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SULIT 4541/1

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4541/1 Kimia Nama Pelajar : ………………………………………………….

Kertas 1 September Tingkatan : ............................................................................

2009 1 ¼ jam

PERSIDANGAN KEBANGSAAN PENGETUA-PENGETUA

SEKOLAH MENENGAH MALAYSIA

CAWANGAN KELANTAN

PEPERIKSAAN PERCUBAAN 2009

SIJIL PELAJARAN MALAYSIA

KIMIA

Kertas 1

Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas soalan ini adalah dalam dwibahasa

2. Setiap soalan mengandungi kedua-dua bahasa Inggeris dan bahasa Melayu. Bahagian

atas dalam bahasa Inggeris dan diikuti di bawahnya oleh bahasa Melayu

3. Calon dikehendaki membaca maklumat di halaman 2.

Kertas soalan ini mengandungi 31 halaman bercetak

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INFORMATION FOR CANDIDATES

1. This question paper consists of 50 questions.

2. Answer all questions.

3. Answer each question by blackening the correct space on the answer sheet.

4. Blacken only one space for each question.

5. If you wish to change your answer, erase the blackened mark that you have made. Then blacken the space for the new answer.

6. The diagrams in the questions provided are not drawn to scale unless stated.

7. You may use a non-programmable scientific calculator.

MAKLUMAT UNTUK CALON

1. Kertas soalan ini mengandungi 50 soalan.

2. Jawab semua soalan

3. Jawab dengan menghitamkan ruangan yang betul pada kertas jawapan.

4. Hitamkan satu ruangan sahaja bagi setiap soalan.

5. Sekiranya anda hendak menukarkan jawapan, padamkan tanda yang telah dibuat.

Kemudian hitamkan jawapaan yang baru.

6. Rajah yang mengirimi soalan tidak dilukis mengikut skala kecuali dinyatakan.

7. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan

Question 1 to Question 50 are followed by four options A, B, C or D. Choose the best option for each question and blackened the corresponding space on

the objective answer sheet.

Bagi Soalan 1 hingga Soalan 50, tiap-tiap soalan diikuti oleh empat pilihan jawapan A, B, C

dan D. Pilih satu jawapan yang terbaik bagi tiap-tiap soalan dan hitamkan ruangan yang

sepadan pada kertas jawapan objektif anda

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1 Diagram 1 shows the atomic symbol of element X Rajah 1 menunjukkan simbol atom bagi unsur X

X19

9

Diagram 1 Rajah 1

Which of the following represents 19?

Antara berikut, apakah yang diwakili oleh angka 19?

A Proton number

nombor proton

B Nucleon number

nombor nukleon

C Number of neutrons

bilangan neutron

D Number of electrons

bilangan elektron

2 Given the formulae for aluminium ion is Al3+

and sulphate ion is SO42-

. Choose the correct chemical formula of alumminium sulphate.

Diberi formula ion aluminium ialah Al3+

dan ion sulfat ialah SO42-

. Pilih formula kimia yang

betul bagi aluminium sulfat.

A Al(SO4)3 B Al2(SO4)3

C Al3(SO4)2

D AlSO4

3 Which of the characteristics indicates that chromium is a transition element?

Ciri-ciri yang manakah menunjukkan kromium ialah unsur peralihan?

A

It can form a basic oxide.

Ianya boleh membentuk oksida bes.

B It can conduct electricity.

Ianya boleh mengalirkan arus elektrik

C It has a high melting point.

Ianya mempunyai takat lebur yang tinggi D It can form coloured solution.

Ianya boleh membentuk larutan berwarna.

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4 Diagram 2 shows the position of atom X in the Periodic Table. The electron arrangement of atom X is 2.8.y.

Rajah 2 menunjukkan kedudukan atom X di dalam Jadual berkala.

Susunan elektron bagi atom X ialah 2.8.y

X

Diagram 2 Rajah 2

What is the value of y? Apakah nilai y

A 1

B 3

C 5

D 7

5 Neon gas does not react with other elements because

Gas neon tidak bertindak balas dengan unsur lain kerana

A exists as monoatomic gases

wujud sebagai gas monoatom

B always combines with itself

sentiasa bergabung dengan diri sendiri

C has stable octet electron arrangement mempunyai susunan elektron octet yang stabil

D has stable duplet electron arrangement

mempunyai susunan elektron duplet yang stabil

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7 Which solution shows the highest pH value?

