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1 1. Which or the following substances is not an electrolyte? Antara bahan-bahan yang berikut yang manakah merupakan bukan elektrolit? A Lead(II) bromide Plumbum(II) bromida B Sodium sulphate Natrium sulfat C Ethanol Etanol D Dilute sulphuric acid Asid sulfurik cair 2. The relative atomic mass of an element is the number of times Jisim atom relatif suatu unsur ialah bilangan kali A The mass of an atom is greater than the mass of one carbon-12 atom Satu atom unsur lebih besar daripada jisim satu atom karbon-12 B The mass of an atom is greater than the mass of one oxygen atom Satu atom unsur lebih besar daripada jisim satu atom oksigen C The mass of an atom is greater than 1/12 of the mass of one carbon-12 atom Satu atom unsur lebih besar daripada 1/12 jisim satu atom karbon-12 D The mass of a molecule is greater than 1/12 of the mass of one carbon-12 atom Satu molekul unsur lebih besar daripada 1/12 jisim satu atom karbon-12 3. During electrolysis of silver nitrate solution using carbon electrodes, ions attracted to the anodes are Semasa elektrolisis larutan argentum nitrat dengan menggunakan elektrod karbon, ion- ion yang tertarik ke anod ialah A Silver ions only Ion-ion argentum sahaja B Nitrate ions only Ion-ion nitrat sahaja C Hydrogen ions and silver ions Ion-ion hidrogen dan ion-ion argentum D Hydroxide ions and nitrate ions Ion-ion hidroksida dan ion-ion nitrat

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Page 1: 1. Which or the following substances is not an electrolyte ...€¦ · Kesan rumah hijau III Depletion of the ozone layer Penipisan lapisan ozon IV Pollution of river water by toxic

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1. Which or the following substances is not an electrolyte?

Antara bahan-bahan yang berikut yang manakah merupakan bukan elektrolit?

A Lead(II) bromide Plumbum(II) bromida

B Sodium sulphate Natrium sulfat

C Ethanol Etanol

D Dilute sulphuric acid Asid sulfurik cair

2. The relative atomic mass of an element is the number of times

Jisim atom relatif suatu unsur ialah bilangan kali

A The mass of an atom is greater than the mass of one carbon-12 atom Satu atom unsur lebih besar daripada jisim satu atom karbon-12

B The mass of an atom is greater than the mass of one oxygen atom Satu atom unsur lebih besar daripada jisim satu atom oksigen

C The mass of an atom is greater than 1/12 of the mass of one carbon-12 atom Satu atom unsur lebih besar daripada 1/12 jisim satu atom karbon-12

D The mass of a molecule is greater than 1/12 of the mass of one carbon-12 atom Satu molekul unsur lebih besar daripada 1/12 jisim satu atom karbon-12

3. During electrolysis of silver nitrate solution using carbon electrodes, ions attracted to the

anodes are

Semasa elektrolisis larutan argentum nitrat dengan menggunakan elektrod karbon, ion-

ion yang tertarik ke anod ialah

A Silver ions only Ion-ion argentum sahaja

B Nitrate ions only Ion-ion nitrat sahaja

C Hydrogen ions and silver ions Ion-ion hidrogen dan ion-ion argentum

D Hydroxide ions and nitrate ions Ion-ion hidroksida dan ion-ion nitrat

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4. Which of these forms of pollution involve chemicals?

Antara pencemaran alam yang berikut yang manakah melibatkan bahan kimia ?

I Acid rain Hujan asid

II Greenhouse effect Kesan rumah hijau

III Depletion of the ozone layer Penipisan lapisan ozon

IV Pollution of river water by toxic waste Pencemaran air sungai oleh sisa toksik

A I and II only C I, II and IV only

I dan II sahaja I. II dan IV sahaja

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

II dan III sahaja I, II, III dan IV

5. Which of the following ions is responsible for the alkaline properties of an ammonia

solution ?

Antara ion yang berikut, yang manakah terdapat dalam larutan ammonia yang

bertanggungjawab ke atas sifat alkalinya?

A OH-

B H+

C NH3

D NH4+

6. What is the general formula for an alkene?

Apakah formula am bagi alkena?

