Spm Che1(sel)

4 5 4 lt l

SULIT 454u1 Kimia Kertas L 1 r/ajam

nQ

September 2008

\)

;i"l,k;"ftf,*t'ifi#H

JABATAN PELAJARAN SELANGOR PEPERIKSAANPERCUBAAN SPM 2008 KIMIA

Kertas I Satujam lima belasminit

JANGAN BUKA KBRTAS SOALAN INI SEHINGGA DIBERITAHU

|. Kertas ini adalah dalam dwibahasa. 2. Jawab semua soalan. 3. Calon dikehendakintembacamakluntatdi hcrlaman2 clnn3

Kertasini mensandunsi20 halamanbercetak.

ll-ihat sebelah... SULIT

454Ill

@ Hak Cipta JabatanPelajaranSelangor2008

454y1

SULIT

t. Which of the following solutionshas a pH value lessthan 7? - qrr|

[Antara larutan berikut, yang manakah mempunyainilai pH yang kurang danpadaT?] A

Glacial ethanoic acid [Asid etanoik glasial]

B

Dry ethanoic acid vapour [Wap asid etanoik kering]

C

Aqueous ethanoic acid [ktrutan akuas asid etanoik]

D

Ethanoic acid solution in methylbenzene[Larutan asid etanoik dalam metilbenlena]

2. Diagram I shows the set up of the apparatusfor an electrolysis. The bulb lights up when the switch is on. [Rajah ] di bawah menunjukkansusunanradas yang digunakan dalam elektrolisis. Mentol menyala apabila suis dipasangkan.l Carbon electrode IElektrod karbon]

Carbon electrode IElektrod karbon]

Molten X ILeburan X]

t

Diagram I [Rajah ]l

Heat

t

Itl What is substance X? [Apakah bahan X ?] A

Glucose[Glukosa].

B

Naphthalene[Naftalena] 1

C

Acetamide fAsetamida]

D

Lead(II) bromide [Plumbum(Il) bromida]

CaSOe 3. Which of the following pairs of reagentsis most suitable for preparing calcium sulphate? IAntara pasangan reagen berikut, yang manakahpaling sesuai untuk menyediakankalsium sulfut?]

A

qso+ + {12

Q + \1,90*-)

B

Calcium metal aqd s-ulphuricacidILogam kalsiumdan asid sulfurikl FtLS0q 4 QO'+ egov -r d2O oksidadan aiid sul.furik] Calcium oxide and sulphqriqacidIKal^siu1r1

C

Calcium carbonateand sulphuric acid IKalsium karbonht dan asid sulfurik]

D

Calcium nitrate sglution and sulphuric acid [Larutan kalsium nitrat dan asid sulfurik]

Cq&t * fl,5s* -4

.

Cacoe + HU"

Q@or).* Hzgor+

Gsq + No+ tl^

4. Which of the following chemicals will neutralisenitric acid? [Antara bahan berikut, yang manakah akan meneutralkanasid sulfurik?] A

Lead (II) oxide IPlumbum(Il) oksida]

B

Magnesium metal fLogam magnesium]

C

Copper(Il) carbonateIKuprum(Il) karbonat]

D

Ammonium carbonate[Ammonium karbonat]

454U1

[Lihat sebelah SULIT

454U1

A L+

SULIT 5. Diagram 2 showsa model of an atom. [Rajah 2 menuniukkan model suatu atom]

Nucleus Nukleus Electrons Elektron Diagtam2 IRaiah 2] Which scientistproposedthis model of an atom? ISaintis manakahyang mencadangkanmodel ini?J A

Neils Bohr

B

J.JThompson

C

JamesChadwick

D

Rutherford

6.

Photochromicglassis a type of glassthat is sensitireto light intensttr' ke(,nntail cahuttt] IKaca fotokroiik iolot, seieniskaca ;ang peka kepada which chemicalpresentin photochromicglassgives this property? sifut tersebut?] IBahan kimia yang manakahdalam kacafotokromik memberi A

Boron oxide {Boron oksidal

B

Silver nitrate[Argentumnitrat]

C

Silver chlorideIArgentumklorida]

D

Aluminum oxide fAluminum oksida]

7 . Which pair of alloy and its compositionis true ? benar ?] IPasan'ganaloi dengankomposisinyayang manakah Alloy IAtoi]

Composition IKomposisi]

A

SteelIKeluli]

Iron,zincIBesi,z.ink]

B

Bronze[Gangsal

Zinc, tin [Zink,stanum]

