Sbp 2013

SULIT 4541/1
Kimia
Kertas 1
Ogos
2013
1 ¼ jam
Kertas ini mengandungi 27 halaman bercetak
4541/1 © 2013 Hak Cipta BPSBPSK [Lihat Halaman Sebelah
SULIT
BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH
DAN SEKOLAH KECEMERLANGAN
KEMENTERIAN PELAJARAN MALAYSIA
PENTAKSIRAN DIAGNOSTIK AKADEMIK SBP 2013
SIJIL PELAJARAN MALAYSIA
KIMIA
Kertas 1
1 jam 15 minit
JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU
Arahan:
1. Kertas ini mengandungi 50 soalan.
2. Jawab semua soalan.
3. Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.
4. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan.
5. Tiap-tiap soalan diikuti oleh empat pilihan jawapan A , B , C dan D .
Pilih satu jawapan yang terbaik bagi setiap soalan dan hitamkan ruangan yang sepadan
pada kertas jawapan objektif anda. http://www.chngtuition.blogspot.com
KEMENTERIAN PENDIDIKAN MALAYSIA

SULIT 2 4541/1
4541/1 © 2013 Hak Cipta BPSBPSK SULIT
1
Sublimation is a process when the solid change to gas.
Which substance undergoes sublimation?
Pemejalwapan adalah satu proses apabila pepejal bertukar kepada gas.
Bahan manakah mengalami pemejalwapan?
A
Iodine
Iodin
B
Carbon
Karbon
C
Sulphur
Sulfur
D
Bromine
Bromin
2
Which substance contains 6.02 x 1023 atoms?
Bahan manakah mengandungi 6.02x1023 atom?
A
1.0 mol of carbon dioxide gas
1.0 mol gas karbon dioksida
B
1.0 mol of hydrogen gas
1.0 mol gas hidrogen
C
1.0 mol of oxygen gas
1.0 mol gas oksigen
D
1.0 mol of helium gas
1.0 mol gas helium
3
Which elements are located in Group 1 in the Periodic Table of Elements?
Unsur-unsur manakah terletak dalam Kumpulan 1 dalam Jadual Berkala Unsur?
A
Sodium and caesium
Natrium dan sesium
B
Lithium and barium
Litium dan barium
C
Potassium and calcium
Kalium dan kalsium
D
Magnesium and sodium
Magnesium dan natrium
http://www.chngtuition.blogspot.com

SULIT 3 4541/1
4
Which substance is an ionic compound?
Bahan manakah adalah sebatian ion?
A
Ethanol
Etanol
B
Ammonia
Ammonia
C
Sodium oxide
Natrium oksida
D
Sulphur dioxide
Sulfur dioksida
5
Diagram 1 shows the set-up of apparatus of a chemical cell.
Rajah 1 menunjukkan susunan radas bagi satu sel kimia.
Diagram 1
Rajah 1
Electrode Y is the negative terminal of the cell.
What is Y?
Elektrod Y adalah negatif terminal bagi sel itu.
Apakah Y?
A
Iron
Ferum
B
Lead
Plumbum
C
Copper
Kuprum
D
Aluminium
Aluminium
Y electrode
Elektrod Y
Zinc electrode
Elektrod zink
Electrolyte
Elektrolit

SULIT 4 4541/1
6
Which of the following is a diprotic acid?
Antara berikut yang manakah asid diprotik?
A
Nitric acid
Asid nitrik
B
Ethanoic acid
Asid etanoik
C
Sulphuric acid
Asid sulfurik
D
Hydrochloric acid
Asid hidroklorik
7
Which salt is insoluble in water?
Garam manakah tidak larut dalam air?
A
Lead(II) nitrate
Plumbum(II) nitrat
B
Iron(II) chloride
Ferum(II) klorida
C
Barium sulphate
Barium sulfat
D
Sodium carbonate
Natrium karbonat
8
Trophy and medal are normally made up of bronze.
What is the composition of bronze?
Piala dan pingat biasanya diperbuat daripada gangsa.
Apakah komposisi gangsa?
A
Copper and tin
Kuprum dan stanum
B
Copper and zinc
Kuprum dan zink
C
Tin, copper and antimony
Stanum, kuprum dan antimony
D
Iron, carbon and chromium
Ferum, karbon dan kromium