Larutan manakah menunjukkan nilai pH tertinggi?

A 0.5 mol dm-3

sulphuric acid

0.5 mol dm-3

acid sulfurik

B 0.5 mol dm-3 ethanoic acid .

0.5 mol dm-3

asid etanoik .

C 0.5 mol dm-3

aqueous ammonia

0.5 mol dm-3

ammonia akueous

D 0.5 mol dm-3 sodium hydroxide solution

0.5 mol dm-3

larutan natrium hidroksida

6. Table 1 shows the information about the electrical conductivity of substances P, Q and R. Jadual 1 menunjukkan maklumat tentang kekonduksian elektrik bagi bahan P, Q dan R.

Which of the following statements is true ?

Di antara pernyataan berikut, yang manakah benar ?

Substance P Q R

Does the solid substance conduct

electricity? √ X X

Does the molten substance conduct

electricity? √ X √

A Solid P and molten P contain free mobile ions.

Pepejal P dan leburan P mengandungi ion-ion bebas bergerak

B Solid Q and molten Q contain atoms. Pepejal Q dan leburan Q mengandungi atom-atom.

C There are no ions in solid R.

Di dalam pepejal R tidak terdapat ion-ion.

D Molten R contains free mobile ions.

Leburan R mengandungi ion-ion bebas bergerak.

Table 1

Jadual 1

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8 Substance X + Sulphuric acid → Salt Y + Water + Carbon dioxide Bahan X asid sulfuric Garam Y Air Karbon dioksida

Referring to the equation above, what could substance X be?

Merujuk persamaan diatas , apakah kemungkinan bahan X ?

A Coppe(11) oxide

Kuprum(II) oksida

B Magnesium metal

Logam magnesium

C Zinc carbonate

Zink karbonat

D Sodium hydroxide

Natrium hidroksida

9 Which of the following is a coloured salt?

Antara berikut yang manakah suatu garam berwarana?

A Iron(II) sulphate Ferum(II) sulfat

B Silver nitrate Argentum nitrat

C Lead(II) nitrate Plumbum(II) nitrat

D Calcium carbonate Kalsium karbonat

10 The equation in Diagram 3 represents the reaction in the industrial preparation of ammonia.

Persamaan di dalam Rajah 3 mewakili tindak balas penghasilan ammonia dalam industri.

Diagram 3

Rajah 3

What is catalyst M?

Apakah mangkin M?

A Iron

Ferum

B

Nickel

Nikel

C

Copper(II) oxide

Kuprum(II) oksida

D

Manganese(IV) oxide

Mangan(IV) 0ksida

Catalyst M

N2 + 3 H2 2NH3 450oC/ 60 atm

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11 Which of the following is a property of ceramic objects? Antara berikut yang manakah sifat bahan seramik?

A Good heat conductors Pengalir haba yang baik

B Withstand heat better Sangat tahan haba

C Good electrical conductors Pengalir elkektrik yang baik

D Does not withstand compression Kurang tahan mampatan

12

.

The following statements are related to the collision theory of a reaction

Pernyataan-pernyataan berikut adalah berkaitan dengan teori perlanggaran suatu tindak

balas.

Which of the following combination is true about the effect of the concentration on the

reactant particles?

Antara kombinasi berikut yang manakah benar tentang kesan kepekatan ke atas

zarah-zarah bahan tindak balas

I The total surface area of the reactant particles increases

Jumlah luas permukaan zarah-zarah bahan tindak balas bertambah

II The kinetic energy of the reactant particles increases

Tenaga kinetik zarah-zarah bahan tindak balas bertambah

III The number of the reactant particles per one unit of volume increases

Bilangan zarah-zarah bahan tindak balas per satu unit isipadu bertambah

IV The frequency of the collision between the reactant particles increases

Frekuensi perlanggaran antara zarah-zarah bahan tindak balas bertambah

A I and II only

I dan II saha B II and III only

II dan III sahaja

C I and IV only

I dan IV sahaja

D III and IV only

III dan IV sahaja

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13

Which of the following is not a characteristic of a catalyst? Antara yang berikut, yang manakah bukan ciri mangkin?