C

Brass fktyang]

Copper,zinc[KuPrum.Zink]

D

Pewter[Piuter]

Tin, iron [Stanum,besi]

454U1

,r\

[Lihat sebelah SULIT

454U1

5

SULIT

8. Diagram 3 showsthe arrangementof atomsin bronze' gcngsa'l tRajah 3 menunjukkansLtsunallatom dalam Copper atom IAtom kuprum] Tin atom IAtom timah]

Diagram 3 [Raiah 3] which statementexplainswhy bronzeis harderthan pure copper? '!Pent y-ataan yang manakahmenerangkanmengapagangsalebih kuat daripada kuprum tulen?l A B C

D

The packing of atomsare more compactin bronze' Isusunanatom lebih padat dalam gangsa'] There are no empty spacesbetweenatomsin bronze' [Tiactaruang kosongdalam gangsa.] Layersof copperatomsare less1ikelyto slide in bronze' gangsa'] Ilttpisan atom kuprum kurang menggelonggsordalam Strongbonds are formed betweencopperatomsand tin atomsin bronze. timah dalam gangsa'] Ilkain yang kuat terbentukantara atom kuprum dan atom

9. Which pair of compositematerialand its usageis true ? dan kegunaannrayangmanakalt bernr ?] bahcutkttntposit Iposori_zan Usage [Kegunaan]

Composite materials fBahan KomPosit] A

Fibre glass IGentian kaca]

To make water storagetanks IUntuk membuattangki air]

B

Fibre oPtics IGentian oPtic]

To make optical lenses IUntuk membuatcermin mata gelaP]

C

Photochromicglass IKaca fotokromik]

To makeelectricalcables IUntuk membuatkabel elektrik]

D

Ceramicglass ISeramik kaca]

To makehelmets IUntuk membuattopi keledar]

10. A substanceis said to be oxidized if ISuatu bahan telah dioksidakanjika] A

oxygen is lost [oksigendihilangkan]

B

hydrogenis addedIhydrogenditambahkan]

C

electronsare lost [elektron dihilangkan]

D

Inombor pengoksidaanberkurangan] its oxidation numberdecreases

| 45411

ll-ihat sebelah SULIT

454U1

SULIT

I 1. Corrosionof metal and marble structuresare causedby acid rain. Which gasescan causeacid rain? boleh IKakisan struktur logam dan batu marmar disebabkanoleh hujan asid. Gas manakah menyebabkanhujan asid?l INO II

NO:

III

NH:

IV

SO:

A

I and II only

B

II and IV only

C

III and IV only

D

l, II and IV only

t2.

Insulin is usedto treat diabetes flnsulin untuk merawatpen.vakitkencingmanisl Which type of medicineis insulin classifiedas? IJenis ubat manakahinsulin dikelaskan?]

d

A

Hormone [Hormon]

B

Analgesic[Analgesic]

C

Antibiotic [Antibiotik]

D

StimulantIPerangsang]

oxr{afrm r,^ u') -_t

r Y.,. L

?60,+ 13. Which substancewill changeaqueousirorltllt sulphatefrom li-ehtgreento brown? perang?l lBahan yang manakahakan menukctrkanwantcthijctumudafertun(ll) sulfat ke A

sulphuric acid [asid suffurik]

B

sodiumhydroxide [nrttrium hidroksida]

C

chlorine water[air klorinl

D

sulphurdioxide gasIgas sulfur dioksicta]

14. What are the molecularformula and the empirical formula of ethanoicacid ? IApakahformula molekul danformula empirik bagi asid etanoik ? | Molecular formula Empirical formula Iformula molekul] [formula empirik]

4 54ltl

A

czHlo

crHro

B

C:H+Or

cHro

C

c:H+or

c:H+or

D

C:Hr,o

C1H1,O

ll-ihat sebelah SULIT

454Ur

7

SULIT

15. Diagram4 showsstructuralformulafor a carboncompound' strukturbagisuatusebatianknrbon.l Bajah 4 menunjukkanformula il I

l l ${${}{H I lll t-l -t.- r* {l * {:*l'l

ll Hil Diagram 4 IRaiah 4] Wtri"t of the following is the IUPAC name for the compound? untuksebatianitu?l fAntara berikut yang manakahnamaITJPAC A

3-methylbut-l-ene[3-metilbut-l-ena]

B

3-methylbut-2-ene[3-metillbut-2-ena]

C

2-methylbut-3-ene[2-metillbut-3-ena]