SULIT 5 4541/1
9
Which reaction has the lowest rate of reaction?
Tindak balas manakah mempunyai kadar paling rendah?
A
Precipitation of salt
Pemendakan garam
B
Combustion of alcohol
Pembakaran alkohol
C
Fermentation of glucose
Penapaian glukosa
D
Neutralisation of acid and alkali
Peneutralan asid dan alkali
10
Diagram 2 shows the particles arrangement for the change of state of matter.
Rajah 2 menunjukkan susunan zarah bagi pertukaran keadaan jirim.
Diagram 2
Rajah 2
Which of the following is process X?
Antara berikut yang manakah adalah proses X?
A
Condensation
Kondensasi
B
Evaporation
Penyejatan
C
Sublimation
Pemejalwapan
D
Freezing
Pembekuan
Process X
Proses X

SULIT 6 4541/1
11
Which statement is incorrect about unsaturated hydrocarbons?
Pernyataan manakah yang tidak betul mengenai hidrokarbon tak tepu?
A
Soluble in water
Larut dalam air
B
Cannot conduct electricity at any state
Tidak mengkonduksi elektrik dalam sebarang keadaan
C
Contain only carbon and hydrogen atoms
Mengandungi hanya atom karbon dan atom hidrogen
D
Contain at least one double bond between carbon atoms
Mengandungi sekurang-kurangnya satu ikatan ganda dua antara atom-atom karbon
12
Which statement defines oxidation?
Pernyataan manakah mendefinisikan pengoksidaan?
A
Increase in oxidation number Penambahan nombor pengoksidaan
B
Gain of hydrogen Penerimaan hydrogen
C
Loss of oxygen Kehilangan oksigen
D
Gain of electron Penerimaan electron
13
The reaction between silver nitrate solution and hydrochloric acid is an exothermic reaction.
Which statement is correct about the reaction?
Tindak balas antara larutan argentum nitrat dengan asid hidroklorik adalah tindak balas eksotermik.
Pernyataan manakah betul tentang tindak balas itu?
A
Heat is absorbed from surroundings
Haba diserap daripada persekitaran
B
The products formed are more stable than reactants
Hasil tindak balas lebih stabil daripada bahan tindak balas
C
The surroundings temperature increases during the reaction
Suhu persekitaran meningkat semasa tindak balas
D
The energy content of reactants is lower than the energy content of products
Kandungan tenaga bahan tindak balas lebih rendah daripada kandungan tenaga hasil indak balas

SULIT 7 4541/1
14
Diagram 3 shows a decorative glass which is used in the house. The glass has the following properties.
Rajah 3 menunjukkan satu kaca perhiasan yang digunakan di rumah. Kaca itu mempunyai ciri-ciri berikut.
Diagram 3
Rajah 3
Which of the following glass has the above properties?
Kaca manakah mempunyai ciri-ciri seperti di atas?
A
Fused glass
Kaca silika terlakur
B
Soda-lime glass
Kaca soda kapur
C
Borosilicate glass
Kaca borosilikat
D
Lead crystal glass
Kaca plumbum Kristal
15
What is the function of aspartame? Apakah fungsi aspartam?
A
Stabiliser Penstabil
B
Flavouring Perisa
C
Preservative Pengawet
D
Antioxidant Antipengoksida
High refractive index
Indeks biasan yang tinggi
High density Ketumpatan yang tinggi
Optically transparent
Lutsinar secara optik

