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7/27/2019 Chemistry Johor 2011.pdf
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4541tlKimiaKertasSept24fi1% am
JABATAN ELAJARAN EGERIOHOR
PEPERIKSMN ERCUBAANPM2011
KIMIA
Kertas
Satuam imabelasminit
JANGANUKAKERTAS
OALANNISEHINGGAIBERITAHU1. Kerfassoalanni adalah alamdwibahasa.2. Soa/an alambahasanggerismendahuluioalanangsepadan
dalambahasaMelayu.3. Calon ikehendakimembacaaklumatihalaman elakang ertas
soalanni.
Kertasoalannimengandungi4halamanercetak
[Lihat ebelahSULII
454111@201'lHakCiptaabatanelajaranegeriohor
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B a n k S o a l a n S P M . b l o g s p o t
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suuT 4*1/,1
1 Vrrhichf he ollowingeleases eato hesurrounding?AntaraangMrikut,yangmanakahmembebaskanaba e persekitann?
A Addacid o alkaliTambah sidRepadalkali
B Heata carbonatealtPanaskanatugaram arbonat
C Dissolveomeammoniumalt nwaterLarutkan edikit aramammoniumidalamair
D Adddiluteacld osodium ydrogenarbonateTambah sidcalrkepada aftiumrydrqenkarfunat
2 Nameheprocess f soappreparation.Namakanros€spenye iaan eah n.
A DehydrationPendehidratan
SulphonationPengsulfonan
SaponificationSaponflTkast
PolymerisationPempotirnenn
proron
l/Vho roposedheabovemodel?Siapakahangmencadangkanodel i atas?
A ErnestRutherford
B JamesChadurick
C J.JThomson
D NeilsBohr
2454lll@2011akciptaabatanelajaranegeriohor S{TLIT
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__
4il1t1
ollowing quation epresents reaction.Persamaanberikutmewakili satu tindak balas.
3H21d N2tu; 2NHqsy
What is the relativemolecularmassof the product?
[Relative tomicmass 'H=l; N=!4 ]Apakah isim molekul relatifbagi hasil ersebut?
[Jisimatomrelative: H=l; N=l4 ]
A2
817
c28
D34
\/V}rich f the followingare the specialcharacteristics f transitionelements?Antara yang berikut, yang manakah merupakan ciri istimewa bagi togamperalihan?
I Formcoloured ompoundsMembentu sebati n benuarna
ll Can be usedas catalystBoleh digunakan sebagaimangkin
lll Have ow meltingpointMempunyaitakat leburyang rendah
lV Haveonly oneoxidation umberMempunyai satunombor pengoksidaan ahaja
A lonlyI sahaja
B land l lonlyI dan ll sahaja
C l, l l and l l onlyI, ll dan tll sahaja
D l, l l , l l l and VonlyI,ll,lll dan V sahaja
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sul-rT
4
DiagramRajah
Diagram showshenumber f atomsna molecute. hichbe hemolecule?Rajah1 menunjul<Ranilanganatamdalamsatumateku!.yangmanakah ungkinmolekulitu?
A Carbon ioxide
Katbondioksida
B AmmoniaAmmonia
C ChlorineKorin
D WaterAir
Which fthe ollowingsan electrolyte?Antaraangberikut,angmanakahmerupakanteWrolit?
A Copperll} sulphateolutionLarutanuprumll) suffat
B Molten aphthaleneLebunnnaftalena
C GlucoseolutionLarutan lukosa
D ZincmetalLqam zink
434trt
of the following ould
Antarc yang berikut,
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SULIT
)
4541t1
Diagram shovrs he pH values or solutionP,Q, R and S with he sameconcentration.Rajah 2 menunjukkan nilai pH bagi larutan larutanP, Q, R, dan S dengan kepekatanyang
sama.
pH
scale
DiagramRajah2
\Mratare he possible olutions f P, Q, R and S?Apakah larutanyang mungkinbagiP, Q, R dan S?
Ethanoic acid Sulphuric acid Sodium hydroxide Sodium chlorideAsid etanoik Asid suffurtk Natrium hidroksida Natrium klorida
\Altrich f the followingsalts can be preparedby precipitationeaction?Antara garam yang berikut, yang manakah boleh disediakan melalui t indak halaspemendakan?
A Barium ulphateBarium sulfat
B Sodiumchloride
Natrium kloida
C Aluminium nitrateAluminium nitrat
D Potassium arbonateKalium karbonat
A
B
c
D
Lihat sebelah
P o R S
P o S R
o P R S
o P S R
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SULIT 4541t1
10 AlloyX is madeby mixingronwithcarbon,hromiumndnickel. hat sX?AloiX diperbuat enganmencampurkanesidenganRarbon,romiumdannikel.ApakahX?
B PewterPiuter
C BronzeGangsa
D Stainless teelKelulitahan karat
11 \Mich of the followingdoes not affect ate of reaction?Antara yang berikut,yang manakahtidak mempengaruhikadar tindak balas?
A Total surfacearea of reactantJumlah luaspermukaanbahan tindak balas
B Concentrationf solutionKepekatan arutan
C Presenceof catalystKehadiranmangkin
D Volumeof solutionlsipadu larutan
12 Wtich of the following rganic ompoundwillundergo ydrogenationeaction?Antara yang berikut,yang manakah sebatianorganikyang akan mengalami tindakbalaspenghidrogenan?
A PropenePropena
B PropanePropana
C PropanolPropanot
D Propanoic cidAsidpropanoik
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13 \A/lrichf the ollowing xplains n oxidation rocess?Antarayangherikut,yangmanakahmenerangkanproses engoksidaan?
Lossof oxygen
Kehilangan oksigen
Gain of electronsPenerimaan electron
Lossof hydrogenKehilangan hidrogen
Decrease n oxidationnumberN ombo pengol<sid an berku ang
DyesPewama
ThickenerPemekat
AntioxidantPengantioksidd
PreservativePengawet
74541/l@2011 elajman
4541t1
in vinegar. What typ of food
buah 'manggadi dalam cuka.
tihat sebelah
14 Pickled mango is preparedby soakingmangoadditives vinegar?Jeruk mangga disediakandenganmerendamApakahenisbahan ambahmakananbagicuka?
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SULIT
15 The thermochemicalquationor the decompositionf calciumcarbonate,is as follovus:Persamaan termokimia bagi penguraian kalsium karbonat, caco3 adatahberikut:
CaCO3 + CaO + COz AH=+l7gkJ
wrich of the followingenergy eveldiagram epresentshe equation?
lntlrayang berikut, yang manakah gambarajah aras tenagi mewakiti persamaan
itu ?
AtrnergyTenaga
EnergyTenaga
cEnergyTenaga
EnergyTenaga
45d.1tI
CaCO3
seperti
B
D
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= +178
CaO+ COz
= +178
CaC03
AH= +178
AH= +178
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DiagramRajah3
Whatare he hreestates f matter?Apakah eadaanizikaljirimdi atas?
tl i l lGasGas
LiquidCecair
Sol idPepejal
SolidPepejal
LiqudCecair
GasGas
LiquidCecair
Sol idPepejal
GasGas
LiquidCecair
GasGas
Sol idPepejal
f he substanceelow ontainshesamenumber f atoms s n oneof chlorineas?Antarabahanyang berikut, ang manakahmengandungi ilanganatomsamadengansatumolgasklorin?
A 1 molneonI rnolneon
Tzmolsodium% mol natrium
T"mol carlcon ioxide% mol karbon dioksida
4841'1
mole
yang
i l l
A
D
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SI'LIT4541t1
Diagram4Rajah
Diagram 4 shovus parts of the periodic Tabre of Erements.Tle symbols x, y andz arenot heactuar ymbors f heerements.\Mich of thefollowing hourshe correct rrangementf elements , X, y andZ inorderof ncreasingtomic ize?
laian + menuniukkan ebahagian adua!BerkalaJnsur. imbot-simbolw, x, y danZ tidakmewakili imbo!sebenir unsur.Altara yang berikut,yangmanakahmewakilisusunan ang betut pertambahan
aizatombagiunsur-unsurW, , y danZ ?
A W,X,Y,Z
B X,Y,W,Z
C Y, Z,X,W
D Z,Y,WX
10 Lihat sebelnh454lll@ 20l l Ilakcipta Jabatan elajaran
18
W Y z
X
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19
SULIT 4541tI
DiagramRajah5
In Diagram , substance lights p he bulb n themolten tate.Mich statementbestexplainshe observation?
Dalam Rajah5, bahanX menyalakanmerrtotdalamkeadan eburan.Pemyataanyangmanakah alingbaikmenerangkanemerhatianersebut?
X consistsof ionsX terdiri daripada ion-ion.
X consistsof moleculesX terdiri daripada molekul-mole4ul
X hasfreely moving onsX mempunyaiion-ion bebas bergerak
X has ons n fixedposition
X mempunyaiion-ion dalam kedudukantetap
20 A studentconstructed chemical ell usinga copper od, a zinc rod,copper ll)
sulphate solution and connectingwires. \A/hichof the following will act as thepositiveerminal?Seorang pelajar membina safu se/ kimia menggunakan rod kuprum, rod zink,
larutan kuprum (ll) sulfat dan wayar penyambung. Antara yang berikut, yang
m an aka h akan meniad terminal positif?
Copper odRod kuprum
Zinc rodRod zink
ConnectingwiresWayar penyambung
Coppe(ll) sulphate olution
Larutan kuprum (ll) sulfat
11
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shouvshe set-upof apparatusor the titration f 25 cm31.0 mol drn3sodiumhydroxide olutionwith0.5 moldm-3 f sulphuric cid.Rajah 6
^menunjut<Ran usunan radasbagi titratan 25 cms arutan natrium hictroksida .0
mol dm' dengan asid sulfurik 0.5 moldm'".
0.5moldm-3 f sulphuriccid
0.5mol dm'" asidsulfurik
25 cm31.0moldm-3 odium ydroxidesolution phenolphthalein
25 cm' larutannatium hidroksida1.0 mol dm'3+ feno!ftalein
4541t1
DiagrarnRajah 6
What is the volume of 0.5 mol dm-3of sulphuricacid solution equired o completelyneutralize 5 cm31.0 mol dm-3 odiumhydroxide olutions?Berapakah isipadu 0.5 mol dm' asid sulfurik diperlukanuntuk meneutralkan engkap 25cm3 arutannatrium hidroksida .0 mol drn?
A 12.50cm3
B 25.00cm3
C 50.00 cm3
D 75.50 cm3
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SULIT 4541t1
22 Wftichof the following ons orm whiteprecipitatehat dissolves n excessamrnoniasolution?Antara ion-ion berikut,yang manakah menghasilkanmendakanputihyang larutdalam larutan ammonia berlebihan?
A Mgt*
B AI3*
c znz*
D Pb2*
23 The equationbelowshows he formationof a compositematerial rom its originalcomponent.
Persamaandi bawah menunjukkanpembentukansatu bahankompositdaripadakomponenasalnya.