D

3-methylpent-2-ene [3-metilpent-2-ena]

l.tcl

l'l1S0y.^

acid and sulphuric acid? 16. Which chemical can be used to differentiate betweenhydrochiciric asid hidroklorik dan asid untukmembezakan IBahan kimia yang manakahboleh digunakan

sulfurik?l A

BariumsulphateIBarium sul.fatl

B

Barium carbonate [Barium karbonat]

C

Lead(II) oxide[Plumbum(Il) oksida]

D

Lead(II) carbonatefPlumbum(ll) karbonat]

H"

0"

equation of tht r' tction ls as 17. Spacerockets use a mixture of hydrbgen and oxygen as a fuel. The follows: dan oksigensebagaibahan api' Persamaanbagi tindak IRoket menggunakancampuranhydrogen balasgdalah saPertiberikutl

zY.* 8:* 2H:oz-72 Which statementexplains that the reaction is redox? balas ini ad:alahredoks?l [pernyataan manaiah menerangkantindak A

Hydrogenis oxidized and oxygen is reduced' r unkan'] I Hyd r ogen d ioksi dakan dan ox7gen dit u

B

Hydrogenis reducedand oxygenis oxidized' I Hydro gen diturunkan dan oksigen dioksidakan']

C

The Productcontainsoxygen' IHasil tindak balas mengandungioksigen'] Hydrogen is a reducing agent IHYdrogenadalah agenPenurunan]

D

454u1

fl-ihat sebelah SULIT

454u1

8

SULIT

18. Diagram 5 shows an energy level for the reaction P + Q + PQ' P + Q -+ PQ ] fRajah 5 menwnjukkansuaiu aras tdiaga bagi tindak balas

R

oo .q) Fi

>| b0 |r o f Yl

Reaction pathway [Lintasan tindak balas] Diagram 5 [Rajah 5] Which Rornan number representsthe heat released in this reaction? dalam tindak balas ini?] fAngka Roman manakah mewakili haba yang di bebaskan AI BII C

III

D

TV

.1

19. Diagram 6 shows a polymerization process[Rajah 6 menunjukkansuatuprosespempolimeran]

FF n CFI:CF2

---

P

ll

C-C

ll

FF

a

l

Diagram6 [Rajah 6]

What is common between P and Q? fApakahyang sama antara P dan Q ?] A

Mass fJisim]

B

Density [Ketumpatan]

C

Boiling point [Takat didih]

D

Empirical formula [Formukt empirik]

454ur

ll-ihat sebelah SULIT

SULIT

9

4541/1

20. What arethe applicationsof electrolysisin industries? I Apakahaplikasielektrolisisdalamindustri?] I

Purification of impure copper [Menulenkan logam kuprum tak tulen]

II

Electroplating of copper with nickel [Menyadurkan kuprum dengan nikel]

III

Extraction of iron from iron(III) oxide [Mengekstrakferum daripadaferum(lll) oksida]

N

Extraction of aluminium from aluminum oxide IMengekstrak logam aluminium daripada aluminium oksida]

A

I and II only

B

I, II and III only

C

I, II and IV only

D

I, II, ilI and IV

21. Thefollowing information is about a particle. I Maklumat berikut adalah tentang suatu zarah.l

o o o

Electron affangement is 2.8 ISusunanelektron ialah 2.8] Number of proton is 7 IBilangan proton ialah 7] Number of neutronis 8 IBilangon neutron ialah 8]

What is this particle ? I Apakahzaiah itu ?] AFBOr C

NT-

DNe 22. Electrolysis of solution X using carbon electrodesprgducesgasesat both electrodes.What is solutionX? 'i I kan ga IElektrolisis larutan X dengan menggunakanelektrod karbon menghasilkan gas pa9lg*edtqr -dua s pad, elektrod. Apakah larutan X?l n * / t n '- l

A

Silver nitrate solution fi.arutan argentum nitratl

B

Sodium chloride solution [Larutan natrium klorida]

C

Copper(Il) sulphatesolutionI Lrtrutan kuprum(II ) sulfut]

D

Copper(ll) hydroxide solutionI Larutan kuprum(ll) hidroksidal

h3' Qryt + f..-U '

Q

,/,a+ \-u

454t/l

cl-

z17)"$

\-Y'/

M[Lihat sebelah, SULIT

4s4Ul

t0

SULIT

23. Table I showsthe volume of oxygen gascollectedevery 30 s for the decompositionof hydrogen peroxide, -lJaduat H:O: . 1 menunjukkanisipadugas oksigenyang dikumpulpada setiap30 s bagi pettguraian hydrogenperoksida, HzOz .l