A A catalyst is specific in its reaction Mangkin adalah khusus dalam tindak balasnya

B A catalyst inflauences the quantity of product of reaction Mangkin mempengaruhi kuantiti hasil tindak balas

C The chemical property of a catalyst remains unchanged at the end of the reaction

Sifat kimia mangkin tetap tidak berubah di akhir tindak balas

D Only a little amount of a catalyst is needed to influence the rate of reaction

Hanya sedikit mangkin diperlukan untuk mempengaruhi kadar tindak bala

14 Esters are used as food flavourings.

Which of the following is a property of an ester? Ester digunakan sebagai perisa makanan.

Antara berikut, yang manakah sifat ester?

A

Soluble in water Larut dalam air

B Low boiling point

Takat didih rendah

C More dense than water

Lebih tumpat daripada air

D Can conduct electricity

Boleh mengkoduksikan arus elektrik

15 The following chemical equation shows the preparation of ethanol in the laboratory.

Persamaan kimia berikut menunjukkan penyediaan etanol di dalam makmal.

yeast C6H12O6 2C2H5OH + 2CO2

What is the name of the process shown by the above equation?

Apakah nama proses yang ditunjukkan di atas?

A Oxidation

Pengoksidaan

B Dehydration

Pendehidratan

C Fermentation

Penapaian

D Hydrogenation

Penghidrogenan

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The structural formulae of two molecules P and Q are as follows. Formula struktur bagi molekul P dan Q adalah seperti berikut

H H H H H

H – C – C – H H – C – C – C – H

H OH H H OH

P Q

16

Which statement is true of both molecules P and Q?

Pernyataan yang manakah benar bagi kedua – dua molekul P dan Q?

A They have different functional groups Kedua – duanya mempunyai kumpulan berfungsi yang berlainan

B All their physical properties are similar

Semua sifat fiziknya sama

C All their chemical properties are different Semua sifat kimianya berbeza

D They can be represented by the same general formula

Kedua – duanya boleh diwakili oleh satu formula am yang sama

17 The following is the half equation of a reaction.

Berikut adalah setengah persamaan bagi satu tindak balas.

Cl2 + 2e 2Cl-

What is meant by reduction reaction based on the equation?

Apakah yang dimaksudkan dengan tindak balas penurunan perdasarkan persamaan itu?

A

Electrons are received by chlorine

Elektron diterima oleh klorin

B Electrons are donated by chlorine Elektron diderma oleh klorin

C Electrons are received by chloride ions

Elektron diterima oleh ion klorida

D Electrons are donated by chloride ions

Elektron diderma oleh ion klorida

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18 Which substance is an oxidising agent?

Bahan manakah yang merupakan agen pengoksidaan?

A

Zinc

Zink

B Sulphur dioxide gas

Gas sulfur dioksida

C Potassium bromide solution

Larutan kalium bromida

D Acidified potassium dichromate(VI) solution

Larutan kalium dikromat(VI) berasid

19

Which of the following chemical equations represents the reaction of preparation of soap?

Diantara persamaan kimia berikut, yang manakah mewakili tindak balas penyediaan sabun?

A Ethanoic acid + ethanol → ethyl ethanoate + water Asid etanoik + etanol � etil etanoat + air

B Oil + sodium hydroxide → glycerol + sodium palmitate Minyak + natrium hidroksida � gliserol + natrium palmitat

C Glucose + yeast → ethanol + carbon dioxide

Glukosa + yis � etanol + karbon dioksida

D Alkylbenzene sulphonic acid + sodium hydroxide → sodium alkylbenzene sulphonate +

water

Asid alkilbenzena sulfonik + natrium hidroksida � natrium alkilbenzena sulfonat + air

20 Why detergents more effective than soaps?

Kenapakah detergen lebih berkesan berbanding dengan sabun?

A Detergents are biodegradable whereas soaps are non biodegradble.

Detergen boleh terbiodegradasi manakala sabun tidak terbiodegradasi.

B Detergents reduce the surface tension of water, whereas soaps do not.

Detergen merendahkan ketegangan permukaan air manakala sabun tidak merendahkan

ketegangan permukaan air.

C Detergents do not form scum in hard water, whereas soaps do.

Detergen tidak membentuk kekat didalam air liat manakala sabun membentuk kekat.

D Detergents are soluble in grease, whereas soaps are insoluble in grease.

Detergen larut dalam gris manakala sabun tidak larut dalam gris.

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21

Diagram 4 shows the electron arrangement of atom Z. Rajah 4 menunjukkan susunan elektron bagi atom Z.

Diagram 4

Rajah 4

How many protons are there in the nucleus of atom Z?

Berapakah bilangan proton yang terdapat dalam nukleus atom Z?

