Spm Trial 2009 Che (hlsel)

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Kimia Kcrtas 1

2009

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PEJABAT PELAJARAN DAERAH

HULULANGAT

PEPERIKSAAN PKRCUBAAN SIJIL PELAJARAN MALAYSIA 2009

KIMIA

Kcrtas I

Satu jam lima bclas minit

.JANGAN BIJKA KERTAS SOALAN JNl SEHINGGA DlBERITAHU

I.

Katas so a/an ini ada/all da/am dwiha/wsa.

2.

Soa/an di ba/zagian atas adalall da/am Bahasa Inggeris. Sou/all eli ba/wgian bawah ada/all yang sepudan cia/am Bahasa lvlelayu.

3.

ea/on dikehendaki memhaca mak/umat cli /m/aman 2.

Kcrtas soalan ini mcngandungi

h"tlaman bcrcctak

dan 2 halaman tidak bcrcctak. '-1541/1

2009 I-Iok C;pta Pcpbat Pelajaran Dacrah Iluiu Lan",,!, Selangor

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MAKLUMAT UNTUK CALON I.

Kerlas soo/an ini mengandungi 50 s(Jalan.

2.

.la-wah scmua .'loa Ian.

3.

JawuIJ dengal1 menghilamkan ruangan yang bellli pada kerlas/{]Wapaf/.

4.

fiitamkan satu ruangan sahaja bag; seliap so alan

5.

,<"ekiranya (mda hendak menukarjawapan, padamkan londa yang teIah dihuat Kemudion hilOmkanjmvapan }r'Wl;:, banI.

6.

Rajah yOI1;:, mengiringi soalan tidak dilukis rnen;:,ikut skala keel/ali dinyatakan

7.

Anda dihen(]rkan men;:,;:,unakan kalkulator saintifik yanK tidak boleh diprogrmn

IN.FORMATION FOR CANDIDATES 1.

This question paper consists 0/50 questions.

2.

Answer all Ijllcstions.

3.

Answer each question by blackenin;:, the correct space on the cms.vcr sheet

4.

macken only one space/or each question.

5.

[/you wish to change your annver, erase the blackened mark that y()U have mild!' niCn

hlacken the spaceft)]' the new onSWf:r

6

The diagrmlls in the questions provided are not drawn to scale unless slated

7.

You may usc a non-programnwhle scientific calculator.

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Which oCthe following substances can undergo sublimation when heated?

Amara hahan herikuf, yang manakah balch mengalami pemejalwapan apabilu

dipanaskan:.>

A

Sulphur sulfur Iodine

B

Iodin

~:\;

Glucose

'-"'

Glukosa

D

Sodium chloridc

Natrium klorida

2.

Which ofthc following scientists and their contributions on the atomic theory is

trw.;')

Amara berikul, yang manakah benar lcntang sa/ntis dan sumbangat1 lcrhar/ap leori atom:'>

Atomic Theory

Scientist

Tcori Atom

Smnli,\ A

Neils Bohr

Electrons move in shells around the nucleus

Fleklron hergerak di da/am pelala mengelilingi nukleus B

John Dalton

Atom is a sphere of positive charge and

surrounded by elcerron

Atom ialah .vlera bereus po,\itijdan dike/dlngl aleh eleklron Ernest Rutherford

Elements arc made up of tiny particles calkd atom

Unsur dibirw dar/pada zorah-zorah hal liS dikenali

D

Joseph John Thomson

Alpha particle is positively charged

Zarah alfa bereas jJo.l'iti[

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:3

Diagram I shows the cooling curve of liquid X.

Rajah I menunjukkan lengkungpenyejukan bagi eecair X. Te:moeraturc/Jc

Suh~t Ie

so 70 60 Time/min /vJasalmin Diagram 1

Rajah J Which of [he following statements is [rut:

Am'ara pernyataan herikut. yang manakah benor

A

Substance X exist as a liquid at t4

Bahan X wujud sebagai eceair pada

.@

./ l,;

Substance X exists in the solid state at

Bahan X Hlujltd sebagai pcpeja/ pada C

1,1

11

The: melting point of substance X is 80°C

Takol lefmr bahan X ia/ah 8(fiC D

lleat is absorbed by the particles of X during the time interval t2 to t3

Hoba diserap oleh jirim-jirim X dalam jll/at masLi t2 kepada 13

4 Chcmical equation below represent of a reaction:

Persamaan kimia di bawah mewakili .\'ualu lindakhalas

4 S

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Value ora, b,

and d respectively

C

Nilai a, h, c dan d masing-masing ialah

A

2, 6, 3, 3

B

1,6,3,6

C

1, 9, 3, 3 2,9,6,6

5) Na ' ion and AI" ion havc same number of f

[Proton Number: Na Jon

11, AI= 13]

Na' dan At!; mempunyai hilangan ycmg sarna

/Nombor Prolon' Na=ll, Al= 13/

A

charge

J

,,(

cas 13

electron

elektron

@

neutron

neutron

0

proton

I

'I

proton

G ;\ small

dU1llunl

(~rLle'!

of' iodine

is placed into a [est tube and heated, Which statement

Sedikit Iwhlur iodin diletakkan ke dalam sehuah tabung uji dan dipanaskanPernyataan manakah yang tit/uk benar?

A

Thc distance between iodine particle increase

Jarak di antara zarah-zarah iodin berlamhah H

Purple colour vapour released

Gas herwarna ungu terbebas

c

The density of iodine decreases

Kelllmpalan iodin semakin berkurcmgan

The force of attraction between the iodine panictc increases [)aya tarikan di antara zarah-zarah iodin menjodi senwkin kuat ·1541/1

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6

SUUT 7 Which of the following is an electrolyte?

/!nfara yang herikul, yang manakoh merupakan elektrolit?

(9

Silver nitrate solution

v

Lurutun argentum Ilitrat

13

Molten lead

Lebllran plumbum C

Pure ethanol Flano/lu/en

D

glucose solution

Larutart g/ukosa

-1 8 Which is thc correct half equation at

thC(~~in the extraction ofaluminiul1l from

aluminium oxide by electrolysis'?

\,-//

Anturu selengllh persamaan yang herikU!, y(mg manakah hasi/ £Ii [Jnod datum pengeksrraknn a/ummillm dori aluminium ok.\'iria dengan koeduh deklrolisis )

A

AI'

11

A1 3 ' +

/C)

20 2 -

-!.--

c

-----~---_Y

3c

_._-----::,....

L/

D

9

-.~

O2

0 2 - ----;;... OJ

Propanoic acid is

iJ

AI

AI 4c

-1-

2c­

weak acid because

ASld propanoik ada/ah asid ferrlah kPrana i\

Aeid is an orgrmic acid

Adolah sejenis asid orgnnik i3

Acid dissolves slightly in water

Asid me/and se/whagian da/am air (.

Acid is a weak conductor of electricity

/Isid ado/ah pengalir elektrik yang lemull

~)l

Acid ionizes partially in water to produce a low concentration of hydrogen ions

\ ___J

Asid mengiol1 separa da/am air menghasifkan kepekatan ian hidragen yang

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10 Which of the following salts is insoluble in water? Anlarn gornm heriku!, yang manakah tidal< lorot dalam air:) /'

Coppcr(lI) carbonate Kupnml (If) karhona{

II

Zinc sulphate 'Lmk sulfat

Jrf

Lead(Il) chloride Plumbum (ll) kloyida

IV

Sodium cthanoatc Nrllrium elanoat

I''J W

I and III only

} dan III sahaja B

[I and IV only

II dan 1V sahaja C

I, III and IV only

l, !)

if}

dan TV sahaja

I, ll, III and IV f, fI,

II I dan IV

11 Ammonia is converted to nitrogen monoxide in the presence of platinum at 900°C

through a proccs;; called

Ammonio dilu/wrkon kepada nifrogen nzonok;'ida dengan kehadiran platinum pada suhu 900°C mefa{u; proses yang dipanggil

Q

Haber process Proscs Ilabcr

I3

Ostwald process Proses Ostlvald

C

Conlact Process Proses ",'('muh

D

Saponification process

Proses Saponifikasi 4S41 ! 1

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l2 Which of the following statement is a characteristic of a catalyst?

Anlam pernyataan berikul, yang manakah ciri-cirl mangkin

(9

A catalyst will

IOWLT

?

the: activation energy ora reaction

Mrmgkin merendahkan fenago pengoktijon lindak halas I'he physical state of a catalyst must be the same as the reactants,

B

Keadaanjizik mangkill adalah ,wnw dengan keadaan{izik bahan tim/uk hulas C

A catalyst may change chemically ancr n:adion

Mangkin holeh berubah seeara lumia selepos tindak bolas D

A catalyst is used in large amount only

/vfangkin digunakan harry'a da/am kuanliti yang besar

13 Diagram 2 shows an energy level diagram.

Rajah 2 w/oh gambol' rajah aros lenaga Energy Tcnaga

n

m

Reaction path Laham findakha/as

Diagram 2

Rajah 2 Which of the following is the activation energy') An/oro yang

/\

beriklll, yang monakah lenoga pengaktifi:.m?

m n

c

P

D

q

l Lihat scbelah J

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9

14 Wh ich

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or the ro II owing is an unsaturated hydrocarbon?

/jnlara Jiang hcrikut, yang manakah hidrokor/Jon tok (cpu?

A

Alkane

Alkana

G ('

/\.lkc!1e

.Ii/kena /\k;ohol

A Ikuhol D

Carhoxyl ic acid

Asic! karhoksilik j

5 Which of' the following pair or general fOl'lllulw.; and homulogue series is correct?

/If/(ura jJasangan Jbrrmda am dan siri homolog herikut, yang nJatiakah hetlll

A

Genenl} Formula

Homologue series

Formula am

Siri homolog

C"B

?

Alkane

2n

Alkana B

~

/-,

6)

Alkene

C,,l12n!2

(',,11:>,,!101l

/llkena Alcohol

Alkohol D

Cnl hn+ 1

Ester

Esler

16 Which ol'the following is an oxidation process?

I1nlara yang henkut, yang manakah proses pengoksidaan:; A

Carbon dioxide loses oxygen

Karbon diuksida kehilangan oxygen A nromine atom gains an electron

Satu atom bromin mellerlma saWelek(ron

c

A chlorine molecule gains hydrogcn

Setu rnolekui klorin menerima hidrogen J\ sodium atom loses an electron

Satu alom natrium kehilangan satu elck(ron

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17

" " ..

Bromine water Air bromm Acidified potassium munganatc(VlI) Kalium manganaf (Vll) berasid Aciuiflcu potassium dichromate(VI)

Kalium dikrotnal (VI) berasid

Which of following is true abOllt the substances?

