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4541t1 Kimia Kertas 1 Sept 2009 1 ' / aj a m

JA B A T A NPELAJARANNEGERIJOHOR P E P E R IKSAAN PERCUBAAN SPM

KIM IA Kertas1 S a tujam iim abelasminit

JA N GA NB U K A K E R TASSOALANINISEHINGGADIBERITAHU 1. 2. 3.

Kertassoalanini adalahdalamdwibahasa. Soalandalambahasalnggerismendahuluisoalanyang sepadan dalambahasaMelayu. Calondikehendakimembacamaklumatdi halamanbelakanqkeftas soalanini.

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Whichof the followingrepresents the arrangement of particlesin water? Antaraberikut,yang manakahmewakilisusunanzarah bagi air? Affi\

aY-nl

)# ffi

dlfr B

Xn-rWrvrr

nW-X \_./

L

c VY

-AJ

a-P

"I0 D

ffi

Whichof the followingstatement is not truefor one moleof a substance? Antarayang berikut, yang manakahtidak benarbagi satumol bahan? A

1 moleof oxygengas contains6.02x 1023molecules 1 mol gas oksigenmengandungi6.A2x 1A?3 molekul

B

1 moleof sulphuratomcontains6.02x 1023atoms 1 mol atom sulfurmengandungi6.02x 1023atom

c

1 moleof a gas occupies24 dm3at roomcondition 1 molgas menempati24 dm3padakeadaanbilik

D

1 mole of a gas occupies24 dm3at standardtemperatureand pressure 1 mol gasmenempati24 dm3paclasuhu dan tekananpiawai

L

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454U1

Diagram1 showsthe symbolof fluorineatom. Rajah 1 menunjukkansimbolbagi atom fluorin

Diagram1 Rajah 1 Whichof the followingis true basedon the symbolin Diagram1. Antara berikutyang manakahbenarberdasarkansimboldalam Rajah 1 Proton number

Nu c le o nn u mb e r Nombornukleon

Numberof electron Bilanaan elektron

A B

c

10

D

J

Pelajaran [email protected] NcgeriJohor

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4541tl which of the followingcomparison is correctaboutioniccompounds and covalentcompounds? Anlara perbandinganberikut, yang manakahbetutmengenai sebatianionik dan sebatiankovalen? loni c c o mp o u n d s

Co v a le n tc o mp o u n d s

Sebatianionik

Sebafian kovalen

Havelow meltingand boiling points

Ha v eh ig hme lt in ga n d b o ili n g p o t n ls .

Mempunyaitakatlebur dan didih yang rendah.

Mempttnyaitakatlebur dan didih yang tinggi.

E xista s s o lida t ro o m temperature.

Ma ye x is ta s s o lid ,liq u ido r g a s at roomtemperature.

Wujudsebagaipepejatpada suhu Baleh wujudsebagatpepejal, bitik cecairatatt gas pada suhu bilik.

Do notconductelectricity. Tidak mengkonduksikan elektrik,

Usuallydis s o lv ein o rg a n ic solvents. Biasanyalarut dalantpelarut organik.

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Conductelectricity in aqueous s o lu t io no r mo lt e ns t a t e . Mengkondu ksikan elektrik dalamlarutanakueusatau

Usually dissolve inwater Biasanyalarutdalamair.

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4541tr

Whichof the followingcircuitwilicausethe bulbto lightup? Antaralitar berikut.yang manakahakanmenyalakanmentol'r I I

F-----------1

Am m onia solution Lartttanammonia ill

Glucosesolution Larutanglukosa

IV

F-___-l

Ethanol Etanol I and ll only

lll a n d lV o n ly

I dan ll sahaja

lll dan lV sahaja

I and lll only

D

I dan lll sahaja

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451Ur

Whichof the followingis not a chemicalproperty of an alkali? Antarapernyataanberikutyang manakahbukan sifatkimia suatu alkali? A B

Alkali+ acid +

salt+ water

Alkali+ asid )

garam + air

Alkali +

metal +

salt + water

A lkali + loga m )g a ra m+ a ir C

Alkali+ metalion )

insoluble metalhydroxide

Alkali + ion logam ) Hidroksidalogam yang tidak larut D

A lkali+ ammo n iu m s a lt )

s a lt + wa t e r + a mmo n iag a s

Alkali + garam ammonium t

7

garam + air + gas ammonia

Whichof the followingsaltis insoluble in water? Manakahdi antarayang berikutmerupakangaramtak terlarutkandi dalamair? A

Silvernitrate Argentumnitrat

B

Calciumchlorid e Kalsium klarida

C

A mmoniumsulp h a t e Ammoniumsulfat

D

Lead(ll)carbonate Plumbum(ll)karbonat

b

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4541t1 Diagram2 showsthe flowchartof ContactProcessto manufacture sulphuric acid. Raiah2 menunjukkancarta alir prosesSenluhuntukpembuatan asidsutfurik S ulphur

t, Sulfur _i

S u lp h udr io x id e Sulfurdioksida

W

.l

----------|l

-

bul0nurtnoxrde i ,l

|

Sutfurtrioksida

I

{- [i]

Diagram 2 Rajah2 Whatis X ? Apakah X? A

Oleum abum

B

A mmonia Ammania

C

NitricAcid AsidNitrik

D

S ulphurmonoxi d e Sulfurmonoksida

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which of the followingstatement bestexplains the decreasein rateof decomposition of hydrogenperoxide withtime? Antara berikut,yangmanakahpeneranganterbaikuntukmenerangkan pengurangankadar penguraianhidrogenperoksida dengan masa? A

Decreasein quantityof products Pengurangan kunatitih astI

B

Decreasein volumeof hydrogen peroxide Penguranganisipaduhidrogenperoksida

C

Decreasein temperature peroxide of hydrogen Pengurangansuhu hidrogenperoksida

D

Decreasein concentration of hydrogenperoxide Pengurangankepekatanhidrogenperoksida

10 Margarineis madeby hydrogenation of the unsaturated vegetable oil suchas sunfloweor ilo r p a lmo rl. Margerindihasilkanmelaluipenghidrogenan minyaksayuran tak tepu seperliminyakbungamatahariatauminvaksawit.

Basedon the information above whatis the catalyst, temperature and pre$sure neededfor the reactionto takeplace? Berdasarkanmaklumatyang diberi.apakahmangkin,suhu dan tekanan yang diperlukanuntuktindakbalastersebutberlaku?

A B

Catalyst

j

Wkt,

i

tron lron

c

Nickel

D

Nbk;

I

Temperature(oC)

srhrf c)_

Pressure(atmosphere) Tekanan(atmosfera)

goo 20a

_i

I I

4

200

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4541tt D i a g ra m3 sh o w sa se t- upof appar atus of a r edoxr eaction. Rajah3 menunjukkanset radasuntuk tindakbalasredok.

AcidifiedPotassium manganate$/l l) solution Kaliummangganat(Vll) berasid

l ro n(l l )su l p h a te Ferum(ll) sulfat

S u lp h u ric a c id Asidsulfurik

Diagr am 3 Rajah3 Whichof the followingis correct? Manakahantarapernyataanberikutadalahbenar? l ro n (l l )i o n ,F e 't is r educed lon Ferum(ll),Fe2*mengalamipenurunan ElectronsflowfromelectrodeP to Q Elektronmengalirdari elektrodP ke Q T h e p u rp l eco l ourof solution becomesgr een Warnaungu larutanmenjadihijau Ma n g a n a te (Vll) ion,M nO+- acts as the r educing agent l o n ma n g a n a t(Vll) , MnO+ber tindak sebagaiagenpenur unan

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Whichof the followingrs an endothermic reaction? Manakahantaraberikutadalahtindak balasendotermik? A

pelletsin distilled Dissolving sodiumhydroxide water Melarutkanbutirannatriumhidroksidaaalam air

B

Addingzincpowderto copper(ll) sulphatesolution Tambahkanserbukzink kepadalarutankuprum(ll) sulfat

C

Dissolving a mmo n iu m c h lo rid se o lidin d is t ille wa d ter Melarutkanpepejalantmoniumkloridadalam air suling

D

The combustion of ethanolin excessoxygen Pembakaranetanoidalamoksiqenberlebihan

13

Thickeners are usedto thickenfood.Whichof thefollowingis a thickener? Agenpemekatdigunakanuntukmemekatkanmakanan.Yangmanakahantara berikutmerupakansatuagenpemekat? A

Vinegar Cuka

B

Lecithin Lesitin

C

Gelatine Gelatin

D

Aspartame Aspaftam

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454u1 Diagram4 belowshowsan atomicmodel Rajah4 menunjukkansuatumodelatom.

r'c\r ,!\

?-o:'

\\

lr t A

A \-,

V ., //

Dia g ra m 4 Raiah4 Whichof the followingis not true? Antarapenyataanberikutyang manakahtidak benar? A

P roposedby J.J . T h o ms o n . Dicadangkanoleh J.J. Thomson

B

The nucleuscontainspositively*charged particles calledprotons. Nukleusmengandungi zarahbercaspositifyang dipanggilproton.

C

The electronsmovein a spacethatis largerthanthe spaceoccupiedby the nucleus. Electronbergerakdalamruangyang lebih besardaripadaruangyang ditempati oleh n ukleus.

D

The positivechargeand mostof the massof the atomare conceritrated in the nucleus. pada nukleus. Cas poslfifdan kebanyakanjisimatom terTumpu

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Thefollowingequationshowsthe reactionbetweenhydrogengas and iodinegas to formhydrogenicdide. Persamaanberikut menunjukkantindak balasantara gashidrogendan gasrodrn untuk membentukhidraqeniodida. H, (g ) +

lz (9 )

)

2 Ht (g )

Whichof the followingstatement is not true? Antarapernyataanbenkutyangmanakahtidak benar? atomicmas s ,H = 1 , | = 1 2 7] I Relative I JisimAtom Relatif,H = 1, | = 127] and pressure] I Molarvolumeof gas = 24 dm3mol"rat roomtemperature flsipadumolar gas = 24 dm3mofl paclasuhu dan tekananbilikl A

2 molecules of hydrogen reactwith2 molecules of iodineproduced 2 moleculeof hydrogen iodide 2 malekulhrdragenbertindakbalasbertindakbalasdengan2 molekul iodin menghasilkan2 molekulhidrogeniodida

B

2 mol of hydrogeniodideis producedby the reactionbetween'1molof ga s a n d 1 mo lo f io d in eg a s hydrogen 2 mo! hidrogeniadidadihasilkan olehtindakbalasantara1 mol qas hidrogendan 1 mol gasiodin

C

48 dm3of hydrogeniodideis producedby the reactionbetween1 molof ga s a n d I mo lo f io d in eg a s hydrogen 48 dm3hidrogeniocliciaclihasilkan oleh tindak balascltantara1 mol gas hydrogendan 1 mol gas rodin

D

1 mol iodin eg a sa n d 1 mo lh y d ro g egna s a re re q u ire d t o p ro d u c e2 m o l cf hydr"ogen iodidegas 1 mol iodirtdan 1 mol gashtdrogendiperlukanuntukmenghasilkan2 mol gas htrogeniodida

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4541t1

16 Diagram5 showsthe positionof elementX in the PeriodicTableof Element.Whichof the following is not true aboutthe element? Rajah5 menunjukkankedudukanunsurXdalamJadual BerkalalJnsur.Antara berikut,yang manakahtidak benar tentangunsuritu?