Plastic + Glass ibres FibreglassPlastik + Gentian kaca --| Kaca gentian
Why is fibreglassbetter han commonplastic?Kenapakahkaca gentian ebih baik daripada plastikbiasa?
A High ensilestrengthKekuatan regangan tinggi
B Resistanto corrosionTahankakisan
C Able to withstandheatTahan haba
D Good conductorof electricityKonduktorelektrikyang baik
24 Whichof the followingwillmakemeat ast onger?Antara yang berikut,yang manakahboleh menyebabkandaging tahan tebih ama?
A Boil he meat or an hour.Mendidihkan daging untuk satu am.
B Dry he meatunder the sunMengeringkandagingd bawah matahari
C Keep he meat n a refrigerator.
Menyimpandaging di dalampetisejuk
D Fry he meatand keep ntoa container.Menggorengkanagingdan menyimpan idalam bekas
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SULIT
25 The equationbelowshovvs reactionof alkene.Persamaandi bawahmenunjukkan indak balasalkena.
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 Sodiumbromide,NaBrNatrium bromida, NaBr
D Magnesium romide,MgBr2Magnesium bromida, MgBr2
26 The followingshows an ionicequation.Yangberikut menunjukkansuatu persamaanon.
P 1s; Qtn("d * P2*("0 + Q
Basedon the equation,which of the following s true?Berdasarkanpersamaan tersebut,yang manakahbenar?
A P is oxidised.P dioksidakan.
B P2* s oxidised.f dioksidakan.
C Qz* s a reducing gent.Q2*adalahagenpeneurunan.
D Q2' donateselectrons.Q2*mendernaelektron.
4541t1
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shows he results btainedwhenmetalX is added ntosolutionA.Rajah 7 menunjukkan keputusanyang diperoleh apabila ogam X ditambahkedalam larutan A.
SolutionA beforeaddingmetalXLarutan A sebelum ditambahkan ogamX
Solution after addingmetalX
Larutan 4 se/epas ditamhahkan logam
DiagramRajah 7
Which of the followingexplains he reaction?Antara yang berikut,yang manakahmenjelasRan indak balastersebut?
A Displacement nd endothermicPenyesaran dan endotermik
B Displacement nd exothermic
Penyesaran dan eksotermik
C Precipitationnd endothermicP emendakan dan endoterm k
D Precipitationnd exothermicPemendakan dan eksotermik
4541t1
ffi
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SULIT
16
454Ill@ 2011Hakcipta abatan elajaran egeriJohor
4il1tI
tl nl
otl
o- s-tlo
IV
CHsf ( CHz)rr t o- Na*
DiagramRaiah
Based n Diagram ,which s hehydrophilicart n sodium odecyl ulphate?
Berdasarkan ajah8,yangmanakah ahagian idrofilik alamnatium dodekil
sulfat?
AI
Bl l
c l l l
DIV
Lihat sebelah
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ndchlorine-37rehruosotopes fchlorine.Mratare he differencesin hese sotopes?Kortn4l dan klorin3T adalahdua isotopklorin. Apakahperhezaandi antara
isotopisotop ni?
I Proton umberNomborproton
ll Nucleon umberNombor ucleon
lll PhysicalpropertiesSifat-sifatizikal
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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SULIT 4541t1
30 Diagram shows he set-upof apparatuso determinehe empiricalormulaofmetaloxide.n/1h 9 menuniukkansusunan radas untuk menentukan ormula empirik bagiol<sidaogam.
MethodKaedah I
Method lKaedah ll
CrucibletidPenufupmangkukp'jar
ChemicalsubstanceBahankimia
Dryhydrogengas
ChemicalubstanceBahanKimia
Gashidrogenkering
DiagramRajah
\Nhich f the ollowings he correctmatchorMethod andMethodl?Antarapadanan eikut,yangmanakah etulunfukKaedah dan t?
Method Method lKaedah \aedah ll
A Copperll)oxide Lead ll) oxideKuprum ll) oksida plumbum (ll) oksida
B Lead ll)oxide Copper ll) oxidePlumbumll) oksida Kuprum (ll) oksida
C Magnesiumxide Lead ll) oxideMagnesium ksida Plumbum(ll) oksida
D Copperll)oxide Magnesium xideKuprumll)oksida Magnesiumoksida
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1
4&',111
Diagram 0
Rajah 10
An atom of elementX reactswith elementY to form a compound. A/hat s theformulaof the compound ormed?satu atom unsur x beftindak balas dengan unsur y menghasilkan safusebatian.Apakah ormulabagi sebatianyang terbentuk?
AXY
B X,Y
G XYZ
D XzYz
Manycovalent ompoundsre usedas solvents.fthichof the followings not asolventorpaint?Kebanyakansebatiankovalendigunakansebagaipelarut.Antarayang berikut,
yangmanakah ukanpelarutuntukcat?
A EtherEter
B WaterAir
C EthanolEtanol
D TurpentineTurpentin
XY
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33 Diagram 1shows he apparatuset-up n flrs elec{roplatingf an ironspoonwithsilver.Raiah11 manuniul<katosunan adasuntukmenyadursatusudu fusi denganaryentum.
Silver oil /kepinganrgenttmt
SolutionYllarutan
Diagram1Rajil tl
IMratcouldbe solutionY?Antanyangbeikut,yangmanakaharutan ?
A lron ll)sulphateFerum(ll)ultat
B lron ll)chlorideFerumll)klofda
C SllverhtorideArgentumlafida
D SilvernitrateAryentunnttrct
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pH= 1.0
1.0moldm-3hydrochloric cid
4s1t1
pH= 5.0
Ht-----tt:_':F1.0moldm-rethanoicacid
Diagram12Rajah12
In Diagram12, he pH value of ethanoic cid is higher han he hydrochloriccid.Whichof the following, xplain he difference?Dalam Rajah 12, nilai pH asid etanoik lebih tinggidaripada asid hidroklorik. Antara yang
berikut, yang manakah menerangkan perbezaan tersebut?
A Ethanoicacid has lowconcentration f H*Asidetarnik mempunyaiRepekatan f yang ren&h
B Ethanoicacid is a strongacidAsid etanoik iatah asid kuat
C Hydrochloric cid s a weak acidAsid hidroklorik ialah asid lemalt
D Hydrochloriccid has highconcentrationf OHAsid hidroklorikmempunyai epekatanOH-yang inggi
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SULIT
35 Diagram 3shows series f reactionhat nvolvesompound .Rajah13 menunjukkan atu ii tindakbalas ang metibatkanebatianG
45/.1t1
Addedwithdilutehydrochloric cidandfiltered.Tambah asid hidroklorik cair dan dituras
22
4541/l@ 011Hakcipta abatanelajaranegeri ohor
Addedwithammonia olution
untilexcess.Tambaharutanammonrasehinggaberlebihan
Lihat sebelah
SULIT
Diagram3Rajah13
G isa mixture f rrrc alts.Amonghe ollowing, hat sG?G adalahcampuran uagaram.ApakahG?
A Lead ll )nitratendzinc arbonatePlumbum(ll)nitratdan zinkkarbonat
B Lead(ll) itrate ndaluminiumitratePlumbum(ll)nitratdan aluminium itrat
C Silver ulphatendcopperll )carbonateArgentum ulfatdankuprum(ll) arbonat
D Magnesiumulphatend ead(ll) arbonateMagnesiumulfatdanplumbum(il) ahonat
WhiteprecipitateissolvesMendakanutihmelarut
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36 Diagrum4shorrnscamera,Rajah4 menunjukkanejeniskarnora.
QuartsensKantakuarba
Diagram4Rajah4
T/haJypeofglasssusedo makehequartzens?Apakaheniskaea angdigunakanntukmembuatantakuartza?
A FusedglassKacasilikaedakur
SodaimegfassKacasoda apur
BorosilicatelassKacabonsilikat
Lead rystalglaseKacaplumbum
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37 A student carried out an experiment o determine he rate of reaction behoeencalciumcarbonateand dilute hydrochloric cid. The volume of carbondioxidegascollectedat intervalsof 0.5 minutes s recorded n Table 1.Seorang pelajar menjalankan eksperimen untuk menentukan kadar tindak balasantara kalsium karbonat dan asidhidroklorikcair. lsipadu gas karbon diot<siJaiigterkumpul pada selang masa0.Sminit direkoddalamJadial I.
Time (min)Masa (minl
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
F#i""orco2as
f'#r,*sasco2
0 27 46 59 70 79 86 92 95 95 95
Table1Jadual 1
What is the average ateof reaction n the thirdminute?Apakah kadar tindak balaspurata dalamminit ketiga?
A 28.67cmsmin-1
.B 23.75 cm3min'1
C 16 cm3min'1
D 14 cm3min-
38 Propane, gHa ndergoesompleteombustionoandwater,H2O.
produce carbon dioxide,COz
Propana, cslla mengalami pembakaran lengkap untuk menghasilkan karbondioksida,COzdan air, H2O.
calculate the volume of carbon dioxideproducedwhen 0.5 mol propaneburnscompletely t room emperature.
[Molar olume = 24 dmsmol'lat oom emperature]Kira isipadu gas karbon diaksidayang terhasil ipabila 0.5 mo! propana terbakardengan lengkap pada suhu bilik
fisipadumolar=
24 dm3mollpadasuhubilik]
A 72.0dm3
B 36.0dm3
C 24.0dm3
D 12.5dm3
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\Nhat s the oxidationnumberof X in X,.'ot?-on?Apakahnombor pengoksidaanbagiX dalam ion XrOrz-?
A+3
B+4
C+5
D+6
454111
2 shovrrshe temperatureeadingsor the reaction etween 5 cm' of 0.1moldm3hydrochloriccidand25 cm3 f 0.1moldm-3odium ydroxideolution.
Jadual2 menunjukkan acaansuhu untu?tindak batasdi antara25 cm3 asidhidroktorik .1 mol dm'3 dan 25 cmr arutannatriumhidroksida .1mol dmn.
Average nitialtemperatureeforebothsolutions re mixedSuhu awa kedua-dua larutan sebelumdicampurkan 300c
Highestemperaturefterboth olutionsremixedSuhu eftinggiarutan e/epas icampurkan 43"C
Table2Jadual2
Calculatehe heatproducedrom he reaction.Krakan haba yang terhasil daripada indak balastersebut.
A 25cm3 x 4.2J g-1 C-lx 13oC
B 25cm3 x 4.2J g-1 C-lx 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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4547t1
41 Diagram15 shovre he molecularormulaof an organiccompound.Rajah 15 menunjukkan ormulamoteku!hagi suafu sebatiai organik
csHzoo czHs
Diagram5
. Rajah 5
Thecompounds an ngredientn making ineappleam. /r/trats the unction f thecompound?sebatian tu adalahsuafu bahandalampenyediaanem nenas.Apakah ungsisebatianersebut?