Antara herikU!, yang manakah benar fenfang hahanbahan Icrsehuf ')

Reducing agent

A

Agen penurzman

fj

Oxidising agent

Agen penp;ok.sidaan

C

Dehyuration agent

Agen pendehidrafan IIydration agent

D

r

\

Agen penghidrafan

1g \\ihm is lhe

of (;xCJthcrmic reaction'?

Apukah tnoksud IIndak balas eksolermik?

I Ie at is ahsorbed

A

t;,(

Haba diserap The total energy ofthe reactants is more than the total energy of the products

B

.fumlah ten(1ga bahan tindak bolas adalah lehih danjJadajumlah lenaga hasil lindak holm I kat is rclea')cd

Ilaba dihebaskan

D

The surrounding temperature decrease during the reaction 8uhu persekilaran menunm semasa (indak holas

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J

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/'..<--,

CJ Which of following

is true about the reaction and type of reaction?

Antarayang berikui, yang manalwh henar tentang tmdak halas danjems tindak balas)

Type of Reaction

Readion

Tindak balas A

I

Jenis tindak balas endotherm Ie

Combustion of fuel

I Pem~_~~~~~n hahan api 8

D

rndntermik

, Respiration

endothermic

Respm:!si

rndotermik

Decomposition of carbonate salts

cxothermic

Penguraian goram Iwrbonat

eksotermik

Rusting of iron

lC

PengaT{'ftan hesi 1)S 70 .. d as a me d'IClnC . to ~ ,treptomycm IS usc

.')'treptnmaisin digunakan dalam perubatan untuk A

relieve pain,x(

menguranglwn rasa sakit

~) .J

reduce tension and anxiety tr/!::ngllrcmgkan tekanan dan rasa cernas

C

reduce fatigue

mengurangkan{letihan D

treat intections caused by bacteria

mermvat jangkifan yang disebabkan oleh bakteria

21 Diagram 3 shows the atom symbols of four different clements

Rajah 3 menunjukkan empat simhol atom bagi unsur berlainan

31

y 15 '-J

.

J

?

I

>9z 19

/ .

Diagram 3

Rajah 3

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\Vhich of the following pairs ofelcrnents have the same number of valenee electrons in their atoms'! r.~. tara pasangan herikut, yang manakah mempunyai eleklrort valens yang ,I'oma)

~)

W alld X WdanX

8

X and Y

X dan Y C

Y and Z

Y dan Z

D

Z and W

Zand W 22 Which of the following gives the correct example of the modern medicine?

Anwro yang henk111, yong monakah merupakan conloh yang betlll hagi uhat modcn:)

tviodcrn f£lcciicine

Example

Uhat iV10den

A

I

\

\

B

Conloh

Antibiotics

Paracctamol

AntihiOlik

Paraselamol

Analgesics

Penicilin

Analgcsilc

Penisilin

I\ntidepressant

Amphetamine

IImptammo f)

Antipsychotics

Codeine

Anflj)sikolik

Kodeina

r 23 Which of the following is a llse of cobalt -00 isotope?

,1nlora yang berikul, yang manakah kegunaan isOIOp koba/t·6(P Kill cancer cells

Membunuh sci-set kanser

n

Getlerate electrical energy

Alenjana fenaga elektrik C

Diagnose thyroid problems

lvfenge,wll penyakil tiroid D

Determine the age of the fossil

.Me nl'nl7lkon umur fosil

4541 II

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200') lIak C?ta Pc,abal PclaJaran Dacrah lIulu Lanc:lt, Sclangor

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24 Which of the /i.)l!owing represents the electron arrangement for the compound KCl

'J

Antara yang berikut, yang manalwh mewakili sU.l'unan eleklron hogi sebntian KCfJ

/\

B

c

j.

+

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o

t

15 Diagram 4 shows a simple chemical cell.

tJ". [.p.

Rafah 4 menufljukkun satu .I'd kirnia.

N~

f-l

tV<

.~

". I, ' 1 ' \ [

Ie­

lron electrode

Elektrodferum

~

(l~--·-_copper electrode

:fill

=

Elektrod kuprum

- f{

~p

~~

\:...:::..:::...::.::...:::..:;...::..::':;;::1---- Electrolyte

Elektrolit Diagram 4

Rajah 4

Which (lIthe f()llowing substances in the cell will release electrons') Antara hahan herikul, yang manaknh ukan membe/wskan elektron?

@

Iron Ferwn

B

Copper Kuprum

C

Hydroxide ions [on hu/roksida

0

Copper ( II ) ions [011

26

f)jagrlllll

kuprufn ( [[ )

shows the electron arrangement of an ion formed from atom X,

Rafah 5 memil1fukkan susunan dektron haJ',i ion yong terhentuk daripada atom X.

Diagram 5

ROJah 5

Which ot"the following is true about atom X?

Antaru yang herikut, yang manakah belultentang atom x:) 454 1/ J {) 200') llak e'rL,

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electron

Atom X has

Atom X menerima satu elektron B

lWangan dektron hag! otom X ialah 8 Electron arrangement of atom X is 2.7

Susunan elcktron atom X ialah 2.7 D

X is an clement in Period 3 of the Periodic Table

X adalah unsur dari Kala 3 .!adual Berkala

~2 What is empirical formula of 7, compound that contains 26.7% C,

2.2 % II, 71.) % 0'[

ApokahJormula empirik bagi sebatian Zyang mengandungi 26. 7%C, 2.2%

I Atomic Relative Mass: H =] ,C =12, 0 =16] fJisim Atorn Relatif' II

1,

(> 12,

fl,

71.1%

()?

i./

0 = 16 J

:

:

! .,

A

elBO

~

CH0 2

C

C2 H4 O

D

C 2 H2 0'1

r""

,

"

7:

Zl.. I

I,

28 Table I shows {he nucleon number and proton number of two elements.The letters used arc not the actual symbol ofthe elements.

Jadual1 menunjukkan nombor nukleon dan nombor proton dua unsurllurufyang digunakarI bukan simbol sebenar unsur itu.

Atom

number

Atom

Proton number

Nombor Pr%n ._-_.

J

11

M

17

7

. I

1

Jadual1

Which of the following is tme about J and M?

An/am yang berikut, yang manakah benar fenlang J don A1?

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Atomic si:w of J is larger than M

J\

Saiz atom J lebih besar daripada M

n

Both clements] and M arc metals

Kedua-dua unsur.J dan

c

,II,{ adalah

J /ognm

Both clements] and M in the same group in the Periodic Table ofEJcments

j

Kedua-dua unsur J dan M dalam kumpulan yon,!!. sarna do/am .!adual Berku/u Unsur Elements J reacts with clement M to form a compound with the formula J/\'1?

Unsur J herlindak bolas dengan unsur M membentuk sehalicm denganformulo J\h

29 Table 2 shows the proton numbers of elements Q,R,T and U.

Jadua/ 2 menunjukkan nomhor proton I.lnSlJr-UnSllr Q, R T don lJ.

Element

Q

Proton number

/'

6

lI

9

-"I

,

16 19

['

f

~

')

Table 2

Jodual2 Which of the compounds has the highest melting roint ?

Antara sehatian berikut, yang manakah mempunyai takal lehuryang paling linpy/)

A

QT",. (u

B

QR,J (

r5'D

lhT ,

/f

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30 Diagram 6 shows a voltaic cell Rojah 6 menUlljukkClI1 seblloh sel volloil

Metal P -_·············_--+-+1 rogall7 P -~t--Soltltion

Solution of P

of () sui

Larlll(lII Diagram 6

6

\Vhieh of the following pairs

or mctals

produce the highest voltage'!

Al7lUru paS([lIgarl logulI! heriklll, yWlg l!wtwkoh ll!e'lgJwsilkutl vo/Wn terlinggi"J ;---------

--_.

~_!:2fi(lm

Mct:ll Q

P

J!YfiE-'P1 Q

eu

Mg

A

----

B

In

C

In

~\ D/

-- - --.

-

~-

Fe

---~

-.~------

Mg

V

--

Pb

i\g

] I Diagram 7 below shows the preparation or salt I. gormll Z

Diagram 7 menllnjllkk(1!7

1

•

--preCiPitilt~--~

formed "~'fel1dak([I1----~

terbenlllk

Residue of sal t Z formed iJak i gorum ;;: ferhenlllk

Diagram 7 Rajoh 7 Salt Z is

Clarant ;;: ada/all

A

copper (II) sulphate

kuprulIl (II) suI/Of

B

zinc chloride zink klorida

C

cry

barium nitrate borillm nilrale

silver chloride argentuIJI klorida

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32 Diagram 8 shows the body of the car is made of alloy T. Rajah 8 menunjllkkan badan kereta yang chperbual doripw/o 010/

--b----··.~~···

/\lloy T AI0 I j'

Diagram 8 RCljoh 8

What is alloy T? Apakah aloi T?

Q

r

Steel Keluli

B

Brass Loyang

C

Bronze Gangsa

D

Duralul11 in Dural1lmin

33 Diagram 9 shows the graph of volume of oxygen gas against time for decomposit inn catalysed hydrogen peroxide. / Rojah 9 menunjukkan graf Is/padlt gas oksigen me/mvof] II/osa lin/11k pengllroion hidrogen peroksida bermangkill Volume of oxygen/dm}

lsipodu oksigen / dm;

v,

1/

iT, .

L .'.,.

T

T.;

rime/min Afuso/rn in

Diagram 9 Rojoh 9 4541/ J

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454111

Which of the following statement is true?

Antara penyataan berikut, yang manakah benar?

!\

. Ct)·

.. ,

Rate ofrCaC!lorotlme [2 IS VI

j

..12 dm 3min. -1



Kadar tindok balas pada masa T2 ialall VI / '1'2 dm]min':_

Ratc of reaction is maximum at time T..

/

,/ Kadur findukbalas aduluh maksi(fla pada masa 1'4.

c

Ratc of reaction decrease with time.

Kadar findak balas berkurangan dengan masa D

Rate of reaction is zero at time T j •

/

'/

Kadar tindak balas ialah sifur pac/a rnusu T/

34

An experiment is carried

Ollt

to study the rate of reaction bct\vccn marble chips in excess

of hydrochloric acid using different volumes and concentrations to produce carboll dioxide gas.

Saru eksperimen telah dijalankan untuk mengkaji kadar tindak halos di untara kelUlat1 marm{Jr dalam asid hidroklorik berlebihan menggllnakan isipadu dan kepekaran yang berlainan unfuk menghasilkan gas karhon cliaksida.