Dia g ra m 5 Rajah5

A

It doesnotconductheat la tidakmengkonduksihaba It has highmeltingpoi n t ta mempttnyaitakatleburyang tinggi

c

It canformcolouredco mp o u n d s la boleh membentuksebatianyang benuarna It showsdifferentoxidation numbersin itscompounds la menunjukkannomborpengoksidaanyang berlainandalam sebatiannya

-l J

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154u1

Magnesium reactswithchlorinegasto producemagnesium chloride. Whichof the followingis true aboutmagnesium chloride? Magnesium bertindak balas dengan gas klorin untuk menghasilkanmagnesium klorida" Yangmanakahadalahbenar tentangmagnesiumklarida? MolecularForm u la Formula molekul

Bond lkatan

Type Of Particles Jenis Zarah

MgCle

lo n ic !onik

lo n ion

MgCl2

Covalent Kovalen

Molecule Molekul

lo n ic ionik

ton lon

Co v a le n t Kovalen

Mo le c u le Molekul

MgCl

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'l54lll

Diagram6 showsthe set-upof apparatus of a chemicalcell Whichof the followingaretrue of a chemicat cell? Rajah 6 menunjukkansusunanradassuarusel kimia. Antaraberikutyang manakah benarmengenaisetkimia?

Electrodes Elektrod L iq u idA CecairA Dragram 6 Rajah 6 The electrodes are of the samemetal. Elektrod-elektrodadalahlogamyang sama. ll

The electrodesare of differentmetals Elektrad-elektrod adalahlogamyang berlainan

ill

LiquidA is an electrolyte. CecairA ialah sejeniselektrolit.

lv.

LiquidA is an org a n ics o lv e n t . CecairA ialahpelarut organik.

A

I and lV only I dan lV sahaja

B

ll and lll only ll dan lll sahaja ll and lV only ll dan lV sahaja

D

l, lll and lV only l, lll dan lV sahaja

ll

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SULIT 19

22.0cm3of solution, NaOHis neededto neutralize 25.0cm3of sodlumhvdroxide acid,HCl.Whatis the molarityof the sodium 0.10moldm-3hydroclrloric NaOHsolution? hydroxide, 25.Acm3 larutannatriumhidroksida,NaOHcliperlukanuntukmeneutralkan22.A cmu0.10 mol dm'3Asidhidroktorik,HCl. BerapakahkemolaranlarutanNatriumhidroksida,NaOH? A

mol dm-3 O.0BB

B

0.078mol d m-3

C

0.077mold m-3

D

0.08mol dm-3

reaction? Whichof the followingchemicalequationrepresents a neutralisation kimiaberikut, yangmanakahmewakilisatutindakbalas Antarapersamaan peneutralan ? l.

P bO +

ll.

CH3COOH +

lll.

Mg

lV

BaClz +

+

2HC l +

P b O lz +

KOH )

2HN O 3 ) HzSO4+

Hz O

CH3 CO O K+

M9 (NO 3 )2 * BaSOo +

Hz O

Hz 2HCl

I and ll only I dan Il sahaja ll and lll only ll dan lll sahaja ll and lV only ll dan lV sahaja l, lll and lV on ly l,ll dan lV sahaja

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454u1

Whichof the followingcomposite materials arecorrectly matchedwiththeiruses? Antarabahankompositberikutyangmanakahdipadankandenganbetul?

Composite materiai tsahanKomposit

Kegunaan

FibreOptic Fiber Optik

Usedin mobilephones Diqunakandalam telefonmudahalih

Fibregla s s Fiber kaca

To makewaterstoragetanks Untukmembuattangkisimpananair

S uperco n d u c t o rs Superkonduktor Reinforced Concrete Konkrit y ang diteguhkan

i i^^^ tJ >CJ

To makeopticallenses Untukntembuatkantaontik

I

I L

To buildoil platforms IJntuknembtnapelantar minyak

and ll only dan ll sahaja and lll only dan lll sahaja ll and lV only ll dan lV sahaja ll,llland lV only ll il,

lll ril

^^r drru

t\/ rv

-^L^;^ )d|dJd

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4541t1 Diagram7 showsa graphof the volumeof carbondioxidegas produced againsttimefor the reactionbetweencalciumcarbonate ano sulphurrc acid. Raiah7 menunlukkangraf isipadu gaskarbon dioksidaterhasitmelawan masa untuk tindakbalas antarakalsiumkarbonatdan asidsulfurik. Volumeof CO, gas/ cmu lsipadugas CO2/ cm"

Dia g ra m7 Rajah 7

Time/ second Masa/ saat

The gradientof the graphdecreases withtimebecause Kecerunangraf berkurangandengan masakerana Catalystis not used Mangkin tidak digunakan Voiumeof mixturedecreases i sipaducampLtranberkurangan Temperature of reaction decreases lsipadutindak balasberkurangan Concentration of sulphuric aciddecreases Kepekatanasidsulfuik berkurangan

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4541t1 A carboncompound, caH6undergoes thefoilowing chemicar reactionsexcept sebatiankarbon,coH6menjatanitindakbalaskimia berikutkecuati A Combustion reaction Tindak balas Pembakaran B

Substitution reaction Tindak balas pe nukargantian

C

Halogenation reaction TindakbalasPenghalogenan

D

24

Hydrogenation reaction Tindak balaspenghidrogenan

Whichof the followingshowsthe correctoxidation numbersfor eachparticle? Manakahantara berikutmenunjukkannombor pengoksidaan yang betul bagi sellap zarah?

Ns'

Hzo

A

B

c

l9

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15 1 1 t 1 Thefollowingshowsa thermochemical equation Berikutadalahsuatupersamaantermokimra. I I

I t

Nr(g) + 2o z (9 ) -)

2 NO : (g )

A H = + 1 8 0 . 6k J

Basedon the equationabove,it can be concluded that Berdasarkanpersamaandi atas,bolehdisimpulkanbahaw,a A

Energycontentof nitrogenandoxygenis hrgherthanenergycontentc{ nitrogendioxide. Kandungantenaganitrogendan okstgenaclalahlebihtinggidaripada kandungantenaganitrogendioksida.

B

Heatis releasedto overcome the bo'rctngof nrtrogen and oxygen. Tenagadibebaskanuntukmengatasitkatannitrogendan oksigen.

C

180.6kJ energyis absorbed duringthe formatron of nitrogendioxide. 180.6kJ tenagadiserapsernasapenbentukannitrogendioksida.

D

Temperature of the surroundings increases duringthe reaction Suhupersekitaran bertambahse/7iasa tindakbalasberlaku.

26

Azo andtriphenylcompounds are commonly usedin food industries. Statewhy azo and triphenylcompounds are addedfoods. Sebafianazo dan trifenilkerap dtgunakanclalantindustrimakanan. Nyatakanmengapasebatianazo dan trifenikditambahke dalam makanan A

To restorethe colourin food Untttkmengembaltkanwarnadalammakanan

B

To stabilisethe dispersion of oil in warer, Untukmenstabilkanpenyebaranminyakdalamair.

C

To enhancethe tasteandflavourof food. Untukmeningkatkanrasadan kelazatanmakanan

D

To preventthe foodfrombeingoxidisedby air. Untukmenghalangmakanandioksidakan oleh udara.

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1541t1

Diagram8 showsthe electronarrangement of sodiumatom Rajah B menunjukkansusunanelektronatontnatrium.

t

I

Dia g ra m B RajahI Whichis the correctstandardrepresentation for the atom?[Nucleonnumber:23] Yangmanakahmenunjukkanpenwakilan piawaiyangbetul bagi atom tersebut? INombor Nukleon: 23 ] A

B

28

lllr^

c

2 -t rr

2jtvQ

;; tva

??wo

)ir,,o

The numberof atomsin one moleof carbondioxideis equalto the numberof atomsin Bilanganatom didalam satumol karbondioksidaadalahbersamaandengan bilanganatom didalam A

1 molechlorinega s 1 mol gas klorin

B

3/4 moleammonia 3/4 mol ammonia

C

112malealuminium 1/2 mol aluminium

D

2/3 molesulphurdioxide U3 mol sulfur dioksida

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4s4lt1 Table'1showsthe protonnumberfor elements W, X, y andZ. Jadual1 menunjukkannomborprotonbagiW,X,y dan Z.

A

B T a b le1 Jaclual1 which of the followingstatement is true aboutthe elementsw,X,y andz Antarapernyataanberikut,yang manakahbenar tentangunsur-unsurw, X, dan Z? ElementW andY are metals Unsur W dan Y adalahlogam ElementX willforman amphoteric oxide UnsurX akan membentukoksidaamfoterik ill

E lementZ is a ls ok n o wna s n o b leg a s UnsurZ juga dikenalisebagaigasadi

IV

All the elementsW,X,Y andZ are in periodthree Semua unsur W, X, Y dan Z beradadalamkala tiga

A

I and ll only I dan ll sahaj a ll and lll only ll dan lll sahaja

c

ll , lll and lV on ly ll, lll dan lV sah a ja

D

l, ll , lll and lV l, ll, lll dan lV s a h a ja

/.1

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4541/l Diagram9 showsthe electronarrangement of a compounciformed between atomsX and Y. Raiah 9 menuniukkansusunanelekktronbagi sebatianyang terbentukantara atom X dan Y.

Dia g ra m 9 Rajah9 Whichof the followingstatement is trueaboutthe compound? Antarapernyataanberikutyang manakahbenartentang sebatianini? A

The compoundhasa h ig hb o ilin gp o in t . Sebatianini mempunyaitakatdictihyang tinggi

B

The compounddoesnotconductelectricity. Sebatianini tidakmengkonduksikan elektrik.

C

The compoundis formedby electrontransfer,

D

Sebatianini terbentukmelatuipemindahanelektron. The compoundexistsas solidat roomtemperature. Sebalianiniwujud sebagaipepejal padasuhu bilik.

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31

of copper(ll) 10showstheset-upof apparatus fortheelectrolysis Diagram in beaker solution in beakerY ustng solution X andsodiumnitrate sulphate carbonelectrodes. proseselektrolisis susunanradasuntukmenjalankan Rajah10menunjukkan larutan Kuprum(ll)sulfatdi dalambikarX danlarutanNatriumnitratdi dalam elektrodkarbon. bikar Y denganmenggunakan

Coppe(ll)sulphate solution Larutankuprum(ll) sulfat

nitrate Sodium solution Larutannatrium nitrat BeakerY Bikar Y

BeakerX BikarX Diagram10 Rajah10

Whichof the followingare producedat the anodesof beakerX and beakerY? Manakah antara berikut hasilyang akan diperolehidi anod pada bikar X dan bikar Y?

A

B

c D

BeakerX

BeakerY

Bikar X

Bikar Y -Oxygen

Oxygen Oksigen

Oksigen

Oxygen

Nrtrogen

Oksigen

Qksigen

Sulphur

Oxygen

Sulfur

aksigen

Copper

S o d iu m

Kuprum

Natrium

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151U1

A farmerdiscovered that his vegetables werenotgrowingwell becausethe soil was acidic.Whichof the following substances can be usedto overcomethe problem? Seorangpetani mendapatitanantansayurannyaticiaktumbuhdengansubur keranatanahnyaberasid.Antarabahanberikut,yang manakahboleh digunakan untukmengatasimasalahtersebut? A

Zincoxide Zink oksida

B

Calciumoxide Kalsium oksida

C

S odiumhydroxide Natrium hidroksida

D

Magnesium hydro x id e Maqnesiumhidroksida

I

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33 A seriesof iesis were carriedout on a solutionof sattX Table2 showsthe resultsof the tests. Safu srri ujian telah dijalankan ke atas larutan qarant X Jadual 2 ntenunjukkan keputusanuiian tersebut. i I

Test

O b s e rv a t io n

Ujian

Pemerhatian

A dd lead(ll)nitratesolu t io n .

Whitepre-iprtate Oisscives il. ,,,/ater when heated

Tambahkan larulanplumbum(l t) nitrat Mendakan putih, larut dalant atr apaotla .t;^^,^^^t,^^ vluotlaa^dt

A dd dilutesulphuric acid .

!

No c h a n g e

Tambahkanasid sulfurikcair

Addaodlumhydroxrde soluiifi-u;tiln Whiteprecipitate is formed excess.

