1

1 Which of the following is not an application of electrolysis in industry?

Antara berikut yang manakah bukan kegunaan elektrolisis dalam industri?

A Purification of metals

Penulenan logam

B Melting of metals

Peleburan logam

C Electroplating of metals

Penyaduran logam

D Extraction of metals

Pengekstrakan logam

2 What is the meant by number of mole? Apakah yang dimaksudkan dengan bilangan mol?

A The volume occupied by 6.02 X 1023

particles Isi padu yang dipenuhi oleh zarah sebanyak 6.02 X 10

23

B The atomic mass of a substance which consist of 6.02 X 1023

atoms Jisim atom suatu bahan yang terdiri daripada 6.02 X 10

23 atom

C The molecular mass of a substance which consist of 6.02 X 1023

molecules Jisim molekul suatu bahan yang terdiri daripada 6.02 X 10

23 molekul

D The quantity of a substance which has the same number of particles as the number of

atoms in 12.00 g of carbon-12 Kuantiti bahan yang mempunyai bilangan zarah yang sama dengan bilangan atom bagi

12.00 g karbon-12.

3. Which of the following is non-electrolyte?

Yang manakah yang berikut bukan elektrolit?

A Dilute sulphuric acid

Asid sulfurik cair

B Silver chloride precipitate

Mendakan argentum klorida

C Sodium chloride solution

Larutan natrium klorida

D Copper(II) nitrate solution

Larutan kuprum(II) nitrat

2

4 Which of the following medicine is suitable for treatment of tuberculosis?

Ubat yang manakah adalah sesuai untuk merawat penyakit tibi ?

A Aspirin

Aspirin

B Codeine

Kodein

C Barbiturate

Barbiturate

D Streptomycin

Streptomisin

5 Which of the following particles in a solution is responsible for its acidic properties when

suphur dioxide gas dissolve in water ?

Antara zarah berikut, yang manakah dalam larutan menyebabkan sifat keasidan apabila gas

sulfur dioksida larut dalam air ?

A SO32-

B OH−

C H+

D SO42-

6 Which of the following substance 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

3

7 Which of the following contains 6.02 x 1023

atoms?

Antara berikut yang manakah mengandungi 6.02 x 1023

atom?

A 1 mol of neon, Ne

1 mol neon, Ne

B 1 mol of ammonia, NH3

1 mol ammonia, NH3

C 1 mol of chlorine gas, Cl2

1 mol gas klorin, Cl2

D 1 mol of nitrogen gas, N2

1 mol gas nitrogen , N2

8. Which of the inert gases below is used in a diver’s oxygen tank?

Yang manakah antara gas berikut digunakan dalam tangki oksigen penyelam?

A Neon

Neon

B Argon

Argon

C Helium

Helium

D Krypton

Kripton

4

9 Table 1 shows the electron arrangement of atoms of elements P, Q, R, S and T.

Jadual 1 menunjukkan susunan elektron bagi atom-atom unsur P, Q, R, S dan T.

Element Electron arrangement Unsur Susunan elektron

P 2.8.8

Q 2.8.3

R 2.8.4

S 2.8.7

T 2.8.1

Table 1

Jadual 1

Which of the pair of elements will combine to form a compound which will

conduct electricity in molten state?

Pasangan unsur yang manakah bergabung membentuk sebatian di mana boleh

mengkonduksikan elektrik dalam keadaan leburan?

A S and T

S dan T

B R and S

R dan S

C P and R

P dan R

D Q and T

Q dan T

10 Which of the following will change red litmus paper into blue?

Antara yang berikut, manakah akan menukar kertas litmus merah kepada biru?

A Dry hydrogen chloride gas

Hidrogen klorida gas yang kering

B Solid of sodium hydroxide

Pepejal natrium hidroksida

C Sulphur dioxide dissolved in water.

Sulfur dioksida yang larut dalam air.

D Ammonia gas dissolved in water.