Experiment

I lydrochloric acid

Ek.lperimen

/lsid hidroklorik

IT

454 1/1

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7.0

45·11/1 papercollection

Which of the t()l\owing graphs describes the above experiments?

Antara grafherikut, yang manakah menerangkon tentang ebperimen di

alas?

Volume of ear bon dioxidclem) Isipadu gas karbon dioksida /ern'

A

II

--.~-----~~--.-.---"-

G

y

Timc/s A1asa./s Volume of carbon dioxide/em) Isipadu gas karbon dioksida fern)

II Time/s tv1asu/s

c

Volume of carbon dioxide/em} lsipadu gas karbon dioksida /em J

11

Time/s MawI\'

D

3

Volume of carbon dioxide/em Isipadu gus kurbon dioksida femJ

Timcls A1asa/s

454] II

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Vi Diagram 10 shows the structural formula of carbon compound.

Rajah 10 menunjukkan struktur bagi suatu sehatian karbon, /.~-~-'.~"-~'"

/

o II C-O-\CHCH 3 , '.. 2 "

Diagram 10 Rajah 10 The compound is produced by the reaction hetween Ii

))hatian ini terhasil danjmda tindak balas antara

&

r

(

ethanol and propan'oic acid

r -.

etano! dengan asid propanoik B

ethanol and butanoic acid

elanol dengan aSld blltanoik C

propanol and ethanoie acid

propanol dengan asid etanoik D

butanol and cthanoic acid

hutanol dengan asid etanoik 36 Diagram I I shows a voltaic cell.

Rajah 11 menunjllkk(Jr/ set va/tan. t I

I Copper

Kuprum

'./ink

Copper (11) sulphate Kuprwn (11) sulfat Diagram II

Rajah J 1

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Whieh of the following statement are true'?

Amara peryataan berikul , yang manakah ada/ah benar?

Oxidation occurs at zinc electrode

Penguk~idaan

berlaku di elektrod zink

Reduction occurs at copper electrode

Penurunan berlaku di elektrod kuprum I

Jf(

Electrons flow from the zinc electrode to copper electrode

Electron mengalir daripada elektrod zink kepada elekfrud kuprum IV

The intensity of the blue colour of copper (1I) sulphate solution increases

Keamatan warna biru kuprum (II) sulfat meningkat

Q

I, II and III only

B

I, II and IV only

C

I and IV only

D

I, II, III and TV

®ThC manufaetu,e of sulphu"c acid in the Contact Pmec," iovolves in ,I" following steps. Penghasilan asid sul{urik da/am Proses Sentuh melibat/wn lal1gkah-langkah herikut.

S

Which of the f(~owing shows the correct sequence of changes in oxidation numher of sulphur?

Antara yang berikut, yang manakah menunjukkan urutan yang betul bagi pcrubahan nombor pengoksidaan hagi sulfur?

r;;:;

O------P + 2

13

0 ----v +2

D

o

4541/1

-Y

+4

~------v-

+3

-------I>

+4

---i;'

+6

-~

+6

----Y

+6

--y.

+8

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Q

38 Diagram 12 shmvs the set-up of the apparatus lIsed to electroplate an iron Spoon \vilh copper. Rajah /2 menunjukketn slIsunan radas yang digunakcln IIl1luk menyadur slidu besi del/gun kuprllm

Copper foil Kepingon k1tprlllJl

Iron spoon Sudu /Jesi

Copper (II) sulphate solution Larll/elf! kuprwn (11; sulfa/

Diagram 12 Rojah What is observed at the anode and cathode after 30 minutes'! Apokah yang diperhalikun eli

dUll

di ku/od

30 minif?

Anode

Cathode J(utod

Allad

deposits formed

foi I becomes th ickcr . kllprum menjadi lebol

perang lerbentllk

deposits formed Enapan perang lerhenluk

c

deposits ti:mned Enapan perang lerbelltuk

D

4541/1

Gas bubbles re leased Ge/ernhung gas ter/Jebas

Copper foil becomes thinner V

bubbles released

Kepingwl kuprllm menjadi nipis

Gelemhung gas terhe/ws

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3LJ The following equation shows the combustion of heptane, ell C(" in excess oxygen.

Persamaan lindak bolas berikul memmjlJkkan pembokaran heplana, C;H 1(" dolom oksigell berfcbihan.

/} f\~Cd ~ 1 I C 71I16 +

J

I O

-~.. ---i>-

2

7CO

2

+ 8l-hO ,

The comhustion of heptane in excess oxygen releases

1.'1.11 = -5512 kJ moll

J

378 kJ of energy.

What is thc mass of heptane used? IRelative atomic mass: II

J ,C ~-121.

Pcmhakaran heptana dalam oksigen herlebihan membe/Joskan 1 378 kJ leno/!,o Iw/w

IJerapakahjisinl heplana yang digunakan? [Ji.l'im atom relmivp..· /1=

1 ,...-

0

25.0 g

13

36.0 g

C

77.0 g

D

88.0 g

'-./

f,

C=, J 21

(:::/\1'

v

/ ~



til

("~12 ~

.-c____ "",·

.i

40 The ionic formulae of clements X and Yare as follows:

M:::IJ,l.S

Formula ion hagi unsur X dan Y ndal(]h seperli beriklll.·

2­

y The compound is fonned from the reaction of ions of clements X and Y has thc formula ionic equatioDsreprcsents the reactions'? ',-,"-", __

~.,

•• _ . .

____

~.

,

d­

Sehalian yang lcrben/uk daripada tindak halas anlara ion zmsur X dan ion UfiS/lr Y mempunyaiformula X 2YJ . Anlara persamaan ion berikul yang manakah mewakili linri(lk balas ilu?

X3;

!\

A

19/ 1-

~

n

454

J/

I

+ y2

-~-.~

X2 Y]

3Y

-~----~~

X2 Y,

2X 2XI! +

3y2~

3XH +

2y2~

-

~

X 2 Y)

~

X2 Y3

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4\ What is the volume of distilled water that should be added to 25.0 cm J of 0.5 mol drn J

sulpburic acid to produce a solution of 0.1 mol dm- J ?

Apakah isipadu air suling yang perlu ditambahkan kepada 25.0 em) 0.5 mol dm.! asid suljim'k unlu.k menghasilkan larutan dengan kepek.alan 0.1 mol dm- l

A

75.0 em]

B

100 cm}

?

125.0em J 150.0 cm 3 /~\

I I

42)Diagrarn 13 shows the graph of volume of oxygen gas released against time for the ;

(_/ decomposition of potassium chlorate (V). Rajah 13 menunjukkan graf isi padu gas