I t is in s o lu b le rn e x c e s ss o d iu mh y d r o x i d e s o lu t io n . Tambahkaniarutan natrrumhidroksicta sehinggaDerlebihart. Mendakanputih terhentuk. ia tidaklarut daiamiarutannatilum

berlebihan. i hidroksida ionffiilLn€xcess F\nIe p;ecibiijieis'roim;A

A

l I

I t is rn s o lu b le in e x c e s sa mmo n ias ol u t i o n

Tantbahkan larutanakueusantmonia I sehinggaberlebihan. putih terbentux 1Menclakan la tidaklarut dalantlarutanakueus anmoniaberlebihan. T a b le2 JaCual2 Basedon the resultsof the experiment. saltX is Berdasarkankeptiiusaneksperimen,garamX talaii A

Zinccniorid e Zinc klorida

B

Calciumcar b o n a t e Kalsiumkarbonat

C

A luminiunr s u rlp h a t e Aluminiumsulfat

D

Magnesium c h lo rrd e Magnesiuntklorida

26 45411(D2009Ilakcipta.labatan Pelajaran Ncgcri.lohor

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34

4541t1

Thefollowinginformation showsthe properties of glassX. Maklumatberikutmenunjukkanciri-c:iribaqi kaca*. Low meltingpoint Takatlebur rendah Easilyshaped Mudah dibentuk Highchemicaldurability Daya tahanyang tinggiterhadapbahankimia Highthermalexpansion coefficient Pemalarpengembangantermatinggi Whatis glassX? ApakahkacaX? Fusedglass Kaca silicatelakur S oda-lime glass Kaca soda kapur Borosilicate glass Kaca borosilikat Leadcrystalglass Kaca Plumbum

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35

I and il to studythe rateof Table3 showsthe resultobtainedin Experiments reaction yangdiperolehidalameKsperimen I dan i! Jadual3 menunjukkankeputusan untukmengkajikadar tindakbalas. Hy d ro c h lo ric a c id Asidhidroklorik Co n c e n t ra t i o n I

i i 1 . . i -. E xperiment1 Z in c me t a l(5 9 ) .

I

i il

EksperimenI Logamzink(S9) ] . .VoluT" ., (cm') IstP duu lsiPadu (url l l)u r'Butirani"

i

I

ii

I

l^Jl l u l c^ - ^d^i.,1

I

t

/mnr .r*.3\ - !mo!{ni)-----:

-

A,l l

' '

-!

i-'

l"

kepe*atan

,

P ow der

,,

lf i L_,-_---__

i

nc 13

,

_ ,

>C T D U K

e eL )

,

T a b le3 J a d u a 3l thetwo experiments? Whichof the foilowinggraphsrepresent eksperimenitu? Antaragraf berikut,yang manakahmewakilikedua-clua A

B

Volumeof H2/cm3 lsipaduH2/cm3

Volumeof Hrr'cm3 lstpaouH2/cm3

+i l

_---*

i, ..,' j./

ji

rl

l. t ii-

-----***,-*.1"

Timeis Masa/

Timels Masa/ Volurre cf Hr,cm3 /s/pac.,n. anl'

Volumeof H2lcm3

1l ''-*"--v**

I Iil tC/>

Time/s

tvtdJCl/

!VId Jd !

28 PelajaranNegeri Johor 454 I I | @ 20A9H akcipta .labatan

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454y1

I1

i II r r ll-

f\-

-t

1 |-l

IJ I I I

I]-

c I I I LI I1

r '_ a \ L _ -\ _ I I

I LI

It

i

(-L i

tr rr

II II

n

Whatis the namefor the structural formulashownabove? Apakahnama untukformulastrukturyang ditunjukkandi atas ?

A

Pent-2-ene Pent-Z-ena

B

3-methylbut-2-ene 3-metilbut-2-ena

C

2-methylbut-2-ene 2-metilbut-2-ene

D

2-methylpent-2-ene 2-metilpent-2-ena

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37

is not true? In Diagram11 below,whichof thefollowing Dalam Rajah11 di bawah,yangmanakahtidak benar?

X plate PlatX

Y p la t e Plat Y F l ani r nl r i to

Elekrrolit Dia g ra m1 1 Rajah11 MetalXIY

Metalthat will be reduced

Logam X/Y

Logam yang mengalami penurunan lro n Eesi f'-nnnor

Besi/Kuprum

Kuprum

/S t a n u m A luminium Aluminium/Timah Magnesium / Co p p e r Magnesium/Kuprum

30 Pelajaran NegeriJohor Jabatan 454IlI@2009Hakcipta

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454U1

Table4 showsthe fuelvaluesof somecommonfuels. Jadual4 menunjukkannilai bahanapi untukbeberapabahan api yang biasa.

Fuel

F u e lv a lu e(k J g ' ' )

Bahanbakar

Nilaibahan baker (kJg')

l i I i

Coal Arangbatu Charcoa l Arang Kerosene Minyak Tanah

N a tu raglas Gas asli

i

i

I

Table4 Jadual4 Whichfuelhas a highfue lv a lu eb u tis n o te c o n o mic anl,o te a s ilya v a ila b le and non-renewable. Bahan api yang manakahmempunyainitaibahanapi yang tinggi,tetapitidak ekonomi,sukardiperolehidan tidakbolehdrperbaharui. A

Coal Arangbatu

B

Charcoal Arang

C

Kerosene MinyakTanah

D

NaturalGas Gas as/i

JI

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SULIT 39

willproducescumwhen it reactswithsoap? Whichof the followingsubstance Manakahantarabahan berikutakan menghasilkankekat apabilabertindak dengansabun? A

S odiumch lo rid e Natrium klorida

B

Calciums u lp h a t e Kalsium sulfat

C

c h lo rid e Magnesiu m Magnesiumklorida

D

Potassiumnitrate Kalium nitrat

40

A and O in a metaloxide,and theirrelative Table5 showsthe massof elements atomicmasses. Jadual 5 menunjukkanjisim unsur-unsurA dan a dalam suatu oksida logam seriajisimatom relatifmasing-masing.

M a s s/ g

11 428

Jisim /g Relativeatomicmass Jisim atom relatif

Table5 Jadual5 Whatis the empiric af o l rmu lao f t h e c o mp o u n d ? Apakahformulaempiriksebatiariitu? A B

ArO

c

Aro.

D

A,OU

32 NegeriJohor Pelaiaran 45411 lC!,2009HakciptaJabatan

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SULIT 41

4541tl In the PedodicTableof Elements, elementX is in Group2 andelementy is in Group17.ThelettersX and Y are notthe actualsymbolof the elements. Which of the followingchemicalequationis true for the reactionbetween elementX and elementY? Dalam JadualBerkalalJnsur,unsurX beradadalamKumpulan2 dan unsur y beradadalam Kumpulan17. Huruf- huruf X dan Y yang diguna4anbukansimbol sebenarunsuritu. Antarapersamaankimia berikut,yang manakahbenar bagi tindak balas antara unsurX dan unsurY? X + Y)

XY

B

2X +Y +X 2Y

c

X + Y 2+X Y 2

D

2X +Y r)2X Y

JJ

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4541lr /+

?

andZ-

rra n g e me n t in io n s W, X ,

-2+ oan L

elektrondalamionW , X* ,,* i

I

,/fi-.\ \ 10n /

/,-\

(z \20nl

)

Dia g ra m1 2 Raiah12 Whichof the foliowingshowsthe correctnucleonnumberof the ion? nontbornukleonion yangbetul? Antaraberikut,yang manakahmenuniukkan

Nu c le o nn u mb e r Nombor nukleon

A B

c

I

34 Pelajaran Ncgeri.Tohor Jabatau Hakcipta 454111@2009

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SULIT 43

454111

A studentwantsto electroplate an ironkeywith silver.Whichof the followingpairs of electrodes and electrolyte are suitable to be usedin thisexperiment? Seorangpelajar ingin menyadurkunci besidengan argentum.Pasanganelektroci dan elektrolit Vanq manakah sesLt

Cathode

ElectroivG

- -- __l

Elektrolit A

S ilv e rs u lp h a t e Argentumsulfat

B

S ilv e rc h lo rid e Argentumklonda

c

tron Sesi

Ca rb o n I I

K trhnn

D

Silvernitrate I, Argentumnitrat S ilv e rh y d ro x id e Argentumhidroksida

44

Hydrochloric acidreactswithsubstance Y and producesa gas as one of the y? products. Whichof the following is not substance Asidhidroklorikbertindakbalasdenganbahany dan menghasilkan suatu gas sebagaisalah satuhasiltindakbalas,Manakahantaraberikutbukan bahany? A

Zincgranule Kepinganzink

B

Zincoxide Zink oksida

C

S odiumthiosulp h a t e Natrium tiosulfat

D

Magnesium carb o n a t e Magnesiumkarbonat

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SULIT 45

acidand Chemicalequationbelowshowsthe reactionbetweenhydrochloric sodiumcarbonatePowder. persamaankimia berikutmenunjukkantindak balasdi antara asidhidroklorik dan serbuknatriumkarbonat. 2HCl +

NazCO: )

2NaCi +

H2C +

CO,

when25 cm3of the volumeof carbondioxidegas released Calculate withexcesssodium acidof 0.2 moldm-3reactscompletely hydrochloric carbonatePowder. ] [ 1 mol of gas occupies24 dm3at roomtemperature apabila25 cm3 asid yang ctibebaskan dioksida Hitung isipadugas karb^on serbuknatrium dengan balas lengkap nidroktorik0.2 mot dm'3berlindak karbonatyang berlebihan.^ [ 1 mol gasmenepati24dm'pada suhu bilik] A

60 cm3

B

0.6 dm3

C

50 cm3

D

0.'12dm 3

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SULIT 46

45tyl The followinginformation showsthe effectof a particularfactoron the rateof reaction. Maklumatberikutmenunjukkankesansuatufaktoryang mempengaruhikadar tindakbalas. Particleshavehigherkineticenergy Zarah mempunyaitenagakinetikyang tinggi Frequency of collisionbetweenparticles Increases Frekuensipelanggaranantarazarahbertambah Frequency of effective collision increases Frekuensipelanggaranberkesanbertambah

Whichof the followingcan causethe aboveeffect? Manakahantaraberikutakan memberikankesan di atas? A

Addinga catalyst. Menambahmangkin

B

lncreasing temperature of reactants Menaikkansuhu bahantindak balas

C

Increasing the concentration of reacranrs. Menambahkepekatanbahantindakbalas

D

Increasing totalsurfaceareaof reactants. Menambahjumlah luaspermukaanbahantindak balas

)l

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Diagram'13is a flow chartshowingthe conversionof alkeneto carboxylicacid and alkane. Rajah13 menunjukkancafta atirperubahanalkenakepada asid karboksilikdan alkana. I

.!-

i-;u'*-l{-Atkana I

---------|

I

II ^ t{

l"

V

I i

acid I Carboxylic nsia Karboksilik !