SULIT 8 4541/1
16
Diagram 4 shows the set-up of apparatus for an experiment to determine the empirical formula of magnesium oxide.
Rajah 4 menunjukkan susunan radas bagi satu eksperiment untuk menentukan formula empirik magnesium oksida.
Panaskan
Diagram 4
Rajah 4
The lid of crucible must be lifted at intervals during the heating process.
What is the reason for this action?
Penutup mangkuk pijar perlu diangkat sekali sekala semasa proses pemanasan.
Apakah sebab tindakan ini diambil?
A
To get the accurate mass of magnesium oxide
Untuk mendapatkan jisim yang tepat bagi magnesium oksida
B
To allow oxygen enter into the crucible and react with magnesium
Untuk membenarkan oksigen masuk ke dalam mangkuk pijar dan bertindak balas dengan magnesium
C
To ensure the complete reaction of magnesium to form magnesium oxide
Untuk memastikan tindak balas lengkap magnesium untuk membentuk magnesium oksida
D
To release the white fumes that produce from combustion to the surroundings
Untuk membebaskan wasap putih yang terhasil daripada pembakaran ke persekitaran
Heat
Magnesium ribbon
Pita magnesium
Tripod stand
Tungku kaki tiga
Pipe clay triangle
Segitiga tanah liat
Tongs to remove lid
Penyepit untuk mengangkat penutup

SULIT 9 4541/1
17
Which isotope is used in radiotherapy for the treatment of cancer?
Isotop manakah digunakan dalam radioterapi untuk mengubati penyakit kanser?
A
Cobalt-60
Kobalt-60
B
Sodium-24
Natrium-24
C
Carbon-14
Karbon-14
D
Phosphorus-32
Fosforus-32
18
Element M forms two different chlorides, MCl2 and MCl3.
What is M ?
Unsur M membentuk dua jenis klorida, MCl2 dan MCl3 .
Apakah M?
A
Iron
Ferum
B
Zinc
Zink
C
Copper
Kuprum
D
Lead
Plumbum
19
Which substance is an electrolyte?
Bahan manakah adalah elektrolit?
A
Glucose
Glukosa
B
Naphthalene
Naftalena
C
Ethanoic acid
Asid etanoik
D
Ethyl ethanoate
Etil etanoat

SULIT 10 4541/1
20
Diagram 5 shows the set-up of apparatus to investigate the electrical conductivity of substance P.
Rajah 5 menunjukkan susunan radas untuk mengkaji kekonduksian elektrik bagi bahan P.
Diagram 5
Rajah 5
Substance P lights up the bulb because
Bahan P menyalakan mentol kerana
A
soluble in water.
larut dalam air.
B
has high melting point.
mempunyai takat lebur yang tinggi.
C
has free moving ions.
mengandungi ion-ion yang bebas bergerak.
D
has strong electrostatic forces between ions.
mempunyai daya elektrostatik yang kuat antara ion-ion.
21
Which of the following is correct about weak alkalis?
Antara berikut yang manakah betul mengenai alkali lemah?
A
Unable to neutralise acid
Tidak boleh meneutralkan asid
B
The pH value is less than 7
Nilai pH kurang daripada 7
C
Able to change blue litmus paper to red
Boleh menukarkan kertas litmus biru ke merah
D
Ionise partially in water to produce hydroxide ion
Mengion separa dalam air untuk menghasilkan ion hidroksida
P

SULIT 11 4541/1
22
Which reactants are suitable to prepare copper(II) sulphate?
Bahan manakah sesuai untuk menyediakan kuprum(II) sulfat?
A
Copper and sulphuric acid
Kuprum dan asid sulfurik
B
Copper(II) carbonate and sulphuric acid
Kuprum(II) karbonat dan asid sulfurik
C
Copper(II) oxide and sodium sulphate
Kuprum(II) oksida dan natrium sulfat
D
Copper(II) nitrate and sodium sulphate
Kuprum(II) nitrat dan natrium sulfat
23
A substance has the following properties:
Satu bahan mempunyai ciri-ciri berikut:
● Hard and opaque
Keras dan legap
● Inert towards chemicals
Lengai terhadap bahan kimia
● Good insulator of heat and electricity
Penebat haba dan elektrik yang baik
Which substance has the above properties?
Bahan manakah mempunyai ciri-ciri di atas?
A
Ceramic
Seramik
B
Polymer
Polimer
C
Metal
Logam
D
Glass
Kaca