ok~igen

terhebas meirrwan masa bagi

penguraian kalium klorat (V). Volume of oxygen/em 3 Isipadu oksigenlem 3

V /

~~~~--ij;,.-

Time/s Masa/s

Diagram 13

Rajah 13 I

Which of the following can be deduced from the graph?

Amara yang berikut • yang manakah dapat disimpulkan daripada graf)

The rate of gas released at time t2 is the highest

Kadar pembebasan gas pada t2 adalah paling linggi. II

The decomposition of potassium chlorate(V) reduces with time.

Penguraian kalium klorat {11 berkurang dengan masa.

The average rate of gas released for overall reaction is Viti em 3

Kadar purata pembebasan gas keseluruhan ialah VI!1 em

IV

The rate of gas released at time ~2 is V/t2 em

Kadar pembebasan gas pada masa

4541/1

I]

J

3

.'1-

S-I

1

S-l

ialah Vlt] cm 3 s·1

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A

I and II only

4'i41/1 papercollection

';/

I dan II sahaja

II and fII only

R

II dan 111 sahaja ,

,,/'\

#C

I, II nnd III only

1

I, II dan 1fJ sahaja

T, II, III and IV

D

I, II, III dan IV

43 The infonnation below shows the results of an experiment to determine the heat change

for the combustion of ethene.

Makilimal berikul menunjllkkan keplilusan bagi salll ehpcrimen untuk menenlllkllrl perubahan habo bagi pembakaran elena.

0.35 g

Mass of cthcnc

(

Jisim elena VO~llC of water

I

\~

Isipadu air Initial temperature ofwatcr

Suhu awal air Highest temperature of water

Suhu maksimum air

What is the hcat of combustion of cthcnc?

/

Berapakah haba pembakaran elena?

:1:'

Fe

V

10.5 kJ.

./

{ -I / V')

I

R

2 \.0 kJ

C

168.0 kJ

D

840.0 kJ

4541/1


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44 The equation represents the action of heat on calcium carbonate, CaCO].

Persamaan mewakili tindakan haba ke atas kalsium karbonal, ('aeo].

+ CO 2

CaO

If 0.2 mole of calcium carbonate

is heated until no further change, what is the mass or

calcium oxide, CaO produced? [ Relative atomic mass:C

12, 0 = 16, Ca = 40

J

Jika 0.2 mol ka/shlnl karbonal dipanaskan sehingga rioda peruhahan, herapakahjlsim kalsium oks ida, CaO yang terhasil?

r Jisim atom relati{C

12, 0'" 16, Co "" 401

6,1 V

A

/\

5.6 g

U>/

i1.2 g

C

16.8 g

D

22Ag

45 Diaf,,'Tam 14 shows the set-up of apparatus for a double decomposition reaction.

Rajah 14 menunjukkan suszman radas bagi tindakbalas penguraian ganda dlla

/JC' z5 fJy -7

JLII f.)O'1; -{ Calcium nitrate solution l,arutan kaisium nilrat

,.. 1 ;

.

J....

r.

------ii.>­

SOlutio~~

Calcium sulphate

~r ~r

J"7:L-l- ~odium

nitmt solution J.arutan natrium mtrat

Diagram 14

Rajah 14 Which of the following statements arc true for the reaction above?

Antara pernyataan berikul, yang manakah benar bagi tindakbul(ls di alas?

r Jisim molekul relati/CaSO

454111

q

/

.

sodium sulphate 50cm l larUlan natrium sulfa{ 0.2 mol dm']

[relative molecular mass CaSO~

./

·:::::~7":.dkaISiUm sulfat

l'

~'/IIf

SOcm 3 of O.2mol dm')

i

~'/,*.:-L J

CVii0't

"t) j·)fJ£1 f.J! 7

~ I" ('LI

.

c.

~ -::7>

I

136, Avogadro constant 136, pema/ar Avogadro

<02009 Hak Cipta PCJdbat Pdajaran D.crait Bulu Langa!, SClafl!;Or

6.02 x 10

6.0.? x 10

23

mn!,l ]

23 mo [l,

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)

SULIT A

23

4541!l papercollection

0.68 g calcium sulphate arc produced.

068 g kalsium

GJ

SUlftll

lerhasil.

0.02 mol sodium nitrate arc produc.ed. 0.02 mol natrium nitral terhasil

C

0.10 mol calcium nitrate arc used. O. f a mol kalsium nitrot dit,-rtmakan.

o

0.01 x 6.02 x 1023 sodium ions, Na+ arc used.

0,0 f x 6,02 x f 023 ion nmrium , Na! dig-unakan

46 Number

08

that contain 3'6 g

of:~~trC:s equal to

Nombor atom yang mengandungi 36 g air adalah sama dengan

l Relative atomic mass: H= 1, C= 12, S= 32, 0= 16 ] I Jisim alOm relalJ'(' H=1 , C= f2, 5'= 32,0= J6} A

4 g hydrogen gas,

H2

/

r:

.....­

,.,~.

4 g gas hidrogen , 112 I

B

64 g gas oksigen, 02 C

( i ;'

64 g oxygen gas, O 2

!.;

I

,­

r

I

:i

64 g sulphur dioxide gas, SO] 64 g gas sulfur dioksida./·;,(J2

f0

CJ

88 g carbon dioxide gas, CO 2

88 g gas karbon dioksida, C(h

47 Astatine is placed below iodine in Group 17 of the Periodic Table. This shows that

Astalin terletak di bawah iodin dalam Kumpulan f

dalam Jadual 13erkala Unsur

ini menunjukkan bahawa

A

astatine is more reactive than iodine.

astatin lebih reaktif berbanding iodin B

astatine can displaced iodine from a solution of iodide ions, a~tatin

C

holeh menyesarkan iodin daripada larutan ion iodida,

astatine is more electronegative than iodine

astatin lebih elektronegatij'daripada iodin astatine has a higher density than iodine

astatin lebih tumpat berbanding iodin. 4541/1

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C (;

ii.

48 What is the concentration of the solution produced when 25 cm' 01'0.50 mol dm') sulphuric acid is added to 25 cm J of I mol dm'] sulphuric acid?

Berapakah kepekatan larulan yang lerhasil daripada campuran 25 em} larulan asid sulfitrik 0.5 mol dm'3 dengan 25 c,,/ larlltan asid sulfurik 1 mol dm'3 ? (; ,i) ,

r '~L '7

.

./

0.0475 mol dm')

I3

0.475 mol dm'}

C

0.75 mol dm- 3

D

0.90 mol dm"

49 When clay is heated with magnesim oxide, it produces a type of substance with very high resistance to heal. This type of substance is used to make

Apabi/a tanah fiat dipanaskan bersama magnesium oksida, lerhasil sejenis bahor! yang talum haba yang sangot tinggi ]Johon in! digunokrIn un/uk

;\

perovskite

perovskire B

photochromic glass

kacajhtokromik C

conducting glass

~

kaca kondllktor car engine block

hlok in/in kercta

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30 50 Diagram 15 shows three iron nails which arc wrapped with mctals P,

papercollection

0

and R and placed

in hot agar solution containing potassium hcxacyanofcrratc (Ill) solution. RaJah 15 memmjukkan tiga paku yang dibalut clengan togam P, Q dan R dan dimusukkllil ke dalam larulan agar-agar panas mengandungi larulan kalium heksasianoferat (111)

Iron +- P Besi + P

Iron -t R

fksi + R

Iron + Q Besi + Q Diagram 15 Rajah 15

After two days, the results obtained are shown in the tabiL: below.

S'elepas dua hari, keputllsan yang diperofehi dilunjukkan di dolam jaduo/ dihaH'ah.

Arrange in decreasing order metals P,

0

and R bascd on the clcctropositivity of thc

metals.

Susunkan secara menurun logam P, Q dan R berdasarkan keelektropositiji:Jn logam.

R

Q,R,P P,R,Q

D

.0, £1, R R, P, 0

A

r I

END OF QUESTION PAl'En KERTAS SOALAN TAMAT

454 J/I


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SlJLIT 4541/ 2 Kimia

Kertas 2

Nama: ............ .

Angka Giliran : .................

Kelas : .............. \............... .

2009 21hjam

-'-Yn·y1;~;'N,--c.J i'EJ..IJ>AlftlJ,Ju.,u,:CAfRAlli!!Jlij~J

PEJABAT PELAJARAN DAERAH HULU LANGAT

SELANGOR.

PEPERIKSAAN PERCUBAAN

SIJIL PELAJARAN MALAYSIA

2009

KIMIA

Kcrtas 2

Dua jam tiga pUlllh minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBEIUTAHU

Tutlskat! nama, kelas dan angka gilirall undu

pC/da ruung([11 yang disediafwn.

Kod Pemeriks(I

Markah PCl111h

Kerlas ::;oa/Ull ilJi adalah dalnl11 dwibailasCl.

3.

Sew/an di halaman kiri adalall dalam Bahasa SOli/an di halamal/ kanan ada/ah da/wil

Bahasa Inggeris.

4. Calon dibellurkan menjmvab keselllruhall aUnt .1'0[[1011 soma ada dolam bahaso

Markah

10

A

I3

c Calon dikehendaki membaca maklumal eli

ha/amall 2 atau halaman 3.

Kcrtas smdan mi

dan

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.il'IAKLUMAT UNTUK CALON

1. Kerlas soa/an ini mengandungi liga bahagian: Bahagian A, Bahagian B dan Bahagian C.

2. Jawab serouR soa/an da/am Uahagian A. Tillis jawapan bagi Bahagian A cia/am wang Yang disediakan dalam kerlas :walan. 3. Jawab ."lulu s(wlan daripada Bahagian B dan sotu sua Ian daripad(/ Ballagiatr C. Tuliskan jawapan bagi Bahagian B dan Bahagian C pada halaman bergaris di bahagian akhir kertas .<;Galan ini. Jawab Bahagian B dan Bahagian C dengan terperinci. Am/a bo/eh menggunakan persamaan, gambar rajah,jadua/. grafdan cara lain yang sesuai untuk menjelaskanjawapan anda. 4. Tunjukkan kerja mengira, ini membantu anda mendapatlwn markah. 5. Sekiranya anda hendak membalalkan seslIalujawapan, buat garisan eli atasjawapan flu. 6. Rajah yang mengiringi soalan tidak dilukis mengikul skala keeuali dinyatakan. 7. Markah yang diperulltukkan bagi 8ctiap soalan atau ceraian s(w/an dilunjukkan dalam kurungan. 8. Masa yang dicadangkan untuk menjawab Bahagian A fa/ah 90 minil, Bahagian B fa/ah 30 minit dan Hahagian C ialah 30 minil.

9. Anda dibenarkan meng},'1lnakan kalku/ator saintifik yang tidak bo/eh diprogramkan. 10. Serahkan semI/a kertas jawapan anda di akhir peperiksaan.

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IN.'ORMATION Fon CANl>Il)A'fES I. This question paper consists 0/ three sections: Section A, Section H and Section C.

2. Answer all questions in Section A. Write your answers/or Section A in the space:,' provided in the question paper. 3. An.nver one question/rom Section B and one question/rom Sedion C. Write your answers for Section B and Section C in the lined pages althe end o/the queslion paper. An.vwcr questions in Section B and Section C in detail. You may u:.e equation.v, diagrams, tables, graphs aud any olher SUi/able method to explain your amwer. 4. 5'how your working in calculations, it may help you to get mario'. 5. IIyou wish to cancel any answer, neatly cros.\' out the answer. 6. The diagrams in the questions are nol drawn to scale unless slaled. 7. Marks a/located jor each question or parls there 0/ are shown in brackets.