Dia g ra m1 3 Rajah13

1,2 and3? Whatarereactions tindakbalas'1,2 dan3? Apakah

D

Hydrogenation

Hydration

Oxidation

Penghidrogenan

Penghidratan

Pengoksidaan

Hydrogenation

Oxidation

Dehydration

Penghidrogenan

Pengoksidaan

Pendehidratan

Oxidation

Hydration

Dehydration

Pengoksidaan

Penghidratan

Pendehidratan

Hydration

Hydrogenation

Oxidation

Penghidratan

Penghidrogenan

Pengoksidaan

38 NegeriJohor Pelaiaran HakciptaJabatan 4541118t20A9

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4511tl P, Q and R are metals.Basedon the ionicequationsbelow,whichof the following statementis true? P, Q dan R merupakanlogam.Berdasarkanpersamaanian di bawah,penyataan yang manakahbenar ? Reaction1 Tindakbalas 1 Reaction2 Tindakbalas2

:R +P2+ +

R2 * + p

P and Q are oxidised P dan Q teroksida P is moreelectropositive thanR. P adalah lebih elel
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of threecommonfuels' Table6 showsthe heatof combustion Jactuat6 menunjukkanhabapembakaranuntuktiga bahanapi Fuel

Fleatof combustion/ kJmol'

Bahanapi

HabaPembakaran/ kJmoll

Methane

-890

Metana Ethanol

-13 7 6

Etanal Propane

-2234

Propana Table6 Jadual6 Whichof the followingstatementis true? Antarapernyataanberikut,yang manakah benar? A

moreheatenergythan0'1 mol of propane' 0.1 mol of methaneproduces

B

lebihbanyakhaba berbanding0'1 mol 0.1 mal metanamenghasitkan prapana. Propanehasthe lowestnumberof carbonatomsper molecule, P opana me mp u n y a ib i|a n g a n a t o mk a rb o n p e rmo |e k u l y a n g p a | i n g rendah

C

dependson the numberof oxygenatomsin the The heatof combustion molecule, bergantungkepadabilanganatom sesuafubahanapi Haba pembakaran oksigen dalammolekul'

D

when0.05mol of ethanolis burntin excess 6g.g kJ of energyis released oxygen. 68.8 kJ tenaga dibebaskanapabilaa.05 mol etanal terbakar lengkap dafam oksigenberlebihan.

40 Johor Negeri Pelajaran HakciptaJabatan 454111@7009

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151y1:

The production of soapcan be represented by the equationbelow. Pembentukansabunboleh diwakilidengan persamaanberikut. Fats/ Oils + Sodiumhydroxide) Soap + Glycerol Lemaldminyak + Natriumhidroksida ) Sabun + Gliserol Whichof the foilowingis true? Yangmanakahpenyataanyang benar? I

Glycerolis a typeof alcohol Gliserol merupakan sey'enr's alkohot

ll

The reactionis knownas Saponification Tindakbalasdikenatisebagaisaponifikasi

lll

Sodiumhydroxide is usedas catalyst

lV

Natriumhidraksidabeftindaksebagaimangkin Animalfatsor vegetable oilsarecommonlyused Lentakhaiwandan minyaksayuranbiasanyadigunakan

A

I and ll only I dan ll sahaja

B

ll and lV only ll dan lV sahaja

C

I and lV only I dan lV sahaja

D

l, li anOlV only l, il dan lV sahaia

E NDO F Q UE S T I O N PAPER KERTASSOALANTAMAT

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INFORMATION FORCANDIDATES MATLUMATUNTUKCALON 1 . T h i sq u e sti o np a perconsists of 50 qilestions. Kertassoalanini mengandungi5A soalan. 2 . A n sw e ra l l q u e stions. Jawabsemua soalan, 3 , E a ch q u e sti o ni s followedby fouralter native answer s, A, B, C and D. F or nnlv Rlr nkan \/^ur q u e sti o n , e a ch ch ooseone answer answeron th e objectiveanswersheetprovided. Tiapliap soalandiikutiolehempatpilihanjawapan,iaituA, B, C dan D. Bagi setiapsoalan,pilih satujawapan sahaja.Hitamkanjawapanandapada kerlasjawapan objektifyang disediakan. 4 . l f yo uw i shto ch a ngeyouranswerer , asethe blackened m ar kthaty ou hav e ma d e .T h e nb l a ck enthe spacefor the newanswer . Jika anda hendakmenukarjawapan,padamkantandayang telahdibuat. Kemudianhrtamkanjawapanyang baru, pr ovided 5 . T h e d i a g ra msi n thequestions ar e notdr awnto scaleunles ss tated. Raiahyang mengiringisoalantidakdilukismengikutskalakecualidinyatakan 6 . Y o u ma y u sea n on- pr ogr am m able scientific calculator . Anda drbenarkanmenggunakan kalkulatorsaintifikyang tidakbaleh diprogram.

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JU L ANGJOHOR2OO9 CHEM ISTRY PAPER1 ANSWER Q U E S T ION 1

2 3 4 5 6 7 I I

10

ANSWER

c

D A

B A B D

A D D

QUESTION

26 27 28 29 30 31 32

33 34 35

ANSWER A

B B

c

B A

B D B D

13

c c

14

A

36 37 38 39

15

A A

40 41

A C

A

42

D

B A A

43

A B A

11

12

16 17 18 19

2A 21 22

B

U

23

D B

24 25

c

B

44

45 46 47 48 49 50

C

D D

c

B A

D D D

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SULIT N am a

Kelas

JABATANPELAJARANNEGERIJOHOR

PEPERIKSAAN PERCUBAANSPM 2OO9 CHEM IST RY Kertas2 September

4541t2

2% jam Du aja m tiga puluh minit JANGANBUKA KERTASSOALANINI SEHINGGADIBER]TAHU 1. Tuliskannama dan tingkatanpada ruang yang disediakan. 2. Kertassoalanini adalahdalam dwibahasa. 3. Soa/andalam bahasalnggeris mendahuluisoalanyang sepadan dalambahasaMelayu.

UntukKegunaanPemeriksu Markah Diperoleh

I Markah

Bahagian Soat3n i ^ I renun

?

4. Calondibenarkanmenjawab keseluruhanatau sebahagian soalansarnaada dalambahasa lnggerisatau bahasa Melayu. 5. Calondikehendakimembaca maklumatdi halamanbelakana kerfassoalan ini.

3

T

5 o D

7

D

8 9

l0

r0 I l0 t0

i

t0 i0 20 2A 20 20

J u mla h

Kertassoalanini mengandungi 36 halamanbercetak

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2

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SectionA BahagianA [60 marks] 16Omarkah) Answerall questions in thissection. Jawabsemua soalandalambahagianini

Diagram 1,1 showsthearrangement of atomsin substance X andY. Rajah1.1di bawahmenunjukkan susunan atom-atom untukbahanX danY

X Substance BahanX (a)

Diagram1.1 Rajah 1 1

Y Substance BahanY

questions: Basedon Diagram1.1,answerthe following BerdasarkanRajah 1.1, jawab soa/an-soa lan berikut'. (i)

ldentifywhich o f t h e s u b s t a n cin e Dia g ra m1 . ' 1is a p u reme t a lo ra ll o y Tentukanbahanyangmanakahdalam Rajah1.1adalahlogamtulen

ataualoi. Puremetal Logam Tulen

[1 mark] [1 markah]

A lloy: Aloi

(ii)

[1 mark] [1 markah]

Explainyouranswersin (a) (i) Terangkanjawapan anda dalam(a) (i),

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3 (iii)

Whichsubstance is harder,X or Y? Give a reasonfor youranswer. Di antarabahanX dan Y, yang manakahlebih keras? Berikansafu sebabbagijawapananda.

[2 marks] [2 markah] (b)

Diagram 1.2 belowshowsthestructural formula of a polymer. Rajah1.2di bawahmenunjukkan formulastrukturbagisuatupotimer.

H

lil C-C- C

I

li

-c-

tll H

I

HH il

H

HH

C-C

CI HCI

C IH

Diagram1.2 Rajah1.2 Basedon Diagram1.2,answerthe following questions: BerdasarkanRajah 1.2,jawab soa/an-soalanberikut: (i)

Statethe meaningof polymer Nyatakanmaksud polimer.

[1 mark] [1 markah]

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SULIT (ii)

Draw and namethe structuralformulaof its monomer. Lukiskandan namakanformulastrukturbagi monomernya

[2 marks] [2 markah] (iii)

Stateone useof the polymerin Diagram1 2 in our dailylife Nyatakansatukegunaanpolimerpada Raiah1.2dalamkehidupan sehariankita. [1 mark] [1 markah]

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Diagram2.1 showsthe heatingcurveof solidnaphthalene, C,oHu. Rajah2.1 menunjukkanlengkungpemanasanpepejalnaftalena,C,rH,

T imeI s Diagram2.'1 Rajah2.1 (a)

(i)

Namethe processinvolvedin thisexperiment. Namakanproses yang terlibatdalam eksperimenini"

(ii) Statethetypeof particle present in naphthalene, CroHe.

11markl markah 11 l

Nyatakanjeniszarahyangterdapatdalamnaftalena, CtoHa.

11markl 11markah) (b) Explainwhy thereis no changein temperature fromB to C Terangkanmengapatiadaperubahansuhu dari B ke C

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SULIT particleschangesfrom C to D during (c) Statehow the movementof naphthalene heating. Nyatakan bagaimana pergerakan zarah-zarah naftalena berubah se/??asa pemanasandariC ke D.

t1 mark] 11markahl (d)

Diagram2.2 showsthe atomicmodelproposedby NeilsBohr. Rajah 2.2 menunjukkanmadel atomyang dicadangkanoleh Neifs Bohr.

Diagram2.2 Raiah2.2 i\ tJ

Name X a n dY. Namakan X dan Y.

X [1 mark] 11narkahj ii)

Whichsubatomicparticles areinvolvedin a chemicalreaction? Zarah-zarahsub-atomyang manakahterlibatdalam tindak balaskimia?

[1 mark] [1 markah]

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i

(e) Table2 showsthe numberof protonsand neutronsof four differentatoms. Jadual2 menunjukkanbilanganprotondan neutronbagi empat atom yang berlainan.

A.tom W

Numberof protons Bilanganproton

Numberof neutrons Bilanganneutron 17

to

X

to

4

z

20

19 Table2 Jadual2 Whichatomsare isotopes? Atom-atom yang manakahadalahisotop?

[1 mark] l1 markah) ii)

Givea reason foryouranswer in (e)(i). Berikansafusebabbagijawapan andadi (e) (i)

[2 marks] [2 markah]

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SULIT Table3 showspH valuesof different concentration of hydrochloric acid,HCI solutions. Jadual3 menuniukkannilai-nilaipH bagi larutan asidhidroklorik,HCI yang berbeza kepekatan.

Typeof sduilon Jenislarutan Concentration Kepekatan

Solution I LarutanI

0.1 mol dm'3

Solutionll Larutanll 0.0'1mol dm

So/sfion//i Larutanlll 3

0 001 mol dm-3

pH value NilaipH T a b le3 Jadual3 (a) (i)

Whichof the solutions in Table3 hasthe hiqhestconcentration of hydrogenions? Larutanyang manakahdalamJadual3 mempunyaikepekatanion hidrogen yang paling tinggi? l1 markl [1 markah]

(ii)

Calculate the numberof hydrogen ionsin 25 cm3of Solutiont l [AvogadroConstant= 6 x 1023mol-1 ] Hitungkanbilanganion hidrogendalam25 cm3Larutan ll. mol-' ] fNomborAvogadro= 6 x 1a23

[2 marks] [2 markah] [Lihat sebelah 454112 O 2009 HakciptaJabatanPelajaranNegeriJohor

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SULIT (iii)

canbe usedto measurethe pH valuesof the Namean indicatorthat l, ll and lll. solutions Namakan satupenunjukyang bolehdigunakanuntukmengukurnilaipH larutan-larutanl, ll dan lll.

[1 mark] markah] [1 (b) Solution I is usedto neutralise 25cmaof 0.1moldm-3of sodiumhydroxide, NaOHsolution. LarutanI digunakanuntukmeneutralkan25 cm3larutannatrium hidroksida. NaQH0.1moldm'3. (i)

NaOHin the the numberof molesof sodiumhvdroxide. Calculate solution. Hitungkanbilanganmol natriumhidroksida,NaOH dalamlarutan.

[1 mark] [1 markah] (ii)

sodiumhvdroxide, Calculate the volumeof SolutionI usedto neutralise NaOHsolutionin cm 3 . HitungkanisipaduLarutanI yang digunakanuntukmeneutralkanlarutan natriumhidroksida,NaOH dalamcm".