A CnH2n

B CnH2n+2

C CnH2n+1OH

D CnH2n+1COOH

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7. Table 1 shows part of the results of determining the empirical formula of a substance.

Jadual 1 menunjukkan sebahagian daripada keputusan bagi penentuan formula empirik

suatu bahan.

X Y

Simplest ratio

Nisbah paling ringkas

1

3

Table 1 / Jadual 1

What is the empirical formula of this substance? Apakah formula empirik bahan itu ? A XY

B XY3

C X3Y

D X2Y3

8. Astatine is below iodine in Group 17 of Periodic Table. Astatin terletak di bawah iodin dalam Kumpulan 17 Jadual Berkala. Which of the following statements is true for astatine? Antara pernyataan berikut, yang manakah benar tentang astatin?

A B C D

Form basic oxide Membentuk oksida alkali Exists as monoatom Wujud sebagai monoatom Solid at room temperature Pepejal pada suhu bilik More electronegativity than iodine Lebih elektronegatif daripada iodin

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9. Ionic bond is a bond formed when

Ikatan ion terbentuk apabila

A non-metal atoms share electrons in a molecule

atom bukan logam berkongsi elektron dalam satu molekul

B a non-metal atom transfers electrons to a metal atom

atom bukan logam memindahkan elektron-elektron ke atom logam

C a metal atom transfer an electron to a non-metal atom

atom logam memindahkan elektron ke atom bukan logam

D Van der Waals forces attract the non-metal atoms

daya Van der Waals menarik atom-atom bukan logam

10. Pure ethanoic acid does not conduct electricity as it

Asid etanoik tulen tidak mengkonduksikan elektrik kerana

A consist of molecules

terdiri daripada molekul-molekul

B is a weak acid

merupakan asid lemah

C is an organic substance

merupakan bahan organic

D contains ions that do not move freely

mengandungi ion-ion yang tidak bebas bergerak

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11. Which of the following factor does not affect the electrolysis of an aqueous solution?

Antara faktor berikut, yang manakah tidak mempengaruhi elektrolisis larutan

akueus?

A. Concentration of ions in the electrolytes

Kepekatan ion-ion dalam elektrolit

B. Types of electrode used in the electrolysis

Jenis elektrod yang digunakan dalam elektolisis

C. Position of ions in electrochemical series

Kedudukan ion-ion dalam siri elektrokimia

D. Volume of electrolytes used in the electrolysis

Isipadu elektrolit yang digunakan dalam elektrolisis

12. Which of the following elements are in Group 18 in the Periodic Table of elements?

Antara unsur berikut, yang manakah adalah Kumpulan 18 dalam Jadual Berkala Unsur?

A. Helium and krypton

Helium dan kripton

B. Hydrogen and oxygen

Hidrogen dan oksigen

C. Oxygen and krypton

Oksigen dan kripton

D. Helium, hydrogen and oxygen

Helium, hidrogen dan oksigen

13. Which of the following is true about an alkali?

Antara pernyataan berikut, yang manakah benar tentang alkali?

A. An alkali is not corrosive

Alkali tidak mengkakis

B. An alkali is a base that soluble in water

Alkali ialah bes yang larut dalam air

C. A strong alkali has a low pH value

Alkali kuat mempunyai nilai pH yang rendah

D. A weak alkali has a high degree of ionization

Alkali lemah ialah alkali yang mempunyai kadar pengionan yang tinggi

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14. Which of the following statements is correct?

Antara pernyataan berikut, yang manakah adalah benar?

A. All carbonate salts are soluble in water

Semua garam karbonat larut dalam air

B. All chloride salts are soluble in water

Semua garam klorida larut dalam air

C. All nitrate salts are soluble in water

Semua garam nitrat larut dalam air

D. All sulphate salts are soluble in water

Semua garam sulfat larut dalam air

15. Which of the following pairs of homologous series and general formula is correct?

Antara berikut, yang manakah pasangan siri homolog dan formula amnya betul?