Gas ammonia yang larut dalam air

5

11 Which of the following metals when paired with copper to build a chemical cell will

generate the highest voltage?

Antara logam berikut, yang manakah apabila dipasangkan dengan kuprum untuk membina sel

kimia akan menghasilkann voltan tertinggi?

A Zinc

Zink

B Lead

Plumbum

C Aluminium

Aluminium

D Magnesium

Magnesium

12 Which statement is correct about Argon, Ar?

Pernyataan yang manakah betul mengenai Argon, Ar?

A Exist as diatomic molecules

Wujud sebagai molekul dwiatom

B Do not form chemical bonds

Tidak membentuk ikatan kimia

C Form ions with different valencies

Membentuk ion dengan valensi yang berbeza

D Combine with transition metals to form coloured compounds

Bergabung dengan logam peralihan membentuk sebatian berwarna

6

13. Table 2 shows information about two acids

Jadual 2 di bawah menunjukkan maklumat dua asid

Acid

Asid

Concentration

Kepekatan

pH

pH

Sulphuric acid

Asid sulfurik 0.01 mol dm-3

1.1

Hydrochloric acid

Asid hidroklorik 0.01 mol dm-3

2.0

Table 2

Jadual 2

Which of the following statement is true?

Manakah antara pernyataan berikut adalah benar?

A Sulphuric acid is more concentrated than hydrochloric acid

Asid sulfurik adalah lebih pekat berbanding asid hidroklorik

B Sulphuric acid is a strong acid while hydrochloric acid is a weak acid

Asid sulfurik adalah asid kuat manakala asid hidroklorik adalah asid lemah

C Concentration of H+ ions in sulphuric acid is higher than that of hydrochloric acid

Kepekatan ion H+ dalam asid sulfuric adalah lebih tinggi berbanding asid hidroklorik

D Sulphuric acid ionises completely while hydrochloric acid ionizes partially in water

Asid sulfurik mengion lengkap manakala asid hirdoklorik mengion separa dalam air

7

14 Which of the following is an insoluble salt?

Antara berikut, yang manakah ialah garam tak terlarutkan?

A Ca(NO3)2

B PbSO4

C CuCl2

D (NH4)2CO3

15 Which of the following homologous series are correctly matched with the functional

group?

Antara yang berikut, siri homolog manakah yang betul dipadankan dengan kumpulan

berfungsi?

Homologous series

Siri homolog

Functional group

Kumpulan berfungsi

A Alkane

Alkana

– H –

B Alcohol

Alkohol

– OH

C Ester

Ester

– COOH

D Carboxylic acid

Asid karboksilik

– COO –

8

16 Iron (III) ions can be reduced to iron (II) ions by substance X.

Which of the following is substance X?

Ion ferum (III) boleh diturunkan kepada ion ferum (II) oleh bahan X.

Antara berikut, yang manakah bahan X?

A Zinc

Zink

B Chlorine

Klorin

C Acidified potassium manganate (VII) solution

Larutan kalium manganat (VII)berasid

D Acidified potassium dichromate (VI) solution

Larutan kalium dikromat (VI) berasid

17 Diagram 1 shows the structure of a soap ion.

Rajah 1 menunjukkan struktur ion sabun.

Diagram 1

Rajah 1

Which of the following is true about Diagram 1 when soap is used to clean greasy stain?

Antara berikut, yang manakah benar tentang Rajah 1 apabila sabun digunakan untuk

membersihkan kotoran gris?

A Hydrophobic is alkaline Hidrofobik adalah alkali

B Hydrophilic soluble in grease Hidrofilik larut dalam gris

C Hydrophobic soluble in water Hidrofobik larut dalam air

D Reduce the surface tension of water Mengurangkan ketegangan permukaan air

9

18. Heat of reaction is

Haba tindak balas ialah

A The energy needed to start a chemical reaction Tenaga yang diperlukan untuk memulakan tindak balas kimia

B The energy released when chemical bonds are formed Tenaga yang dilepaskan apabila ikatan kimia terbentuk

C The energy change due to a change in physical state Perubahan tenaga kerana perubahan keadaan fizikal

D The energy change due to the difference in the energy contained in the reactants

and the products Tenaga berubah kerana perbezaan tenaga yang dipunyai pada bahan tindakbalas dan

produk

19 Table 3 shows the proton numbers of element X and Y.

Jadual 3 berikut menunjukkan nombor proton bagi unsur X dan Y.