[3 marks] [3 markah]

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IO (iii) Drawan apparatus set-upfor the titratron of sodiumhydroxrde solution withsolutionI Lukts susunanradas untukpentitratanlarutannairiumhiciroxsida denganLarutanI

[2 marks] {2 narkahl

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II

of sodium to investigate the eiectrolysis Diagram4 showsthe set-upof apparatus chloridesolutionwith carboneiectrodes. Rajah4 menunjukkansusunanradas untukmengkajielektrolisislarutannatrium kloridadenganmenggunakanelektrod-elektrod karbon.

Testtube TabungUji

0 , 0 0 1mo ld m-3s o d ium chloridesolution larutannatium klarida 0.AU mol clms

Electrolytic C Se/ Elekfrolisis

ElectrodeP ElektrodP

Electrode Q Elektrod Q

Dia g ra m 4 Rajah4 (a)

Whatis the energychangein the electrolgic cellabove? Apakahperubahantenagadalamsel elektralisis di afas?

11markl [1 narkah] (b)

Writethe formulaeof all ronsoresentin sodiumchloridesolution. Tuliskanformulabagi semuaion yang hadtr dalamlarutannatriumklorida.

11markl markahl 11

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(i)

Namethe gas collectedat electrodeP. Namakangas yang terkumpulpada eleWrodP

[1 mark] markah] [1 (ii)

Howdo you identifythe gas collected in (c)(D? andamengesahkangasyang terkumpuldi (c)(i)? Bagaimanakah

i2 narksl [2 markahi (d)

(i)

P if the experiment is repeated Whatis the productformedat electrode using2.0 moldm " 3s o d iu mc h lo rid seo lu t io n ? Apakah hasilyang akan terbentukdi elektrodP jika eksperimenini di larutannatriumklorida2.a mot dm3? ulangidenganmenggunakan

(ii)

youranswer in (dXi). Explain

11mark) {1 markahl

jawapanandadi (d)(i). Terangkan

12marksl [2 narkah] (iii) Writethe halfequationforthe reactionat electrodeP. Tuliskanpersamaansetengahbagitindak balasdi elektrodP

11marl
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tr-1

Suggestone metalthatcan replacethe carbonelectrodes in thisexperiment to obtainthe sameresultas above. cadangkan satulogam yang boleh menggantikanelefirod karbon dalam eksperimentersebutuntukmendapatkankeputusanyang sama sepertidi afas.

11narkl markah] [1

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Table5 showsthe meltingpotntsand boilingpointsof somealkanes Jadual5 menunlukkantakatleburdan takatdidihbagi beberapaalkata

Alkanes Alkana

Me lt in g Numberof carbon p o in t atomspermolecule Takatlebur Bilanganatom (c) karbonper molekul

Pnir ,r l i nn uv ,'y

nn Pv

nt I r

Takat didih /o /r \

Ethane Etana

Table5 ladual5 questions (a) Basedon the datain Table5, answerthefollowing lan berikttt. Berdasarkandata dalamJadual5, iawab soa/an-soa

(i)

Plot a graph of boilingpoint againstnumber of carbon atoms per molecule. Plotkangraf takat didihmelawanbilanganatom karbonper molekul. [3 marks] [3 markah]

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l5

il*--*"-

i-,f, I

t.---i i

|a i ,t i* * - ' * ' " * "

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{ "".- *".*

- i" "- " "' - ' "".J.

" i ^ - . - ^ ".' -

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r,

, r i t

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SULIT (ii)

Explainwhy the boilingpoint of alkanesincreasesas the numberof increases. carbonatomsin alkanesmolecules Terangkanmengapatakatdidihalkanabertambahapabilabtlanganatom karbonper molekulalkanabertambah.

[1 mark] [1 markah] (iii) Givethe physicalstateof hexaneat roomtemperature Eerikeadaanfizik heksanapada suhu btlik.

[ 1 mar k t markah] [1 (b) Draw all of the structuralformulaeof isomersfor alkanesJ and name the system. isomersusingIUPACnomenclature Lukiskansemua formulastrukturisomerJ dan namakanisomernya mengikut sisfemIUPAC.

[4 marks] [4 markah]

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l7

A pupilcarriedout an experimentto investigate a redoxreaction.Diagram6.1 showsthe set-upof apparatus usedin the experiment. seorangpelajarmenjalankansatueksperimenuntukmengkajitindak balas redoks. Rajah6.1 menunjukkansusunanradasyang digunakandidalam eksperimen ini.

Ca rb o ne le c t ro dY e Elektrodkarbon Y

Carbonelectrode X ElektrodkarbonX

lro n(ll) s u lp h a t e s o lu t io n (ll) Larutanferum sulfat

Bromine water Air Eromin U Tube TiubU

S u lp h u ric A c id Acid Sulfurik Dia g ra m 6.1 Ra ja h0 . 1

(a) Nameone substance thatcanreplacebrominewaterin this experiment Namakansatubahanyangbolehmenggantikan air bromindalam eksperimenini,

[ 1 ma rk ] ntarkah] [1 (b) lf the experiment is repeatedusingcookingoil to replacesulphuric acid the galvanometer doesnots h o wa n y re a d in gE. x p la inwh y . Jika eksperimenini diulangidenganmenggunakanminyak masak menggantikanasid sulfurik,galvanometertidakmenunjukkanbacaan. Terangkanmengapa.

[ 1 ma rk ] markah] [1

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Y is as below (c) The halfequationof the reaction at electrode Persamaansetengahtindakbalasyangberlakupada elektrodY adalah sepertidi bawah. Fe2*+Fe3' + e (i)

Statethe colourchangeof iron(ll) sulphatesolutionin this reaction Nyatakanperubahanwarnalarutanferum (ll) sulfat di dalamtindak balasini. [ 1 ma r k ] [1 markah]

. a tis me a n tb y o x id a t io n (ii) Thisreaction n a c t io nWh is a n o x id a t iore transfer? reactionin termsof electron Apakahyang Tindakbalasini adalahtindakbalaspengaksidaan. pengoksidaan dari segi dengan balas tindak dimaksudkan nemindahanelektron?

[1 mark] [1 markah] Y. (iii) Namea reagentto identifyFet*ion producedat electrode Namakansatureagenuntukmengenalpastiion Fe3.yang terhasil pada elektrodY.

[1 mark] markah] [1

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l9

( d)

Zincpowder Serbukzink

Glassrod Rodkaca

C o p p e(lr l )su l p h a te so l u ti o n LarutanKuprum(ll) sulfat Dia g ra m 6.2 Rajah6.2 ln anotherexperiment, excesszincpowderis addedto 25 cm3of 0.2 mol dm -3of copper(ll) sulpha t e s o lu t io a n s s h o wnin Dia g ra m6 . 2 .T h e s o lu t io n is stirreduntilthereis no colourchangein the solution. The solutionis filteredand the filtrate,M is pouredintoanotherbeaker. Dalam eksperimenyang lain, serbukzink berlebihandi tambahke dalam25 cm' larutankupurm(ll) sulfat0.2 moldm'3 sepertiditunjukkandalam Rajah 6.2. Larutanitu dikacausehinggatidakada perubahanwarnapada larutan itu. Larutanitu diturasdan hasrlturasan,M dituanqkanke dalamsebuah bikaryang lain. (i)

Namethe filtrateM. NamakanhasilturasanM.

[ 1 ma rk ] [1 markah] (ii)

Writea balancedchemicalequation for this reaction. Tuliskansatupersamaan kimiayang seimbangbagi tindakbalasini,

[ 1 ma rk ] [1 markah]

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SULIT (iii)

numberof copperin thisreaction. Statethe changein the oxidation kupruntdalamtindak pengoksidaan Nyatakanperubahannombor balasini. [1 mark] [1 narkah]

(iv)

the numberof molesof copper(ll) sulphatein the solutton Calculate Hitungkanbilanganntol larutankuprum(ll) sulfat clalamlarutan.

[1 mark] [1 markah] (v)

the massof zincsulphateproduced. Calculate = = = a [Relative t o micma s s : Z n 6 5 ,S 3 2 ,O 1 6 ] Hitungkaniisimzink sulfatyang dihasilkan. = = [Jisim atom relatif:Zn = 65, S 32, O 16]

[1mark] markah] [1

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2l SectionB Bahagian B l2Qmarks] [20 markah] Answerany one questionfromthis section, Jawab mana-manasatu soalandaripadabahauianini.

(a) Diagram7.1 showsan apparatus set-upto determine the empiricalformula of magnesium oxide. Rajah7.1 menunjukkansusunanradasuntukmenentukanformulaempirik maanesiumoksida.

Magnesiumribbon Pita magnesium

Dipanaskan Dia g ra mT . 1 Rajah7 1

(i)

Duringtheexperiment, we needto raisethe lid a littleat intervals.Whv? Ketikaeksperimendijalankan, kitaperlumembukapenutup sekalisekala. Mengapa? [2 marks] [2 markah]

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LL

tne empirical to determine (ii) Table7 showsthe resultsfor the experiment o x id e formuiaof m a g n e s iu m keputusanbagisafueksperimenuntuk Jadual7 ntenuniukkan bagimagnesittntoksicla empirik menentukanfarmula

+ lid i *ur. of crucible l,Lisimmangkukpijar+ penutup

I

28.2ag

+ lid+ ma g n e s iu m rib b o n Massof c ru c ib le I Jislmmangkukpiiar+ penutup+ pitamagnesLtm + lid + ma g n e s iu m o x io e t Massof c ru c ib le oxrde i Jisimmangkukpijar + penutup+ magnestLtnt T a b le7 Jadual7

322a9

formulaof the empirical Basedon the resultsin Table7, determine oxide. magnesium = = a t IRelative o micma s s : Mg 2 4 , O 1 6 ] BerdasarkankeputusandalamJadual 7, tentukanformulaempirikbagi magnesiumaksida. = = IJisim atornrelatif: Mg 24 , O 16]

marks]

,*[5 p marKanJ

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SULIT (b)

13 Diagram7.2 showsan apparatus sefup to determine the empirical formulaof copperoxide. Rajah7.2 menunjukkansusunanradasuntukmenentukanformulaempirik kuprum oksida.

Copperoxide Kuprum oksida

Hydrogengas Gashidrogen

i----l*li ti VAI ,,/A IAl

I

t

Heat Dipanaskan

I

PartB Bahagian B

PartA BahagianA

(i)

Dia g ra m7 . 2 Rajah7.2

comparethe methodusedin experiment in Diagram7.2 withDiagram7 1 Bandingkankaedahmelakukaneksperimendalam Rajah7.2 dengan kaedahdalam Raiah7.1. [4 marks] [4 markah]

(ii)

Statethe reactants gas in PartA. to producehydrogen Nyatakanbahan-bahanuntukmenqhasilkangas hidrogendi BahagianA. [2 marks] [2 markah]

(iii) Writethe chemicalequation for the reactionin PartA. Tuliskanpersamaankimiauntuktindak balasdi BahaqianA

[1m ar k ] 11markahl

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)A

that mustbe takenin PartB (iv) Statethreeprecautions your answer. Explain Nyatakantiga langkahberiaga-iagayang mesticliambildalamBahagianB. TerangkaniawaPananda. [6 marks] [6 markah]

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SULIT I

(a)

l>

Saltscan be classified intosolubleand insoluble salt. Garamboleh dikelaskankepadagaramterlarutkandan garam tak terlarutkan. (i)

Nameone exampleof an insoluble chloridesalt. Namakansatu contohgaramkloridatak terlarutkan. [1 mark] [1 markah]

(ii)

Namethe chemicals neededto preparesaltin (a) (i) and namethe reaction. Namakan bahan kimia yang diperlukanuntuk menyediakangaram di (a) (i) dan namakantindak balasitu. [3 marks] [3 markah]

(b)

DiagramI showsa flowchartof the qualitative anaiysisof substance X. Rajah 8 menunjukkancartaalir analtsiskualitatifbagi sebatianX.