To make he jam thickerUntuk memekatkan em
To enhance he flavorUntukmenambah pertsa
To preventoxidationUrttuk menge akkan pep ksidaan
To sweeten he am
Unfukmenambah kemanisan em
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4s41t1
TableJadual3
Whatare hephysical tates f substances ,X, Y andZat 11e"C?Apakahkeadaan izikalbahanW,X, Y dan Z pada119C?
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
Sol idPepejal
GasGas
GasGas
Solid
Pepejal
LiquidCecair
GasGas
SolidPepejal
LiquidCe air
GasGas
GasGas
GasGas GasGas LiquidLiquid SolidPepejal
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SULIT 4541t1
43 Table4 shornche percentagey massof eachelementn a compound nd heirrelative tomicmasses.Jadual 4 menuniukkan eratusanmengikut isim bagi sefi.bpunsur dalamsafusebatian anuga isim atom elatifmasingrmasing.
ElementsUnsur c H o
Percentage %)Peratus(T) 26.70 2.20 71.10
Relativeatomic mssJisim atom relative 12 1 16
Table4Jadual 4
\Mrat is the empirical ormulaof the compound?Apakah formula empiik untuk sebatian ersebut?
A CHO
cH()2
cH20
CzHO
44 ElementZ forms an oxide with the chemicalformulaof 2203.\Attrichf the followingis rue about hisoxide?Unsur Z membentuk oksida dengan formula molekul ZzOs.Antara yang beikut,yang manakahhenar tentang oksida ni?
A The oxide of Z reactswithacid only.OksidaZ bertindak balas dengan asidsahaja.
B The oxideof Z reactswith alkalionly.Qksida Z beftindak balasdengan alkalisahaja.
Theoxideof Z reactswith bothacidand alkali.OksidaZ bertindak balasdengankedua-dua asiddan alkali.
The oxide of Z does not reactwith bothacidand alkali.OksidaZ tidak bertindaKbalasdengankedua-dua asiddan alkali.
B
c
D
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SULIT 4541t1
45 Atom X hasan electron rrangement f 2.4.AtomY hasprotonnumberof 17.Whatare he properties f the compoundormedbetween lementsX andY?Atom X mempunyai susunanelel<trom .4.Atom Y mempunyainomborproton 17.Apakah ciri-ciri sebatianyang terbentukantara unsur X dan unsur Y?
I l t hashighboi l ing oint .la mempunyaitakat lebur yang tinggi.
ll lt does notconductelectricity.la tidak boleh mengkonduksi elektrik.
lll lt does notexistas a solidat room emperature.la tidak wujud sebagaipepejal pada keadaan bilik.
lV l t s solublen organic olvent.
la larut dalampelarut organik.
A I and l onlyI danII sahaja
B ll l and V onlylll dan lV sahaja
C l, l l and l l onlyl, ll dan lll sahaja
D l l , l l and V onlyll, lll dan V sahaja
46 The electrolysis f copper (ll) sulphatesolutionwas carried out using copperelectrodes.Whatre he observation t anodeand he product t cathode?Eleldrolisis larutan kuprum (ll) suffat menggunakan elel<trod-elel<trod uprumdijalankan.Apakahemerhatiandi anod dan hasildikatod?
Observation t anodePe,msrhatian ianod
Productat cathodeHasitdikatod
Electrodebecornes hickerElel<trodmenjadi ebih tebal
CoppermetalLogam kuprum
Electrode ecomeshinnerElectrodemenjadi ebihnipis
CoppermetalLogam kuprum
Colourless as bubblesGelembung gas tidak berwarna
OxygengasGas oksigen
Colourlessasbubbles
Gelembung as idak berwarna
Hydrogen as
Gas hydrogen
A
c
D
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47 The equationbelowshoue the reactionbetrrr,eenagnesiumPersamaandi bawah menunjukkan indak batasdi antarahidroklorik.
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Mg + 2HCl -' MgCl2 + Hz
lf 0'48g of magnesiums used,calculatehe volumeof 0.5 moldm-3 ydrochloriccidneedso beaddedor completeeaction.[Relativetomic nss : H=1: Mg=24;Cl=35.5]Jik10.a8 g magnesium igunakan, itungkln isipaduasidhidroktonkO.S ol dm'3 angperluditambah ntuk indakbalas ang engkap.fJisinatom elatif.'H=1;Mg=24;Cl=35.5]
A 0.08cm3
B 0.8cms
C Scmo
D B0cm3
4541tI
and hydrochloricacid.magnesium dan asid
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SULIT 4541t1
48 Diagram16 shows he set up of the apparatusorthe actionof heat on zinc carbonate,Aftera few minutes imewater urnscloudy.Rajah16 menunjukkansusunan adas bagikasan habake atasbahan W.Se/epasbeberapaminft air kapur menjadikeruh.
tI
IHeat
Panaskan
Limewater
Diagram 6Rajah'16
The massof the boiling ube with he contentbeforeand afterthe heating s recordednTable5 below.Jisim tabung didih dengan kandungannya sebelumdan se/epas dipanaskandicatatkandalam Jadual5 di bawah.
BeforeheatingSebelum emanasan
31.25s
AfterheatingSe/eoasDemenasan
2O.259
Table5Jadual 5
Calculatehe volumeof the gas releasedn dm3at room emperature.[Rejativeatomicmass: c=12; o=16; Zn=65; Molarvolume at room temperature 24dm'mol'tlHitung isipadugas yang terbebasdatamdmspada suhubitik.[Jisimatom relatif:c=12 0=16; zn=65; lsipadumolarpada suhu bilik= 24 dmsmoIl]
A3
11
12
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SUUT
4(t Qiagrarn8shoruEour ronnailsn est ubes, , e, RandS.laigh 16 menuniukkanmpatpaku iletakkanioaam empatabungujiP,Q RdanS"
Hot ellysolution potassiumexao/anofenate(lll)olutionLarutan gar-agar anas larutanalfumheksdsilnofent(ilt)
lronnailwith eadPakubesidengan
Plumbum0
lronnailwithzincPakubesidengan ink
R
lronnaifwithmagnesiumPakubesidengan
magnesium
S
#{\ronnail
withsilverPakubesidengan
argentumP
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Diagram6Rajah 6
which est ubeshowshehighestntensityf bluecolourationfiera day?TaPu!1g.uiimanakah angmempunyaieamatanwamabii yang tiiggi setepassatuhari?
AP
BO
CR
DS
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SULIT 4541t1
50 Table 6 shovrrs data recordedwtren100 cm3of water rltras eatedusing methanol,CH3OH s a fuel.Jadual 6 menunjukkan data yang direkodkan apabita 100 cm3 air dipanaskandengan menggunakanmetanol, CH3OHsebagaibahan api.
Massof vrraterJEim air 10O
Changen temperaturef r,trater,Perubahanuhuair,0 200c
Mass f methanolburntJisimmetanolerbakar 0.32
Table 6Jadual 6
\Alhat s the heat of combustionof methanol n the reaction?
Apakah haba pembakaranmetanol di dalam tindak balastersebut?
[Specific eatcapacity f solution: .2 J g'1oC-1; olarmassof methanol,CHOH is32 g mol-l1
tHiba kapasffispesifik arutan: .2 J g'1"CI;Jisim molar metanol,CH3OHadalah32 g mofll
A 0.84 kJ nrcl-r
B 8.4 kJ mol-r
C 84 kJ mol'l
D 840 kJ mol'l
ENDOF QUES'IIQNPAPER
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Kelas:ama:. . . . . . . , . .
nt t l t \
t l t t l
, vr ta- l I
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PEPERIKSAANCHEMISTRYKertasSeptember
2%janDuaam igapuluhminit
454112
JABATAN ELAJARANEGERIOHOR
PERCUBMN PM2011
JANGAN UKAKERTASOALANNISEHINGGAIBERITAHU
1,
2.
3.
Tuliskanama an ingkatanadaruangangdisediakan.
Kerfasoalanniadalahalamdwibahasa.
Soa/analam ahasanggensmendahuluioalanang epadandalam afiasaMelayu.
Caondibe a {<ame jawbkeselruhan tausebahagiansoalana/na dadalam ahasalnggeis taubahasa elayu.
Calon ikehendakiembacamaklumatihalamanelakangkeftasaalanni.
4.
5.
Untuk egunaanemeriksa
BahagianSoalanMarkahPenuh
MarkahDiperoleh
A
1 10
2 10
3 10
4 10
5 10
6 10
B7 2A
I 20
c
I 2A
10 20
Jumlah
Kertasoalannimengandungi29alamanercetak
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SectionABahagianA
[50marks]160markahl
Ansvr,erll questionsn hissection.Jawabsemuasoalandalambahagianni.
1 (a) Diagram .1shows hemanufacturef ammonia.Rajah 1.1dibawahmenunjukkanembuatan mmonia.
-lI
_l
2
Mixture fNz ndHz200atm
Campuran
N2 dan H2200atm
The unreactedN2and H2N2 dan H2yang tidak bertindak balas
lroncatalyst450r
Mangkinbesi45eC2gasGas H2
Based n Diagram.1Berdasarkan ajah1.1
(D Name his ndustrial rocess.Namakanproses ndustrini.
Liquid mmoniaCecairammonia
Diagram.1Rajah1.1
[1 mark]
(iD State he namesof reactantsused.
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SULIT 3
Nyatakan nama unfuk bahan-bahan indak balasyang digunakan.
[1 mark]
(iiD Theammonia as ormeds condensedndseparated.Jhy?Gasammonia ang terhasildikondensasikanan diasingkan. enapa?
Write two main usesof ammonia.Tuliskandua kegunaan utama ammonia,
[1mark]
(iv)
(b) Diagram1.2 shows hreesourcesof traditionalmedicines.Rajah 1.2 menunjukkantiga sumber ubat tradisional.
oDiagram.2Rajah1.2
Match he hreesour@sof raditionalmedicine ith heirusesby usinga lineP ad anka n ketiga-tiga contoh-conto h sumber denga n keguna an ny a.
[2 marks]
[1mark]
[Lihat sebelah
P
(c ) The ollowing howsourexamplesf modernmedicines.
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Curesore hroat
Treat kinwoundsMerawatuka kulit
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SULIT 4
Di bawahmenunjukkan mpatcontohubatmoden.
Haloperidol n BarbituratesHaloperidol - Barbiturat
Paracetamoll--lParacetamol
Streptonrycint_]Strefromysin
Tick {) in the boxprovided bove o indicate nalgesicshat elieve ain.Tanda l) di dalam kotakdi atasuntukubat analgesikangmengurangkankesakitan.
[1 mark]
Name nother xample f analgesicshat s used n headacheablets nd ncoughmedicines.What s the sideeffectof thismedicine?
Namakan ontoh ain analgesikangdigunakan alamubat sakitkepala anubat batuk Apakahkesan ampingan ontohubat ni?