Element

Unsur

Proton number

Nombor proton

X 11

Y 19

Table 3 Jadual 3

Which statements are true about elements X and Y?

Antara pernyataan berikut, yang manakah benar tentang unsur X dan Y?

I Atoms X dan Y have one valence electron.

Atom X dan Y mempunyai satu elektron valens.

II Elements X is more reactive than element Y.

Unsur X lebih reaktif daripada unsur Y.

III Atom X has a bigger atomic size than atom Y.

Saiz atom X lebih besar daripada saiz atom Y.

IV Elements X dan Y are in the same group in the Periodic Table.

Unsur X dan Y berada dalam kumpulan yang sama dalam Jadual Berkala.

10

A I and III only

I dan III sahaja

B I and IV only

I dan IV sahaja

C II and III only

II dan III sahaja

D II and IV only

II dan IV sahaja

20 What is the main component of ceramic?

Apakah komponen utama seramik?

A Silicon

silikon

B Silicate

Silikat

C Boron oxide

Boron oksida

D Sodium oxide

Natrium oksida

11

21 Which of the following represents the electron arrangement for the compound sodium

chloride, NaCl?

Antara yang berikut yang manakah mewakili susunan elektron bagi sebatian natrium

klorida, NaCl?

A

B

C

D

12

22 Metal X has the following properties.

Metal X mempunyai sifat-sifat berikut.

Does not corrode if it is in contact with Zn, Al or Mg

Tidak mengakis jika ia bersentuhan dengan Zn, Al atau Mg

Corrode rapidly if it is in contact with Sn, Pb or Cu

mengakis dengan cepat jika ia bersentuhan dengan Sn, Pb atau Cu

What is metal X?

Apakah logam X?

A Silver, Ag

Argentum,Ag

B Iron, Fe

Ferum, Fe

C Calcium, Ca

Kalsium, Ca

D Sodium, Na

Natrium, Na

13

23. Diagram 2 shows the changes of iron (II) sulphate to iron (III) sulphate using bromine water. Rajah 2 menunjukkan perubahan ferum (II) sulfat kepada ferum (III) sulfat menggunakan air bromin.

Diagram 2

Rajah 2

Which of the following is true regarding the reaction?

Antara berikut manakah benar tentang tindak balas tersebut?

A Iron(II) ions are reduced

Ion ferum(II) diturunkan

B Bromine water is oxidized

Air bromin dioksidakan

C Green solution turns brown

Larutan hijau bertukar perang

D Iron(II) ions gain electron

Ion ferum(II) menerima elektron

14

24 Diagram 3 shows the setup of apparatus for electrolysis of zinc chloride solution 2.0 mol

dm-3

.

Rajah 3 menunjukkan susunan radas bagi elektrolisis larutan zink klorida 2.0 mol dm-3

.

Diagram 3

Rajah 3

Electrode X

Elektrod X

Electrode Y

Electrode Y

A Oxygen gas

Gas oksigen

Zinc

Zink

B Chlorine gas

Gas klorin

Hydrogen gas

Gas Hidrogen

C Oxygen gas

Gas oksigen

Hydrogen gas

Gas Hidrogen

D Zinc

Zink

Chlorine gas

Gas klorin

15

25 Diagram 4 shows the energy level diagram for the following equation:

Rajah 4 menunjukkan gambar rajah aras tenaga bagi persamaan yang berikut :

Diagram 4

Rajah 4

What is the value of x?

Apakah nilai x?