Time/s fMasa/sl Volume of oxygengas/cm" [Isioadu sasoksisen/cm3l

0

30

60

0.0

5.0

9.0

150 16.5

t20 t4.5

90 12.0

r80 r8.0

Table I [Jadual 1] Calculatethe averagerate of decompositionof hydrogenperoxidefrom 60 s to 180 s' I Hitungkan kaclarpurata penguraian hydrogenperoksida dari 60 s ke ] 80 sl A

0.075cm3minl

B

4.5 cmr min-r

C

9.0 cm3min-l

D

18.0cmr min-r i '-

24.Which ion has the highestconcentrationin an aqueoussolutionof potassiumsulphate? Ilon yang mana mempunvai kepekatantertinggi dalant larutan akuaskaliutn sulfut?] A

H. (aq) [H"(ak)]

B C

oH (aq)toH (ak)l K. (aq)tK (ak)l

D

SOa2-(aq)[ SOr' (ak)]

25.Diagram 7 showsthe electronalrangementof an ion formed from atom X.

X.l tRajah 7 menunjukkansuslulatlelektronbagi ion tang terbentukdaripada atom

2+

tl

.L

Diagram 7 IRaiah 7] Which of the following is true about atom X ? IAntara berikut, yang manakah benar tentang X ?] A

Atom X has receivedelectrons.[Atom x telah menerimaelektron.]

B

Number of electronsof atom X is 8. IBilangan elektronatom X ialah 8']

C

Electronalrangementof atom X is 2.8. [susunan elektronatom X ialah 2.8.]

D

X is an element in Period 3 of the Periodic Table. [Kedudukan X dalam Jadual Berkala adalah Kala 3.]

454Ur

[Lihat sebelah SULIT

454U1

1l

SI.JLIT

26.Diagramsshowstheset-upoftheapparatusfordisplacementreactionsintest-tubex'Yandz' [RajahsmenunjukkantindakbalaspenyesarandalamtigatabungujiX,YdanZ.]

l'/

{-

r/a

Tin I Stanum]

CA

r.4 q\

'Ln

Zinc Zinkl

Lead(II)nitratet:lYti:" ., Copper(Il)sulph4tesolution Iron(II) sulpharesolution plumbum(Il)nitratl ILarutankuprum(Il)sulfatl Il-arutanferum(Il)sulfat] finrutan

(t-

(u&+t4 X

{tr

fb

Dia g r a m 8 . . ,

\

,

{ Qay tRiahstyb(NO,)"

--:^-.^1.^-^l^^-', takes place? In which test tube does replacementreaction penyesaranberlaku?] balas tindak [Dalam tabung uii yang ianakah X onlY A

lr

6 hq

{4,^

B

ZonlY

C

XandYonlY

D

X and ZonlY

C. l^ 9 0 y + 2 n

n

for a voltaic cell' 27. Diagtamg shows the set-upof the apparatus is completed. circuit ThJvoltmeter will show aieading when the radas bagi sel ringkas'] ..[Raiah 9 menunjukkansusunan bacaan apabila litar dilengkapkan.] satu [voltmeter ot on iriuniukkan

Copper IKupruml

Diagram 9 [Rajah 9]

(*lftt solution Copper(ll)sulirhate sulfut] II kuPrum( Inrutan ) I if it is useaselectrodeX? which metalwill give thelowestvoltmeterreading bacaai voltmeterpaling rendahapabilalogamitu [Ittgam yangm,nakai oko, menuniukkan dijadiknnelektrodY?l A

Zinc [Zink]

7-q

B

Magnesium[Magnesium]

\q

C

:rion[Besi]

D

r-ead[Plumbum]

?n' lb ll-ihat sebelah SULIT

454lll

i

SULIT

T2

454U1

28. Diagram 10 shows the set-upof the apparatusfor electroplating. IRajah l0 menunjukkansusunanradas untuk prosespenyaduran elektrik.]