[2 marks]
(iiD An attention eficit yperactivityisorder hildmay akedextro-amphetamine,psychotheraeuticmedicine. tate ts unctio .
Seorang anak-kanak iperal<tif an bermasalahurang umpuanbolehdiberiubat dert oamfetam n,satu contoh ubat psikoterputik . Nyaakan fungsi ya.
0
(iD
-
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SULIT
2
5
Diagram showspartof the Periodic ableof Etenrents.V, \N,X,Y,Z andU do notrepresenthe actual ymbols f the elements.
Rajah2 menunjul<kanebahagianaipadaJadualBerkala.V, W, X, Y, Z danU tidakmewakilisimbolsebenar nsur berkenaan.
1 18
Diagram2Rajah2
Usinghe etters ndiagram ,answerhe ollowing uestions:Denganmenggunakanuruf-huruf alam ajah2, awabsoa/an-soalan erikut:
(a)(D Vvhich lements a halogen?Unsuryangmanakahadalahhalogen?
tMich elements transition lernent?Unsuryangmanakah ogamperalihan?
[1rarkl
(iD
[1rmrkl
(iiD \Mich elements monoatomic?Unsuryang manakahmonoatom?
[1 markl
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SULIT
(b) (D Write he electron rrangementor anatomof element .Tuliskansusunaneleldronbagi atomunsurX.
[1 mark]
(iD writethe ormula f the on ormedroman atomof erenrent .Tuliskanormulabagi onyangterbentukdaripadasatuunsurX.
[1 mark]
(c) (D \Mryareelements , Y andZ placedn hesameperiod?MengapakahunsurX, Y danZ terletakdalamkalayang sama?
[1 mark]
(ii) furangeelernents , Y andZ accordingo the decreasen he sizeof atoms.SusununsurX, YdanZ mengikutpengurangansaizatom.
[1 markl
(d) (D Write he balancedhemical quationor he reaction etureen lement andoxygen as.
Tuliskan ercamaanimia seimbang agitindak alas i antaransurXdan gasoksigen.
[2 marks]
(ii) Elernent dissolvesnwatertoproduoe solution.Completeheequationor he reac.tion.
Zz + HzO '-+ .. . . . . . . . . . . . . . . . . . . .
[1 mark]
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SULIT 7
Diagram shovrrshe apparatus et up o determinehe melting ointof substance . Inthisexperiment,olidX is heated ntil t changeso molten tate.
Rajah3 menunjukkan usunan adasuntukmenentukanakat eburbahanX. Dalamekspermenni,pepejalX dipanaskan ehinggaa berubah epadacecair.
mipanaskan
ThermometerTermometer
BoilingubeTabungdidihater
AirSubstance
BahanX
DiagramRajah
Based n diagram , ansu,erhe ollowinguestions.Berdasarkanajah3, awab soalan-soalanerikut.
(a) What s thenameof theprocesswhensolidchangeso molten tate?Apakah prosesapabilapepejalberubahmenjadieburan?
t- -
[1 mark]
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(b) SolidX hasa nrelting ointof 90oC.f a test ubeof moltenX at 150oCsallora,edocoolat room emperature,
PepeialXmempunyaitakateburg}o2. SekiranyaabungujiyangmengandungileburanX padasuhu 150oC isejukkanpadasuhubilik,
0 Sketch graphof temperaturegainstime or hecooling f moltenX.Lakarkangrafsuhumelawanmasaunfukpenyejukaneburanx.
[2 marks]
(iD How o avoidsupercoolingrocess?
Bagaimanauntukmengelakkan rosespenyejukanampau?
[1 mark]
(iiD Drawa labelled pparatuset-upor hecooling rocess f substance .Lukissusunanadasberlabel nfukproses enyejukan agi bahanX.
[2 marks]
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SULIT
Particlesonsist f atom,moleculeZarah-zaraherdiridaripad atom,neutral?
I
or ons. A/hys an atomneutral?molekulatau on. Mengapakah tom adalah
(c)
(d)
[1 mark]
A bromine tomhas35 protons nd45 neutrons.Write he standardepresentationof bromine tom.Satuatombrominmempunyai3S rotondan 45neutron.Tuliskan erwakilan iawaiuntukatombromin.
[1mark]
(e) (D Whatare sotopes?Apakah sotop?
[1mark]
(iD Phosphorus-31ndphosphorus-32re sotopes f phosphorus.tate neuseof phosphorus-32.
Fosforus-3 dan fosforus-32datah sotopuntuk osforus.Nyatakan atukegunaanosforus32.
[1 mark]
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SULIT
4 The hermochemicalquationepresenthedisplacementeaction f copperromcopper(ll)sulphateolution y zinc.
Persamaanermokimia erikutmewakilitindakbalaspenyesdranuprumdartpadaarutanRuprum(ll)sulfatolehzink
Zn (s) + Cusoa(aq) + ZnSoa aq) + cu (s) AH= 190kJ/molr
(a) State he meaningof heatof displacement.Nyatakanmaksud haba penyesaran.
.1markl
ls t an exothermiceaction r endothermiceaction?Adakah a tindakbalaseksotermiktauendotermik?
[1 mark]
(c) State wo observationsn thisexperirnent.Nyatakan uapemerhatian alam indakbalasni.
10
(b)
(d) Drawan energyevel iagramor his eaction.Lukisgambarajaharas enagabagitindakbalasni.
[2 marks]
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SULIT 11
(e) In heexperiment,xcess incpovrder asreactedwith25 cmsof 0.2rnoldm'3copper(l) sulphateolution.Dalam.eksperimentu, serbuk inkbertebihan itindakbalaskan engan23 cm3larutankuprum(ll)sulfat0.2mol dm'?.
Calculatehe heatenergyeleasedn hisexperiment.Hitungkanenagahabayang dibebaskanidalam eksperimenni.
[Specificea tcapacity f solution:4.2J -tog't'Density f solution: g crn3]lMuatanhaba entu arutan:4.2J g't oc-,;Kefumpatanlarutan: g cm'-1
[2 marks]
(b) In another eaction,incwasreplaced ithmagnesiumo reactwithcopper(ll)sulphate olution.Predicfhe valueof heatof displacernent,H andexplainwhy.
Dalam satu indak balasain,zink telahdigantikandenganmagnesiumuntuk beftindakbalasdenganarutankuprum(ll) ulfat.Ramalkan ilaihaba penyesaran,H dan erangkanmengapa.
[2 marks]
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Diagram .1 shovvs flowchart or hequalitative nalysis f substance .Rajah5.1 menunjukkanartaalir analisis ualitatffbagisebatian .
12
ProcessProses /
Add hydrochloric cid,HCIsolutionTambah larutan asidhidroklorik, HCI
ProcessIIProses II
Solution + Sodium ydroxide,NaOH olution
LarutanY + larutannatriumhidroksida, aOH
Process lProses l
Solution +Silvernitrate, gN()3 olution
LarutanY +Larutanargentum itrat,AgNOs
Diagram.1Rajah .1
(a) Based n Diagram .1,BerdasarkanRajah5.1,
(i) Name he blackpovrderX.Namakan serbukhitam X.
BlackpowderXSerbuk itamX
Blue olutionLarutanbiru Y
\MriteprecipitateMendakanutih
[1 mark](ii) Name heprocess.
Namakanroses .
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SULIT 13
Writea balancEdhemicalequationor he reaction.Tuliskanpersamaanimiayang seimbang agitindakbarasyangberlaku.
t2 marksl
\Nhy sthe blackpovrder addedn excessn thereaction?Mengapaserbuk itamX ditambah ecaraberlebihan alam indakbalasni?
[1mark]
(iiD
(iv)
(b) Based n processl,Berdasarkanepadaprosesl,
0 Name heprocess.Namakanproses/a.
[1 markl
(iD Write he onicequationor he reaction.Tuliskanpersdmaanonikbagitindakbalastu.
[1 mark]
Howto obtain hewtriteprecipilaten he processl?Bagaimanamendapatkanmendakanputihdalam prosesni?
[1 markl
(c) Based n theprocess andprocessll, state hecationandanionpresentn solutionY.BerdasarkanrosesI danproses ll, nyatakan ationdananionyanghadirdi datamlarutanY.
CationKation
[2 marks]
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(iiD
AnionAnion
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Diagram .1 showsan experimento investigate factor hat nfluenceshe rateof reaction.Theexperiments repeatedive inresat differentemperatures.
Raiah 6.1 menuniukkan uatuekspeimenunfukmengkajisatufaktoryangmempengaruhikadar indakbalas.Eksperimenni diulangi ebanyakimakalipadasuhuyangberlainan.
14
:_
50 cm3of sodium hiosulphateolution0.2 mol dm'3+ 5 cm3of sulphuric cid1moldrn3.
50 cm3 arutannatrium ti\sutfat 0.2 moldm's+ 5 cm3 asidsulfurik 1 mol dma.
Diagram.1Rajah6.1
Table6 shovr,she emperaturend ime aken or "X' rmrkto disappearromviewwhenobservederticallyrom he op.Jadual6 menuniukkan uhudan masa ang diambitunfuk anda X' hilangdaripandanganbiladiperhatikan ari atas.
ExperimentERsperimen
TemperatureoC
SuhuoCTinre sMasa s
1 30.0 55.52 40.0 33.03 50.0 23.O4 60.0 17.A
5 70.0 13.0
Table6Jadual6
(a) Stateoneobservationrom hisexperiment.Nyatakansatupemerhatian aripadaeksperimenni.
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SULIT
(b)
15
Completehechemical quationor he reactionhatoccurred.Lengka kan peraamaan kimia untuk indak baasyang berlaku.
Na2S2O3 HrSO4 +
(c) compare he rateof reaction etueenExperiment and Experiment.Banding adar indakbalasantaraEkspeimen danExperimen .
[1 markl
[1 mark]
(d )Explain
ouranswern
(c)usingheCollisionheory.Jelaskanawapdnandapada(c) denganmenggunakan eoriperlanggaran.
[4 marks]
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(e) Byusing hedata n able6, draw hegraph f emperaturegainstime or hisexperimentn thegraphprovided elow.
Denganmenggundkan ata dalamadual6, lukiskangrafsuhumelawanmasabagieksperimenni di dalamkerfasgrafyang disertakan i bawah.
[1 mark]
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SULIT 17
(0 Diagram6.2 shov'lsa @nversationbetweenUmmuand Qistina-
Rajah6.2 menuniukkanperbualan diantara Ummu dan Qistfna.
Diagram.2Raiah6.2
Threestudents boveare nvestigatingheeffectof differentemperatureso prepare
hardboiled ggs.Based n heconversationbove, tate he relationshipetween
temperaturend ime aken o prepare ardboiled gg.
Tigapelajar i atassedangmeng4ajikesanuhuyangberlainanReatasteluryang
direbus.Berdasarkan erbualan iatas,nyatakan erkaitan rfarasuhu denganmasayang diambiluntukmenyediakanelur rebus.