SULIT 12 4541/1
24
The higher the concentration of reactant, the higher the rate of reaction.
Which statement explains why the rate of reaction increases?
Apabila kepekatan bahan tindak balas meningkat, kadar tindak balas meningkat.
Pernyataan manakah menerangkan mengapa kadar tindak balas meningkat?
A
Kinetic energy of the particles increases
Tenaga kinetik zarah-zarah bertambah
B
The total surface area of the particles increases
Jumlah luas permukaan zarah-zarah bertambah
C
The number of particles per unit volume increases
Bilangan zarah-zarah per unit isi padu bertambah
D
More particles are able to achieve lower activation energy
Lebih banyak zarah-zarah berupaya untuk mencapai tenaga pengaktifan yang lebih rendah
25
Diagram 6 shows the structural formula of substance X.
Rajah 6 menunjukkan formula struktur bagi bahan X.
Diagram 6
Rajah 6
Which of the following are properties of substance X?
Antara berikut yang manakah sifat-sifat bahan X?
I
Reacts with copper to produce hydrogen gas
Bertindak balas dengan kuprum menghasilkan gas hidrogen
II
Colourless liquid at room temperature
Cecair tidak berwarna pada suhu bilik
III
Reacts with alcohol to form an ester
Bertindak balas dengan alkohol menghasilkan sejenis ester
IV
Does not dissolve in water
Tidak larut di dalam air
A
I and II
I dan II
B
I and IV
I dan IV
C
II and III
II dan III
D
III and IV
III dan IV

SULIT 13 4541/1
26
Which substance accepts electron?
Bahan manakah menerima elektron?
A
Dehydrating agent
Agen pengontangan
B
Emulsifying agent
Agen pengemulsian
C
Oxidising agent
Agen pengoksidaan
D
Reducing agent
Agen penurunan
27
The thermochemical equation represents the neutralisation between hydrochloric acid, HCl and sodium hydroxide, NaOH solution.
Persamaan termokimia mewakili tindak balas peneutralan antara asid hidroklorik, HCl dan larutan natrium hidroksida, NaOH.
HCl + NaOH NaCl + H2O H = -57 kJ mol-1
Which substance is suitable to replace hydrochloric acid to obtain the same H value?
Bahan manakah yang sesuai menggantikan asid hidroklorik untuk memperoleh nilai H yang sama?
A
Nitric acid
Asid nitric
B
Ethanoic acid
Asid etanoik
C
Carbonic acid
Asid karbonik
D
Phosphoric acid
Asid fosforik

SULIT 14 4541/1
28
Diagram 7 shows the elements in Period 3 of the Periodic Table of the Elements.
Rajah 7 menunjukkan unsur-unsur dalam Kala 3 Jadual Berkala Unsur.
Na
Mg
Al
Si
P
S
Cl
Ar
Diagram 7
Rajah 7
Which of the following statement is correct?
Antara pernyataan berikut yang manakah betul?
A
Argon is denser than magnesium
Argon lebih tumpat daripada magnesium
B
Chlorine is more electronegative than sulphur
Klorin lebih elektronegatif daripada sulfur
C
Sodium has smaller atomic size than aluminium
Natrium mempunyai saiz atom lebih kecil daripada aluminium
D
Magnesium has lower melting point than phosphorus
Magnesium mempunyai takat lebur lebih rendah daripada fosforus
29
Which equations represent a neutralisation reaction?
Persamaan manakah mewakili tindak balas peneutralan?
I
MgO + 2HCl MgCl2 + H2O
II
CH3COOH + KOH CH3COOK + H2O
III
Mg + 2AgNO3 Mg(NO3)2 + 2Ag
IV
BaCl2 + H2SO4 BaSO4 + 2HCl
A
I and II
I dan II
B
II and III
II dan III
C
I and IV
I dan IV
D
III and IV
III dan IV