Iron spoon ISudu besi] Silver IArgentum]

Silver nitratesolution I lnrutan argentum nitrat ] Diagram 10 [Raiah l0] I

Which of the following equationsrepresentthe reactionsat the anodeand cathode? [Antara berikut yang manakahpersamaan yang mewakili tindak balas di anod dan katod?] Anode IAnodl

Cathode IKatodl

A

Ag* + e' --- Ag

Ag ___ Ag* + e

B

Ag ---+Ag'

Ag'

C

Ag --- Ag* + e

Fe''* + 3e- --' Fe

D

Fe'* + 3e- --' Fe

Fe -r Fe-'* + 3e-

+e

Cq\{ a

+ e- ---tAg

C a,

29. A mixture containing1 mole of buitineand 8 moles of oxy"genis reactedin a sealedcontainer. The chemicalequationbelow representsthe reaction. ISatu campuran mengandungiI mol butena dan 8 mol oksigen telah ditindakbalaskan dalam sebuahbekas tertutup. Persamaankimia berikut mewakili tindakbalas2-'angberlaku.l

\t

C+H*(g) + 602 (g) --- 4CO:(g) + 4HuO(g) Whatisthetotal@preSentinthecontainerattheendofthereaction? I Berapakah-jimlah bilangan mol gas yang ada di dalam bekastersebut di akhir tindakbalas?]

A1 6 B8 c1 5 D t0

i)

/t

}I

r

'

l. l \J

30. The thermochemicalequationfor a neutralizationreactionis given below. IPersamaantermokimiauntuk tindak balaspeneutralandiberi di bawah.] KOH + HCI ---+KCI + HrO

AH = -57 kJ mol-'

Which neutralizationreactionhas the samevalue for the heatof neutralisation? [Tindak balaspeneutralanyang manakahmempunyainilai habapeneutralan yang sama?] NHr +

A

HCI +

B

CH3COOH + KOH * CH:COOK + HzO

C

NaOH + HNOI --- NaNO: + H2O

D

CH3COOH + NH+OH --- CHTCOONH+ + H:O

454Itr

NHIC1

fl-ihat sebelah SULIT

454llr

14

SULIT

X and element Y' 33. Table 2 shows the proton number for element proton bagi unsurX dan unsur YI [Jaduat 2 menuniikkannombor

Proton number

Element

1l

X Y

8

. ) - .\l .x I l 4./tb

Y.

Table2 fJadual 2] WhichstatementsdescribethecompoundformedbetweenelementXandelementY? dan Yl ? ,"uotion yang terbentuk antara unsurx !pernyataan yattg manakahmeneringk), The formula of the comPoundis XYz . IFormula sebatianadalahXYz] boiling point' II T'hecompoundhashigh melting point and didih yang tinggi] takat dan Isebarian i"i *r*puirai takatTibur is passedthroughits aqueoussolution' III The compounddecomposeswhen electricity elektrik rnelaluilarutan akueusnya'] Isebatian ini terurai ipabila arus I

IVThecompounddissolvesinwatertoformanalkalinesolution..\ beralkali'l larutan ISebatianini laruttdalam air membentuk '-ang A

I and III onlY

B

lI; IIIand IV onlY

C

I, II and IV onlY

D

I.Il, tII and IV

34.ThechemicalequationbelowrepresentsthereactionintheHaberProcess. tindak balas dalam ProsesHaber' I Ipersamaankimia c]i bawah miwakili Nr (g) + 3 H? (g) = 2 NH.l (B) How can the rate of reaction be increased? ini boleh ditambah?] IBagaimanakahkadar tindak balas I

Heating.themixture of gases' [Memanaskancam7urangas itu'l

lI

Compressingthe mixture of gases' IMemamPatkancam7uran gas itu']

III

Shakingthe mixture of gases' gas itu'] I M enggoncangkancampuran

lV

iron' Passingthe mixture of gasesthroughpowdered serbukbesi] Ithensilirkan campuran gasitu melalui

A

I and II onlY

B

I, II and III onlY

C

1, lI and IV onlY

D

II. III and IV

454U1

-

[Lihat sebelah SULIT

454U1

l5

SULIT

35. Diagram 11 showsthe energyprofile diagramfor a reaction' IRajah 11 menunjukkangambaraiaharas tenagabagi suatutindakbalas] Energy

Diagraml1 [Rajah I 1]

How much is the heat of reaction and the activation energy for the reaction? IBerapakah haba tindak balas dan tenagapengaktifan bagi tindak balas ini?]

Activation Energy /kJ [T enaga Pengaktifan /kJ]

A

Heat of reaction/kJ [Habatindakbalas/ kJ] -40

B

-60

40

C

40.