S. The time suggested to complete Section A is 90 minutes. Section B is 30 minutes and Section C is 30 minutes. 9.

to.

YOIl

may lise a non-programmable scientific calculalOr.

!land in all your answer sheets at the end o/the examination.

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4

Section A Ba/wgiall A [60 marks] [60markah} Answer all questions in this section. Jawab semlla solan da/am bahagian Inl.

!.

Table 1 shows the electron arrangement of elements X and Y. Jadual j menllnjllkkan susunal1 elektrol1 bagi unslir X dan Y. -"~-"----

- - - y _.._ ._ _.._ . _ . _ - _ . _ . _ - - _ . _ - - ,

Element Unsur

Electron A.'rangement SllSlll1an elektron

X

24

Y

2.X.l TABLEl Jacillull

(a)

What is the proton number of clement X? Apakah 110mbor protol1 bagi unsur ~7 ...........~............... , .................... .

(l mark] (b) (i)

X is an isotope of an clement. What is meant by isotope? X merllpakal1 isotop bagi sCllu 11I1Sur. Apakah yang dimakslIdkan dengan isolop?

.. h.q~r ... i~ .. oth~ .. !C1.\'I:1.f ... {!~~~.~f.....\I"h'.~h. J~tle .. M.tf.v.e.~t ... /I~~t{~I'l .. n~mkY Jlt)~.... IlHn( (ii)

pntl'ofl

!M1I1~.£r·

[1 mark]

X consists of several isotopes. Give an example. X terdiri daripada beberapa isotop. Berika}1 satl! contoh.

....... ,....... (~.~.~a(l ....~.~................. ,................ ,..................................... ,..

[I mark]

(c) (i)

Atom of clement Y has a nucleon number of 2.3. Calculate the number of neutrons in atom Y. Atom ul1sur Y mempunyai nombor nuk/eon 23. Hitung/mn bi/(/ngan nelltron bagi alom y,

h, . [1 mark]

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5

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Write the standard representation of atom Y. Tuliskan simbol atom unsur Y.

....... Y..~ ....::.................................................................................... "..

[1 mark]

(iii)

What is the physical state of ethanol at room temperature? Apakah keadaan jizik etanol pada suhu bilik?

". JI4/.1Jd................. ~ .........................................................

[1 mark]

(d)

Ethanol is an organic compound. Its melting point is -117°C and its hoiling point is 78 uC . Etanol lalah satu sebatian organik dengan takat lebur 117 tJC dan taka! didih 78 v('. (ii)

Draw the arrangement of particles of ethanol at 100°C. Lukiskan susunan zarah elanol pada 100°('.

0 r', '-..J

0

0 C) [1 mark]

(iii)

Stale how the movement of ethanol particles changes when heated from room temperature to 100°C. Nyatakan bagaimana pergerakan zarah-zarah etano/ berubah apabila dipanaskan dari suhu hi/ik ke 100

0c.

., ..~!~y~ ... !t{ll~.dm!~...'.~ .................................... ,................................... '.... ,

[J mark]

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SULIT (iv)

6

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Sketch the graph of temperature against time when ethanol is heat cd from room temperature to 100 nC. Lakarkan graJ sulm melawan masa apabila etanol dipanoska/1 daripada slIhll hilik ke JOO °c Tcmperaturef'C Suhuf'C

/

/ [2 marks!

~--------------------------~

Time/min

Masalmin 2.

Diagram 2.1 shows a packet of chilli sauce. Uajah 2. J menulljllkkan sa/II pakel sos cili.

Ingredients: Bahan kandllngan : Sugar, chillies, vinegar, salt, modi fled starch 61ft/a, cili, ellka, garam , kallji yang dillbahslI(li

DIAGRAM 2.1 RlIjulr 2.1 According to the information given, answer the following questions. Berdasarkal1 maklumat yang diberi, jawab .malar! berikut.

(a) (i)

Namc one food additive used in the ehilli sauce, Namakan saW bahan tambah makanan yang digunakan da/am

.lOS

cili,

.. ,. ,r! .eJ.(~(1,{!~~.., ... ~ . ' .. " .... ' .. , ,. , .. , .. , .... ,.' .. , ....... ,. , , .. ' . , .... , . , ' . , ' ... ' . , . , , .. (I markJ

454111.

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(ii)

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Which ingredient is a flavouring agent ?

Yang manakah bahan kandungan adalah agen perisa?

..... v.ln ~10r. :................................................................................



II markJ

(iii)

Why is the modified starch used in the chilli sauce?

Mengapakah kanji diuhahsuai digunakan dalam .'lOS cUi ?

....),0... ~~~ ~~~J ... f.h. ~... fr!} .. f:y.~ ....~~.I~A~.~J~ .0.:.. t<

................................

[1 mark]

(b)

Table 2 shows three types of modern medicine.

ladua/2 memmjukkan liga jenis ubat moden.

Type of medicine

.Jellis ubat

Analgesic

analgesik antibiotics

antihiolik psychotherapeutic medicine

TAJU,E 2 Jadllall (i)

Aspirin and paraeetamol are the examples of analgesics. Aspirin is not suitable to be given to children. Give one reason.

Aspirin dan paracetamol adalah conloh ~/bal analgesik. Aspirin tidak sesuai diherikall kepada kanak-kanak. Rerikan salu sebab.

. . }~~~~J!' ...iJ..

.

(ii)

~.~~! ... ~~.~!p '" .'tL1t:':~~0~ .. }! !.l.4!~.1 .. }t... .~~.l. .. ~hj.).d....................... -(

II

markJ

A patient is treated with antibiotics must complete all the supply given by the doctor order to make sure that all the bacteria arc killed.

In

Seorang pesakit yang dirawat meng?,Unakan uhat antihiotik perlu menghahiskan semua hekalan uhat yang diheri oleh doklor untuk memastikan semua bakteria lelah dihunuh. What will happcn ifnot all the bacteria arc killed?

Apakah yang akan berlaku sekiranya adak semUQ bacteria dibunuh?

.. .1b.f<. J t1d.c ~10. .....Vll.dJ. .l~~.1f1. ~ ~.~ ..... :.; ..... ,............... \'. 0>

:.... .

[I mark]

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(iii)

Barbituratc is one example of psychotherapeutic medicine.

What is the side effect of this medicine?

BarbilUrat ada/all satu i/aripacia COl1lOh uhat psikoterojJu{ik Apakah kesan sampingan dnripada pengambi/o/l ubat ilJi?

wdl l.tl5 SiII\1I.1IVlfol· .J ., ~V/.iIYl ., ..... , ......................... " . , ...... ..... . " .. ............. , .. ,.

'

(1 mark] (c)

Diagram 2.2 shows two structural fonnulae of cleaning agents. Rajah 2.2 menunjukkal1 dua/ormula slrukiur bagi agen pencue/an,

Cleaning agent A Agen pef/cuei A

Cleaning agent B lIgen pencuci H

DIAGRAM 2.2 Rajah 2.2 (i)

What type of cleaning agent is substance B? Apaka/zjenis agen pencllci bagi bahan IF

··~·r·:·····,··············· Oi)

[1 mark]

Which cleaning agcnt is more effective in acidic water 'J

Agen pellcud yang manakah lcbill herkesan da/am air herasid '!

(

,....., ., .. .' ,crfawn~.. ,~1~hf.. :11-. ,' ............ , ...... , ....... , .... . [J mark]

(iii)

Vxrlain brielly why the cleaning agent slated in c (ii) is more effective in acidic water. TerangkarI mengapa agen pcncuci yang dinyma/wn eli c (ii) I('hi h herkeson dalam air herasicI

[2 marks]

SULlT 3.

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9

Diagram 3 shows the apparatus set-up of a Daniell Cell. Gambarajah J menunjukkan susunan radas bagi sci Daniel

----(j) -[ {\ \'

,'111

i, 11

[

Zinc electrode

_.

Elektrod Zink.

11:_ :.

~

~l.-:

, su Ip h ate so 1ullon Zmc ./ Larutan zmk sulfat

-_- -- -

-.

- ~ -.: ------_.

:=:-_~:

~ Yl.

I

~

r

;,

-~

(.,,) I:; :i'l

:

(

Copper 61ectrode

Uektrod kuprum

Porous pot PaSlI berlzan9,

Coppcr(fl) su,phate solutIOn /,(lrutCi/1 kuprum(lf) sul/ell

DIAGRAM 3 Rajah 3 (a) (i)

State the direction of the electron flow ill the cell. Nyatakan arah aUran elektron yang herlaku da/am sel tersebut.

[1 mark 1 (ii)

Explain your answer in (a) (i),

.leiaskan ja>vapan anda di 1(a) (i).

h(~0.J ,~, ..,7.t~~"., ~IJ".t!1P. r. t ,~~!ttD,fOdihvf '" ~fA, n..t~c.PR~~.:, .I~ .. A~,. ,el ~,~f'?0~f!1.·I, ~~/ miIJ . Th(V(ivtl(

(b)

VIl-H

...;ilt IHi

(.(J

flcgMI'J( tlYfI1 ll')Pi1 in tl,{ (ell·

[1 :nark]

Why is the porous [lot used in the cell? Nlengapakan set ini menggunakan pas!I herliallg?

... J.d... MJ..., JL ,rI1H.. jri.~.{:, ........ ~......... _..,...,' .. _.."., ... ,...,.... ,., ......... '.. ,... ,',., ...... ,.

[1 mark] (c) (i)

State the change in colour or copper (II) sulphate solution'! Nyatakan perubahan vvarna yang fjer/aku pada larutew kuprmn (fJ) suijLa?

.... K~mktw..... ~.nkh~.~.1.~ .:..... ~......."'.....,.. ,.."." . ,.,.......,....,...."......,.. ,.. "'.. ,...,,','.""'"

[I mark] (ii)

Explain your answer in 1 (c) (i) .lelaskan jawapan anda eli 1(c) (i)

.,~Wl(t1H", ... th.ll"., ,~v.m~.~j~,1.Qr .. ,1)1:. .. J{lfP.tY. .~Jl.)~.I,ph ,1:1, re.., ).61.VI.ti~J' v\~v~~nral

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SULIT (iii)

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Write a half equation for the reaction at the copper electrode.

Tuliskan persamaan setengah yang berlaku pada eleklrod kuprum .

...................... .fe.~.. .f..?f.. .:-::-?!e..........~ .......................................................................

[I (d) (i)

m~;rkl

State one observation at the zine electrode.

Nyatakan sattt pemerhatian pada elektrod zink.

............1' n~...... ~kHw. J(.... :~;!! .... h.<~.~.f ... .#!l!l~.e.r.: ..

[1 mark] (ii)

Write a half equation for the reaction at the zinc electrode.

Tuliskan persamaan setengah yang berlaku pada elektrod zink. ,

In, ..... -7 .......... Ihli ...... ~ Z'-, ....... .. .................... ................... ....... ~

~

,

~



,

,

,

,

..... , , ..... , ............. , ... , .....

'

.... ,. , ... " .. .

[1 markl

(e) Your friend, Ali said that it would be better to use magnesium ribbon in magnesium sulphate solution instead of zink plate in zinc sulphate solution. State whether you agree with him and explain why.

Rakan anda, Ali menyatakan bahawan lebih baik menggunakan pita magnesium dalam magnesium sulfat daripada kepingan zink dalam zink sulfat. Nyatakan sarna ada anda bersetuju dengannya dan terangkan mengapa.