A +40

B + 140

C –140

D –40

P + Q S H = x kJ

16

26 Diagram 5 shows the structural formula of pent-1-ene.

Rajah 5 menunjukkan formula struktur pent-1-ene.

H H H H H

| | | | |

H – C = C – C – C – C – H

| | |

H H H

Diagram 5

Rajah 5

Which of the following are structural formulae and correct names for isomers of

pent-1-ena? Antara berikut yang manakah formula struktur dan nama yang betul bagi isomer pent-1-ene?

I H H H H H

| | | | |

H – C – C = C – C – C – H

| | |

H H H

Pent-2-ene Pent-2-ena

II

H H CH3 H

| | | |

H – C = C – C – C – H

| |

H H

3- methylbut-1-ene 3- metilbut-1-ena

III H H H H

| | | |

H – C – C = C – C – H

| |

H H

Pent-3-ene Pent-3-ena

IV

H H H

| | |

H – C – C = C – C – H

| | | 2 - methylbut-2-ene

H CH3 H 2- metilbut-2-ena

17

A I and IV I dan IV

B II and III II dan III

C I, II and IV I, II dan IV

D I, II, III and IV I, II, III dan IV

27 Diagram 6 shows the set-up of the apparatus for an electrolytic cell.

Rajah 6 menunjukkan susunan radas bagi sel elektrolisis

Diagram 6

Rajah 6

Which of the following ions are attracted to anode and cathode?

Manakah antara ion berikut akan tertarik ke anod dan katod?

Anode

Anod

Cathode

Katod

A SO4 2-

Cu2+

B Cu2+

OH-

C SO4 2-

, OH- Cu

2+, H

+

D Cu2+

, H+ SO4

2-, OH

-

18

28. Which of the following metal will produce the lowest rate of reaction with silver nitrate?

Antara logam berikut manakah akan menghasilkan kadar tindak balas yang paling rendah dengan

argentum nitrat?

A Aluminium

Aluminium

B Magnesium

Magnesium

C Lead

Plumbum

D Zinc

Zink

29 The formula of carbonate ion and nitrate ion is CO32-

and NO3- respectively. If the

formula of carbonate salt is J2CO3, then what is the formula of nitrate salt of J ?

Formula bagi ion karbonat dan ion nitrat adalah CO32-

dan NO3-. Jika formula bagi garan

karbonat adalah J2CO3, Apakah formula garam nitrat bagi J?

A JNO3

B J2NO3

C J(NO3)2

D J2(NO3)3

19

30

Which of the following is the correct arrangement of the elements in the Periodic

Table in increasing electropositivity.

Antara yang berikut merupakan susunan yang betul bagi unsur-unsur dalam Jadual Berkala

mengikut peningkatan kelektropositifan.

A S,Q,R,P

B S,R,Q,P

C P,Q,R,S

D R,P,Q,S

31 Table 4 shows the degree of dissociation of four solutions of alkali which have the

same concentration.

Jadual 4 menunjukkan darjah penceraian untuk empat larutan alkali yang mempunyai

kepekatan yang sama.

Solution

Larutan

Degree of dissociation

Darjah Penceraian

W Medium Sederhana

X High Tinggi

Y Very High Sangat tinggi

Z Low Rendah

Table 4

Jadual 4

Diagram 7

Rajah 7

20

Which solution has the lowest of pH value?

Larutan manakah mempunyai nilai pH yang paling rendah?

A W

B X

C Y

D Z

32 Diagram 8 shows the formation of a white precipitate when solution J and solution K are

mixed.

Rajah 8 menunjukkan pembentukan mendakan putih apabila larutan J dan larutan K

dicampurkan.

Diagram 8

Rajah 8

Which of the following is the most suitable to be solution J and solution K?

Antara berikut yang manakah adalah yang paling sesuai untuk menjadi larutan J dan larutan K?