100

D

60

100

Lpo^uo

60

36 .ElementX and elementY reactto form a covalentcompoundwith a formula XY,. r*hat are the possibleproton numbers of X and Y? IUnsur X dan Y bertindak balas membentuksebatian kovalen denganformula XYz ] [Apakah nombor proton yang mungkinbagi X dan Y?]

x

Y

A

?^ " L/ ,

8')

ts

6 +4

b

8n

b

C

4 n-:u

15 .L-

D

" t,8 ttu /

.v b , VLx

37.

7 g of X containsfour times more atoms than that in 7 g of iron. [7 S X mengandungiempat kali lebih banyak atom yang terdapat dalam 7 g besi] Calculate the relative atomic mass of ? [Hitungkan iisim atom relatif X.] = [Relative atomic mass:Fe = 56) [ Jisim atom relatif : Fe 56] )

A8 B 14

c 28 D 454U1

224 ll-ihat sebelah SULIT

SULIT 38 .

454rll

16 a compound' with 8 g of element T to form 6 g of element X to'nbin"' suatusebailan'] B ; un'u' r-*tuk membentuk berpaai't';;"';;; x g unsur [6

of this compound ?^ What is the empirical formula ?empirik bagi sebatiantersebut ] [Apakahformuta 'o{ ;) = 120; T = 801 a of mass lRelative atomic

i i i t i t o *re ta ti f X:T

A

Y =1 2 0 ;7 =B o'

( :8

1\

B X r zf.g C

XrT:

D

X,T*

'l*L

('".

'.'.fi*r

'

asid 3g .The e quationbelowshowsthere a c t io n bantura e t we emagttesium-dan n ma g n e s iu ma n sulfurik'|. d s u lp h u ric a c i d . tindakbalas ao*oi ai Ipersamaan ^enunjukkatt Mg(s) +

H:SO+(aq) --+

MgSOr(aO) +

H:(g)

is true'l Which of the following statements benar?] yang manakah ierikut' IAntara pernyaruan 6 = 16] H = 1; l/rg=241 S - 32; fRelativeatomic massof s = 161 - 35'5;

'i;i:;;';;;-,,i',it'i =t, us = zZ;ct

I g sulphuricacid I g magnesiumreactscompletely.*ith- a*'ganI g asidsulfurik']

A

uotoit"n'gkof [1 g magne'i**ii'i'aoi with I Ttt lld::::n ions' completelv reacts 1molmagnesium dettgart] mol iotrhrdrogen"l

B

Loto'i'ugt'op I t mol *tr'';;;;;'bertindak with 98 g sulphuricacid' 24 g magnesiumreactscompletely

C

balasi"i't"i1"gon [24 g magn)'i'^-i'ni'dai

98g asidsultuik]

D2molhydrogengasareproducedwhenonemolsulphuricacidreactscompletelrrr.ithexcess magnesium' [2molgashydrogendihasilkattapabila]molasidsulplturikbertindakbalaslengkapdengan berlebihanmagnesiuml 250 cm3of 0' solid requiredto prepare hydroxi'de sodium of mass the ." What is 40.

r 10 mol dm sodium

cmitarutan 250 menvediakan pertuuntuk no.tt,iu^ma'":',0::?:f

lly:i:tit;i;'],0,,", 0'10moldm'?l natiumnia'"wif"'iJ'i'itkatan

_ H= 1;g 16;7'tr61=23} =Z3)|Jisimarcmrelatif: 16;Na o= 1; H= atomicmass: [Relative A

0.025g

B

0.625g

C

1.000g

D

25'000g

454rlr

[Lihat sebelah SULIT

45411 |

t7

SULIT

of five elements,P, Q, R and S . 41. Table 3 showsthe electronarrangements bagi lima unsur P, Q, R, dan S.l susunan electron Uadual 3 menunjukkan Element Iunsurl P

Electron arrangement Isusunanelektron]

O

2.3 2.4

R S

2.6 2. 8 . 1

Table 3 [Jadual 3]

Which two elementswill reactto form a covalentcompound? sebatian kovalen? IDna unsur manakahakan meng,hasilkan A

RandS [RdanS]

B

PandR[P danR]

C

PandQ IPdanQ]

D

RandQ[RdanQ]

42.Diagram 12 showsthe symbolsrepresentingatomsD and E. [Rajah l2 menunjukkansimbol yang mewakili atom D dan E]. Diagram 12 [Rajah 12]