,., ... J~) ... {... p'««~J.e. .... .1~~'I.f(}~i rlOn ..... 0 f.... M?6 ~rJj~fr!.....I.n. .... .ike.... fJ.(dll?,(h(~.!Ul.I .............

.......KV!P......LL... h~~h{v.... J~.M ... Jh1,L.:.................................................................................

)"".

[2 marks]

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A

TABLE 4.1 Jadual4.1 Table 4.1 shows the formulae of two compounds.

ladual4.1 mellunjukkanformula dua sebatian. (a)

Based on the Table 4.1

Berdasarkan Jadual 4. J (i)

eompolln~l A according to the TUPAC nomenclature. Namakan sebattan A mengikut penamaan JUPAC.

Name

. Jr.; ... (~'f.e/~ .. O..(.'~c. ... l,~ .................... ·.............................................. . 6; jodwm J~lp~ah· [1 mark]

(ii)

Calculate the oxidation number of sulphur.

I-litungkan nombor pengoksidaan sulfur.

........ ~ .tl.'f:. f..(--:~)':?O:.................... ,....................................................

.1 ti -<'~ ;:: 0 . ·.,.Y ..~ .6",., ... ,.....; .1.' • . H1.( ...tJ~ikt@J.,'. IH'\fnb.{t. ...~ f .. N!fhw..f:-r. :1.1 . [1 mark] • • . . • • . . . I •.

(b) Table 4,2 shows the equations of chemical reactions. ladual 4,2 memmjukkan persamaan bagi tindak balas kimia .. ,--- - - - - - - - - - - - - - - - - - - - - - ,

Ch cmical Reactions

Experiment Eksperimen

I

II

Tindak balas Kimia

N aCl (aq) + Pb(NO))2 (.q) NaCI (nk) + Pb(NO]h (nk)

"._..

­

2NaNO J(aq) + PbCh(aq) 2NaNOJ(ak) + PbCl 2((lk)

NaOH (aq) + HCI(aq) - . NaCl(Bq) + H2(aq) NaOH (ak) + HCI (ak) - - - . Nael(ak) + H](ak) --

III

---.

---.

M&,) + CuO(s) Mg(p) + CuO(p)

-------------------

- - - . MgO(s) + Cu(s) ----+ MgO(p) -I- Cu(P) --.~-

-_.

TABLE 4.2 Jadua/4.2 454112 © 7.009

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SULIT

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(i)

Which of the chemical reactions in Table 4.2 shown is redox reactions. A1anakah an tara tindak balos kimia yang diberikan dafam Jad!lal 4.2 mcrupo/wil tilldak balas redoks?

l .......... ~ (i i)

.........................................................................................

[1 mark]

\Vhat is meant by redox reaction') Apakah yang dimaksudkan dengan tindak balos redoks'? )

I

.. K4! Q1:, .. u:({4f!~ n.. ..t/....Qtil{f.t~~ n.... Md .. .r~dil.c:f~cI(l.. .~l1ff~h.J ... )t~~I+.VI~~(}I4J0 In u .rR~d~~~'................................,... ' ,................................ [I mark]

(c) Diagram 4 shows the sct up of the apparatus for an experiment to investigate e1ectroll transfer at a distance. Rajah 4 menunjukkan slisunan radas bagi salu eksperimen un/uk mengkaji pemindailan elektron pac/a sualujarak.

Carbon rod Rod karbon

Carbon rod Rod karbon

A

.~m~(Il)

sulphate solutlon Larutan Ferum (II) sulfat

Ii,.

Acidified potassium manganatc (VII) Kalium manganat (VIIj berasid

--

-

- -- -- --- ..... --:­ - ..... _--:;/= .. - ­ - -

-- -';: :'Z

)

Dilute sulphuric acid Asic! s!11fi/l~ik cair

DIAGUAM 4 Rajah 4

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SLUT (i)

Name the reducing agent in the experiment. Namakan agcn pcnurunan dalam cksperimen tersebut.

........:........ f~~.~ ..LYJ ... ~on).: ............ ......................................................

[1 mark]

(ii)

State the type of reaction at cledrodc A. Give a reason for your answer. Nyatakanjenis lindak bala.l'pada elektrod A. Berikan sehab bagijawapan anda .

.. :Oii.d ~{I.Qn:. J.. Je/~J.1J~ .... ~~.... ~/IA~~~ p. .. .~l1rJ.~.V ...DJ..!.~ ~:.. )P.~~<~.~~............. to fe:3 t . [2 marks]

(iii)

Write the half equation for the reaction at electrode A. Tuliskan setengah persamaan bagi lindak hulas yang herlaku di elektrod A. feLt -1

t(?t t

e. [1 rw'rk] j

..!

" ••

i ~ \ ,./

(\ir.·' '.

i

A mixture of metal and metal oxide is heated strongly. The observations are shown in Tahle 4.3. Satu campuran logam dan logam ~}k.l'ida dipanaskan dellgan kuat. Pemerhatian ada!ah seperti eli JaduaI4.3.

(d)

Ohservation Pemerltatian

Mixture

A glow of f------~L-·------------~--------~-----------

Baraan

-------~----------j

No change

A glow of light Baraan

oks ida logam F:

No change

D and oxide of metal B

B No ch:m['"G Tim/a

D and oxide of metal E [) don oksicia r: TARLE 4.3 Jadual4.3

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(i)

Arrange metals A, fl, C, D and E accordingly to dccrcusing rC;lctivity of the rnctuls towards oxygen. ' SUSUII logam-Iogam A, B. C. D dan E mengikut turutall menurun kcreaktiJeJn !()gum­ logam (ersebu( terhadap oksigen ..

V. ...; ••••••••..•.•.••• "AJEtl?/L..••••••• , •..••.. 1.•.•......•.......•.............. , ...... , " .......... , ... . [J mark]

(ii)

Predict whether a reaction will occur when a mixture of mctallJ and oxide of metal C is heated strongly. Ramalkan sama ada tindak balas akan berlaku jika campurall /o,!',am 1) chm oksida /ogam C dipanaskan dengan wat.

........ h~... (f?1 ~~.I~.f) ..... ?4-.~~.: ........ ,...... ,

[J mark]

5.

Figure 5 shows the flow chart fOf the reaction of zinc nitrate solution Rajah 5 menunjukkan carta aUr bag; andak balas yang dijalankan ke {lras lantlan zink nitrat. Zinc nitrate solution Larutan zink nitrat

Reaction I Tindak balas I

Zinc hydroxide Zink hidroksidu

..

+ ammoniCl solution /arulfln ammonia

Reaction I

+ substance J

Tindak balas II

Bahan J

Zinc carbonate zink karbona!

Reaction III Tindak balas III .. I-leat dipanaskan

LI

I

Substance K + gas Bahan K + gas L :_~ _~._

_______.. _.. _..

'

. _J

FIGURE 5 Rajah 5

(a)

Name all catio6s present in zinc nitrate solution Namakan semua kation yang terdapat dalam larutan zink nitrat,

............! ~~ ..... /:............ ,...... ,........... , ................ .

I

454]12 e 2009 Hale Cipta Pejabal Pelajaran Dacrah Iluiu Langa! SdangOi

1 markJ

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r: J

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15

State the observation when zinc nitrate is mixed with ammonia solution in reaction I Apakah yang dapat diperhatikan apabila lurutun zink nitrat dicumpur dengan lanttan ammonia dalam Tindak balas I ?

(b)

.. Zin ( .. 1'u.1I:~t.{ .. .J.~I~t!! n... .~IJ~ ~~~ ... I.~ .... 0.,!,!~~.'.0 ... .l.~I~.tI.~ n.: .. .x............ .. .

[2 marks] (c) (i)

Suggest one substance for J Cadallgkan satu bahan J .

. S~dl.lIt"1. Jav.haM..t. ..... /. [ 1 mark]

(ii)

Write the ionic equation fOf reaction II Tuliskan persamaan ion bag; Tilldak balas II.

... .Zn. N.~:.> .. .t .l'f/A..f)J ... :-1.... 1-.1}. f!!"b .. :l: .. N.f:i N~.y. .... .. 1: .................. .. [ I mark]

(iii)

State the method used to separate precipitate of zinc carbonate from the mixture in reaction II. Nyatakan kaedah yang digunakan untuk mengasingkan mendakan zink karhonat daripada larutan campuran dalam Tindak balas II.

.. ~H ...F1Ju. J~~'~ "J.. ..f.o" .fjn(~ ... l\I)IX.{~X t.. ., ...fu c.. rJ!,{V Ij ihmdllm w~1h wHtO' 61nd then efv~

w.rd...Q(l... fhr..'!!I1{Y.. ..

(d)(i)

t(f .

[ 1 mark]

Name substance K Namakan bahan K.

[ 1 mark] (ii)

State the colour of substance K while hot and eold Nyatakan warna bahan K semasa panas dan semasa sCJuk.

... n~ .....~hf~ ....h~.f ....,..LNh1ft

.. wpm.... ~QJ.d.: ... ...X' .................... .

( 1 mark]

(iii)

")

Describe one chemieallest to verify the p,cscncc of gas L fluraikan .wlll ujian IInluk mengesahkah kehadir(Jn gas L

.J,qN.... fh~ ...~N ... .tQ .. ..I.1.m.~ ... ~~1ft .. I .. . ['.Me .. tf.rlfw ... ~I! ..

.............

.. .1lA/Q ....~I.I1.~~.~ .. :......................................................................... .

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1,2 -dibromopropane 1,2-dibromopropana f'

I

Propanol

Propanol

Of.. V' +)\1 l ·

IV

'

J'7 (

Propene Propena

III

fL

I,

,­

'i'

II

/ r~ "

Polipropcne Polipropena

P'Y ,I

I-bromopropanc 1-bromopropana

FIGURE 6 Rajah 6 FIgure 6 shows a l10wchart of conversion of propene to scveral other substances. Rajah 6 menunjukkan carta alir penukaran propena kepada beberapa sebatian fain. (a) (i)

Name the homologous series of propene. Namakan siri homolog bagi propena .

......... .41 ~.<M".: .. ,............................................. ,....................... . [1 mark] Dra'..\r the structural formula for propene. LukisJhrmula slruklur bagi propena.

(ii)

-!i

\ [1 markl

(b)

Propene can undergo addition re,'ction (0 form 1,2 - dibwmopropallc and bromopropanc. Pr(;pcna boleh II1dakukan linda/( /)(iias penamhaha17 memhentuk 1,2-dibroJnopropww dan 1-hmmopropana. 1

State the rC
ILihat scbe!ah sm,~

i'

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(i)

... b,(~/t1.m.t ...

reaction I:

!P....~~.f~r. ............

Tindak balas I:

I

II markl

r fl"b

o ¥It ., ... , . , reaction II : ....... Iy)~n()(\'l:~l' ...... , , .. ,r-p.f~.~..... '< Tindak balas II :

(ii)

J . , •• , , •••••••••••

[1 mark]

(e) Propene can undergo reaction II to fonn polypropcnc. Complete the chemical equation.by writing the structural fonnula ofpolypropene Propena boleh menjalani perubahan II membentuk polipropena. Lcngkapkan pcrsumaan kimia dengan menulisformulastruktur hagi polipropena. >1 (I , H H II ; ( /

I

c==c I

C--H

II

II

n

J

I

I

I

/ c-'

'"

1- I ],

), ~I

1.../

\

1

L

n Y

II

mark]

(d) Given are the structures of compounds A and B. Diberikan struktur bagi sebatian A dan B.

II II 1

H--C

II

11.

1)/

C--- C

I

I

H

H

;.r- 1;1,··, U,.

II

1I

="" C--II

1

,.,fr':::'-c I H/

A

I l. I J C --C--·H

I If'

­

fr-C ..- II

.

,

I

J..y ' B Name A and B. Namakan A dan B .

454112