Homologous series

Siri homolog

General formula

Formula am

A Alkane

Alkana CnHn+2

B Alkene

Alkena CnH2n+1

C Alcohol

Alkohol CnH2n+1OH

D Carboxylic acid

Asid karboksilik CnHn+1COOH

16. Rusting causes a lot of financial loss. Which of the following is rust?

Pengaratan menyebabkan banyak kerugian kewangan. Antara berikut yang

manakah adalah karat?

A. Zinc oxide

Zink oksida

B. Iron(II) oxide

Ferum(II) oksida

C. Iron(III) oxide

Ferum(III) oksida

D. Lead(II) oxide

Plumbum(II) oksida

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17. Stimulants are drugs which are classified as

Stimulan adalah dadah yang boleh dikelaskan sebagai

A. Psychotherapeutic

Psikoteraputik

B. Penicilin

Penisilin

C. Streptomycin

Streptomisin

D. Paracetamol

Parasetamol

18. Which statement is correct about exothermic reaction?

Pernyataan manakah yang betul mengenai tindak balas eksotermik?

A. The heat absorbed during bond breaking is more than the heat released during

bond formation

Haba yang diserap semasa pemecahan ikatan adalah lebih daripada haba

yang dibebaskan semasa pembentukan ikatan

B. The heat absorbed during bond breaking is less than the heat released during

bond formation

Haba yang diserap semasa pemecahan ikatan adalah kurang daripada haba

yang dibebaskan semasa pembentukan ikatan

C. The heat absorbed during bond breaking is equal to the heat released during

bond formation

Haba yang diserap semasa pemecahan ikatan adalah sama dengan haba

yang dibebaskan semasa pembentukan ikatan

D. No heat is absorbed or release during bond breaking and bond formation

Tiada haba diserap atau dibebaskan semasa pemecahan ikatan dan

pembentukan ikatan

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19. Which of the following pairs show the correct uses of the isotopes?

Antara pasangan berikut, yang manakah benar mengenai kegunaan isotop?

Isotope

Isotop

Uses

Kegunaan

I Cobalt-60

Kobalt-60

To destroy bacteria in food

Untuk memusnahkan bakteria dalam makanan

II Carbon-14

Karbon-14

To estimate the age of artifacts

Untuk menganggar usia artifak

III Iodine-131

Iodin-131

To detect the location of tumour

Untuk mengesan kedudukan tumor

IV Sodium-24

Natrium-24

To detect leaks in underground petroleum piping

Untuk mengesan kebocoran paip petroleum bawah tanah

A. I and II only

I dan II sahaja

B. II and IV only

II dan IV sahaja

C. I, II and III only

I, II dan III sahaja

D. I, II, III and IV

I, II, III dan IV

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20. The diagram below shows the stages in the production of sulphuric acid using the

contact process.

Rajah di bawah menunjukan peringkat-peringkat dalam pembuatan asid sulfurik

menggunakan proses Sentuh.

Diagram 1 / Rajah 1

What is substance X?

Apakah bahan X?

A. Water

Air

B. Sulphur

Sulfur

C. Oxygen

Oksigen

D. Sulphur dioxide

Sulfur dioksida

21. Which of the following properties are true about an ionic compound? Sifat-sifat manakah benar mengenai sebatian ionik?

Melting point Takat lebur

Solubility in water Keterlarutan dalam air

A Low

Rendah Soluble Larut

B Low

Rendah Insoluble

Tidak larut

C High

Tinggi Soluble Larut

D High

Tinggi

Insoluble Tidak larut

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21. Diagram 2 shows the apparatus used to determine the position of metals in the Reactivity Series. Rajah 2 menunjukkan radas yang digunakan untuk menentukan kedudukan logam dalam Siri Kereaktifan.

Diagram 2/Rajah 2 What is the function of potassium manganate(VII) powder in this reaction? Apakah fungsi serbuk kalium manganat(VII) dalam tindak balas ini?

A To increase the amount of heat

Untuk meningkatkan haba

B To catalyse the reaction Untuk memangkinkan tindak balas

C To react with metal Untuk bertindak balas dengan logam D To supply oxygen Untuk membekalkan oksigen

Heat/

Haba

Heat/

Haba

Potassium manganate(VII) powder

Serbuk Kalium manganat(VII)

Glass wool/

wul kaca

Metal powder/

Serbuk logam

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23. Diagram 3 shows an apparatus set-up for a redox reaction. Rajah 3 menunjukkan susunan radas bagi tindak balas redoks.