[2 marks]
[Lihat sebelah
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When I placeda smallsizedegg in boiling aater t 100oC,it becomehard boiledwithin12 minutes.
Apabila sayameletakkan sebiiitelur bersaizkecilke dalam air
mendidihpada 10fC, iamenjadi kerasdalam temPoh
12 minit.
ButUmmu, hen placedsarrpsizedegg n hotwaterat 70oC,ttookmea muchlongerime hanyours.
TapiUmmu,apabilasayameletakkaneluryangsarnasaiz e dalamair panaspada70"C,a mengambil,??asaebih amadaripadaawak
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18
SectionB
BahagianB
l2Omarksl
Ansr,rierny one questionrom hissection.Jawabmana-manaatu soalan aripada ahagianni.
(a) A studentwants o carryout anexperirnento electroplaten ironkeywithsilver.
Seorang elajar nginmenjalankan atu eksperimenntukmenyadursatu kuncibesidengan argentum.
(i) State he anode, athode nd electrolytehatmustbe used o carryout heexperiment.
Nyatakananad,katoddan elel<trolitang mestidigunakanuntuk menjalankaneksperimenersebut.
[3marks]
(ii) Write he half-equationsor he reaction t theanodeand he cathode.
Tuliskansetengah ersamaan agitindakbalasdi anoddan katod.
[2marks]
Suggestwo vralB o obtain smooth ndbeautiful oating f the ronkeywithsilver.Cadangkan dua cara untukmemperoleh enyaduranargenfumyangratadancantik adakuncibesi.
[2marks]
(iiD
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(b)
19
Diagram showsapparatuset-upused o investigatehe reaction f metal
displacementrom ts saltsolution y somemetals nd he observationsbtained
from heexperimentn 1 minute.
Rajah7 menunjukkan usunan adas angdiguna4an ntukmengkaiitinda? elas
penyesaranogamdaripadaarutangaramnya leh beberapaenis ogam ertentu'dai
pemerhatianangdiperotehdaripadaeksperimenalam empah1 minit.
DiagramRajah
Chemicalformula or
productaqueous
solution
Apparatusandobservationafter I minuteAlat radasdan panerhatin selepas minit
Pz(SOa)g
25 cmsof0.1mol
Brown oliddepositedPepejalperangterenap
MetalPLogamP
sulphateolution
25 cms arutankuprum(ll)sulfat
0.1moldm'"
25 cm3of 0.1 nroldrn3of coppe(ll)
Brown olid
sulphateolution
25 cms arutankuprum(ll)sulfa!
0-1moldm''
25cm3 f 0.1mol
dm3of Q sulphatesolution
25 cms arutanQsulfatA.1moldma
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2A11Hakciptaabatan elajaran egeri ohor
20
(i) Based n he nfornutionivenn Diagram , comparehe differencesbetween:
Berdasarkan aklumat angdiberikan alam Rajah7, bandingkan erbezaandi antara:
. Experimentand l,Eksperimen dan Il,
r Experimentand ll.Eksperimen dan ll.
Explainouranswern erms f:Terangkanaunpan ndadarisegi:
r Positionn heelecfrochemicalseries.Keduduka da am siri eleldrokimia.
o Observationn allthree xperiments.Pemerhatian da am ketiga-tigae kspeimen.
[8 marks]
(iD ldentifymetalP andQ.Kenalpasti ogamP danQ.
[2 marks]
(iiD ln experimentl, 25 cm3 f0.1moldm-3 opper(ll)ulphateolutioneactcompletely ith metalQ.Calculatehe mass f copper roduced.
Dalam eksperimen!, 25 cms arutan uprum(tt) ulfat0.1mol dm-3 ertindakbalas engkapdengan ogamQ.Krakan isim kuprumyang terbentuk.
[Relativetomic rnss:Cu= 64]
lJisimatom elatif:Cu = 641
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21
(a) A covered as ar contains .5molof ammonia as,NH3.Satubalanggasbertutupmengandungil.Smolgas ammonia,NH3.
Howmanyammoniamoleculesre here n hegas ar?Berapakah ilanganmolekulammonia i dalambalanggas ercebut?
[2 marks]
(b) Urea,CO(NH2)2,rrltTloniumitrate,NH+NOsnd hydrazine, 2Ha re ertilizershatare used in agriculture.Mich fertilizerhas the highestpercentagemass ofnitrogen?
Urea, CO(NH)z,ammoniumnitrat, NHNO1and hydrazin,Nzlta dalah bajayangdigunakan dalam pertanian.Baja yang manakah mengandungi peratus isimnitrogen eftinggi?
[4 marks]
(c) Diagram .1shorneheelectron rrangementf molecules andB.Rajah8.'l menunjukkan usunan leldron agimolekulAdan B.
Diagram .1Rajah8.1
Elasedn diagram .1:Berdasarkanajah8.1;
State he ypeof covalent ond n each rclecule ndexplainwhy.Nyatakanenis katan ovalendalamsetiapmolekuldan erangkanmengapa.
[4 marks]
A
O e O
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SULIT 22
(d) Diagram .2shorarshe ormula f trapdifferentompounds.Rajah8.2menunjukkanormulabagidua sebatian erbeza.
KzO SOeDiagram .2Rajah8.2
Based n Diagram .2:Berdasarkanajah8.2:
(i) Compare ndcontrasthe wo compoundsn ermsof physical tates t roomtemperature,neltingoint, lectricalconductivityndsolubilitynwater.Bandingdanbezakedua-duasebatian ari segi keadaanizikalpada suhubilik, akat ebur,kekonduksianlektrikdankelarutan alamair.
(iD Explainhe differencesf he melting oint or he vr,rcompounds.Terangkan erbezaanakateburbagikedua-duasebatian.
, [10marks]
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SULIT 23
Section CBahagian C
BOmarksl
Ansvr,ernyonequestionromhis ection.Jawabmana-manasatu soalandaripadabahagian ni.
I (a) Diagram .1shows structuralformulaf butene,Rajah9.1menunjukkanormulastrukturbagibutena.
H H HHl l r l
H-C-C-C:C-Ht lHH
Diagram.1Rajah9.1
Drawanotherwo structuralormulae f butene ndwrite heir espective ames
accordingo the UPAC omenclature.
Lukisdua ormulastrul<turainbagi butenadan uliskan ama masing:masingberdasarkanenamaanUPAC.
[4 marks]
(b) Diagram .2shows hestructuralormula f anester.Rajah9.2 menunjukkanormulastrukfurbagisuatuesfer.
HHOHH
t t i l t lH-C-C-C-O-C-C-H
r t t lHHHH
Diagram .2Rajah 9.2
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SULIT 24
Based n diagram .2 :Berdasarkanajah9.2:
(D ldentifyhe vrrc rganic hemicals eededo produceheesterabove.Kenalpastidua bahankimiaorganikyangdiperlukanunfukmenghasitkanesterdiafas.
[2 marks]
(iD State wochemical ropertiesor eachorganic hemicatshatyoustatedne(bxD.Nyatakan ua sifatkimiabagisefiapbahankimiaorganik ang andanyatakandatam9(b)(il.
[4 rmrksl
(c) Youaregivenan apparatusndchemicals s follow:Andadiberikanalatradasdanbahan-bahanimiasepefti erikut
Apparatus:est ube,dropper.Radas; abunguji, penitis
chemicas: Brominen trichlooethae,acidifedpotassiummanganate(vl)solution
Bahankimia:bromindalam rikloroetana,arutankaliummanganat(Vtl)berasid
Describewo chemicalestsusing he apparatusndchemicals ivenaboveodifferentiateetween exane ndhexene.Yourdescription ust ncludehe procedure ndobservation.Huraikandua uiiankimia menggunakanalatradasdanbahankimiayang diberikandiatasuntukmembezakan ntaraheksana an heksena.Dalamhuraianandamesiti iseftakanrosedurdanpemerhatian.
[10marks]
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10 (a)
25
Diagram 0.1shows he apparatuset-upor a voltaic etl.Rajah 10.1menunjukkan usunan adasuntuksafase/ voltan.
MetalALogamA
Copperkuprum
Aqueous olutionCuY2LarutanakueusCuYz
Aqueous olution YzLarutan akueusAYz
454112@2O1 Hakcipta abatanPetajaran egeri ohorSULIT
Diagram0.1Rajah10.1
MetalA s rnoreelectropositivehancopper.Suggest nepossible ation or X2* on.LogamA lebih eleffiropositif aripadakuprum.Cadangkansatukation angmungkinbagiion **.
Basedon the elec{rodeactorwhichaffeitsthe selec{ive ischarge f ions at theelectrode,Berdasarkanal<tor lel<tod angma,nakah empengaruhiemilihanonyangdinyahcaspadaeleldrod,
(D Write he halFequationor the reactionat the electrode f metalA.Tuliskansetengahpersamaan agi indakbalasdi elel<todogamA.
[3 marks](iD State he$pe,ofreaction t the anode.
Nyatakanenis indak balasdi anod.
[1markl
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(b)
26
Table10.1 hotnrshe result f chemicaltestssed o changehesolution and
Solution .Jadual 10.1menunjukkan eputusan jiankimiauntukmenukarkan arutanX danlarutan Y.
ExperimentEksoerimen
ProcedureProsedur
ObservationPemerhatian
Bromine raters added ntoXsolution ndwarmed. odiumhydroxide olutionsadded ntomixture ntilexcess.
Air bromin ditambahkan e dalamlarutanX dandihangatkan.Laruta natrium h d oksidditambahkanRedalamcampuransehinggaberlebihan.
Green precipitate
formed
Mendakanhijaubrberrtuk
Zincpourders added ntosolutionY and hemixturesshaken.Sodiumhydroxideolutions then
added nto he mixture ntilexcess.
SerbuKzink itambah e dalamlarutan Y dan digoneangkansi,ehngga tiada perubshd tr.Laruta natriumhidroksidd tambahkan sehingga berlebi anke dalam campuran.
Brown recipitateformed
Mendakanperangterbentuk
Table 0.1Jadual10.1
Based n Table 0.1:o ldentifyhesolution andsolution .o State he reducing gentn experimentandoxidising gent n experimen
ll andgiveone reasonor eachofyourchoices ased n he changes foxidationumber.
Berdasarkanadual I 0. :o Kenalpasti larutanX dan arutanY.
o Nyatakanbahanyangbertindaksebagai genpenurunandalameksperimen danagenpengoksidaan alam eksperimenl serta beri satusebabuntuksetiappilihanandaberdasarkanerubarhanomborpengoksidaan.
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(c)
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27
Chlorinesgoodoxidizing gent.
Korin adalah gen pengoksidaanangbaik.
You aregiven he ollowing pparatus:Anda dibeikan alat-alat adasberikut:
U-tube, alvanometer,onnecting ires,stopper, ropper, arbon lectrodes ndretort tandwithclamps.TiubU, galvanometer,wayarpenyambung, enyumbat, penitis,elektrod-eleldrodkarbondan Raki etot danpengapit.