BlackpowderX SerbukhitamX Add hydrochloric acid,HCIsolution Tambahlarutan asid hidraklorik.HCI

Bluesolution Y Larutanbiru Y SolutionY + Silvernitrate, A g N0 3s o lu t io n

Solution Y + Sodium hvdro> NaOHsolution LarutanY + larutannatrium hidroksida.NaOH

Larutan Y + Larutanargentum nitrat,AgNO,

Whiteprecipitate Mendakanputih

Diagram8 Rajah I

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the Basedon diagramB, identifY Berdasarkanraiah B kenal Pasti

(i)

BlackpowderX SerbukhitamX Y Bluesolutron Larutanbiru Y Cationand anion of Y solution Kationdan anionlarutanY [4 marks] ll rnarkahl salt' an ionicequationfor an insoluble is carriedoutto construct An experiment lead(ll) chromate(Vl) (ll) nitrate,Pb(NO3)'? A fixedvolumeof 5.00cm3of 1.0moldm'3lead soiutio n is p la c e o in t o e a c h o f t n e E t e s t t u b e s o f t h e s a me s i z e ' soiutton chromate(Vl),KrCrO+ votumeof 1.0moldm'3potassium . Different is addedto eachtesttube rTheheight o f t h e y e llo wp re c ip it a t e , le a d (ll)c h ro ma t e (V l ) f o r m e d i n t o recordedand plottedin Graph8' eachtesttubeis measured,

.

t iotl ttrttukgaranttaK ttntttkmembtnalsersarttaa Safueksperimen dtialankan plumbum(l!) kromat(Vl)' terlarukan, . . t

nttratP1(NO'), lslpadutetapS.A0cm31.0moldm4lartianplttnnum(ll) s€;l diisikanke dalamsefiapB tabttnguityang s€/rrd 1 0 mol dm-3 (Vll lsipaduyang berbezalarutanXalium'kroitat KzCrOu ke dalamsetiaptabunguii diiambahkan kuningplumburr(il; krontat1V|)yang terbentukdatam Tinggimenctakan sefiapt a b L ln g u jic liu k u t ' c lt re k o d c la rlc lip |o t c la |a rn G r a f B ,

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Heightof lead(ll) chromate / cm ffl) precipitate Tinggimendakanplumbum (ll) kromat(Vl) / cm

l234 I

-*;

.l;ll 't

I

rri l

.l

i- - ij

chromate Volumeof potassiunr (V l)s o lu t io nK, z CrO/qc m 3

1

lsipadularutankalium kromat(Vl).KrCrO"/ cm3

Graph8 GrafI

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SULIT Basedon Graph8 EerdasarkanGraf I (i)

Calculate Hitungkan .

The numberof molesof lead(ll) ionsused' Bilanganmolion ptumbum(ll) yang digunakan

r

chromate(Vl)thathas reacted The numberof molesof potassium (ll) nitrate lead of cm3 5.00 with completely Bilanganmol kaliumkromat(vt) yang bertindakbalasseiengkapnya dengan5.00cm3plumbum(ll) nitrat' [4 marks] [4 markah]

(ii)

an ionicequationfor the formation Basedon the answerin (c)(i),construct of lead(ll) chromate(Vl). Berdasarkan iawapan anda di (c) (i), binapersamaartian untuk pembentukanplumbum(ll) kromat(Vl)' [2 marks] [2 markah]

(iii) E xplainwh y TerangkanmengaPa andthenremalnconstant formedincreases The heightof precipitate Tinggimendakanbertambahdan kemudianntenjadimalar' The colourchangein the solutionabovethe precipitate Perttbahanwarna larutandi bahagtanatasmendakan' The eighttesttubesusedare of the samesize' tabunguiiyang digunakanadalahbersaizsama. Kelapin-lapan [6 marks] [6 markah]

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SULIT

SectionC Bahagian C 120marks) [20 markah] fromthissection. Answeranyone question soalan Jawabmana-manasatu daripadabahagianini of threeelements X, Y and Z. Diagram9 showsthe atomicstructure Rajah9 menunjukkanstrukturatom bagi tiga unsur X, Y dan Z.

XY Dia g ra m9 Rajah 9

\ d/

Basedon Diagram9, two typesof compounds can be formed. Explainthe differences betweenthe two compounds formedin termsof . Typesof chemicalbonds,and . B oilingand me lt in gp o in t s . BerdasarkanRajah9, duajenis sebatianboleh terbentuk. Terangkanperbezaandt antaradua sebatiantersebutdari segi t jenisikatankimiayang terbentuk,dan . takat lebur dan takatdidihnva. [4 marks] [4 markah]

(b)

of the compound formedbetweenX and Y Drawthe electronarrangement and explainthe formationof the compound Lukiskansusunanelektronuntukpembentukansebatiandi antaraX dan Y, dan terangkan pembentukansebatiantersebuf, [6 marks] [6 markah] [Lihat sebelah

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SULIT (c)

30 P and Q substances' You are gtventwo samplesof clremical and Q is an ionic Bothof themarewhitesolids P is a covalentcompound comP ound. of P conductivity the electrical to investigate experlmenl Describea laboratory in youranswer' and Q. lncludethe observations substanceP and substanceQ eaih for Suggesta suiiaLteexample Andadiberidua sampetbahankimia,P dan Q' adalah Kedua-duanyanerwLrnaputih.P adalahsebatiankovalendan Q sebatianion. arus elektrik Huraikansafu eksperimenmakmaluntukmengkajikekonduksian dalam yang diperolehi lawapan sebatianP ctanQ. Serfakanpemerhattan anda. Cadangxansatu c o n t o h y a n g s e s u a ib a g is e t ia p b a h a n P d a n b ah a n Q , [10 marks] 110markahl

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10

(a)

fl

.)l

in Methane,CHois commonlyusedas a fueland is the maincomponent naturalgas. liquified The heatof combustion of methaneis -898kJ mol-' Writethe chemicalequationfor the completecombustion of methane. g of heat released Calculate the amount when1 of methaneis completely burntin air. atomrcmasso f C= 1 2 ,H= ' l, O = 1 6] [Relative Metana,CH+adalahbahan api yang biasadigunakandan ianya adalah kompanenutamayang terdapatdalam gas as/i cecair. Haba pembakaranmetanaadalah -898kJ mof', Tuliskanpersamaankimiabagi pembakaranlengkapmetana.Hitungkan jumlah haba yang dibebaskanapabila1 gram metanaterbakardengan lengkapdalam udaraberlebihan. lJisimatomrelatif: C=12,H=1,O=16l 14marksl [4 markah]

(b)

DiagramI 0.1 and diagram10.2showtwo energyleveldiagramsof reactions Rajah10.1dan 10.2menunjukkan dua gambarrajah arastenagatindakbals kimia.

Energy Tenaga

C+ D

Dia g ra m1 0 . ' 1 Rajah14 1

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Energy Tenaga

R+ S

10.2 Diagr am Raiah10.2

in termsof changesof energy compareand contrastDiagram10,1and 10.2 changefor the reactions content,heat changeand i-hetemperature B andingkanda n b e z a k a n Ra ja h l0 . ld a n la ' 2 d a ris e gtindak ip e rubalas b a h an dalam perubahansuhu kandungantenaga,p")irauiin habadan tindak balasini

[6 marks] i6 markahl

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SULIT (c)

JJ

of fourtypesof alcohol. Table10 showsthe heatof combustion Jadual 10 di atasmenunjukkanhabapembakaranbagi empat jenis alcohal

Nameof alcohol Nama Alkohol

Relative molecular mass

Molecular formula Formula Molekul

Heatof combustion Haba Pembakaran

Jisim atom realtif

/ kJ mol'1

Methanol Metanol

CH30H

JZ

- 725

Ethanol Etanol

C2H5OH

4+O

1 376

Propanol Propanol

caHToH

OU

2 015

B utan-1-ol Butan-1-ol

c4HeoH

74

-2 6 7 6

T a b le1 0 Jadual10 UsedatafromTable10,drawthe graphof magnitudeof heatof combustion againstnumberof carbonatoms. Basedon the datafromTable10 andthe graphplotted, (i) for the givenalcohols. statethe changein the heatof combustion your (c )(i). (ii) in a n s we r explain datadariJadual10, lukisgraf magnitudhaba Denganmenggunakan pembakaranmelawanbilanganatom karbon. Berdasarkandata dari Jadual 1Adan graf yang di plotkan, (i) nyatakanperubahanhabapembakaranbagialcoholyang diberikan. (ii) terangkanjawapan anda dalam(c)(i)

[10marks] [10m ar kah] E N DO F Q UE S T I O N PAPER KERTAS SOALA,VTAMAT

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34

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STJLIT N a ma

Kelas

JA B A T A NP E L A J ARAN NEGERI JOHOR

PEPERIKSAANPERCUBAANSPM 2OO9 C H EM ISTR Y Kertas 3 S e p te m b e r

1s4u3

":'/z1am S a t u ja m ti ga p u luh minit

JANGAN BUKA KERTASSOALA]\ INI SEHINGGA DTBEII.ITAHLI 1

Tttliskarr nama dan tingkatanpada ruangyang disediakan.

2. Kerfassoa/ariini adalahdalant dwibahasa. 3

Sc;alanrlalam bahasalnggeris rnenclahttlui soalanyang sepadan dalam bahasa Melayu.

4. Calon dikehendakimembaca maklumatdi halaman belakang kertas soalanini.

Kertassoalanini mengandirnci 1I halarnan bercetak

1 5 4 1 / 3 O J abat arPr e l u i a l a n \{ e s e l i J o h o r

I L ih a f s e b e la h S UL I T

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SULIT Jawabsemua saalan. 1 Thealkalimetalsin Group'1of thePeriodic Tabteof Elements canreactwithoxygen gaswithdifferentreactivity. Table1 showstheexperiment andobservation whenLithium, Li,Sodium, Na and Potassium, K reactwithOxygen, 02 gas. LogamalkalidalamKumpulan1 JaduatBerkalalJnsurbolehbertindak balasdengan gas oksEendengankereaktifanberbeza. Jadual1 menunjukkan eksperimen danpemerhatian apabilaLitium, Li, Natrium,Na danKalium,K bertindakbalasdengangasoksigen. Experiment Eksperimen

Ga sj a r Balanggas Oxygengas Gasoksigen L i th i u m Litium

-_-JL TItT-

Ga sj a r Balanggas

lll+| )^'tilI

Oxygen gas

ttr+-

l__1,

Observation Pemerhatian Lithiumburnsslowlywith a red flame. Whitefume rs released. Whitesolrdis produced. Litium terbakarperlahan-lahandenean nyalaanmerah.

Wasapputihdi bebaskan. Pepejalputihterhasil. Sodiumburnsvigorously witha yellowflame Whitefumeis released. Whitesolidis produced.

Sodium Natrium

Natriumterbakarcergasdengannyalaan kuning. Wasapputihterbebas Pepejalputihterhasil.

Ga sj a r Balanggas

Potassium burnsveryvigorously witha reddish-purple flame. Whitefumeis released. Whitesolidis produced.

Oxygengas Gasoksigen Potassium Kalium

Kaliumterbakarsangatcergasdengan nyalaan ungu-kemerahan. Wasapputihterbebas. Pepejalputihterhasil.

Table1 Jadual 1

454113O Jabaran Pelaiaran NegeriJohor

SULIT

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.)

SULIT

in Table1. (a) Statethe inference forthe observations dalamJadual1 Nyatakaninferensbagipemerhatian-pemerhatian

i ' :t

[3 marks] 13markahl (b)

Basedon the experiment above: Berdasarkan eksperimendi atas: (i)

thevariable. Statethe methodto manipulate Nyatakankaedahuntukmenanipulasipembolehubah

variable. Statethe responding Nvatakanpentbolehubah bertindak balas.