A 2

B 3

C 5

D 7

22 An advertising light is filled with 1800 cm3 of neon gas at room condition. Calculate the

number of neon atom in the light?

[1 mol gas occupies the volume of 24 dm3 at room temperature and pressure, Avogadro

Numbers = 6.02 x 1023]

Sebiji lampu iklan telah diisi dengan 1800 cm3 gas neon pada keadaan bilik. Hitung

bilangan atom bagi gas neon dalam lampu itu?

[1 mol gas menepati isipadu sebanyak 24 dm3 pada suhu dan tekanan bilik, nombor

avogardo = 6.02 x 1023]

A 4.515 x 1022

B 4.515 x 1023

C 8.03 x 1022

D 8.03 x 1021

Z

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23 Diagram 5 shows a part of set up apparatus to determine the empirical formula of metal oxide.

Rajah 5 menunjukkan sebahagian dari radas untuk mengenalpasti formula empiriks bagi

oksida logam.

Diagram 5 Rajah 5

Which of the metal oxide cannot be used by this method?

Oksida logam yang manakah tidak boleh ditentukan menggunakan kaedah ini.?

A Zinc oxide

Zink oksida

B Lead(II) oxide

Plumbum(II) oksida

C Copper(II) oxide

Kuprum(II) oksida

D Iron(III) oxide

Ferum(II) oksida

H2

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24 Diagram 6 shows the electron arrangement of a compound formed between atoms X and atom Y.

Rajah 6 menunjukkan susunan elektron bagi sebatian yang terbentuk di antara atom X dan

atom Y

Diagram 6

Rajah 6

Which of the following statements is true about this compound?

Yang manakah di antara pernyataan berikut benar tentang sebatian ini

A It is an ionic compound.

Ia merupakan sebatian ion B The compound conducs electricity.

Sebatian ini boleh mengkonduksikan arus elektrik

C The compound has high melting point.

Sebatian ini mempunyai takat lebur yang tinggi

D The compound is formed by the sharing of electrons.

Sebatian terbentuk melalui perkongsian elektron

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25 Diagram 7 shows the set up of the apparatus for the electrolysis of molten lead(II) oxide. Rajah 7 menunjukkan susunan radas bagi elektrolisis leburan plumbum(II) oksida.

What are the products formed at the anode and the cathode?

Apakah hasil yang terbentuk pada anod dan katod?

Anode

Anod

Cathode

Katod

A Lead Plumbum

Oxygen Oksigen

B Oxygen Oksigen

Lead Plumbum

C Hydrogen

Hidrogen

Oxygen

Oksigen

D Oxygen

Oksigen

Hydrogen

Hidrogen

26. Copper (II) sulphate solution is electrolysed using copper electrodes. What can be

observed at the anode and cathode after 30 minutes?

Larutan kuprum(II) sulfat dielektrolisiskan menggunakan elektrod kuprum. Apakah yang

diperhatikan pada anod dan katod selepas 30 minit?

Anode Cathode

A Copper plate becomes thinner

Plat kuprum menjadi nipis

Copper plate becomes thicker

Plat kuprum menjadi tebal

B Copper plate becomes thinner Plat kuprum menjadi nipis

Gas bubbles are released Gelembung-gelembung gas terbebas

C Copper plate becomes thicker Plat kuprum menjadi tebal

Copper plate becomes thinner Plat kuprum menjadi nipis

D Gas bubbles are released Gelembung-gelembung gas terbebas

Copper plate becomes thicker Plat kuprum menjadi tebal

Diagram 7

Rajah 7

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27. Table 2 shows the observation of electrolysis of a substance using carbon electrode . Jadual 2 menunjukkan pemerhatian bagi elektrolisis suatu bahan menggunakan elektrod

karbon.

Electrode Elektrod

Observation Pemerhatian

Anode

Anod

A greenish-yellow gas released

Gas berwarna kuning kehijauan terbebas

Cathode

Katod

A colorless gas which burns with a ‘pop’ sound is released

Gas yang tidak berwarna dan terbakar dengan bunyi pop terbebas

The electrolyte maybe Elektrolit itu mungkin

A

Dilute hydrochloric acid Asid hidroklorik cair

B

Concentrated potassium chloride solution.

Larutan kalium klorida pekat

C

Copper (II) chloride solution. Larutan kuprum (II) klorida

D

Concentrated magnesium bromide solution

Larutan magnesium bromide pekat.