Suggest suitable hemicaland escribe n experimento verify heabovestatement sing hegivenapparatus.Cadangkanbahan kimiayangsesual dan huraikan satu ekspertmen ntukmengesahkanernyataan i atasdenganmenggunakan lat radas angdiberi.
[10marks]
ENDOFQUESTTONAPERKERTASSOATA/\'TAMAT
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SULIT 28
4il112 O 2011Hakciptaabatan elajaranNegeri ohorSULIT
(n
FzrrlEHF1r4rq
t-{fr{orrlFlg
f,gaog,rrlO"
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SUT,IT
Nama:
PEPERIKSAANERCUBAANPM2011CHEMISTRYKertasSeptember
1%jax
JABATANPELAJARAN EGERIOHOR
Tingkatan
454t3
Satu am igapuluhminit
JANGAN UKAKERTAS OALAN NI SI|IilI'{GGADIBERI.TATIU
1. Tuliskanamadan ingkatanadaruang angdisediakan.
2. Keftas oalanni adalahalamdwtbahasa.
3. Soa/analamBahasanggertsmendahuluioalan angsepadandalamBahasaMelayu.
4. Calon ibenarkan enjawabkeselruhan fausebahagianoalansamaadadalamBahasanggeris tauBahasaMelayu.
5. Calon ikehendaki embacamaklumatihalamanelakana ertassoalanni.
UntukKeg naanPemeri sa
Soalan MarkahPenuh
MarkahDiperoleh
1 18
a 15
3 17
JUMLAH
Kertasoalannimengandungi3 halamanercetakan halamanidak ercetak.
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1 Table 1 shows he observationsn three est tubes used o investigatehe effectofother metalson rusting.A mixtureof jelly solution,potassiumhexacyanoferrate(ll l),K3Fe(CN)6olutionand phenolphthaleinereusedas medium n each est tube.Theobservationsuere ecorded fteroneweek.
Jadual I menunjukkanpemerhatiandalam tiga buah tabung ujiyang digunakanuntukmenyiasat kesan logam lain ke atas pengaratan. Medium yang digunakan di dalamsetiap tabung uji adalah campuran larutan agar-agar, larutan katiumheksasianoferat(lll), KsFe(CN)6dan fenalftalein. Pemerhatian direkod se/epas safuminggu.
Test ubeTabunquii
ObservationPemerhatian
1 week1 minggu
--F\__
lronnailcoiledwith copper tripPaku besidililitdengan
kepingan kuprum
tl
1 weekI minggu
l ronnai lcoi led i thzincstr ipPaku besi dililitdengan
kepingan zink
il l
1 week
I minggu
-
lronnai lPakubesi
Table 1Jadual I
ReferenceiPetunjuk: E*l Bluespot tompokbirur.TFf Pinkspot I tompokmerah ambu
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SULIT
(a) Stateone nferenceoreach est ubes ,.l land 1l.
Nyatakansatu inferensuntuksetiaptabunguiil, tl dan ll.
Tesl ube :Tabungujil:
II
II
E^F
ExaminefsUse
1(a)
tE
1 b)
m
Test ube l:TabungujiIt:
Test ube ll:Tabunguji IIt:
(b) For hisexperiment,tate:Bagi eksperimenni, nYatakan:
(i) Thenunipulatedariable."Pemboehu ahd maniPYI si.
(iD Therespondingariable.
Pemboleh bah bergera b a as.
(iiD The constant ariable.Pembolehubahdima arkan.
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ForExaminer's
Use
1(c)
m
SULIT 4
(c) State hehypothesisor heexperiment.Nyatakan ipofesls agi eksperimenersebut.
(d) State he operational efinitionor the rustingof ironnail.Nyatakandefrnisisecara operasibagipengaratanpaku besi.
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SULIT
Diagram1 shows heapparatuset-up f an experiment.Rajah1 menunjukkansusunan adasbagi satuekspeimen.
Diagram1Rajah I
Predict n observationor the experiment ftera ueek.Ramalkansatupemerhatiandaripadaeksperimentu selepassatuminggu.
(e)
[Lihat hnlartran sebelah
SULIT
Jellysolution Larutanagar-agar+
potassium exacyaofenate(ll),K3FeCN)6solutionIa utan ka um he ksa ianoferat( , KsF (CN)a
PhenotphthaJin fenotftatein
lronnailcoiled ith eadstripPakubesidililit dengankepingan
plumbum
4*1113 O 201I HakCiptaJabatanelajaranNegeri ohor
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Examiner'sUse
1(e)
[ETotal
1l1I | ._ |
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Fd
Examiner'sUse
2(a)
[E
SULIT
Diagram shovraheapparatusetup oranexperimentodetermineheendpoint ftitrationnneutralisationeaction.
Rajah menunjukkanusunanadas atuekspeimenagimenenfukanakat khirpentitratanalamindak alas eneutralan.
BuretteBuret
HydrochloriccidAsidhidroklorik
Conicallask kelalangon
50cm3 f1.0 nol m-3 odiumydroxidesolutionphenolphthalein50 cm3arutan atium hidroksida.0moldm-3+ fenolftalein
Diagram
Rajah2Statewo observationshat ou ould btain uringheexperiment.Nyatakan uapemerhatianangboleh ndadapatisemasaksperimen.
,l
(a)
2.
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-I
SULIT
The experiments repeatedhree imesand he volumeof hydrochloriccid used oreach set s shown n Table2.Eksperimen tu diulang iga kali dan isipaduasidhidroklorik ang digunakanbagi setiap
set ditunjukkanpada Jadual 2.
Table 2Jadual 2
(b) Record he burette eadingsnthe spacesprovidedn Table 2.Catatkanbacaanburetpadaruangyang disediakandalam Rajah2.
ForExaminer's
Use
[Lihat hnhman sebelah
SULIT
SetSef
Initial eadingBacaanawal
FinalreadingBacaanakhir
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 CiptaJabatan elajaranNegeriJohor
8
Constructa table o record hsdata fromsets l, ll and lll. The ableshould ncludethe initial eadlng, inalreadingand the volumeof hydr,ochloricsed n thetitration.Bina satuadual untuk merekoddata bagisetl, ll dan ll itu. Jadual tersebuthendaklahmgngandungibacaan awat,Sacaanakhirdan iipiii.asia
hidroktorikyang digunakan dalam titratan.
(d) The chemicalequation or the reaction s shownbelow:Persamaankimia tindak balasditunjukkandi bawai:"'
HC I + NaOH -, NaCl + HzO
calculate he average,vorumef hydrochroriccid,HCrneeded o neutrarise50 cm3of 1.0mol dm-3sodium ryciroxiOe,aOH ofuiion.
--
Htungkan isipa6.rl q!?tagag a i d h d okrorik, cvii
g'ipe
rukanuntumeneutrarkan.s0m" arutanatrium idroksida.omitd;-i, N;oH.'--'
(c)
4
14
W1I/
t4/-
t/v/rl
rht
r-rIrylft
N''1
la
SULIT
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SULIT
(e) Duringhe titration rocess, tate he relationship etweenhe concentrationhydroxideon,OH- nsodium ydroxide, aOH olution ith imeuntiltheendpoint f itration.
Semasaprosespentitratan,nyatakanhubunganantarakepekatan on Ol-f dalamlarutansodiumhidroksida,NaOHdengan masasehingga akatakhirpentitratan.
(f) Classifyhe ollowing cids ntomonoprotic,iprotic nd riprotic cid.Kelaskanasid-asid erikutkepada asidmonoprotik, iprotikdan triprotik.
Hydrochloriccid Sulphuric cidAsidhidroklorik Asid sulfurik
Ethanoic cid Nitric cidAsid etanoik Asidnitrik
PhosphoriccidAsid fosforik
MonoproticcidAsidmonoprotik
Diprotic cidAsiddipratik
Triprotic cidAsid triprotik
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rorExaminer's
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2(e)
m
2(f)
r-;I l3 l
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SULIT 10
Diagram shorusome amplesfbattery. atterys a voltaic ell hatcanbe builtusing ny rruoifferent etals ndsuitable lectrolyte.Raiah2 menuniukkaneberapa ontohbateri.Bateriialah e1'enr.setkimia angboleh ibinamengguna&anebarang ua ogamberlainanan elektroftangsesuai.
DiagramRajah2
Voltmetereading fvoltaic elldependsn hepairof metals sedas electrodes.Bacaan oftmeterelRimiaergantungepadaasanganogam angdigunakansebagai leltrod.
Plan laboratoryxperimento nvestigatehatdifferentairs fmetal roducedifferentoltage f a voltaic ell.Yourplanninghouldncludehe ollowingspects:Rancang afuekspermen ntukmenyiasatahawa asanganogamyang berbezamenghasilkanvoftan se/ kimia yang herbeza. Perancangananda hendaklahmengandungiaspeft-aspk be ikut
(a) ProblemtatementPernyataanmasalah
(b) Al l the ariablesSemua embolehubah
(c) Hypothesis
Hrpofesrb(d) Listof materialndapparatus
Senarai ahandanalat adas
(e) ProcedureProsedur
(t) TabulationfdataPenjadualanata
117marksl
[17markahlEHDOFQUESTIOi lAPERKERIAS SOALA,\,TAMAT
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JABATANPELAJARANNEGERI OHOR
PEPERIKSAANERCUBAAN ETARANEGERI OHOR 011
SKEMAPEMARKAHAN
CHEMISTRY
PAPER1
PAPER2
PAPER3
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JULANG OHOR 011CHEMISTRY
PAPERTANSWER
QUESTION ANSWER1 A2 C3 A4 B5 B6 B7 A
8 DI A10 D11 D12 A13 c14 D15 c16 D'17 c18 D
19 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 B
4 c45 D46 B47 D48 B49 A50 D
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No. Markscheme 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) Theyhavesamenumber f shellsnbOloccupieOitnelectrons
1
2ii ) x,Y,z i l x>Y>z 1
(d) (i)
4X+O,2X + T"Q,
-* 2XzO ll+ XeO
Conect eactants ndproducts 1Conectlybalance 1
1+1
3
(ii)Zz + HrO ---+ HZ + HOZ 1
TotalMark
10
No. Markscheme Submark
Totalmark
(a) Melting 1 1
(bxi)
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Correct xiswithunitsCorrect raphand90oCsstated
4I
1
5
3(bxii) Themolten is stirred ontinuouslyhroughoutheexperiment
1
(i i)Thermometer
Boilingube
MoltenX
Conicalflask
LabelleddiagramConect and func{ionalapparatus
1i1l
3(c) Because n atomconsists f an equalnumber felectronsandprotons.