(iri)

variable. Statethe controlled

r:-

dimalarkan Nyatakanpembolehubah

I

t--

I I

[3 marks] 13markahl for the experiment. (c) Statethe hypothesis tlyatakanhpolesis bagi eksperimentersebttt [3 marks] 13narkahl (d)

betweenalkalimetalswithoxygen,gtvet h e By refering to the reaction of alkalimetals. reactivity for the definition operational Merujukkepadatindak balasantaralogamalkalidenganoksigen,berikan alkali. definisisecaraoperasibagi kereadifanlogam-logam [3 marks] 13markah)

NegeriJohor Pelajaran 4541/3 O Jabatan

ILihat sebelah SULIT

l(d)

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SULIT

4 AlkalimetalX ignitesspontaneously in air with a reddish-violet flame.White fumesand a whitesolidarealsooroduced. LogamX juga adalahmerupakanahliKumpulan1. LogamalkaliX terbakarsecaraspontandi udaradengannyalaanungukemerahan.Wasapputihdan pepejalputihjuga terbentuk. (i)

1(eXi)

r--= I

Predictin whichperiod,themetalX is locatedin the Periodic Tableof Element. Ramalkan Kala,loqamX diletakkandalamJadualBerkala lJnsur.

irl

[ 3 ma r k s i 13makaa", (ii) Basedon the observations in Table1 and (e)(i) , arrangelithium, sodium,potassium andmetalX in ascending orderof reactivity of metalstowardsoxygen. BerdasarkanpemerhatiandalamJadual1 dan (e) (i) , susunlitium, natrium,kaliumdan logamalkaliX mengtkuttertibmenaik kereaktifanlogam terhadapoksigen.

1 ( e Xi i ) I Itt* l

r---lrl

[ 3 mar r s i f3 markan'

(0

0.2g of sodiumwillt a k e1 8 s e c o n d s t o b u rnc o mp le t e in ly o x y g e ng a s . 0.5g of sodiumwilltake45 seconds to burncompletely in oxygengas. Statethe relationship between the massof sodiumandthetimetakenforthe metaltoburncompleteiy in oxygengas. 0.2 g natriummengambilmasa18 saatuntukterbakarlengkapdalamokstgen gas. 0.5 g natriummengambilmasa45 saatuntukterbakarlengkapdalamokstgert rYz a

ittyatakan hubLtngan antarajisimnatriumdan masayang diambiluntuk logan itu terbakarbertindakbalaslengkapdalamoksigengas. l(0 I Itt-{

r--t t3 l

[3 marks] 13markahl

4541/3 O Jabatan Pelajaran NegeliJohor

SULIT

papercollection

SULIT Ex amtncr

Whenthereaction in Table1 is completed , 10 cm'of wateris pouredintothegas jar.A pH meteris dippedintothesolution formed. Table2 showsthe pH meterreading.

[,s E

Apabila tindak balas dalam Jadual 7 selesai, 10 cm?air dituang ke dalam balang gas Meter pH drcelupke dalam larutan yang terbentuk.

iadual 2 n.enunjukkan bacaannteterph. I

_

10.554

G a sja r ll Balanggasll

G a sja r lll Balanggas lll

Water Air

Water Air

Reading:. . Bacaan

Reading Bacaan

T a b le2 Jadual2 (g) Recordthe pH meterreading to onedecimalplacein Table2.

1(e)

RekodbacaanmeterpH dengansatutempatperpuluhan dalamJadual2. [3 marks] 13markahl

Pelajaran 454113o Jabatan NegeriJohor

ILihat sebelah SULIT

t-; I I3l

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For Examiner's [,sc

SULIT (h) Writetheobservations whenbluelitmuspaperandrecjlitmuspaperaredipped intothesolution forme din G a sJ a rI , G a sJ a rll a n dG a sJ a r lll. Tuliskanpemerhatian apabtla kertaslitmus biru clanmerah clicelupke dalam larutan yang terbentuk dalam Balang Gas 7, Balang Gas /l clan Balang Gas il/ '-T-

S olutions Larutan-larutan

Redlitmuspaper Kertaslitmusmerah

I :

Btuelitmuspaper Kertaslitmusbiru

GasJar I BalangGasI GasJarll BalangGas l/ Gas Jar lll Balang Gas ///

[3 marks 13markah': (i)

Writethe balanced chemical equations for thereaction: Tulispersamaankimiayang seintbang untuktindakbalas (i)

Betweenalkalimetalandoxygengas(chooseonlyonefromTable1): Di antaralogamalkalidangas oksigen(pilih satuctaripada Jadual1).

(ii) Between the product formedfrom(i)(i)andwater Di antarahasilyangterbentukclaripada (i) (i) tlan air [ 3 ma rk s l 13markahl

451113O Jabatan Pelajaran NegeriJohoL

SI;LI'f

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STJLIT

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Classify thefollowing alkaline solutions intostrongalkaliandweakalkali. Kelaskanlarutan-larutan alkailberikutkepaclaalkalikuatdan atkalilemah. Sooiumhydroxide, NaOH

A mmo n ia s o lu iio nNH. ,

Natrium hidroksida,NaOH

Larutanammonia,NH3

Potassrum hydroxide, KOH

Ca lc iu m h y d ro x id e , (O H)r Ca

Kaliurnhidroksida,KOH

Ka!sium hidroksida, Ca(a Fl),

[3 marks] 13rnarkaltl

45{l/J

e Je hma nl ) elir jir r ' : \reper n ' i J olr or

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!:riirt rrt;,'

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SLTI,TT li.roniiner's [,,.se

2

Reaction| ! 'findak balasI t-

j Reactionbetweensodiumthiosulphate, NazSzO:, soiutionand dtlutesulphuric FJ2SC4 produce acic, will sociir.lni sLrlphate NazSOr sulphur,S, sulphurdioxide i -l-hechemicalequationis. I SO, and water',t-lzC. Tindak balas antara larutannafriumtiosutfat,fuazs:o: clan asiclsulfurikcair H2SO1akan menghastlkannatriumsu/fal Na:Sao suifur, S, sulfur drbksrda SO dan air, H20. Persarnaankimia adalah. N a rS 2 O3 + H rS Oq )

N arS O, * S + S O, + 1-1rg

Reactionll I Tindakbalasll

I R"**;

t- ^ ,

n"tr"*n f,VO..nf f-fCmnOtr.-Z- *lmro,f l,." rr..nr"= o* aciO.

eqJatrons I ZnCl2and hycrogengas, Hr.The chemicar

I I

I I Tindak balas antara asid hidroklorik, HCl dan zink, Zn akart rnenghastlkan zirli<

I klorida,7-nCl.tdangas hydrogen,H2. Persamaanktmia aclalal'r

I

zHCt+ zn ) Znct,+ 2,

I

By usingtheinformation of Reaction I or Reactron ll planan experrment to tnvestigate theeffectof temperature on therateof reactionYourplannrng shoulc include: DenganmenggunakanmaklumatTindakbalasI atau Tlndak balas ll, rancang sa:,., eksperimenuntukmengkajikesansuhu ke atas kadartrncJak balas.Perancangan anda hendaklah rnengandungi: (i)

Problemstatement Pernyataanmasalah

(ii)

All the variables Semuapembolehubah

(iii) Hypothesis Hipofesis (iv) Listof materialand apparatus Senaraibahan dan alat radas (v)

Total )

Procedure Prosedur

(vi) Tabulationof data Penjadualandata 117marksl 117markah) END OF QUESTION PAPER

1511/3 O -lirbatanfelajarnrr\cscri .lohor

SULI'I'

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to statethe

Ru b ric correctly

FE*

::

Sampleanswer: (of alkalimetalswithoxygen)increase The reactivity from lithiumto potassiu m. // Lithium, sodiumandp o t a s s iu m / a lk a lime t a lss h o ws imila r chemicalin theirreactions withoxygen. Able to statethe inferencelesscorrectlv. Sample D a m p l e answer a n s w e [. The reactivity increase// All metalsburnsproduced whitefumeandwhitesolid// GoingdowngroupI the reactivity increase. Able to stateany idea of inference. S ampleanswer: Lithium, sodiuman d potassiumshowdifferentreactivity // P otassium, S odium,lit h iu m lncrease tVoresponseor wrongresponse

papercollection

Ablets state the$ee variabl@rectl y: 1. Methodt&anipa-b!.evdfnble. -,

'*:

2 Theresffiding tffianrc.

3. The con{reltedvariable. S ampleanswer: (i) Use different 1) metals typesof (alkali)/(group (ii) Reactivityof metalswith oxygen// gJthe reactionbetweenmetalsand Vigorousness il oxygen. (iii) Oxygengas/7size/ mass"ofmetal Able to stateany two variablescorrectly: Able to stateany one variablecorrectly No responseor wrongresponse

l0

papercollection

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.:i:l1i:-:l1Ei

1 ffi,:-

between correffily | nArcfo sfafetherdiffionship + I Sampleanswer: -,:. down/up) of metalin)/(Going the positron I (fne lower/higher with in reaction is the metal reactive I Group1, the more/less oxygen.// the positionof metalsin group1, the The lower/higher is the reactivity. lower/higher The metalwhichis lo,iter/ upperin Group1 is more/less oxygen.// I reacttvein reactionvvtth the metalin Group1 the more/less The lower/higher withoxygen. the reactton reactive Abteto statefhe relationshipbetweenthe manipulated variableand the respondingvariable. Sampleanswer: for the reactionbetweenalkalimetals increases Reactivity going downGroup1i fromiithiumto when oxygen and potassium. // down/up) of metalin)/(Going the position (Thelower/higher // reactive. Group1. the more/less in Group1 is more/less The metalwhichis lower/upper reactive// the metalin Group1 the more/less The lower/higher // reaction. the reactive the lowerthe positionof the the reaction, The morereactive metalin Group1 Able to statethe idea of hypothesis. SampleAnswer: Metalsin Group1 can reactwithoxygen.// reactivity. Alkalimetalshavedifferent No responseor wrongresponse

papercollection

dEtrI

(d)

definitions6su@ly by

:_

-

vigorously/ more vigorous/ reactivet-withoxygen more/ highlyreactive

S amoleanswer: An alkalimetalthatreactsmorevigorously withoxygenis a morereactivemetal. ;

Ableto gtv;Th; op any two of the informationabove. Sampleanswer: The metalthatreactsmorevigorously withoxygenis a more reactivemetal./i The alkalimetalthatreactsmorevigorously is a more reactivemetal.// The higher/lower the alkalimetalsthe more/less reactive metal Able to give the operationaldefinitioncorrectlyby stating any one of the informationabove. Sampleanswer: Alkalimetalscan reactwithoxygen.// Metalscan reactvigorously withoxygen. No responseor wrongresponse

papercollection

n1teto make a predictionof the positionof metalX in Group 7 /ess accurately. Sampleanswer: l/ Below/underpotassium Lowerthan potassium Able to make any preclictionof the positionof metalX in

Group1. answer: Sample Li/Na In group1 // UpperthanLi/Na/Kll Lowei'than No responseor wrongresponse

II

papercollection

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iGE lg-

1#r ,EiG*'

(eXii)

theme ,Ahleto arrd.gjie theirreactiW = Sampleanswer: X ll L i,Na ,K , X S odium,P ot a s s iu m, Lithium, Able to arrangeany threeof the metalsin ascending order based on theirreactivitv. Samoleanswer: X , Li, Na, K ll NaLi,K ,X 7

Li, K , Na .X ll Na, K . L i, X ll

K , L i, Na ,X t l L i X Na , K

Able to arrangeany two of the metalsin ascending order based on theirreactivityor arrangein descending order. S ampleanswer: X ,K Li,Na ll X L i. Na . K / / K. X, Na, Li ll X, Na. K, L-i ll X K ,Na Li ll

I No responseor wrongresponse

K . X , Na , L i Na ,K , L i , X

papercollection

the Able to sfafeffie relationshiiffietween and the \ilnsffien foffiie metalt6'burn n Y\/r \o n

-

.

n2q

of sodium tn

ff

+ ..-. the higherthe mass/ the biggerthe the longerthe time taken burn completely

Sampleanswer: of metals,the longerthe timetakento The higherthe,nrass burncompletel[// of metals,the longerthe timetakento The biggerthe-stze burncompletely. Able to statethe relationshipbetweenthe mass of sodium and the time takenfor the metalto burn completelyin oxygengas. S ampleanswer: The higherthe massof metalsthe longerthe timetaken i/ // Moremassmoretimeto burncompletely Abte to statethe relationshipbetweenfhe mass of sodium and the time takenfor the metalto burn completelyin oxygengas. Sampleanswer: Biggermassburnslonger.// The metalsneedslongertime // Moremassmoretimeto burn. ] No responseor wrongresponse

papercollection

1 (g)

rd allthe reaCingswithor@ecimal

=i

Able to recordany two readingswith one decimalplace accuratelv. 2

S ampleanswer:

1 0 1 ,1 0 .61, O.8 i l 101,105,1g€_/

10.0,19i- l- 0.9 I

Able to recordat leastone readingwith one decimalplace accurately. S ampleanswer: 101// 106 il 109 No responseor wrongresponse

,-

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fo sfa@servations for blueandffi litmus nnrrar,flrt vvttvvLt)t.