28 Which of the following statement correctly describes a strong alkali?

Antara pernyataan berikut, yang manakah betul tentang alkali kuat ?

I

Has a low pH value

Nilai pH yang rendah

II

Ionises completely in water

Mengion dengan lengkap dalam air

III

Has a high concentration of hydroxide ions

Mempunyai kepekatan ion hidroksida yang tinggi

IV

Exist as molecules in water Wujud sebagai molekul dalam air

A I and II

I dan II

B I and IV

I dan 1V

C II and III II dan III

D III and IV III dan IV

Table 2

Jadual 2

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29 Diagram 8 shows a method of preparing insoluble salt by mixing solution X and solution Y.

Rajah 8 menunjukkan suatu kaedah penyedian garam tak terlarutkan melalui campuran

larutan X dan larutan Y.

Diagram 8

Rajah 8

What is the type of the reaction shown in Diagram 8.

Apakah jenis tindak balas ditunjukkan dalam Rajah 8.

A Neutralisation reaction

Tindak balas peneutralan

B Substitutiuon reaction

Tindak balas penukar gantian

C Precipitation reaction

Tindak balas pemendakan

D Addition reaction

Tindak balas penambahan

Solution X

Larutan X

Solution Y

Larutan Y

Salt

Garam

Mixing two solution

Campuran dua larutan

Filter and rinse

Turas dan bilas

Dry

Keringkan

Salt crystals

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30 Diagram 9 shows the stages I, II, III and IV in the Contact Process during the preparation of sulphuric acid.

Rajah 9 menunjukkan peringkat I, II, III dan IV bagi penyediaan asid sulfurik melalui

Proses Sentuh.

S I SO2 II SO3 III H2S 2O7 IV H2SO4

Diagram 9 Rajah 9

Which of the following chemicals is used at each stage I and IV?

Antara bahan kimia berikut, yang manakah digunakan pada peringkat itu?

I IV

A O2 H2O

B O2 SO2

C H2O O2

D H2O SO2

31 Diagram 10 shows the structural formula of a carbon compound.

Rajah 10 menunjukkan formula struktur bagi suatu sebatian karbon.

H H O H H

H – C – C – C – O – C – C – H

H H H H

Diagram 10

Rajah 10

The compound is produced by the reaction between

Sebatian ini terhasil daripada tindak balas antara

A ethanol and propanoic acid etanol dengan asid propanoik

B ethanol and butanoic acid etanol dengan asid butanoik

C propanol and ethanoic acid propanol dengan asid etanoik

D butanol and ethanoic acid butanol dengan asid etanoik

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32. The equation below represents the reaction between calcium carbonate and hydrochloric acid.

Persamaan di bawah mewakili tindak balas antara kalsium karbonat dengan asid

hidroklorik.

CaCO3(s) + 2HCl (aq) CaCl2(aq) + H2O(l) + CO2(g)

Which of the following graphs shows the changes of volume of carbon dioxide against the time of reaction?

Antara graf berikut, yang manakah betul bagi menunjukkan perubahan isipadu gas

karbon dioksida terhadap masa tindak balas?

A

B

C

D

Volume CO2/cm3

Isipadu CO2/cm3

Time/min

Masa/min Volume CO2/cm3

Isipadu CO2/cm3

Volume CO2/cm3

Isipadu CO2/cm3

Volume CO2/cm3

Isipadu CO2/cm3

Time/min

Masa/min

Time/min

Masa/min

Time/min

Masa/min

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33 The following equations represent the displacement reactions between metals P, Q and R. Persamaan berikut mewakili tindak balas penyesaran antara logam P, Q and R.

Reaction 1 : P + Q2+ P2+ + Q

Tindak balas 1

Reaction 2 : R + P2+

R2+

+ P Tindak balas 2

Which of the following statements is true about the reaction?

Antara berikut pernyataan yang manakah benar tentang tindak balas itu?

A

P is more electropositive than Q P lebih elektronegatif daripada Q

B P and R are oxidising agents

P dan R merupakan agen pengoksidaan

C The descending sequence of metals’ reactivity is R, Q, P

Susunan menurun kereaktifan logam ialah R, Q, P

D P2+ and Q2+ are reducing agents while R2+ is oxidising agent

P2+

dan Q

2+ merupakan agen penurunan manakala R

2+ merupakan agen pengoksidaan

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34 Diagram 11 shows the apparatus arrangement that is used to study the transfer of electrons at a distance.