Diagram 3 / Rajah 3

Which of these statements is correct? Antara pernyataan berikut, yang manakah benar?

A The colour of solution at electrode Y does not change

Warna larutan di elektrod Y tidak berubah

B Electron flows from electrode X to electrode Y

Elektron mengalir dari elektrod X ke elektrod Y

C The purple solution at electrode X decolourises

Larutan ungu di elektrod X dilunturkan

D Sulphuric acid acts as the reducing agent

Asid sulfurik bertindak sebagai agen penurunan

24. Which of the following ions exist in aluminium nitrate solution? Ion-ion manakah hadir di dalam larutan aluminium nitrat?

A Al3+, NO3-

B Al3+, NO3-, OH- , H+

C Al3+, NH4+, NO3

- , OH-

D Al3+, NO2-, OH- , H+

Potassium bromide solution

Larutan kalium bromida

Carbon Y /

Karbon Y Carbon X

Karbon X

Dilute sulphuric acid

Asid sulfurik cair

Acidified potassium

manganate(VII) solution

Larutan kalium manganat (VII)

berasid

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25. Which diagram shows an endothermic reaction? Rajah yang manakah menunjukkan tindak balas endotermik?

A

B

C

D

26. Which of the following substances is a hydrocarbon? Antara bahan berikut, yang manakah adalah hidrokarbon?

A Pentanol Pentanol B 2 methylbutane 2 metilbutana C Methanoic acid Asid metanoik D Ethyl ethanoate

Etil etanoat

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27. Which of the following circuits will the bulb lights up? Litar manakah yang mentolnya akan menyala?

I

II

III

IV

A I and III

I dan III

B I and IV I dan IV

C II and III II dan III

D II and IV II dan IV

Glucose solution/

Larutan glukosa

Larutan glukosa

Aqueous ammonia/

Larutan ammonia akues

Ammonia akueus

Hydrogen chloride in

tetrachloromethane/

Hidrogen klorida dalam

tetraklorometana

Molten Lead(II) bromide/

Leburan plumbum(II)

bromida

Heat

Haba

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28. Diagram 4 shows a graph of volume of hydrogen gas liberated against time when magnesium ribbon is placed in dilute sulphuric acid. Rajah 4 menunjukkan graf isipadu gas hidrogen yang dibebaskan melawan masa

apabila pita magnesium diletakkan ke dalam larutan asid sulfurik cair.

Diagram 4/Rajah 4

Which of the following statements explains the change in the gradient of the curve? Pernyataan manakah menerangkan perubahan kecerunan lengkung?

A Total surface area of magnesium ribbon increases Jumlah luas permukaan pita magnesium bertambah

B Temperature of the reacting mixture decreases Suhu campuran bahan tindak balas berkurang

C Mass of magnesium sulphate formed increases Jisim magnesium sulfat yang terbentuk bertambah

D Concentration of sulphuric acid decreases Kepekatan asid sulfurik berkurang

Volume of gas (cm3 )/

Isipadu gas (cm3 )

Time (s)

Masa (s)

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29. Diagram 5 shows the symbol of X atom. Rajah 5 menunjukkan simbol bagi atom X.

Diagram 5/Rajah 5

What is the electron arrangement for ion of X? Apakah susunan elektron bagi ion X?

A 2.8

B 2.8.1

C 2.8.2

D 2.8.8.5

30 Table 2 shows the boiling points of three elements in Group 17. Jadual 2 menunjukkan takat didih bagi tiga unsur dalam Kumpulan 17.

Halogen Halogen

Boiling point (oC) Takat didih (oC)

Fluorine Fluorin

-188

Chlorine Klorin

-35

Bromine Bromin

59

Table 2/Jadual 2

Which of the following best explain why the boiling point increases down the group? Pernyataan manakah yang menerangkan mengapa takat didih bertambah apabila menuruni kumpulan?

A Increase in proton number.