J

I

II I

Calculatethe relativemolecularmassof the compoundformedbetweenatomD andatomE. jisim molekulrelatifbagisebatianyangterbentukit antaraatomD danatomE.] I Hitungkan AZI 84 3 c5 5

t92

D

43. The equationbelow representsthe reactionbetweenlead(Il) nitrate solutionand sodiumchloride solution. IPersamaandi bawah menunjukkantindakbalasantara larutan plumbum(ll)nitrat dan larutan

natriumkloridal d,u\ Pb(NOrh(aq) + 2NaCl(aq)

W"4

d,*

---+ PbCl:(s)

+ 2NaNO.(aQ)

6.o o2- Vn' dl

What is the concentrationof lead(Il) nitrate solutionif 4 cm' of 1.0 mol dm-' sodiumchloride solution reactscompletelywith 5 cm' of lead(Il) nitrate solution? '' fApakah kepekatanlarutan plumbum(Il) nitrat jika 4 cmr ].0 mol dm larutan natrium klorida bertindakbalas lengkapdengan5 cmj larutan plumbum(ll) nitratl A

0.2 mol dm-l

B C

0.4 mol dm-j 3 0.8 mol dm

D

1.6mol dm3

454u1

't\ u{W2 'z1obb 6, r

?' L

ll-ihat sebelah SULIT

SULIT

454U1

18

44. Diagraml3 arethe structuralformulaewhichrepresentorganiccompoundsP andQ. strukturyangmewakilisebatianorganikP dan Q.] [Rajahl3 menunjukkanformula HH ll HO- C-C-C-H llll OHH

H H I I H_C _ C- OH I H H P

Diagram 13 [Rajah 13]

a

What is the nameof the compoundformed when P reactsuith Q using concentratedsulphuricacid as a catalyst? [Apakah nama sebatianyang terhasil apabila P bertindakbalttsdenqanQ denganmenggunakan acid sulphurikpekat sebagaimangkinl? A

Butyl etfranoate[Butil etanoat]

B

Ethyl butanoateIEtil buranoat]

C

Propyl ethanoateIPropil eta,not]

D

Ethyl propanoateIEril propanoat]

45. Aqueouscopper(Il)sulphatereactswith aqueouspotassiumiodideaccordingto the equationbelow: ftrtrutan akueuskuprunt(ll)sulfatbertindakbalas denganlarutan akueuskalium iodida mengikut bersamaanberikut:l

zf 2Cur*{aq)+ 4I (aq) ---+2CuI(s) + Ir(s) /^_ ) r1 gr'

Which statementis true? IPernyataanyang manakahbenar?]

-'"-l -

I

lodide ions act as a reducingagent IIon iodida bertindaksebagaiagenpenurwtatt]

II

Oxidation numberof copperchangesfrom +2 to +l INombor pengoksidaankupruntberubahdari +2 ke +I]

III

A yellow solid is formed I Pepejalkuning terbentuk]

IV

Copper(Il) ion is oxidised Ilon kuprum(II) telah dioksidakan ]

A

I and II only

B

I and III only

C

I, II and III only

D

I. II. III and IV

454Ur

[Lihat sebelah SULIT

4541t1

,t9

SULIT

46. The word equation below shows how compound X, a food additive is prepared. [Persarnaanperkataan di bowah menunjukkanbagaimana sebatian X, sejenis bahan tambah mokanandisediakanl. Carboxylic acid + alcohol --+ compound X + water [Asid karbosilik + alkohol ---' sebatianX + airl What is the use of comPoundX? [Apakah kegunaansebatianX?] A Flavouring agent[Perisa] B Thickening agent [Agen pemekat] C Colouring IPewama] D Antioxidant IPengantioksida] 47. Diagran 14 shows two types of electrochemicalcells using the sameelectrolyte, copper(Il) sulphate. fGambarajah 14 menunjukkandua sel elektrokimia yang menggunakanelektrolit yang sama, kuprum(Il) sulfut.l

Copper plate A [Plat kuprum A]

I'

Copper plate B fPlat kuprum B]

Znc plate D fPtat zink D]

,#tr:

i

Copper(Il) sulphatesolution I l{trutan kuprum(I I ) sulfat]

i I

Copper plate C fPlat kuprum C]

t#

[,

lr I

Diagram 14 [Rajah 14]

lr

(

tt

t

Which of the changesin massof copper plates A, B and C are true? fPerubahan jisim plat kuprum A, B dan C, yang manakah benar?]