Rajah 11 menunjukkan susunan radas yang digunakan untuk mengkaji pemindahan

elektron pada satu jarak.

Diagram 11

Rajah 11

What colours can be observed at the ends of carbon rod X and carbon rod Y at the end of

the experiment?

Apakah warna yang dapat diperhatikan di hujung rod karbon X dan rod karbon Y pada

akhir eksperimen itu.

Rod X Rod Y

A

Yellow Colourless

Kuning Tidak berwarna

B Yellow Green Kuning Hijau

C Green Orange Hijau Perang

D Green Purple Hijau Ungu

Iron (II) sulphate solution

Larutan ferum(II) sulfat

Acidified potassium

dichromate(VI) solution

Larutan kalium dikromat(VI) berasid

Dilute sulphuric acid

Asid sulfurik cair

Carbon rod X

Rod karbon X

Carbon rod Y

Rod karbon Y

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35 The following equation shows the reaction between Ag+ and Cl

- ions.

Berikut adalah persamaan bagi tindakbalas antara ion Ag+

dan ion Cl- .

Ag+ + Cl- → AgCl ∆ H = - 65 kJmol-1

Which of the following is true about the above equation ?

Antara berikut yang manakah benar tentang persamaan diatas ?

A Endothermic reaction occurs

Tindakbalaas endotermik berlaku

B Heat is released to the surroundings

Haba dibebaskan ke persekitaran

C The temperature of the product decreases

Suhu hasil tindakbalas berkurang .

D 65 kJ of heat absorbed when 1 mole of silver chloride is formed .

65 kJ haba diserap apabila 1 mol argentum klorida terbentuk .

36 9.75 g of element X reacted with 63.5 g of element Y to form a compound with the formula XY2.

What is the relative atomic mass of element X?. [Given that the relative atomic mass of Y=127]

9.75 g unsur X bertindak balas dengan 63.5 g unsur Y untuk membentuk satu sebatian

yang mempunyai formula XY2.

Berapakah jisim atom relatif unsur X?

[Diberi jisim atom relatif Y=127]

A 23

B 39

C 40

D 88

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37 The following equation shows the decomposition reaction of lead(II) nitrate when heated at room temperature and pressure.

Persamaan berikut menunjukkan tindak balas penguraian plumbum(II) nitrat apabila

dipanaskan pada suhu dan tekanan bilik.

2 Pb(NO3)2 2PbO + 4 NO2 + O2

Which of the following is true when 0.1 mol of lead(II) nitrate is decomposed?

[Relative atomic mass: N=14, O=16,Pb=207 and 1 mol gas occupies the volume of 24 dm3 at

room temperature and pressure]

Antara yang berikut, yang manakah benar apabila 1 mol plumbum(II) nitrat terurai?

[Jisim atom relatif: N=14, O=16,Pb=207 dan 1 mol gas menepati isipadu sebanyak 24 dm3

pada suhu dan tekanan bilik.]

A 44.6 g of lead(II) oxide is formed. 44.6 g plumbum(II) oksida terbentuk.

B 4800 cm3 of nitrogen dioxide is given off.

4800 cm3 gas nitrogen dioksida terbebas

C 2.4 dm3 of oxygen gases is given off.

2.4 dm3 gas oksigen terbebas.

D 4.46 g of lead(II) oxide is formed. 4.46 g plumbum(II) oksida terbentuk.

38 0.65 g of zinc powder reacts with excess hydrochloric acid to produce hydrogen gas.

0.65 g 0.65 g serbuk zink bertindak balas dengan asid hidroklorik berlebihan untuk menghasilkan

gas hidrogen.

Which Which of the following is true about the reaction? Pernyataan manakah benar tentang tindak balas?

[RAM: H=1,Zn=65, Cl=35.5 and 1 mol of gas occupies 24 dm3 at room temperature and

pressure]

I Zn + 2H+ Zn

2+ + H2

II Volume of gas released is 120 cm3

III Mass of the salt formed is 1.36 g

IV This is redox reaction

A I and II only

B I and III only

C I,III and IV only

D II, III and IV only

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39 What can be deduced from the symbol 27

13 Al?

Apakah yang dapat disimpulkan dari symbol 27

13 Al?

I The electron arrangement of aluminium atom is 2.8.3

Susunan elektron bagi atom aluminium ialah 2.8.3.

II Aluminium atom has 13 protons and 27 neutrons.