Pertambahan nombor proton

B Increase in strength of the intermolecular forces Pertambahan kekuatan daya tarikan antara molekul

C Increase in number of occupied shells of the atom Pertambahan bilangan petala berisi elektron dalam atom

D Increase in strength of the covalent bond between the atoms Pertambahan kekuatan ikatan kovalen antara atom-atom

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31 Table 3 shows the concentration and pH value of hydrochloric acid and ethanoic acid

Jadual 3 menunjukkan kepekatan dan nilai pH bagi asid hidroklorik dan asid etanoik

Type of acid

Jenis asid

Concentration / mol dm-3

Kepekatan/ mol dm-3

pH value

nilai pH

Hydrochloric acid

Asid hidroklorik

0.1

1

Ethanoic acid

Asid etanoik

0.1

4

Table 3/ Jadual 3

Which of the following statements are true about both acids?

Antara pernyataan berikut yang manakah benar tentang kedua-dua asid?

I Hydrochloric acid is a stronger acid compared to ethanoic acid.

Asid hidroklorik adalah asid lebih kuat berbanding asid etanoik.

II Concentration of hydrogen ions is higher in hydrochloric acid compared with

ethanoic acid.

Kepekatan ion hydrogen lebih tinggi dalam asid hidroklorik berbanding dengan

asid etanoik.

III The degree of dissociation of hydrochloric acid in water is higher than ethanoic

acid.

Darjah penceraian asid hidroklorik dalam air lebih tinggi berbanding asid etanoik.

IV Both acids can neutralized an alkali to produce salt and water

Kedua-dua asid dapat meneutralkan alkali untuk menghasilkan garam dan air

A I and III B III and IV C I, II and III D I, II, III and IV

32 Which of the following salts is prepared using double decomposition method?

Antara yang berikut, garam manakah yang disediakan dengan menggunakan

kaedah penguraian ganda dua?

A Copper(II) sulphate B Lead(II) chloride

Kuprum(II) sulfat Plumbum(II) klorida

C Iron(II) nitrate D Potassium carbonate

Ferum(II) nitrat Kalium karbonat

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33 The reaction C2H4 + 3O2 → 2CO2 + 2H2O is exothermic because Tindak balas C2H4 + 3O2 → 2CO2 + 2H2O adalah eksotermik kerana

A more bonds are broken than are formed. lebih banyak ikatan diputuskan berbanding dengan ikatan yang dibentuk.

B more bonds are formed than are broken. lebih banyak ikatan dibentuk berbanding dengan ikatan yang diputuskan.

C the energy needed to break the bonds is greater than that released on forming new bonds. tenaga yang diperlukan untuk memutuskan ikatan lebih besar daripada tenaga yang dibebaskan semasa pembentukan ikatan baru.

D the energy needed to break the bonds is less than that released on forming new bonds. tenaga yang diperlukan untuk memutuskan ikatan adalah lebih rendah daripada tenaga yang dibebaskan semasa pembentukan ikatan baru.

34 The following ionic equation shows the reaction between Ba2+ and SO42– ions.

Persamaan ion di bawah menunjukkan tindak balas antara Ba2+ dan SO42– ions.

Ba2+(aq) + SO4

2−(aq) → BaSO4(s), ∆H= −118 kJ mol−1

Ba2+(ak) + SO4

2−(ak) → BaSO4(p), ∆H= −118 kJ mol−1 Which of the following is true about the above equation? Manakah yang berikut benar tentang persamaan di atas?

A Heat is absorbed from the surroundings Haba diserap dari pesekitaran.

B The temperature of the mixture increases. Haba campuran meningkat.

C The reaction is endothermic. Tindak balas ini endotermik.

D 118 kJ of heat is absorbed when 1 mole of barium sulphate is formed. 118 kJ haba diserap apabila 1 mol barium sulfat terbentuk.

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35 The equation is represents the decomposition of hydrogen peroxide.

Persamaan berikut mewakili tindak balas penguraian hidrogen perosida.

2H2O2 → 2H2O + O2

How many moles of hydrogen peroxide H2O2 is required to produce 480 cm3 of oxygen

gas at room condition?

[Molar volume of gas = 24 dm3 mol-1 at room condition]

Berapakah bilangan mol hidrogen peroksida, H2O2 yang diperlukan untuk menghasilkan

480 cm3 gas oksigen pada keadaan bilik?

