VolumeHCI/
cm'I 0 / 0.0 26 / 26.0 26 / 26.0
ll 0.5 24.5 24 / 24.0
III 5.5 30.5 25 / 25.0
2
Able to make a table to record any data including thefollowing:
- Reading rom 2(b)- Heading without units- Set of experimenl
1
No response rwrong esponse 0
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SULIT 10 4s4r/3(PP\
QuestionMarkScheme Score
2td) Able to calculate he average olume of hydrochloric cidaccurately.
Answer:
26.00 24.00 25.00 = 25.00 m33
3
Able to state the average volume of hydrochloric acidaccurately with units,
@r:25.00 cm3
2
Able o state he idea of average olume of hydrochloric cid.
Sampleanswen : ' r ' : r ' ' : '
25.00 l25.O t25 tt (Awrage eading atafrorn 2b) + v {2 '3
1
No response rwrong esponse 0
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SULIT t1 4s41l3(PP)
Question Mark Scheme Score2(e) Able to state the relationship between he concentration of
hydroxide on, OH- n sodium hydroxide, NaOHwith time untilthe end point of titration accurately.
Sample answer:
The concentration f hydroxide ons/OH- ecreases ith ime. //
The onger he ime aken, he ower he concentration fhydroxideions/OH-
3
Able to staG tre relationship between ie concenfation
hydroxide on, OH- n sodium hydroxide, NaOHwith time untilthe end point of titration inaccurately.
Sample answer:
The concentration ecreases ith ime- //
The onger he ime aken, he loter the concentration
2
Able to state an idea of the relationship beturcen heconcentration hydroxide on, OH'in sodium hydroxide, NaOH
with time until the end point of titration.Sample answer:
Concentration ecreases / Lowerconcentration
'l
No response rwrong esponse 0
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Question MarkScheme Score2(fl monoprotic, iproticand riprotic
acid accuratelY.
Answer:Monoprotic, cid Dioroticacid Trioroticacid
HydrochloriccidEthanoic cidNitric cid
Sulphuric cid Phosphoric cid
3
to monoProtic, iProticandtriprotic acid accuratelY.
2
into monoProtic, diProtic andtriprotic acid accuratelY.
1
No response or wrong response 0
SULIT l2 4s41l3GP)
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Question MarkScheme Score3(a) Able o give statement f the problem accuraGly.
Sample answer:
Does he position/distance etween wo metals n electrochemicalseries affect he voltmeter eading/voltage/potentialifferen e?
Does he positionldistance etween airof metals nelectrochemical eries affect he voltmeter eading/voltage/potential ifference? /
Does he urther he distance f twometals n electrochemicalseries. ncrease he potential ifference?
3
Able to give statement of the problem correctly.
Sample answer:
Does he positionidistance etween metals n ElectrochemicalSeries affect he voltmeter eadi g/volta e/potenti l differen e?
Does pairof metals n electrochemicalseries ffect he voltmeterreading/voltage/potential ifference?
2
Able to give an idea of statement of the problem correctly
Sample nswer:
Does he position/distance etween wo metals n reactivity eriesaffect he voltmeter ead ng/vo tage/potenti l differen e?
Metals roduce voltage.
1
No response rwrong response 0
SULIT I3 u ::
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eUe to state he three variables correctly
Sample answer:
Manipulated ariableResponding ariable
Constant ariable
: Pairs of metals:'Voltage / voltmeter eading / potential
difference: Electrolyte / the metalas thepositive/negativeerminal /volume nd concentration f electrolyte
Abletbstate any wo variables orrectly
Able to state any one variable correctly
No response r wrong response
SULIT t4 4s41l3(PP)
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SULTT l5 4s41l3(PP)
Able o state he relationship etween he manipulated ariable
and he responding ariable and state he direction accurately.Samplq answer:
The urther he distance f he pairof metals n he electrochemicalseries, he voltage voltmeter eading potential ifferencebecomes reater. /
The urther he position f twometals n electrochemical eries, hehigher he voltage potential ifference eading
between he manipulated ariable
and the responding variable and without stating tfie direction.S3mple nswer:
The distance f the pairof metals n the Elmtrochemical eries.inffuences he voltage volfrneter eading potentialdifference
Able to state he idea of hypothesis correctly
Sample nswer;
The urther he d