A Sodium nitrate and calcium chloride

Natrium nitrat dan kalsium klorida

B Sodium sulphate and lead (II) nitrate

Natrium sulfat dan plumbum(II) nitrat

C Sodium chloride and aluminium nitrate

Natrium klorida dan aluminium nitrat

D Sodium carbonate and potassium nitrate

Natrium karbonat dan kalium nitrat

21

33. When liquid W is refluxed with propanoic acid and a few drops of concentrated sulphuric

acid, a sweet smelling liquid is formed. Liquid W may be

Apabila cecair W direfluks dengan asid propanoik dan beberapa titis asid sulfurik pekat, cecair

berbau wangi terhasil. Cecair W mungkin

A propanol

propanol

B ethanoic acid

asid etanoik

C hexane

heksana

D ethyl propanoate

etil propanoat

34 Diagram 9 is an Energy Profile Diagram.

Rajah 9 adalah Rajah Profil Tenaga.

Diagram 9

Rajah 9

E

Energy Tenaga

Tenaga

Reactants Bahan

Products Hasil

22

According to Diagram 9, it can be concluded that ...

Berdasarkan rajah 9 , boleh disimpulkan bahawa...

A Heat is required to start the reaction.

Haba diperlukan untuk memulakan tindak balas.

B The activation energy for the reaction is E.

Tenaga pengaktifan ialah E.

C The reaction is endothermic.

Tindak balas berlaku ialah eksotermik.

D The reactants are higher in concentration than the products.

Kepekatan bahan tndak balas adalah lebih tinggi daripada hasil tindak balas.

35

Table 5

Jadual 5

Table 5 above shows 0.1 g of element P combines with 0.08 g of element Q to form a

compound with empirical formula PQ.

What is the relative atomic mass of element P?

Jadual 5 di atas 0.1g unsur p bergabung dengan 0.08g unsur Q untuk membentuk sebatian

dengan formula empirik PQ.

Apakah jisim atom relative bagi unsur P

[Relative atomic mass of Q= 16,

Jisim atom relatif Q = 16]

Element

unsur

P Q

Mass/g

Jisim/g

0.1 0.08

A 40

B 27

C 20

D 19

23

36 Element X has a proton number 12. Which of the following chemical formulaes of

compounds that can be formed by the element X when react with other elements.

Unsur X mempunyai nombor proton 12. Antara berikut yang manakah formula kimia sebatian

yang boleh di dihasilkan oleh unsur X apabila bertindakbalas dengan unsur lain.

Chemical formulae

Formula kimia

I XO

II XCl

III X(OH)2

IV XSO4

A I and IV

I dan IV

B II and III

II dan III

C I, III and IV

I, III dan IV

D I, II, III and IV

I, II, III dan IV

37 When hydrogen gas reacts with nitrogen gas, it will produced ammonia gas.

Apabila gas hidrogen bertindak balas dengan gas nitrogen, ia akan menghasilkan gas ammonia.

The following equation represents the reaction.

Persamaan berikut mewakili tindak balas tersebut.

What is the relative molecular mass of the product? Apakah jisim molekul relatif bagi hasil tersebut?

[ Relative atomic mass : H=1 ; N=14 ] [Jisim atom relatif : H=1 ; N=14 ]

3H2 (g) + N2 (g) → 2NH3 (g)

A 2

B 17

C 34

D 38

24

38. Table 6 shows the substances used to study the rate of reaction between marble and nitric

acid.

Jadual 6 menunjukkan bahan yang digunakan untuk mengkaji kadar tindak balas antara batu

marmar dengan asid nitrik.

Experiment Substance

Eksperimen Bahan

I

Excess marble and 50 cm3 of 0.2 mol dm

-3

hydrochloric acid

Batu marmar berlebihan dan 50 cm3 asid hidroklorik 0.2

mol dm-3

II

Excess marble and 100 cm3 of 0.1 mol dm

-3

hydrochloric acid

Batu marmar berlebihan dan 100 cm3 asid hidroklorik 0.1

mol dm-3

Table 6

Jadual 6

Which of the following statement is correct?