[Isipadu molar gas = 24 dm3 mol-1pada keadaan bilik]

A 0.01

B 0.02

C 0.04

D 0.05

36 Which of the following gas has the same number of atoms? [ Avogadro’s constant = 6 × 1023 mol-1] Antara gas-gas berikut, yang manakah mempunyai bilangan atom yang sama? [Pemalar Avogadro = 6.02 × 1023 mol-1]

I 0.5 mol of oxygen gas, O2

0.5 mol gas oksigen, O2

II 0.5 mol of carbon dioxide gas, CO2

0.5 mol gas karbon dioksida, CO2

III 1.5 mol of helium gas, He 1.5 mol gas helium, He

IV 1.5 mol of hydrogen gas, H2

1.5 mol gas hidrogen, H2

A I and II

I dan II

B II and III II dan III

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C III and IV III dan IV

D I and IV I dan IV

37 1.04 g of metal M react with 0.48 g of oxygen to form M oxide. Determine the empirical

formula of M oxide.

1.04 g logam M bertindak balas dengan 0.48 g oksigen untuk membentuk oksida M.

Tentukan formula empirik oksida M.

[ relative atomic mass : O = 16 ; M = 52 ]

A MO

B MO2

C M2O3

D M3O2

38 Which explanation is paired correctly with the application of the rate of reaction?

Pasangan manakah yang betul bagi menerangkan aplikasi kadar tindak balas?

Application

Aplikasi

Explanation

Penerangan

A It is easier to light a fire using

small pieces of charcoal.

Adalah lebih mudah menyalakan

api menggunakan ketulan kecil

arang.

Total surface area exposed to air is

smaller.

Jumlah luas permukaan terdedah

kepada udara adalah lebih kecil.

B Fish and meat are normally kept

in a freezer.

Ikan dan daging disimpan dalam

pembeku sejuk.

The low temperature slows down

the rate of bacterial metabolism.

Suhu yang rendah merendahkan

kadar metabolisme bakteria.

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C Food cooks faster in a pressure

cooker.

Makanan dimasak lebih cepat

dalam periuk tekanan.

The high pressure decreases the

number of water molecules in

contact with the food.

Tekanan yang tinggi mengurangkan

bilangan molekul air yang bersentuh

dengan makanan.

D Iron is used in the industrial

manufacture of ammonia.

Besi digunakan dalam

pembuatan ammonia dalam

industri.

To increase the activation energy of

the reaction.

Untuk meningkatkan tenaga

pengaktifan tindak balas.

39 Diagram 6 shows the position of element of T and U in the Periodic Table.

Rajah 6 menunjukkan kedudukan unsur T dan U di dalam Jadual Perkalaan Unsur.

Diagram 6 / Rajah 6

Which of the following is the formula of compound formed when T element reacts with U element? Manakah antara berikut merupakan formula kimia bagi sebatian yang terbentuk apabila unsur T bertindak balas dengan unsur U?

A TU2 C T2U3

B T2U D T3U2

T

U

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Heat

Panaska

40 Diagram 7 below shows the method of preparing a soluble salt. Rajah 7 di bawah menunjukkan kaedah penyediaan suatu garam larut.

Diagram 7 / Rajah 7

Which of the following could be X? Antara yang berikut, yang manakah mungkin X?

A

C

Copper B sodium oxide Kuprum Natrium oksida Zinc oxide D Potassium hydroxide Zink oksida Kalium hidroksida

41 The following solutions have same concentration. Which solution has the highest pH value?

Larutan yang berikut mempunyai kepekatan yang sama. Larutan yang manakah mempunyai nilai pH yang paling tinggi?

A Nitric acid Asid nitrik

B Ethanoic acid Asid etanoik

C Sulphuric acid Asid sulfurik

D Hydrochloric acid Asid hidroklorik

The solution is allowed to cool

Larutan dibiarkan sejuk

X

Excess X

X berlebihan

50 cm

3 of 2.0 mol dm

-3acid

50 cm3 asid 2.0 mol dm

-3

Salt solution

Larutan garam

Salt solution

Larutan garam

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42. Diagram 8 below shows the set-up of apparatus for the electrolysis of iron (II) sulphate solution. Rajah 8 di bawah menunjukkan susunan radas bagi elektrolisis larutan ferum (II) sulfat.