.ffi .G

€ .='

=:'

Sampleanswer: S olutions GasJar I GasJar ll GasJar lll

Redlitmuspaper Turn sb lu e Tur n sb lu e Turn sb lu e

B lu elit mu sp a p e r No c h a n q e No c h a n q e No chanqe

Able to stateany one of the litmuspaper observat'rons

S olutions

Re dlit mu s

GasJar lll

i Turn sb lu e

GasJar ll GasJar lll

, Tur n sre d I Tur n sre d

B lu elit mu s

Able to give an idea on litmuspaper obseruations. Samoleanswer: S olutions

Redlitmuspaper No c h a n g e

GasJar ll GasJar lll

No responseor wrongresponse

B lu elit mu s T u rn sb lu e

Tur nsblue T u rn sb lu e

':::

papercollection

fr .:ll -a .g

'=

a

1 (i) .:--

Able to writetwo chemicalequationswith correctchemical formula€nutnot balanced// Anv one of the two balanced chemiC-a t equations'for the re ac't ion accu rateIy. Samoleanswer: Na ii.

Na 2 O a n d

C -2 )

Na2O + HzO

)

ll

2 Na rO

02)

ii.

NaOH

NarO + HzO )

ll

2 Na O H

Able to give at least one chemicalformulaeof the subsfancescorrect// Able to writeany one of the two chemicalequationswithcorrectchemicalformulae but not balanced. Sampleanswer: i.

Na

ll

Oz

ll

Na2O

ii. NazO ll H2O ll

NaOH

't" Oz )

NazO

ii. Na2O + HzO )

NaOH

i.

Na

and

ll

No responseor wrongresponse

l0

papercollection

'= 5

1 (i)

Able to@ssify all alk

soiufions

e

aliffirectly. Sampleanswer: / NaOH, Strongalkali: Sodiumhydroxide hydroxide / KOH Potassium Calc iu mh y d ro x id/eCa (O H), , W eakalkali : A mmo n ias o lu t io nNHs Able ta c/63slfyany two of strongalkaliand one weak alkali correctly.Sample**"r, S trongalkali: S odiu mh y d ro x id/eNa O H, / KOH Potassium hydroxide Weakaikali : A mm o n ias o lu t io /nNH: Able to classifyany one of strongalkaliand weakalkail correctly. Sampleanswer: / NaOH// Strongalkali. Sodiumhydroxide hydroxide IKOH ll Potassium Calciumhydroxide I Ca(OH)zll Weakalkali : A mmo n ias o lu t io /nNHo No responseor wrongresponse

ll

papercollection

?

vc thc statemenf of

se is in questionform. Sampleanswer: Doesthe temperature of sodiumthiosulphate solutionaffect the rateof reactron? ll Howdoesthe temperature of sodiumthiosulphate solution affectthe rate of reaclion?ll Howdoesthe high/ low temperat[reo f s o d iu mt h io s u lp h a t e solutionaffectthe rateof reaction? Able to give the statementof the problem lessaccurately. Responsein questionform. S amoleanswer: Doesthe increase / decreasein temperature increase/decrease ihe rateof reaction?// Howdoesthe increase/decrease in temperature affectthe rateof reaction? Able to give an idea of statementof the problem S ampleanswer Doestemperature affectthe rateof reaction? The increase/decrease in temperature willincrease /decreaseihe rateof reaction.// The higher/ lowerin temperature willincrease /decrease the rateof reactionl/ To investrgate the effectof temperature reaction.

rateof

tVoresponseor wrongresponse

T2

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Able

ate the three variables

Sa variab le : Manipulated solution of sodiumthiosulphate Temperature // Timetakenfor mark 'X' to become Rateof reaction /disappea r invisible variable : Constant sulphuric of sodiumthiosulphate/ Volumeandconcentration acid/ sizeof conicalflask \ Able 1osfafeany two variablescorrectly \ Able to stateany one variablescorrectly i No response ar wrongresponse

13

papercollection

ii#,,:

.: -re._ -re : ' : ]:#. .G{E

?,,(i1i)

fo sfafe fied v

between'the variablewith

i-: jG

g.4F-

: Sbmpleanswer: The higher/lower the temperature of sodiumthiosulphate solution, the higher/lower the rateof reaction.//

:i-

The higher/lower the temperature of sodiumthiosulphate solution, the shorter/longer the timetakenfor mark,X,to disappear fromsighVview i/ ; The increase/decrease in temperature of sodium thiosulphate solution willincreaseEecrease the rateof reEetion./i Whenthe temperature of sodiumthiosulphate solution increase /decrease, the rateof reaction will increase/decrease. Able to statethe rentronsn'tp Oetweenthe man'trulated variableand the respondingvariablewith direction S amoleanswer: The higher/lower the temperature, the higher/lower the rate of reaction.// The higher/lower the temperature, the shorter/longer the timetakenfor mark'X' to disappear ll The increases/decreases in temperature willincrease /decreasethe rateof reaction.// Able to statethe idea of hypothesis. Samplearlswer; Differenttemperature, differentreactivity. // Temperature changes,thetimetakenis different No responseor wrongresponse

t4

papercollection

2 (iv)

grve -E!-

Iistof

s and apparatus

==

Dampteanswer ,,

Mat-erials S odiumthiosulphast eo lu t io ns,u lp h u ric a c id . Apparatus. Conicalflask, ,bunse nb u rn e r,me a s u rincgy lin d e(i0 r ml), measuring cylinder(50 ml),stop-watch, filter/white /cardBoard paper. Able-togive completelistof materAlsand four apparatusas following. Answer: Materials: S odiumthiosulphast eo lu t io ns.u lp h u ric a c id Apparatus: Conicalflask thermo me t ebr.u n s e nb u rn e r.f ilt e r/ wh it e /cardboard paper. Able to giveat leastone substancesana at teastone apparatus

No responseor wrongresponse

l5

papercollection

-#.

# -

*ffi

to listallfhesfepscWactly

l+

pleAnswer: 1. 'X 'markis drawnori a pieceof white/filter/ cardboard paper 2 50 cm3of so d iu mt h io s u p h a tseo lu t io n t (O0 1 -1 . 0 ) moldm 3lis measured witha (50cm3) measuring cylinder andis p o u re din t oa c o n ic aflla s k . The solutionis slowlyheateduntil30 "C. 5 cm3ofhydro c h lo ric a c idt (0 . 1 2 1 - . 0 )mo ld m-3is measured witha (1O*rn")measuring cylinderand is addedto the conicalflask.A stop-watch is started immediately 5 The conicalflaskis swirledand is olacedon a white/filter/cardboard paperwitha mark'X' The 'X' markis observed vertically fromthetop throughthe s o lu t io n . The stop-watch is stoppedimmediately whenthe 'X' markcannotbe seen.Timeis recorded. The experiment is repeatedby usingthe sodium thiosuphate s o lu t io n a t 4 0 " C, 5 0 o C,O 0o Ca n d7 0 " C respectrvely Able to listdown sfeps 2, 4, 5, 7, I

fla

tz l

Ableto givean tdeato step4

I

No responseor wrongresponse

16

papercollection

=+ "#

to tabulate'th'e data -g

titleswithunits==. Completelistof temperdfilTes Sampleanswer Temperature

("c)

T ime (s)

30 40

50 60 70

Able to contructa table. 1. At least1 titlescorrectwithoutunits 2. lncompletelistof tempereatures S ampleanswer: Temperature

No responseor wrongresponse

t7

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ffil

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Ablffi1 give th6'stateme Responseis in questroi

Lry:

the problemacc

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S ampleanswer: Doesthe temperature of hydrochloric acidsolutionaffectthe rateof reaction? li Howdoesthetemperature of hydrochloric acidsolution affectthe rate of reactron?ll * Howdoesthe high/ lowtemperature of solutionaffecttlre ratehydrochloric acidof reaction? Able to give the statementof the problernlessaccurately. Responsein questtonform. S ampleanswer: Doesthe increase / decreasein temperature increase/decrease the rateof reaction?l Howdoesthe increase/decrease in temoerature affectthe I r a te n f r o a n fin n ?

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S ampleanswer, Doestemperature affectthe rateof reaction? The increase/decrease in temperature will increase /decrease the rateof reaction. // The higher/ lowerin temperature willincrease/decrease the rateof reaction. // To investigate the effectof temperature to the rateof reaction. No re

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Manipulated variab le : Temperature of hydrochloric acid Responding variable : Rateof reaction // Volumeof gas perunittime Constant variable. Wiass/sizeof zincll lumeand concentration of hydrochloric acid Able to stateany two variailes correcily Able to stateany one variablescorrectly No responseor wrongresponse

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S ampleanswer: The higher/lower the temperature of hydrochloric acid,the higher/lower the rateof reaction.// The higher/lower thetemperature of hydrochloric acid,the higher/lower the volumeof the hydrogen gas releaseper unittime i/ : The increase/decrease:in temperature of hydrochloric will increase/decreasdlh-e rateof-ieaction// Whenthe temperature of hydrochloric acid increasesidecreases, the rateof reaction will increase/decrease. Able to statethe relationshipbetweentne maniputateA variableand the respondingvartablewith clirection. S ampleanswer: The higher/lower the temperature, the higher/lower.the rate of reactron.// The higher/lower thetemperature. the higher/lower the volumeof the hydrogen gas releasedper unittime. i/ The increase/decrease in temperature will increase/decrease the rateof reactions. // Able to statethe idea of hvpofhesis Sampleanswer; Different temperature, differentreactivity. // Temperature changes, thetimetakenis different No responseor wrongresponse

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Materials: Zinc,hydrochloriacc id Apparatus: Conicalflask,thermometer , bunsenburner,stop-watch measuring cylinder(50 ml),delivery tubeand stopper, burette.basin. Able to give all materialsandfive apparatusas following. Answer: Materials: Zinc,hydrochloric acid Apparatus: Conicalflask,thermometer. bunsenburner,deliverytube, burette Ableto giveat leastone substanceand at leastone apparatus.

No responseor wrongresponse

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dm-'lis measured witha (50ml) measuring cylinder and is pouredintoa conicalflask. The solutionis slowlvheateduntil3O"C.n 2 g of zincis weighed,and is put intothe[onical flask. '-7 The conicalflask is closedimmediatelyWith a stopperwhichis joinedto the deliverytubeand the stoowatchis started. L The burettereadingis recordedat intervalof 30 is completed. secondsuntilthe reaction is repeated 9 The experiment by usrngthe hydrochloric a c ida t 4 0 " C, 5 0 " C, 6 0 " C a n d 70 "C respectively. Able to listdownsfeps 7, 4 6, 8, I

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No responseor wrongresponse

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