Antara jawapan berikut yang manakah betul?

A The rate of reaction will decrease if the acid used in experiment I is 1.0 mol dm-3

sulphuric acid, 50 cm3

Kadar tindak balas akan menurun jika asid yang digunakan dalam Eksperimen I ialah 1.0

mol dm-3 asid sulfuric, 50cm

3

B The rate of reaction will decrease if the acid used in experiment II is 100 cm3 of

0.2 mol dm-3

sulphuric acid Kadar tindak balas akan menurun jika asid yang digunakan dalam eksperimen II ialah

100cm3, 0.2 mol dm

-3 asid sulfurik

C The rate of reaction will increase if the acid in experiment II is 50cm3

of 0.2 mol

dm-3

sodium chloride Kadar tindak balas akan meningkat jika asid yang digunakan dalam eksperimen II ialah

50 cm3, 0.2 mol dm

-3 natrium klorida

D The rate of reaction will same if the acid is 100 cm3 of 0.1 mol dm

-3 nitric acid in

experiment I Kadar tindak balas akan sama jika asid yang digunakan dalam eksperimen II ialah

100cm3, 0.2 mol dm

-3 asid nitric

25

39 The nucleon number of X is 40 and X2+

ion has 18 electrons. What is the number of

neutrons of X2+

ion?

Nombor nukleon X ialah 40 dan ion X2+

mempunyai 18 elektron. Berapakah bilangan neutron

bagi ion X2+

?

A 18

B 20

C 22

D 40

40 Table 7 shows the result of tests performed on a compound Y.

Jadual 7 menunjukkan keputusan ujian ke atas satu sebatian Y

Test

Ujian

Observation

Pemerhatian

Add dilute hydrochloric acid solution

Tambah larutan asid hidroklorik cair

White precipitate formed

Mendakan putih terbentuk

Add barium nitrate solution

Tambah larutan barium nitrat

White precipitate formed

Mendakan putih terbentuk

Table 7

Jadual 7

What is compound Y?

Apakah sebatian Y ?

A Zinc sulphate

Zink sulfat

B Lead (II) nitrat

Plumbum (II) nitrat

C Silver sulphate

Argentum sulfat

D Magnesium chloride

Magnesium klorida

26

41 A dibase acid, H2V has the concentration of 0.5 moldm-3

. Letter V is not the actual

symbol of the element. What is the volume of potassium hydroxide, KOH 1.0 moldm-3

that can be neutralize 25.0 cm3 of the H2V acid solution?

Satu asid dwibes, H2V mempunyai kepekatan 0.5 moldm-3

. Huruf V bukan simbol sebenar unsur

itu. Berapakah isi padu kalium hidroksida , KOH, 1.0 moldm-3

yang dapat meneutralkan 25.0 cm3

larutan asid H2V itu?

A 6.25 cm3

B 12.50 cm3

C 25.00 cm3

D 50.00 cm3

42

Ali and his friends conducted experiments in the school laboratory about the potential

difference between two pairs of metal. Data were recorded in the chemistry book as

below

Ali dan rakan-rakannya menjalankan eksperimen di makmal sekolah mengenai beza

keupayaan antara dua pasang logam. Data telah direkodkan dalam buku kimia seperti di

bawah.

Pair of metals Pasangan logam

Potential difference (V) Beza keupayaan

Negative terminal Terminal negatif

R and copper R dan kuprum

0.44 R

S and copper S dan kuprum

1.70 S

T and copper T dan kuprum

0.53 Cu

What is the potential difference for the pair of metal S and T?

Apakah beza keupayaan untuk pasangan logam S dan T?

A 0.97 V

B 2.14 V

C 2.23 V

D 2.67 V

27

43. Diagram 10 shows a structural formula of a chemical Z

Rajah 10 menunjukkan formula struktur bagi bahan kimia Z

H O H

H H

H

C

C

O

C

C

C

H

H

H

H H

Diagram 10

Rajah 10

What are the structural formula of chemical A and chemical B used to prepare the

chemical Z?