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.... ~"'.1 ~2.~. ~ \.1 ,t ..' ..... i.. ..........., ... ..

B:

.... /".-:-.~(~.~)rt"Of0.~L ..................... ..

12 marks]

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(e)

Substance A burns with more IRe!
this statement.

/ebih

pernVOI(lOI/

fUbj1M (f A

[3l1lHrksj

Section B Ra/wgillll B

r20 m~lTks] f20 IJ1wka/;j

Answer anyone question fi'om this section ./awab mana-mana

satll SOU/UII

dariporla holingion fnl

~ 1,\ 1)

7

(a) The knowledge of exothermic and endothennic reactions can be applied to produce hot packs alld cold packs that we can usc in everyday life, SU:te one usc and typc oj rcnctiol1 of each pack, I '

,

Pel1get([IW([1J mengenal tlnduk balas elisolermik dan elldo!enl1ik boleh dioplikusikull FUlfil/( mengiJasilkon pck panas don pek yallg lo/a gllll([kall dul(//II kellidupon harlem NV1/wkoll S(l{ZI

dan jenis tindak hulas yang {crli[;o! rialalli

,I

lase/JUI,

[4/11arksJ

(b)

H r,lr

I Copper can Bekos kuprul71

Tripod stand TUl7gku kaki tiga

f

Thcrmomettl Jungkusuhll r

~J~--~~ -+-Water --. .: A _- . -_ i ~-

_ • --

/I'

~,-

J

r:::::::!---H----

Spirit lamp Lm11jJlI s'jJir it

Ethanol /:'tollal

DlAGHA!'17 Rajl!h 7

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SlJLIT

Diagram 7 shows the set-up of the apparatus to determine the heat of combustion of ethanoL 9.20 g ethanol, C 2H sOH is required to increase the temperature of 100ern J or water by 32°C. [Relative'atomic mass: II, I ; C, l2; 0,16; specific heat of water 42Jg'l 'C t density of water 1gem']] ( 1- 'y l 1 1; -f i

Rajah 7 menunjukkan susunan radas untuk menentukan haba pembakaran cianjJCldu pernhakar!ln

cIano/. 9,20 g etanol, C 2H 50H digzmakan untuk mertaikkan suhu lOO ern J air sebaflyak 32"C

[Jisim atom relatlf: H, 1 , C, 12, 0, 16; mualan haha lentu air 4,2Jg 1 I.

Kelllmp({tafl air 1gem '3]

(i)

State two precautionary steps that must be taken while carrying out the experiment. Nyalakc1I1 dua langkah herjagajaga yang mesti diambil semasa menjalankarl eksperirnen ini, [2 marksl

(ii)

Calculate the heat of combustion of ethanoL Hilungkan haha pemhakaran hag! elanol

,

(iii)

r4 marks)

I

Write the thermochemical equation for the reaction mentioncd in (a) (ii), Tuliskan persamaan termokimia untuk tindak balas yang dinyalakan dalam (o)(ii).

[2 marks] l

(c) Thc heat of combustion of methanol is 726kJmor , Compare the heat oCcomhustion ofrncthanol and ethanol. Explain the differencc of their heat of combustion. JIaba pemhakaran metanal adalah 726kJmo{', Bandingkan haba pembakaran metal/of don etanal, Terangkan perbezaalJ antara kedua-dua haba.nembakaran, • " '" ' , I ,'., ' [4 marks]

(d) Methanol ~ndctnanoi ao' not'have isomers, Propanol has two isomers, Draw and name the structures of the two isomers of propanol. Metanol dan etano! lidak mempunyai isomer. Propanol mempunyai duo isomer. Lukis dan namokan kedlla,dlli7 Slruktur isomer propanol tersehut.

[4 marks]

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(3) Group 1 clements react with cold water vigorously. E/emen-elemen da/am kumpu/an 1 b<Jrtintiak halos cergas dcngan air.

(i)

Write a balanced chemical equation for the reaction of one of the clements in group 1 with cold water. Tuliskan persomaan kimia seim/Jilng unruh: lindukhalus sCifah sal/l unsur kump1l/an 1 dengan air sejuk., ! . [2 marks] -1

(i1)

Which of the clements in Group 1 react most vigorously with cold water') Explain your answer. Unsur kumpulan 1 manakah hertindak halas paling cergas dengan air ,\'ejuk?

Terangkan mengapa.

f4

j

(iii)

marksl

How arc these metals kept in the laboratory? Give a rcason for your answer. Bagainwnakah logam ini disimpan di makmal? Herikan schab bagi jawapan andLl.. [2 marks]

(b) Atom G has an electron arrangement

or 2.8 .1, Determine the position of alom C; in the Periodic

Table of Elements. Explain your answer. Susuflon eleklron bagi atom G adafah 2,8.1. Tentukczn kedudukan atom G cia/am jwhw/ Berka/a Ullsur.Jelaskan jawapan anda [4 marks]

(c)

23

35 p

1

12 R

Q 17

6 FIGURE 8 Rajah 8

Atoms ofP and Q fonm an ionic compound whereaS Q and R form a covalent compound. Based on the ahove statement, explain how these ionic and covalent compounds arc formed. A tom P dan Q membcrzluk sebatian ion monakala aWIll Q dan R memhentuk suiJaiia.Y/ kovalen. Berciasarka/1 penl}'ataan di atas, je!askan bagaimana sebatioN ion dan seba/ian Iwva/ell /erbentuk.

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Section C

Bahagian C

[20 marksJ

{20 markahj Answer anyone question from this section

Jawab mana-mana sa(u soalan daripada bahagian ini

9.

An experiment was conducted to measure rate of reaction between zinc and dilute hydrochloric acid. The volume of hydrogen gas produced is recorded at 30 seconds interval for 4 Y2 minutes. The results collected arc shown in Table 9.

c')'alu eksperimen telah dijalankan untuk mengkaji kadar lindak balas di anlam zink dan asid hidroklorik cairo Isipadu gas hidrogen ferhasil dicatatkan pada seta masa 30 sewl sehingga 4 1. minil. Keputusan eksperimen ditunjukkan di Jadual 9. Time (s)

31.50

TABLE 9

Jadual9 (a) Based on the above reaction, what is meant by the rate of reaction?

Berdasarkan tindak balas di alas, apakah yang dimaksudkan dengan kadar tindak bales'? [1 mark

(b) Based on the data in Table 9, draw a graph of volume of hydrogen gas collected againsltime.

iJerdasarkal1 maklumat dalam JadW·tl 9" lukiskan graj isipadu gas hidrogen yang terkumpul melawan masa. c/ l :.,' I{ . . I ' , ( "-----1

' ,''''-,

/

[4 mark

(c) Based on the graph in 9 (b), caiculJtc

13erdasarkan grcif di 9 (b),hitllllgkan

(i)

average rate of reaction for thc !irst 2 minutes. kadar tindak balas purata pada 2 minit yang pertama.

[2 mark Oi)

raie of reaction at the second minute.

kadar lindak halas pada mil/it yang kedua.

[3 mad

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(d) (i)

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Based on collision theory, explain how temperature affects the rate of reaction. Berdasarkan leori perlanggaran, lerangkan bagaimanQ suhu mempengaruhi kadar lindak balas. [3 marks]

(i i)

State three other factors that affect the rate of reaction between zinc and hydrochloric acid.

Nyalakan tiga /aktor lain yang mempengaruhi kadar tindak balas an/ara zink dan asid hidroklorik. [3 marks]

(e) Food kept in the refrigerator lasts longer than food kept in a cupboard at room temperature. Explain.

Makanan yang disimpan di £lalam pet! sejuk lehih tahan lama daripada makanan yang disimpan dalam almarl pada suhu bilik. lelaskan. [4 marks]

454112

10 2009 Hak Cipta Pejabat I'clajarall Dacrah !luiu Langat Sdangar

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Aeroplane is made from an alloy of aluminium. Kapallerbang diperhll(/1 daripada sejenis aloi bagi aluminium

10.

(a) (i)

What is the name of this alloy? Apakah nama aloi ini?

(ij)

Besides aluminium, name another component in alloy mentioned in 10 (a) (i). Selain daripada aluminium,namakan salu lagi komponen dalam aloi yang dinyalakan di 10 (a) (i).

( iii)

Give a reason why pure aluminium is not suitable for building of aeroplanes? Berikan saW scbab kenapa aluminium lulin adak seslwi unl1lk pembinaan kapal lerhang. [3 marks]

(b)

The copper \vire in an electric cable can be easily bent. A medal made of an alloy of copper and tin canIlot be bent easily.

Dawai eleklrik kuprum boleh dibengkokkan dengan mudah lelapi sehuah pingal aloi yang diperbuat daripada kuprum dan limah lidak mudah Ullluk dibengkokkan.

By using one suitahle example,descrihe a laboratory experiment to ~how the hardness of the alloy

compared to its pure metal.

Explain the differcIlce in hardness of the metal and its alloy in terms of atomic

arrangerm;nl.

Dengan meng[.,'1makan satu conlOh yang sesuai huraikan eksperimen makmal untuk menunjukkan

sifal kekerasan aloi berbanding logam tulennya.

Terangkan perbezaan sifat kekerasan logam lulen itu dan aloi logam ilu dari segi susunan alom.

[10 marks] (c) Emission of gaseous pollutant from vehicles and industries leads to the fonnation of acid rain. Pelepasan gas-gas pencemaran dari kenderaan dall induslri menghasilkan hujan asid (i)

Write the chemical equation for the formation of acid rain. Tuliskan persamaan kimia unlUk pembentukan hujan (lsid. [2 marks]

(ii)

Explain the effects of acid rain on the environment. Terangkan kesan-kesan hujan asid terhadap alam sekilar. [5 marksJ

END OF QUESTION PAPER

KERfAS SOAIJAN TAMAT

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454113 Chemistry Kertas 3

2009 1 Yz Jam

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PEJABAT PELAJARAN DAERAH HULULANGAT PEPEHIKSAAN PEHCUBAAN SPM 2009 KIMIA

KERTAS 3

Salu jam tiga puluh minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBEIUTAHU I. Tuliskan nama dan tingkatan pada ruang yang

disediakan.

~~_~Ik ~~~lm~an p1e~er~~_11

_

2. Kerlas soalan ini adalah da/am dwibahasa.

Loa S Ian

3. Soulan dalam Bahasa Inggeris mendahl/lui soalan yang sepadal7 da/am Bahasa lvlelayu. 4. Calon dibenarkan menjawab keseluruhon

(llml

sebahagian soalan sama ada dalwfI Bahasa Inggeris alau Bahasa Ale/aYli. S. Calon dikehendaki membaca nwklwnat eli

halaman belakang kertas soalan ini.

Kcrtas soc·dan ini

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454113 A student carried out an experiment using two electrolytic celis, Cell A and Cell B as shown in the diagram I. Cell A is set up using two carbon electrodes, while Cell B is set up using two copper electrodes. Both cells arc fillcd with 0.5 mol dm-) copper (II) SUlphate solution.

f:;.xamlner's Use