1 1
3(d) 80
Br35
1 1
3(eXD Atomsof the same elementwith the samenumberofprotons / proton number but different number ofneutronV ucleon umber
12
3(eXii) Use n phosphateertilizers/ to study he metabolismfphosphorusnplants
I
Total mark 10
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(a) (i)
(iD
(iii)
(iv)
(b)
SectionA
Haber
Nitrogenand Hydrogen
To get a betteryield
1. To make ertilisers2. To producenitricacid
ParacetamorlI
Codeine 3-methytmorphine
Addiction depressionnausea vomiting itchingdrowsiness drymouth / orthostatic ypotensionurinary etention miosis constipation
Activateevelof alertness/Reduce ormalatiguelElevatemood/Stimulatectivity f brain centralnervousystem.
1
1
1
1
1
1
(c) (i)
(ii)
1+1
Total
mark
(iiD
Curesore hroatMerawat akittekakTreatskin woundsMerawatukakulit
10
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MarkScheme
Heat eleased hen1 mole f metals displacedrom tssaltsolution y a moreelectropositiveetai.
a: heat hange
exothermic
1. Brorrvnoliddeposted.2. Thecolour fsolution hangeromblue o ightblue
colourless.3. Container ecomes ot4. Massof zincdecreased5. Sizeof zincbecomeshinner
[Any wo]
Energy
o Conect woenergy evelsandaxis abeled nergy.. Conect eactants,roducts ndvalueof AH.
No.of mofeCUSO+=0.2\(25]'/ 0.005mol1000
Heatenergy eleased 0.005motx 190kJ mol'1il= 0.95 J 950J
Valueof AHmore higherhan 190kJ.
Magnesiums moreelectropositiveompare inc nelectrochemicaleries lDistance etweenmagnesiumndcoppers urtherthan he distanceetweenincandcoppernelectrochemicaleries.
Sub TotalMark , Mark
:
44t ' t :
ai
1.
2.
AH = -190kJ mofl
ZnSOa+ Cu
Totalmark
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No. Mark Scheme SubMark
TotalMark
5 (aXi) Copper(ll) xide 1 1
(ii) Neutralisation 1 1
(iiD Conect eactants ndproductsBalance he equation
2HCl+CuO)CuCl2 + HzO
4t
12
(iv) To completehe reaction 1 1
5(bXD DoubleDecomposition 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)
Yellowprecipitate
NazSzOgHzSO+-+ azSOe+ + HzO+ SO,
1. Rateof reactionor Eiberiment is hiqher hanExperiment(orviceversa).
1. Temperaturen Experiment is higher.2. Thekinetic nergy f heparticless higher.3. The requency f collisions etween * onsandSzOr -
ions ncreases4, The requency f effective ollisionsncreases.
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 lviceversa
Section B
No, Mark Scheme Submark
TotalMark
7(a) (r) Anode:Silver rod/foil)
Cathde: lron keyElectolyte:Silvs nihatesolution
1
I1 3
(iD Anode : Ag +Ag' +s
Cathode: Ag'+e*Ag11 2
(iiD 1. Usea smallelectricalcurrent2. Use owconcentrationf thesilvernitrate olution.3.Turn he iron key slowlyduringexperiment.4. Clean he ronkeywithsandpaper efore arrying utexperiment.
Any two
2 2
7(b) 0 Experiment and l
1+1
I
1. Rateof reactionnexperimentis higherllThe eactionnexperiment is faster
2. MetalP is moreelectropositivecompared ithmetalQ in heelec'trochemicaleries
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I 3. Deposit f brownI metals morenI
I exp€r;menli comparedwith
i experimentl
Experimentand ll
A
-.Distancebetweenmetals andCu s
further hanmetalQandCu n heelectrochemicaleries
(ii) MetalP :Aluminium, lMetalQ:ZnlFe/Sn
r: Pb
MolofCuSO+olution t0.1\ €SI ll 0.0025mol1000
Ratio 1 molofCuSO+roducedmolCu0.0025molof CUSO4roduced.0025molCu
Massof copper= 0.0025molx 64= 0.16
(iiD
Comoarison Exolanation5. There sa reactionn
experimentand noreactionnexperimentll
6. MetalP is moreelectropositivecompared ithcoppermetal ntheelectrochemicaleries
7. There sbrowndepositnexperimentI andnodepositnexperimentll
8. MetalP splacedhigherhancoppernthe electrochemicalseries / Coppermetalis placedbelowmetalR intheelectrochemicaleriesIl metalP is moreelectropositivehanCu
1+1
1+1
1+1
1
1
1
1
1
I
2
3
Totalmark 2A
No. Markscheme Submark
Totalmark
8(a) Thenumber 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 highestpercentagemassof nitrogen
1
4I
1 4
1. Double ondFormedwhen wopairsof electrons resharedbetweentwonon-metalatoms.
2- Triple ondFormedwhen hreepairsof electrons re sharedbehreen wo non+netalatoms.
1
1
1
1 4
(d)
(i)
(ii)
Compound KzO SO,
1 Physicalslate troom emoerature Solid Gas
2 Meltingpoint High LowAccept:A meltingpointof KzOis hiqherthan O,
3 Eledricalconductivity
Ganconductelectricitynmoltenoraqueous tate
Cannotconductelecficity n allphysicalstate
4 Solubilitvn water Soluble lnsoluble
Answers an be n sentenceorm o showcomparison.
KrO:1. forcesof attraction etweenons n KzO s strongerhan
SO,2. moreheat s neededo overcome break he attraction
forcell viceversa or SOz
1+1
1+1
1+1
1+1
1
1
8
2
Totalmark 20
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9
Section G
No. Mark Scheme SubMark
TotalMark
9(a)
But-2-ene
2-methylpropenel2+netfrylpropl-ene
HHHH
t l t lH-C-C:Q-C-H
t lHH
HHt l
H-C:C-C - H
l lIH
H- C-HIH
1+1
1+1 4
(b) 0
(ii)
Propanoic cid Ethanol
tAccept f studentname he reactantsorthe productsl
Chemical ropertiesor propanoic cid:1. Reactwith readive metral roducesaltandhydrogen as
II2. Reactwithbasesproduce altand water l3. Reactwithcarbonatesmetalprduce salt, carbon
dioxidegasandwater l
4. Reactwithalcoholproduce ster
[Any wo answers]
Chemical ropertiesor ethanol:1. Undergo ombustion roduce arbondioxide ndwater
// Bumt n orygen o produceCOzandHzO2. Undergo xidation roduce arboxylic cid ethanoic
acid l Reactwith acidifiedKzCrzOt MnOr to producecarboxyliccid
3. Undergo ehydrationroduce 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 bout2-5 cm"] fhexanentoa test ube.2. Add4-J dropsof bromine aterandshake.3. Observe nychanges nd epeatwithhexene.
Observation:Hexane: rown olour emainsnchanged.Hexene: rown olours ecolouriseturncolourless.
Reac'tion ithacidifiedotassium anqanate(Vl) solution
Procedure:1. Pourabout 2-5cm3 of hexanentoa test ube.2. Add 4-5dropsof potassiummanganate(Vll)olution
andshake.3. Observe nychanges nd repeatwith
hexene.Observation:Hexane: urple olour emain nchangedHexene:Purplecoloursdecolourise.
[Any wo tests]
No l/lark scherne Submark
Totalmark
10 aXD Sample nswer:MetalA:Magnesium/Mg
Mg -+ Mgt* + 2eReadantandproduc-tonectBalanceheequationonectly
1
14t ?
(ii) Oxidation 1 1
(b) SolutionX : Ferum(ll) sulphate reSOa
Solution Y : Ferum(lll) sulphate Fez(SO+h
Reducingagent .Fe2*Ferum (ll) sulphate FeSOn lron(ll)ionReason : oxidationnumber ncrease rom +2 to +3
Oxidising gent:Fe3* Ferum lll)sulphate Fez(SO+)glron(lll) onReason Oxidation umberdecrease rom+3 to +2
1
1
1
1
1.l
I o
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l1
Galvanometer
Carbon
electrodes
Chlorine water Potassiumbromidesolution
U-tubeDilutesulphuric cid
Conectand fundionalapparatusConectlyabelled'
1. Suitable hemical potassiumromide olution/anysuitable hemical olution
11
2.3.
4.
Dilutesulphuric cid s pouredntoa U-tubeA droppers used o fill onearm of the U-tubewithchlorinewaterPotassium romidesolutions addedcarefullytoanotherarmof the U-tubeBotharm of the U-tlbe is fitted withcarbonelectrodeReducing gent:potassiumromide olutionAt negativeelectrode, romide onsareoxidizedobromine2Br- Brz + 2eAt positive lectrode, hlorine
re reducedo chloride
11
5.6.7.
8.9.
11111
1rcns1O.Cl2+2e+2Cf
Max=
10
Totalmark 20
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SULIT
PEPERIKSAANERCUBAANPM2011CHEMISTRYKertas 3September
JABATANPELAJARAN EGERIOHOR
4s4r/3(PP\
4s4u3
SKEMA PEMARKAHAN
UNTT]K KEGTINAAI\IPEMERIKSA SAHAJA
Peraturan emarkahanni SIILIT dan Hak Cipta Jabatan Pelajaran Negeri Johor.Kegunaannya dtususuntuk pemeriksa yang berkenaansahaja.Sebarangmaklurnat
dalamperaturan pemarkahan ni tidak boleh dimaklumkan kepadasesiapa.Peraturanpemarkahanni tidak boleh dikeluarkan dalam apa-apabentukmedia.
Peraturan pemarkahan ni mengandungi18 halaman bercetak
454113 o 2011 Hak Cipta JabatanPelajaranNegeri Johor SULIT
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SULIT 2
Marking Scheme aper3
4s41l3(PP)
Question MarkScheme Score1(a)
I
Ableto stateone nferenceor eachexperiment-
Sampleanswers:
Test ube : lron usuoxidisedliron atom eleased lectron//iron(ll)ons Fe2*formed/iron(ll)onspresenU/rustingccur
Test ube l : lrondoesnot ust / iron(ll)onsarenotpresent/zincconodes Izincatom eleased lectron//zinc ons ormed lzincoxidised
Test ube ll : lronrusuoxidisedl ironatom eleased lectron//iron(ll)ons Fe2*formexJlrustingoccurliron(ll)onspresent
3
Able to stateany two inferences2
Able to stateany one inference1
No response rwrong response 0
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SULIT 4541/3(PP)
Question MarkScheme Score
1(b) Able to state he hypothesis ccurately
Sample nswer
\A/hen morefless lectropositive etal s in contactwithironfferum/Fe,he metal nhibitV(speedsp)rusting/corosion firon l
Whena more/less lectropositive etal s incontactwithiron/ferumlFe,usting f ronlferumlFes faster/slowerl
lf the metal n contactwith ron s higherflowerhan ronlferum/Fenelectrochemicaleries, he rusting/conosionf ron s slower/fastertl
The higherllowerhemdal in contactwith ron n electrochemicafseries/than ron/brum/Fe,he rustingfconosion f ironfierum/Fesslower/fiaster
3
Able to state the hypotesis conectly
Sampleanswer
lMrena morcy'lesslec-tropositiveetal, he metalinhibits(speedsup) rustinglconosiontiron l
lf themetal ncontactwith ron s higher han ronlferumlFenreactivity eries, he rusting/conosionf iron sslorerlf,aster//
The rustingof ron/ferumlFes faster/slower,f a more/lesselectropositive etal s in contactwith ronfferum/Fe
2
Able to state the idea of hypothesis
Sampleanswer
Differentmetal ncontactwith ron,will cause ron o rust /
Metalcan cause ron o rust.