SULIT 15 4541/1
30 Diagram 8 shows a cut apple turns brown after 20 minutes.
Rajah 8 menunjukkan sepotong epal yang bertukar perang selepas 20 minit.
Diagram 8
Rajah 8
Which of the following is the reason why the cut apple turns brown and the type of
food additive used to prevent it?
Antara berikut yang manakah sebab mengapa epal yang dipotong itu bertukar
perang dan jenis bahan tambah makanan yang digunakan untuk mengelakkannya?
Reason
Sebab
Food additive
Bahan tambah makanan
A The growth of microorganisms
Pembiakan mikroorganisma
Preservative
Pengawet
B Oxidation occur
Pengoksidaan berlaku
Antioxidant
Antipengoksida
C Concentration of salt is high
Kepekatan garam adalah tinggi
Flavouring
Perisa
D Azo compound presents in the apple
Sebatian azo wujud dalam epal
Colouring
Pewarna
31 A woman is always sad and anxious.
Which medicine is suitable to treat this patient?
Seorang wanita selalu sedih dan gelisah.
Ubat manakah paling sesuai untuk mengubati pesakit itu?
A Chlorpromazine
Klorpromazin
B Tranquilizer
Trankuilizer
C Penicillin
Penisilin
D Aspirin
Aspirin
Brown colour
Warna perang
perang

SULIT 16 4541/1
32 Diagram 9 shows the the electron arrangement of a compound formed between carbon, C and
element Y. The letter Y is not the actual symbol of the element.
Rajah 9 menunjukkan susunan elektron bagi sebatian yang terbentuk antara karbon, C dan
unsur Y. Huruf Y bukan simbol sebenar unsur itu.
Diagram 9
Rajah 9
What is the formula of the compound formed when lithium reacts with Y?
Apakah formula bagi sebatian yang terbentuk apabila litium bertindak balas dengan Y?
A LiY
B LiY2
C LiY4
D Li2Y
33 Atoms X and Y are isotopes. The nucleon number of atom Y is 37 and it has 20 neutrons.
What is the electron arrangement of atom X?
Atom X dan Y adalah isotop. Nombor nukleon atom Y adalah 37 dan ia mempunyai 20
neutron.
Apakah susunan elektron atom X?
A 2.7
B 2.8.7
C 2.8.2
D 2.8.8.2
Y x X x Y
x
x
x x
C

SULIT 17 4541/1
34
Diagram 10 shows an energy profile, X for one of the stage in the production of sulphuric acid through Contact Process.
Rajah 10 menunjukkan profil tenaga, X bagi salah satu peringkat dalam penghasilan asid sulfurik melalui Proses Sentuh.
Diagram 10
Rajah 10
What is the change needed to be done to obtain curve Y?
Apakah perubahan yang perlu dilakukan untuk mendapat lengkung Y?
A
Heat the reactants at 450oC
Panaskan bahan tindak balas pada suhu 450oC
B
Compress the reactants at 1 atm
Mampatkan bahan tindak balas pada tekanan 1 atm
C
Increase the concentration of reactants
Tingkatkan kepekatan bahan tindak balas
D
Heat the reactants with the presence of vanadium(V) oxide
Panaskan bahan tindak balas dengan kehadiran vanadium(V) oksida
Y
X
2SO2 + O2
2SO3
Energy
Tenaga