Atom aluminium mempunyai 13 proton dan 27 neutron.

III Aluminium atom has a proton number of 27 and 14 neutrons.

Atom aluminium mempunyai nombor proton 27dan 14 neutron.

IV The total number of proton and neutron of aluminium atom is 27.

Jumlah bilangan proton dan neutron atom aluminium ialah 27.

A I and III B II and IV

C II and III D I and IV

40 Diagram 12 shows the electron arrangement of ion T.

Rajah 12 menunjukkan susunan elektron bagi ion T

Diagram 12

Rajah 12

Where is element T placed in the Periodic Table?

Dimanakah unsur T ditempatkan di dalam Jadual Berkala?

Group

Kumpulan

Period

Kala

A 17 2

B 18 2

C 2 18

D 2 17

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41 Diagram 13 shows the formation of sodium ion. Rajah 13 menunjukkan pembentukan ion natrium.

Diagram 13

Rajah 13

Which of the following statements are true?

Kenyataan berikut yang manakah benar?

I

Sodium atom has an unstable electron arrangement.

Atom natrium mempunyai susunan elektron yang tidak stabil

II

Sodium ion has an octet electron arrangement as in neon atom.

Ion natrium mempunyai susunan elektron oktet seperti gas neon.

III

Sodium atom donates an electron to form a positive charge ion.

Atom natrium menderma satu elektron untuk membentuk ion bercas positif

IV

Sodium atom reacts with non-metals atoms to form ionic compounds.

Atom natrium bertindak balas dengan atom bukan logam membentuk sebatian ion.

A I and III only

B II and III only C I, III and IV only

D I, II, III and IV

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42 Table 3 shows the result of an experiment for three simple voltaic cells. Jadual 3 menunjukkan keputusan suatu eksperimen bagi tiga sel ringkas.

Positive terminal Negative terminal Voltage (V)

W X 0.3

Y X 0.8

X Z 1.9

The arrangement of the metals in the electrochemical series in descending order of

electropositivity is Susunan logam-logam mengikut keelektropositifan dalam siri elektrokimia mengikut

urutan menurun adalah

A W, Z, X, Y B Y, W, X, Z

C Y, W, Z, X D Z, X, W, Y

43 Table 4 shows information about three simple voltaic cell.

Jadual 4 menunjukkan maklumat tentang tiga sel ringkas.

Voltaic cell Electrodes used Voltage (V)

P Iron and Zinc 0.2

Q Zinc and magnesium 1.6

R Copper and magnesium 2.6

What is the potential difference of the voltaic cell which consists of copper and iron

electrodes?

Apakah nilai voltan bagi sel yang mengandungi elektrod kuprum dan ferum ?

A 0.4 B 0.6

C 0.8

D 2.4

Table 3

Jadual 3

Table 4

Jadual 4

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44 The equation shows the reaction between sulphuric acid and potassium hydroxide. Persamaan menunjukkan tindakbalas di antara asid sulfurik dan kalium hidroksida.

H2SO4 + 2KOH K2SO4 + 2H2O

What is the volume of 1.0 mol dm-3 potassium hydroxide solution which can neutralises

25.0 cm3 of 1.0 mol dm

-3 sulphuric acid?

Berapakah isipadu 1.0 mol dm-3

larutan kalium hidroksida yang boleh meneutralkan

25.0 cm3 1.0 moldm

-3 asid sulfurik

?

A 12.5 cm3 B 25.0 cm3

C 50.0 cm3 D 70.0 cm3

45 You are required to verify the cation and anion in a sample of ammonium chloride

salt solution. What substance can you use to verify the cation and anion?

Anda dikehendaki mengesahkan kation dan anion dalam satu samapel larutan garam

ammonium klorida.

Apakah bahan yang anda boleh gunakan untuknmengesahkan kaatioana dan anion?

Cation Kation

Anion Anion

A Nessler reagent

Reagen Nessler

Dilute nitric acid and silver nitrate

Asid nitrik cair dan argentums nitrat

B Nessler reagent

Reagen Nessler

Dilute hydrochloric acid and barium chloride

Asid hidrokloreik cair dan barium klorida

C Potassium thiocyanate

Kalium tiosianat

Dilute nitric acid and silver nitrate Asid nitrik

cair dan argentums nitrat

D Potassium thiocyanate

Kalium tiosianat

Dilute hydrochloric acid and barium chloride

Asid hidrokloreik cair dan barium klorida

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46 Table 5 shows the total volume of oxygen, collected in the decomposition of hydrogen peroxide catalysed by manganese(IV) oxide.