1
No response r wrong esponse0
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.SLIL[T
l
Question MarkScheme Score1(c) Able o state he hreevariables orrectly
Sample nswer:
(i ) Manipulatedvariables:Type/different etals/ position f metal n electrochemicalseries
(ii) Respondingariable:Rusting conosion / presence f blue/pinkolour
(iii)Constant ariable:Size/massf ronnail ltypeof nail l clean ronnails /temperature/ mediumnwhich he ronnailsarekept
aJ
Able to state any wo variablescorrectly. 2
Ableto state any one variablecorrectly. I
No responseorwrong response
0
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Question MarkScheme Score
1(d) Able to givethe operationaldefinitionaccurately
Sample nswer
\A/henron s n contactwithmetal ower han ron n electrochemicalseries, luecolourationndicatesusting/
Rusting ccurswhen ronnail s in contactwith copper/tinlesselectropositiveetaland ormbluecolouration//
Bluecolourations formedwhen ron s in contactwith metal owerthan ron n electrochemicaleries
aJ
Able to givethe operationaldefinitioncorrectly.
Sampleanswer:
Bluecolourationndicatesustingl
Rusting ccutrs hen ronnail s in contactwithcopperftinlesselectropositiveetal
2
Able to givean ideaof the operationaldefinition'
ggpte l:
Rusting ccurswhen hecolourof solution hanges./Rusting ccurs
I
Noresponseorwrong rcsponse 0
SULIT 4s41l3(PP)
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SULIT 4s4U3GP)
Question MarkScheme Score
1(e) Able to predic'tanyone the obseruationsbasedon the
laboratoryexperimentcorrectlYSampleanswers
BluespoUcolourationl
lronnailbecomesmaller/
Lead trip emains nchanged
3
Able to predictone observations ess correctly.
$ampleanswgl:PinkspoUcolouration
2
Able to givean idea of observations.
Sampleansuter;
lronrus{s / BrowndeposiUspot
1
No responseorwnongresponse 0
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SULIT 4s4113(PP)
Question MarkScheme Score2(al Able to stateboth two observationsaccuratelyduringthe
experiment.
Sampleanswer:
1. Pinksolutionumscolourless.
2. Conicalflask ecomes arm/hot.
3
Able o stateone obseryation ccurately uring heexperiment. 2
Able to state any dea of obseruation.
Samoleanswer:
1- Volume ncreases
2. Pink
3. Colourless
4. Warm/hot
1
No responseor wrongresponse0
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4s41l3(PP)
MarkScheme Score2(b) Able o record he burette eadings ccuratelywith 2 decimal
points.
Answer
Set Initialreadinq Finalreadinq
I 0.00 26.00
u 0.50 24.50
til 5.50 30.50
3
Able to record he burette eadingscorrectly.
Answer
Set lnitialreadino Finalreadinq
I 0 / 4.0 26 / 26.0
il 0.5 24.5
Iil 5.5 30.5
2
Able to record any reading rom the the burctte completely.
SampleAnswer:
Set Initialreadinq Finalreadino
I 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 MarkScheme Score
2(c) Able to makea table o record hethe data rom hreeexperiments ccurately ith units.
SampleAnswer:
Setlnitialreading/
cm-Final eading/
cm-Volume CI/
cmu
I 0.00 26.00 26.00
il 0.50 24.50 24.00
ilr 5.50 30.50 25.00
3
Able to makea table o record he data rom threeexperiments
accuratelywithoutunits or correctlywith units.1. Answer:
Set Initialreading Finalreading VolumeHCI
I 0.00 26.00 26.00
il 0.50 24.50 24.00
ilI 5.50 30.50 25.00
2. answer:
SetInitialreading/
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)
- Headingwithoutunits- Set of experimenl
1
No responserwrong esponse 0
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10 4s4r/3(PP\
MarkScheme Score
2td) Ableto calculatehe average olumeof hydrochloric cidaccurately.
Answer:
26.00 24.00 25.00= 25.00 m33
3
Able to statethe averagevolumeof hydrochloricacidaccuratelywith units,
@r:
25.00cm3
2
Able o state he ideaof average olumeof hydrochloric cid.
Sampleanswen : ' r ' : r ' ' : '
25.00 l25.O t25 tt (Awrage eading atafrorn2b) + v {2 '
3
1
No response rwrong esponse 0
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SULIT t1 4s41l3(PP)
Question Mark Scheme Score
2(e) Able to statethe relationshipbetween he concentrationof
hydroxide on,OH- n sodiumhydroxide,NaOHwith timeuntilthe end point of titration accurately.
Sampleanswer:
The concentrationf hydroxideons/OH- ecreases ith ime. //
The ongerhe ime aken, he ower he concentrationf hydroxideions/OH-
3
Able to staG tre relationship between ie concenfation
hydroxide on, OH- n sodiumhydroxide,NaOHwith time untilthe end point of titration inaccurately.
Sampleanswer:
The concentrationecreases ith ime- //
The ongerhe ime aken, he oter the concentration
2
Able to state an idea of the relationshipbeturcen heconcentrationhydroxide on, OH'in sodiumhydroxide,NaOH
with time until the endpoint of titration.
Sampleanswer:
Concentrationecreases/ Lowerconcentration
'l
No responserwrong esponse 0
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Question MarkScheme Score
2(fl monoprotic, iproticand riprotic
acidaccuratelY.
Answer:Monoprotic, cid Dioroticacid Trioroticacid
HydrochloriccidEthanoic cidNitric cid
Sulphuriccid Phosphoric cid
3
to monoProtic, iProticand
triproticacidaccuratelY.
2
into monoProtic,diProticand
triprotic acid accuratelY.
1
No responseor wrongresponse 0
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MarkScheme Score
3(a) Able o givestatement f the problemaccuraGly.
Sampleanswer:
Does heposition/distanceetweenwometalsn electrochemical
series affecthevoltmetereading/voltage/potentialifferene?
Does hepositionldistanceetween airof metalsnelectrochemicaleriesaffecthevoltmetereading/voltage/potential ifference?/
Does he urtherhe distance f twometalsn electrochemicalseries.ncreasehepotential ifference?
3
Able to givestatementof the problemcorrectly.
Sampleanswer:
Does hepositionidistanceetweenmetalsn ElectrochemicalSeriesaffect hevoltmetereadi g/voltae/potentil differene?
Doespairof metalsn electrochemicalseriesffecthevoltmeterreading/voltage/potentialifference?
2
Able to give an idea of statementof the problemcorrectly
Sample nswer:
Does heposition/distanceetweenwometalsn reactivityeriesaffect hevoltmetereadng/votage/potentil differene?
Metals roduce voltage.
1
No response rwrong response 0
I3 u :
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eUe to state he threevariablescorrectly
Sampleanswer:
ManipulatedariableRespondingariable
Constantariable
: Pairsofmetals:'Voltage/ voltmetereading/ potential
difference: Electrolyte/ themetalas thepositive/negativeerminal/volume ndconcentrationf electrolyte
Abletbstate any wo variables orrectly
Ableto stateanyonevariablecorrectly
No response r wrongresponse
SULIT t4 4s41l3(PP)
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SULTT l5 4s41l3(PP)
Able o state he relationship etweenhe manipulated ariable
and he responding ariableand state he directionaccurately.
Samplqanswer:
The urtherhedistance f hepairofmetalsn he electrochemicalseries,he voltage voltmetereading potential ifferencebecomes reater./
The urther heposition f twometals nelectrochemicaleries,hehigherhevoltage potential ifferenceeading
betweenhe manipulated ariable
andthe respondingvariableandwithout stating tfie direction.
S3mple nswer:
The distance f thepairof metalsn the Elmtrochemicaleries.inffuenceshevoltage volfrnetereading potentialdifference
Able to state he ideaof hypothesiscorrectly
Sample nswer;
The urther he distance f electrodesn the Electrochemicaleries,
thevoltage voltmetereading potential ifference ecomes-greater/smaller
Differentmetals ivedifferent oltage voltmetereading potentialdifference
No response rwrong esponse
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SULIT t6 4s4113GP)
Question Mark Scheme Score3(d) Ableto giveadequateist of materials ndapparatushat
involves he following
- Three uitablemetalsbelow alcium]- Onesuitable lectrolyte- Voltmeter, eaker, onnecting ires,sandpaper
. Only wo materials nd/orapparatusan istout romdiagram.
Sampleanswer:
Aluminum, inc,copper, opper(ll) olution,
voltmeter,eaker, onnecting ires, andpaper
3
Able to givea list of materialsand apparatus hat involves heFollowing3 items:
- Twosuitablemetalsbelow alcium]- Onesuitable lec.trolytend container- Voltmeter
Sampleanswer:
Silver, ron sivernitrate olution
voltmeter, asinltestube
2
Able to givea list of materials hat involves he following2items:
- Twometals- Any namedelectrolyte
Sampleanswer:
Lithium ndpotassiumlSilverand ead
Hydrochloriccid
1
No responserwrong esponse 0
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SULIT L7 4s41l3(PP)
Question MarkScheme Score
3(e) Able to statethe following6 stepscorrectly.
Sampleanswer:
1. Pour copper(ll) ulphate olution suitable lectrolyteintoa container/beaker
2. Cleanhe metalstrips/aluminiumndcopperwithandpaperDipbothmetal/aluminiumndcoppernto heelectrolyteConnecthe metals/aluminiumndcoppertohevoltmeter// ompletehecircuitRecordhe voltmetereading
Repeat teps1to 5 by subtituting nemetal or .another/aluminiumithzinc
3.4.
5.
6.
3
Able to statethe followingsteps corectly basedon scoie &
- Steps 1or 3- Step4- Step5- Step6
2
Able to state he followingstepsconectly basedon score&
Step 1or 3
1
No responseorwrong response 0
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SULIT 18 4541/3GP)
Question MarkScheme Score
3tf)I
Able o exhibit he tabulationof datawhich ncludes hefollowing three information
1. Headingor the manipulated ariable2. Examplesof two pairsof metals3. Headingor the responding ariablewith units
Sampleanswer;
Pairof metals/Electrodes VoltageA/
AluminiumndcopperZincandcopper
2
Able to exhibit the tabulationof datawhich includes hefollowing information
1. Headingor manipulated ariable/respondingariablewithoutunit
2. Examplesof one pair of metals
Sampleanswer:
MetalVElectrodes Voltage
Aluminiumndcopper
1
No response rwrong response 0