SULIT 18 4541/1
35
Diagram 11 shows the apparatus set-up for the electrolysis of sodium nitrate solution, NaNO3 using carbon electrodes.
Rajah 11 menunjukkan susunan radas bagi elektrolisis larutan natrium nitrat, NaNO3 menggunakan elektrod-elektrod karbon.
Diagram 11
Rajah 11
What are the products at electrodes X and Y?
Apakah hasil tindak balas pada elektrod X dan Y?
X
Y
A
Oxygen gas
Gas oksigen
Sodium
Natrium
B
Hydrogen gas
Gas hidrogen
Oxygen gas
Gas oksigen
C
Nitrogen gas
Gas nitrogen
Sodium
Natrium
D
Oxygen gas
Gas oksigen
Hydrogen gas
Gas hidrogen
36
Copper(II) sulphate solution is electrolysed using carbon electrodes.
Which half-equations represent the reactions at the anode and the cathode?
Larutan kuprum(II) sulfat dielektrolisiskan menggunakan elektrod-elektrod karbon.
Setengah persamaan manakah mewakili tindak balas di anod dan di katod?
Anode
Anod
Cathode
Katod
A
Cu2+ + 2e Cu
4OH 2H2O + O2 + 4e
B
4OH 2H2O + O2 + 4e
2H+ + 2e H2
C
4OH 2H2O + O2 + 4e
Cu2+ + 2e Cu
D
2H+ + 2e H2
4OH 2H2O + O2 + 4e
Electrode Y
Elektrod Y
Electrode X
Elektrod X
Sodium nitrate solution
Larutan natrium nitrat
larutan natrium nitrat http://www.chngtuition.blogspot.com

SULIT 19 4541/1
37
Diagram12 shows the set-up of apparatus for the decomposition of compound Q.
Rajah 12 menunjukkan susunan radas bagi penguraian sebatian Q.
Diagram 12
Rajah 12
When Q is heated, the lime water turns milky.
What is compound Q?
Apabila Q dipanaskan, air kapur bertukar keruh.
Apakah sebatian Q?
A
Ammonium carbonate
Ammonium karbonat
B
Potassium carbonate
Kalium karbonat
C
Sodium carbonate
Natrium karbonat
D
Zinc carbonate
Zink karbonat
38
A farmer discovered that his plants were not growing well because the soil was acidic.
Which substance is used to overcome the problem?
Seorang petani mendapati tanamannya tidak tumbuh dengan subur kerana tanahnya berasid.
Bahan manakah digunakan untuk mengatasi masalah tersebut?
A
Zinc oxide
Zink oksida
B
Calcium oxide
Kalsium oksida
C
Potassium hydroxide
Kalium hidroksida
D
Magnesium hydroxide
Magnesium hidroksida
Lime water
Air kapur
Heat
Panaskan
Q

SULIT 20 4541/1
39
Diagram 13 shows curve I in a graph of volume of gas released against time for the reaction between excess zinc powder and 100 cm3 of 1.0 mol dm-3 hydrochloric acid, HCl.
Which of the following conditions represents curve II?
Rajah 13 menunjukkan lengkung I dalam graf isi padu gas terbebas melawan masa bagi tindak balas antara serbuk zink berlebihan dengan 100 cm3 asid hidroklorik, HCl 1.0 mol dm-3.
Antara berikut keadaan manakah mewakili lengkung II?
Diagram 13
Rajah 13
Concentration of HCl (mol dm-3)
Kepekatan HCl ( mol dm-3)
Volume of HCl (cm3)
Isi padu HCl (cm3)
A
0.5
100
B
1.0
50
C
2.0
50
D
2.0
25
Volume of gas (cm3)
Isi padu gas (cm3)
Time (s)
Masa (s)
I
II

SULIT 21 4541/1
40
Which of the following shows the structural formula for 2-methylbut-2-ene.
Antara berikut yang manakah menunjukkan formula struktur bagi 2-metilbut-2-ena.
A
B
C
D