Diagram 8 / Rajah 8

What is formed at carbon electrode X? Apakah yang terbentuk di elektrod karbon X? A Iron Ferum

B Oxygen Oksigen

C Sulphur dioxide Sulfur dioksida

D Hydrogen gas Gas hydrogen

Carbon electrode YElektrod karbon Y

Elektrod karbon X

Dilute iron(II) sulphate solutionLarutan ferum(II) sulfat cair

Carbon electrode X

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43. Diagram 9 below shows a series of reactions Rajah 9 di bawah menunjukkan satu siri tindak balas.

.

Diagram 9 / Rajah 9

What is compound Z? Apakah sebatian Z? A Ethanol Etanol

B Propanoic acid Asid propanoik

C Ethyl ethanoate Etil etanoat

D Propyl ethanoate

Propil etanoat

44. Diagram 10 below shows two volumetric flasks containing 2.0 mol dm-3 of

SugarGula

Compound XSebatian X

Acidified potassiumdichromate(VI) solution

Larutan kaliumDIKRomat(VI) berasidYeast

Yis

Compound YSebatian Y

Compound ZSebatian Z

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hydrochloric acid and 0.2 mol dm-3 hydrochloric acid. Rajah 10 di bawah menunjukkan dua kelalang isipadu yang mengandungi asid hidroklorik 2.0 mol dm-3 dan asid hidroklorik 0.2 mol dm-.3

Diagram 10 / Rajah 10

What is the volume of 2.0 mol dm-3 hydrochloric acid needed to prepare 100 cm3 of 0.2 mol dm-3 hydrochloric acid?

Apakah isipadu asid hidroklorik 2.0 mol dm-3 yang diperlukan untuk menyediakan 100 cm3 asid hidroklorik 0.2 mol dm-3?

A 20.0 cm3 B 10.0 cm3

C 5.0 cm3 D 1.0 cm3

50 cm hydrochloric acid2.0 mol dm ־³

־³50 cm asid hidroklorik2.0 mol dm

³

³

100 cm hydrochloric acid0.2 mol dm ־³

־³100 cm asid hidroklorik0.2 mol dm

³

³

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45. Diagram 11 below shows the set-up of the apparatus for an experiment to determine the rate of reaction between sodium thiosulphate solution and sulphuric acid.

Rajah 11di bawah menunjukkan susunan radas bagi eksperimen untuk menentukan kadar tindak balas di antara larutan natrium tiosulfat dan asid sulfurik.

Diagram 11 / Rajah 11

Which of the following combination of conditions take the shortest time for the mark X to disappear from sight?

Antara kombinasi keadaan berikut yang manakah mangambil masa paling singkat untuk tanda X hilang daripada penglihatan?

Asid sulfurik Sulphuric acid

Larutan natrium tiosulfat Sodium thiosulphate solution

Suhu / °C

Temperature / °C

Isipadu / cm3

Volume / cm3

Kepekatan / mol dm-3

Concentration / mol dm-3

Isipadu / cm3

Volume / cm3

Kepekatan / mol dm-3

Concentration / mol dm-3

A 10 1.0 50 0.5 30

B 10 1.0 50 0.5 40

C 10 0.5 50 0.5 30

D 20 0.5 40 0.5 40

Look vertically downLihat tegak ke bawah

ShakeGonceng

White paperKertas putih

Sodium thlosulphate solutionand sulphuric acid solution

Larutan natrium tiosulfatdan larutan asid sulfurik

Mark XTanda X

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46. Diagram 12 below shows a cold pack used to relieve pain due to injury. Rajah 12 di bawah menunjukkan pek sejuk yang digunakan untuk melegakan kesakitan

akibat kecederaan.

Diagram 12 / Rajah 12

When substance P and water are mixed, heat is absorbed. Which of the following substances is most suitable to be P?

Apabila bahan P dan air dicampur, haba diserap. Antara berikut, yang manakah paling sesuai sebagai P?