Jadual 5 menunjukkan jumlah isipadu oksigen yang dikumpul dalam penguraian hidrogen

peroksida yang dimangkinkan oleh mangan(IV) oxida.

Time (min)

Masa 0 1 2 3 4 5

Volume of gas

Isipadu gas (cm3)

0 11.20 23.60 29.70 31.40 31.40

Table 5

Jadual 5

What is the average rate of reaction

Berapakah kadar tindak balas purata?

A 6.28 cm3 min-1

B 7.85 cm3 min-1

C 9.90 cm3 min-1

D 11.80 cm3 min-1

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47 Diagram 14 shows the set up of the apparatus for an experiment to determine the rate of

reaction between sodium thiosulphate and sulphuric acid.

Rajah 14 menunjukkan susunan radas bagi eksperimen untuk menentukan kadar tindak

balas antara natrium tiosulfat dengan asid sulfuric.

Diagram 14 Rajah 14

Which of the following combination of the conditions take shortest time for the mark

X to disappear from sight? Antara kombinasi keadaan berikut yang manakah mengambil masa paling singkat

untuk tanda X hilang daripada penglihatan?

Sulphuric acid

Asid sulfurik

Sodium Thiosulphate solution

Larutan natrium tiosulfat

Volume

Isipadu

(cm3)

Concentration

Kepekatan

(mol dm-3)

Volume

Isipadu

(cm3)

Concentration

Kepekatan

(mol dm-3)

Temperature Suhu

(oC)

A 5 1.0 50 0.4 30

B 5 1.0 50 0.4 40

C 5 0.5 50 0.4 30

D 10 0.5 45 0.4 40

Sodium thiosulphate solution and sulphguric acid

Natrium tiosulfat dan asid sulfurik

White paper

Kertas putih

Mark X

Tanda X

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48 Table 6 shows the heat of combustion of three alcohols . Jadual 6 menunjukkan haba pembakaran bagi tiga alkohol.

Alcohol

Alkohol

Heat of combustion / kJmol-1

Haba pembakaran /kJmol-1

CH3OH -710

C2H5OH -1370

C4H9OH -2670

Which of the following factors increases the heat of cobustion of alcohols ? Antara faktor berikut , yang manakah menambahkan haba pembakaran alkohol ?

A Size of molecules decreases Saiz molekul berkurang

B Number of carbon atoms per molecule increases

Bilangan atom karbon per molekul bertambah

C Number of oxygen atoms per molecule increases Bilangan atom oksigen per molekul bertambah

D Number of hydrogen atoms per molecule increases

Bilangan atom hidrogen per molekul berkurang

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49 Diagram 15 shows energy level diagrams for the reaction between hydrochloric acid and potassium hydroxide .

Rajah 15 menunjukkan gambarajah aras tenaga untuk tindakbalas antara asid

hidroklorik dan kalium hidroksida .

Diagram 15

Rajah 15

Calculate the amount of heat released when 50 cm3 of 2 mol dm

-3 hydrochloric acid

reacts with 50 cm3 of 2 mol dm-3 potassium hydroxide solution. Hitungkan jumlah haba yang dibebaskan apabila 50 cm

3 asid hidroklorik 2 mol dm

-3

bertindak balas dengan 50 cm3 larutan kalium hidroksida 2 mol dm

-3

A 5.40 kJ B 10.8 kJ

C 27.0 kJ D 54.0 kJ

H+ + OH-

H 2 O

- 54 kJ mol-1

Energy

Tenaga

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50 The following equation shows the combustion of heptane, C7H16 in excess oxygen. Persamaan berikut menunjukkan pembakaran heptana, C7H16 dalam oksigen

berlebihan.

C7H16 + 11O2 → 7CO2 + 8H2O H = - 5512 kJ mol-1

In an experiment the combustion of heptane in excess oxygen releases 1378 kJ energy.

What is the mass of heptane used? Dalam satu eksperimen pembakaran heptana dalam oksigen berlebihan membebaskan

1378 kJ tenaga.

Berapakah jisim heptana yang digunakan?

[Relative atomic mass : H = 1; C = 12]

[Jisim atom relatif: H = 1 ; C = 12 ]

A 25.0 g

B 36.0 g

C 77.0 g

D 88.0 g

END OF QUESTION PAPER

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