I

t

Mass of copperplate A /g [Jisim plat kuprum A /g]

Mass of copperplate B /g [Jisim plat kuprum B /g]

Mass of copperptate C /g [Jisim plat kuprum C /g]

A

IncreasesIBertambah]

DecreasesIBerkurang]

IncreasesIBertambah]

B

DecreasesIBerkurang]

IncreasesIBertambah]

IncreasesIBertambah]

C

IncreasesIBertambah]

DecreasesIBerkurang]

DecreasesIBerkurang]

D

DecreasesIBerkurang]

lncreasesIBertambah]

DecreasesIBerkurang]

454u1

[Lihat sebelah SULIT

4s4U1

20

SULIT 48.

c

CompoundE is obtainedfrom addition polymerization Isebatian E diperolehi daripadapempolimerantambahan]

o

CompoundE has an empirical formula of CH: IFormula empirik sebatianE ialah CHz]

o

The relative molecularmassof the monomerof compoundE is 28 IJisim molekul relatif monomerbagi sebatianE adalah 28]

is compoundE ? Which of the following substances = fRelativeatomicmass: C = 12; H 1] IBahan yang manakahadalah sebatianE ?] IJisim atom relatit'e:C = 12; H = ll A

Teflon fTeflon]

B

PolytheneIPolirena]

C

PolystyreneIPolistirena]

D

Polypropene[PoliproPena

n Therelativemolecular massof X is 32 [ Jisim molekulrelatif X adalah32] . Thehearof combustion of X is jz5kJ mol'rIHaba pentbakaranX adalah 725 kJ ntol '] What massof X shouldbe burnt to release2I750 J of heat? 21750J tenagahaba ?] IBerapakaltjisint X yang perlu dibakar tmtuk menghasilkan 0.039 0.969 1.079 9.609

A B C D

below' 50. Iron is produced when haematite,FerO: reactswith carbonmonoxideas shown sepertidi monoksida karbon dengan IBesi iihasilkan apabita haemati, Fe2O.tbertinclakbalas bawah.l FezO, + 3CO -* 2Fe + 3CO: Which changesin oxidation numberof the iron, Fe and carbon,C are correct? jaan ferum, Fe clankarbon,C yang manakahbetul ?] IPerubahan-nomborpengoksi

Iron

Carbon

A

+2 --+0

Q ---++2

B

+3 ---+0

a/ --++4

C

+2 -+ +3

0 --+ 2

D

t J ---++2

+7.1+4

KBRTAS SOALAN TAMAT 4 5 4 UI

ll-ihat sebelah SULIT

454llr

T3

SULIT

sodium thiosulphate and hydrochloric acid is as 31. The chemical equationfor thereactionbetween shownbelow: natrium tiosulfut dan asid hidroklorik adalah seperti IPersamaan kimia tindak balasantara berikut:l Na:S:O: +

zHCl ---+ 2NaCl + H:O + S + SOz

-Whichgraphrepresentsthechangeinconcentrationofsodiumthiosulphatewithtimeforthe reaction? [GrafyangmanakahmewakiliP$rubahankepekatannatriumtiosulfatdenganmasabagitindak balasini?l

C

A Concentrationof Na:S:Or /mol dm/mol dm-'] IKepekatan Na2S2O.t

Concentrationof Na:SuOr/mol dm ' '' /ntol dm- ] IKepekatan Na2S2C.t

3

Time /s IMasa /s]

Time /s IMasa /s]

D

B Coocenu"ation of Na:S:O.r /mol tdm NazSzo t /mol dm- l 1i.p.*"t*

-r

Concentration of Na:S:Or /mol dm /mol dm-' ] I KepekatanNa2S2O.t

- ''

Time /s IMasa /s]

Time /s IMasa /s]

harder than pure aluminium? 32. Which statementexplains why duralumin is duralumin adalah lebih keras daripada mengapa Lpernyataan yang iarakah ienerangkan aluminium tulen?l AAluminiumgtomsformionicbondswithcopperatomsinduralumin. ionik diigan atom kuprum dalam duralumin'] [Atom aluminium membentukikntan BThecopperalomsinduralurninaremorereactivethanaluminiumatoms lebih reaktif daripada atom aluminiuml [Atom t upruili dalam duralumin CThearrangementofatomsinduraluminislessorderlycomparedthoseinpurealuminium. ISusunanatomduraluminkurangteraturberbandingdenganaluminiumtulen] DAluminiumatomsformpositiveionsinthepresenceofcopperatonns positif dalam kehadiran atom kuprum] fAtom aluminium membintuk ion

454vr

ll-ihat sebelah SULTT