A Sodium chloride C Ammonium nitrate Natrium klorida Ammonium nitrat

B Hydrochloric acid D Potassium hydroxide Asid hidroklorik Kalium hidroksida

47. Diagram 13 below shows the setup of apparatus for the determination of heat of reaction. Rajah 13 di bawah menunjukkan susunan radas untuk menentukan haba tindak balas.

Diagram 13 / Rajah 13

Based on diagram 13, which of the following statement is true? Berdasarkan rajah 13, pernyataan berikut yang manakah benar? I Process of bond formation occurs Proses pembentukan ikatan berlaku

II The temperature increases during the reaction Suhu meningkat semasa tindak balas berlaku

AcidAsid

Thermometer

Termometer

MetalLogam

Initial experiment

Awal eksperimen

Final experiment

Akhir eksperimen

30 C° 35 C°

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III The value of ∆H for the reaction is positive Nilai ∆H dalam tindak balas ini adalah positif

IV The energy content of the products is lower than the energy content of the reactants

Kandungan tenaga hasil tindak balas lebih rendah daripada kandungan tenaga bahan tindak balas

A I and II only I dan II sahaja

B III and IV only III dan IV sahaja

C I, II and IV only I, II dan IV sahaja

D I, II, III and IV

I, II, III dan IV

48. The Diagram 14 below shows the apparatus arrangement to investigate the oxidation and reduction in terms of the transfer of electron at a distance.

Rajah 14 di bawah menunjukkan susunan radas bagi mengkaji pengoksidaan dan penurunan berdasarkan pemindahan elektron pada satu jarak.

Diagram 14 / Rajah 14

Which of the following represents the half equation for reaction occurs at P and Q

Carbon QKarbon Q

Carbon PKarbon P

G

Bromine waterAir bromin

Sulphuric acidAsid sulfurik

Iron(II) sulphate solutionLarutan ferum(II) sulfat

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electrode. Antara berikut yang manakah mewakili persamaan setengah bagi tindak balas yang

berlaku di elektrod P dan Q.

P Q

A Fe2+ → Fe3+ + e Br2 + 2e → 2Br-

B Fe2+ → Fe3+ + e C + 4e → C4-

C 2SO42- → S2O8

2- + 2e Br2 + 2e → 2Br-

D Fe → Fe2+ + 2e 2Br- → Br2 + 2e

49. When 25 cm3 of 1.0 mol dm-3 hydrochloric acid is mixed with 25 cm3 of 1.0 mol dm-3 potassium hydroxide solution the temperature increases by 14 ºC.

Apabila 25 cm3 asid hidroklorik 1.0 mol dm-3 dicampurkan dengan 25 cm3 larutan kalium hidroksida 1.0 mol dm-3 suhu meningkat sebanyak 14 ºC.

What is the heat change for this reaction? Berapakah perubahan haba bagi tindak balas ini? [ Specific heat capacity of water = 4.2 J g-1 ºC-1 ] [ Muatan haba tentu air = 4.2 J g-1 ºC-1 ] A 1470 J B 2352 J C 2940 J

D 3280 J

50. Diagram 15 below shows the molecular formula of two cleaning agent, X and Y.

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Rajah 15 di bawah menunjukkan formula molekul bagi dua agen pencuci X dan Y.

CH3(CH2)14COONa

Agen pencuci X Cleaning agent X

CH3(CH2)11OSO3Na

Agen pencuci Y Cleaning agent Y

Diagram 15/ Rajah 15

Penyataan manakah tentang X dan Y adalah betul?

What statement about X and Y is correct?

X Y

A Non-biodegradable. Tidak terbiodegradasi.

Biodegradable. .Terbiodegrasi.

B Effective in acidic water. Berkesan dalam air berasid.

Less effective in acidic water. Kurang berkesan dalam air berasid.

C Less effective in hard water. Kurang berkesan dalam air liat.

Effective in hard water. Berkesan dalam air liat.

D Does not reduce the surface tension of white. Tidak mengurangkan ketegangan permukaan air.

Reduce the surface tension of water. Mengurangkan ketegangan permukaan air.

END OF QUESTIONS PAPER

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