Seorang murid menjalankan satu eksperimen dengan meggunakan dua sci elcktrolisis, sel A dan sel B scperti yang ditunjukkan dalan Rajah 1. Sel A menunjukkan susunan radas dengan menggunakan dua elektrod karbon, manakala sci B menunjukkan susunan radas dengan menggunakan dua elektrod kuprum. Kedua-dua scI diisi dengan 0.5 mol dm- 3 larutan kuprum (If) sulfat.

,------ill~ Measuring_t--_ _ _ ~ cylinder Selinder

penyukat

Carbon electrode Elektrod carbon Copper (II) sulphate solution Larutan kuprum (II) sulfat,

Cell A ScI A

Copper electrode Elektrod kuprum

-------------Cell B Diagram 1 Sel B Rajah 1 In cell A, a colourless gas formed at electrode P is collected using a measuring cylinder with downward displacement of water. Diagram 2 shows the readings of measuring cylinder at 30 seconds intervals, Di sci A, gas tanpa warna terhasil pada elektrod P dikumpulkan dengan menggunakan silinder penyukat dengan kaedah sesaran air ke bawah. Rajah 2 menunjukkanbacaai silinder penyukat bagi setiap 30 saat.

4541/3

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2

4

4

4

6

6

Timelmasa: 0.0 s Initial reading: ),.2bacaan awal

(t

Timclmasa:30.0 s 1st reading: 4.J bacaan pertama

(I,·

Timc/masa: 60.0 s 2 nd reading: 5,6 bacaan kedua

6

6 t=

~

8

1=

f----­

~ 1­

8

,~

Time: 90.0 s 3rd rca d'mg:._ bacaarz ketiga

Time: 120.0 s ":t 4 th rea d'mg: L0 bacaan keempat Diagram 2 Rajah 2

(a)

4541/3

Record the readings of the measuring cylinder in the spaces provided in the diagram 2. Nyatakan bacaan selinder penyukat di dalam ruang yang disediakan di dalam rajah 2. [3 marks] [3 markahJ

0 2009 ~Iak Cipta Pcjaball'clajaran Dacrah Hu:u Langat Selangor

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(b)

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Construct a table to record the time taken and the readings of the measuring cylinder for this experiment. Bina satu jadual bagi merekod masa yang diambil dan bacaan silinder penyukat bagi eksperimen ini.

5.£

l(b)

I~

[3 marks1 [3 markah}

Ld2J

(c)

State one hypothesis based on the experiment. Nyatakan salu hipotesis berdasarkan ebperimen ini.

J(c)

ED]

....(~>:~.~..... j~ ... ~C .. ~.lj.~f1aL...; ..... .••.

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[3 marks]

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For Exwnim Use

Based on the experiment, state:

Bcrdasarkan eksperimen inl, nyalakan: (i) The manipulated variable

Pembolehubah dimanipulasikan

...Tht. J~r.L .. ~J. ... fl(tiv.().d~ ... 0J.fd.. ... """""'" ............................

(ii) The responding variable

Pembolehubah bergerak halas

.....1h~.... r~~ll.~~ ....0 L.:.th.~ .... ~.tN!AV.J~ 1.. ~~!!~A~r..: ... ..6 .................

\JUC;I"~'.,\t.'At,.

~4

\

<1\

pl

~"i'''

'i:i'(' ';j'~)(

(iii) The constant variable Pemb()~ehubah

dimalarkan

... Jhf. ... J!.(!.tt.~. Jv.~. t)Ofl ... .~.L .lPfptr..~((I) .. J~/ph/d{ .. /~J.l1f'~.~.:...... . [3 marks] (3 markahJ (c) 0)

State all the ions present

In

copper (II) sulphate solution.

Nyatakan semua ion yang lzadir dalam lamtan kuprum (11 )su(fat.

OH­

C» H SO,l- {-jf ............... 't' .. ·!f.··f ......../ ........................................... .

1( C)(i



;---­

[3 marks] [3 markahJ (ii) Classify the ions stated in (e)(i) that arc attracted to the electrode P and Q in cell A.

Klasijikasikan ion-ion yang dinyatakan dalam (e)(i) yang tertarik ke elektrod P dan Q di dalam sel A. Ions attracted to electrode

yClng tertarik ke elektrod p

Ions attracted to electrode I

.

lon-iun yang tertarik ke elektrod

1(e)(ii

[3 marks]

f3 marknhJ

454 I 13

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454113

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In cell A, a colourless gas is released at electrode p, State the inference for this experiment. Di dalam sel ;1, gas tanpa warna terhasil di etektrod p, ;\):atakar; inferens bagi ehperimen ini,

I (f)

"J~,f". UilQ!A.i~,jm", q~J"" .iY'[,Il", (.t.~!,~iIJ!.", ,~hvh", .'If, ,,r,ot. J~,

---~-----:

..~/I~,~.. ,'1{o.~.I~,g, .. ,,q.l!n,t t,V: .. ,!Y!'.

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[3 marks] /3 markah}

/,.n-' ~ Tn cell B, state one observation that can bc obta;l~ed [or

(g)

Ii iJi~

,'"

{:'..;

Di dalam set H, nyarakan satll pemerhatian yang diperolehi bagi (i)

electrode R

elektrod R

... ~,I!~.. ,.~(@¥1.(,. ,~,J~n.{ r. ... el ectrode S

(i i)

elektrod S

" 0';/1 " .~~!qtt1,~ ... {h, ~~,{ r:., ./ I (g)

(iii)

change in eolour of electrolyte perubahan warna elektrolit

lliTI

[3 marks] markah} In cell A, calculate the volume, number or mole and mass of oxygen gas reIGascd al time 120 seconds. (I mol of gas occupies 24 drn) at room temperature and pressure) (Relative atomic mass: 0 16) Di dC/lam sel ;1, kirakan isipadu , bilangan mol dan jisim gas olC'iigen yang terbebas pada masa J20 saat.

(h)

no4;1'1~

'It

(I mol gas menepa!i 24 drn 3 pada suhu dan tekanan hllik)

}Jisim atom relatif' () == 161 3 '

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In cell A, a brown solid is deposited at electrode Q, write thc half

equation [or the discharge of ion at electrode Q.

Di dalam sel A, pepejal perang terenap pada elektrod Q, tulis

persamaan setengah untuk ion yang didL<;cas pac/a e/ektrod Q.

; J marKS markahj

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(j) In cell B, hoth electrode Rand S arc weighed before the experiment and reweigh at time 120 seconds. Predict the changes in mLlSS for electrod Rand S at time 120 scconds. Statc the conclusion [or this experiment. /Ji da/am sel 11, kedua-dua elektroi./ R dan S ditimbang sebeilim eksperimen dan ditimbang s'emula selepas eksperimen pada masa 120 saat. Ramalkan perubahan jisim untuk elektrod R dan S Nyatakan kesimpulan untuk eksperimen ini . . .fr1{4J.~ ..

d.. J.\t({I:O.d{ ..~ .. .W.I!.I. . Atti(0.J.y.. ((nd .. ,~.'iH .. ~.f .. tl(lJf'6J.i ,6-. ,.. "

.~I)! ...,t1.~rt~~~lA4&i~~!(i....~I~,ijij ~:F~i ..'.tfltr.f·.... Plff~(tl1l-,-tyf.(. o.f~ ..

e{((1I1Jde ,,'111 tl{{:JOI~.flJ. '.fi1~ 10(11 #ltd mure lIMhlt1t8t1f1ve will };Ie JlJUi'IVf d1uh{A. lr1{' -\

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2. Table helow shows the reaction of two different metal oxides with carhon.

Jadual di h{lHYlh menunjukkan tindak halos dua (}/csida loga!!? yang her/ainan dengan karhon. ,---'~--------~---""------

MIxture

Campuran

---~---~------.-,~~-

I Aluminium oxide and carbon , powder

Alumin/urn okvida dan

-

~

Iron (III) oxide and carbon powder

Be,,;i oksida dan serhuk ka,.hon raint glow

Observation

Baraan

Pemerha/ian

Based on the situation above, plan a lahoratory experiment to determine the positIOn of carbon in the reactivity series of metals.

Berdasarkan silUasi di atas, rancang satu eksperimen m.akmal un/uk menentulwn kedudukan karbon dalam siri kereaktifan /ogam. Your planning should include the following aspects.' Perancangan am/a hendaklah mengandungi aspek-mpek berikul.' (a) Aim of the experiment

Tujuan eksperimen (h) Statement of the hypothesis

Pernyataan hipotesis (c) All the variahles Semua pembo/ehuhah (d) List of substances and apparatus

Senarai bahfln dan radas (e) Procedure of the experiment Prosedur eksperimen

(I) Tahulation of data Pel1Jadualan data

rJ 7 marks J (17 markahJ END OF QUESTION PAPEU KERTAS SOALAN TAJ1AT

4541/3

200') Ibk Cpt" PClaba: Pd:tjaran Dacral: Iluiu I~mgal Scl,ufior

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INFORMATION FOR CANDIDATES MAKLUMAT UNTUK CALON 1. This question paper consists of two questions: Question 1 and Question 2 . Kerlas soa/an ini mengandungi 2 soa/an: Soaian J dan Soaian 2. 2.. Answer all questions. Write your answers for Question 1 in the spaces provided in this question paper. Jawah semua soalan. Jawapan anda hagi Soalan 1 hendaklah dilulis dalam mang yang

disediakan dolam kerlas sewlan ini. 3. Write your answer for Quest~on 2 on the' helaian tamhahan . provided by invigilators. You may usc equations, diagrams, tables, graphs and other suitable methods to explain your answer. Tulis jawapan anc/a bagi Soalan 2 dalam he/aian tamhahan yang dibeka/kan oleh pengawas

peperiksaan.. Anda ho/eh mengb'1.lnakan persamaan. rajah, jadual, gnif darz cam lain yang sexuai unluk menjelaskan jawapan anda. 4. Show your working, it may help you to get marks.

Tunjukkan kerja mengira, ini memhantu anc/a mendapatkan markah. 5. The diagrams in the questions are not drawn to scale unless stated.

Rajah yang mengiringi so alan tidak eli/ukis men,l,>ikut skala kecuali dinyatakan.

6. The marks allocated for each question or sub-part of a question arc shown in brackets.

Markah yang dzj)eruntukkan bagi setiap soa/an atau ceraian soczlan ditunjukkan dalam kurungan. 7. If you w ish to change your answer, cross ou t the answer that you have done. Then w ri te down the new answer.

Jika anda hendak menukar jawapan. hatalkan jawapan yang telah dihuat. Kemudian tuliskan jawapan yang baru. 8. You may use a non-programmable scientific calculator.

Anda dihenarkan menggunakan kalkulalor saintifikyang tidak holeh diprogramkan.

9. You arc advised to spend 45 minutes to answer Question 1 and 45 minutes for Question 2. Anda dina.l'ihati supaya mengamhil masa 45 minit untuk menjawah Soalan 1 dan 45 mini! untuk Soalan 2. 10. Detach Question 2 from this question paper. Tie the' helaian tambahan' together with this question paper and hand in to the invigilator at the end of the examination. Ceraikan Soa/all 2 daripada kertas saalan ini. lkat helaian tambahan bersama-sama kerta.l'

.l'Oa/an ini dan serahkan kepada pengaW(l.l' peperiksaan pada akhir peperik\'Qan.

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