Apakah formula struktur bahan kimia A dan bahan kimia B yang digunakan untuk

menyediakan bahan kimia Z?

Chemical A

Bahan Kimia A

Chemical B

Bahan Kimia B

Name of chemical Z

Nama bahan kimia Z

A CH3CH2OH CH3COOH Ethyl ethanoate

Etil etanoat

B CH3CH2CH2OH CH3COOH Proyl ethanoate

Propil etanoat

C CH3CH2 CH2OH CH3CH2COOH Propyl propanoate

Propil etanoat

D

CH3CH2 OH CH3CH2COOH

Ethyl propanoate

Etil propanoat

28

44 1.0 mol dm-3

sodium hydroxide solution reacts completely with hydrochloric

acid to produce 1.17 g of salt. What is the volume of alkali needed?

[Relative atomic mass : Na = 23, Cl = 35.5, H = 1, O = 16]

Larutan natrium hidroksida 1.0 mol dm-3

bertindak balas lengkap dengan asid hidroklorik

untuk menghasilkan garam 1.17 g . Berapakah isi padu alkali yang diperlukan?

[Jisim atom relatif : Na = 23, Cl = 35.5, H = 1, O = 16]

A 0.004 cm3

B 0.02 cm3

C 4.00 cm3

D 20.00 cm3

45 Which of the following acids will produce a highest initial rate of reaction when 1.0 g of

calcium carbonate is added to it?

Antara yang berikut, manakah asid yang akan menghasilkan kadar tindak balas awal yang paling

tinggi apabila 1.0g kalsium karbonat ditambah kepada asid tersebut?

A 50.0 cm3 of 1.0 mol dm

-3 nitric acid

50.0 cm3 asid nitrik 1.0 mol dm

-3

B 50.0 cm3 of 1.0 mol dm

-3 sulphuric acid

50.0 cm3 asid sulfurik 1.0 mol dm

-3

C 50.0 cm3 of 1.0 mol dm

-3 ethanoic acid

50.0 cm3 asid ethanoik 1.0 mol dm

-3

D 100 cm3 of 1.0 mol dm

-3 hydrochloric acid

50.0 cm3 asid hydrochlorik 1.0 mol dm

-3

29

46 The following information shows the results of an experiment to determine the heat

change for the combustion of ethanol, C2H5OH.

Maklumat berikut menunjukkan keputusan satu eksperimen untuk menentukan perubahan haba

bagi pembakaran etanol, C2H5OH.

Volume of water heated in the container = 250 cm3

lsi padu air yang dipanaskan di dalam bekas = 250 cm3

Initial temperature of water = 28.5°C

Suhu awal air = 28.5°C

Highest temperature of water = 66.5°C

Suhu tertinggi air = 66.5°C

How much heat is released by the combustion of ethanol?

[Specific heat capacity of solution = 4.2 Jg-1

°C-1

, Density of water = 1.0 gcm-3

]

Berapakah haba yang dibebaskan oleh pembakaran etanol?

[Muatan haba tentu lanutan = 4.2 J g-1

°C-1

; Ketumpatan air = 1.0 g cm -3

]

A 29.9 kJ

B 39.9 kJ

C 49.9 kJ

D 69.8 kJ

30

47 Diagram 11 shows an energy level diagram for neutralisation process.

Rajah 11 menunjukkan gambar rajah aras tenaga bagi proses peneutralan.

Diagram 11

Rajah 11

Based on Diagram 11, it can be concluded that

Berdasarkan Rajah 11, dapat disimpulkan bahawa

I 57 kJ of energy is needed for the reaction 57 kJ tenaga diperlukan untuk tindak balas

II the heat of neutralization is - 57 kJ mol-1

haba peneutralan adalah - 57 kJ mol-1

III temperature drops when reaction takes place. suhu jatuh semasa tindak balas berlaku.

IV the products of reaction contain less energy than the reactants hasil tindak balas mengandungi tenaga kurang daripada bahan tindak balas

A I and III only

I dan III sahaja

B II and III only

II dan III sahaja

C I and IV only

I dan IV sahaja

D II and IV only

II dan IV sahaja

31

48 The diagram 12 shows the apparatus set-up of an experiment to study redox reaction. After

30 minutes, the colourless solution around electrode X and Y change in colour.

Rajah 12 menunjukkan susunan radas untuk mengkaji tindakbalas redoks. Selepas 30 minit,

larutan di sekitar elektrod X berubah warna begitu juga dengan larutan di sekitar elektrod Y.

Diagram 12

Rajah 12

Which of the following combination explains the observation and changes happened around

electrode X and Y of the experiment?

Yang manakah antara kombinasi berikut menerangkan pemerhatian dan perubahan yang

berlaku di sekitar elektrod X dan Y eksperimen ini?

32

Explanation

Keterangan

Colour change around

electrode X

Perubahan warna di

sekitar elektod X

Colour change around electrode Y

Perubahan warna di sekitar elektod Y

A Iodide ions are

oxidized to iodine

molecules.

ion iodida teroksida

kepada iodin

molekul.

Colourless to brown

Tidak berwarna kepada

perang

Orange to green

Jingga kepada hijau

B Oxidation number

of iodine increases

from 0 to +1.

Nombor

pengoksidaan iodin

meningkat dari 0 ke

+1.

Orange to green

Jingga kepada hijau

Colourless to brown

Tidak berwarna kepada perang

C Electron flows

from electrode Y

to electrode X

through the

external circuit

Elektron mengalir

dari elektrod Y ke

elektrod X melalui

litar terluar

Orange to green

Jingga kepada hijau

Colourless to brown

Tidak berwarna kepada perang

D

Oxidation number

of chromium

decreases from +6

to +2 Nombor

pengoksidaan

kromium menurun

+6 ke +2

Colourless to brown

Tidak berwarna kepada

perang

Orange to green

Jingga kepada hijau

33

49 The equation below shows the heat of reaction between zinc and copper(II) sulphate

solution.

Persamaan di bawah menunjukkan haba tindak balas antara zink dengan larutan kuprum(II)

sulfat.

Zn(s) + CuSO4(aq) ZnSO4(aq) + Cu(s) H= -210 kJ mol-1

The initial temperature of the copper(II) sulphate solution is 30.0 o C, what is the final

temperature of the solution if excess powdered zinc is added into 50.0cm3 of 0.5 mol dm

-3

copper(II) sulphate solution?

[ specific heat capacity of solution = 4.2 Jg-1 o

C-1

]

Suhu awal larutan kuprum(II) sulfat ialah 30.0oC, berapakah suhu akhir larutan jika serbuk zink

berlebihan ditambahkan kepada 50.0cm3 larutan kuprum(II) sulfat 0.5 mol dm

-3?

[haba muatan larutan =4.2 Jg-1 o

C-1

]

A 12.5 0 C

B 25.0 0 C

C 55.0 0 C

D 80.0 0 C

50 Which of the following is true about the soap and the detergent?

Antara yang berikut, manakah benar tentang sabun dan detergen?

Soap

Sabun

Detergent

Detergen

A Do not form scum with Mg2+

ion.

Tidak membentuk kekat dengan ion Mg2+.

Form scum with Mg2+

ion.

Membentuk kekat dengan ion Mg2+

.

B Cause pollution.

Menyebabkan pencemaran

Do not cause pollution.

Tidak menyebabkan pencemaran.

C Effective in hard water.

Berkesan dalam air liat.

Effective in soft water.

Berkesan dalam air lembut

D Not effective in acidic water.

Berkesan dalam air berasid

Effective in hard water.

Berkesan dalam air liat

END OF QUESTIONS PAPER KERTAS SOAAN TAMAT