SULIT 22 4541/1
41
Diagram 14 shows two experiments to investigate the effect of metals X and Y on the rusting of iron.
Rajah 14 menunjukkan dua eksperimen untuk mengkaji kesan logam X dan Y terhadap pengaratan besi.
Experiment
Eksperimen
Observation
Pemerhatian
No change
Tiada perubahan
Blue spot formed
Tompok biru terbentuk
Diagram 14
Rajah 14
Arrange X, Y and iron in order of increasing tendency to release electrons.
Susun X, Y dan besi dalam urutan pertambahan kecenderungan melepaskan elektron.
A
Iron , X , Y
Besi , X , Y
B
X , iron , Y
X , besi , Y
C
X , Y , iron
X , Y , besi
D
Y , iron , X
Y , besi , X
Jelly solution + potassium hexacyanoferrate(III)
Larutan agar + kalium heksasianoferat(III)
air
Iron nail and metal X
Paku besi dan logam X
Jelly solution + potassium hexacyanoferrate(III)
Larutan agar + kalium heksasianoferat(III)
air
Iron nail and metal Y
Paku besi dan logam Y

SULIT 23 4541/1
42
Table 1 shows temperature change obtained for two set of experiments.
Jadual 1 menunjukkan perubahan suhu yang didapati bagi dua set eksperimen.
Set
Set
Reactants
Bahan tindak balas
Temperature change ( oC)
Perubahan suhu ( oC)
I
Magnesium powder + 25 cm3 of 0.2 mol dm-3 copper(II) sulphate solution
Serbuk magnesium + 25 cm3 larutan kuprum(II) sulfat 0.2 mol dm-3

II
Magnesium powder + 25 cm3 of copper(II) sulphate solution 0.4 mol dm-3
Serbuk magnesium + 25 cm3 larutan kuprum(II) sulfat 0.4 mol dm-3
x
Table 1
Jadual 1
What is the value of x?
Apakah nilai x?
A

B
2
C
0.5
D
0.25
43
Element X is located below potassium in the Periodic Table of Elements.
X is not the actual symbol of the element.
Which statement is correct about element X?
Unsur X berada di bawah kalium dalam Jadual Berkala Unsur.
X bukan simbol sebenar unsur itu.
Pernyataan manakah betul tentang unsur X?
A
X is less dense than potassium
X kurang tumpat daripada kalium
B
X is less reactive than potassium
X kurang reaktif daripada kalium
C
X atom is smaller than potassium atom
Atom X lebih kecil daripada atom kalium
D
X is more electropositive than potassium
X lebih elektropositif daripada kalium

SULIT 24 4541/1
44
Table 2 shows the proton number of four atoms of elements.
Jadual 2 menunjukkan nombor proton bagi empat atom unsur.
Atom
Atom
W
X
Y
Z
Proton number
Nombor proton
12
8
18
17
Table 2
Jadual 2
Which elements react to form an ionic compound?
Unsur-unsur manakah bertindak balas untuk membentuk sebatian ion?
I W and X
W dan X
II W and Z
W dan Z
III X and Y
X dan Y
IV X and Z
X dan Z
A
I and II
I dan II
B
I and III
I dan III
C
II and IV
II dan IV
D
III and IV
III dan IV
45
What is the number of atoms in 8.5 g of ammonia gas, NH3?
[Molar mass of NH3 = 17 ; Avogadro constant = 6.02 x 1023 mol-1]
Berapakah bilangan atom dalam 8.5 g ammonia gas, NH3?
[Jisim molar NH3 = 17 ; Pemalar Avogadro = 6.02 x 1023 mol-1]
A
0.5 x 6.02 x 1023
B
0.5 x 4 x 6.02 x 1023
C
8.5 x 6.02 x 1023
D
8.5 x 4 x 6.02 x 1023

SULIT 25 4541/1
46
The equation represents the reaction between sulphuric acid and sodium hydroxide.
Persamaan mewakili tindak balas antara asid sulfurik dan natrium hidroksida.
H2SO4 + 2NaOH K2SO4 + 2H2O
What is the volume of 1.0 mol dm-3 sodium hydroxide solution needed to neutralise
25.0 cm3 of 1.0 mol dm-3 sulphuric acid?
Berapakah isipadu larutan natrium hidroksida 1.0 mol dm-3 yang diperlukan untuk meneutralkan 25.0 cm3 asid sulfurik 1.0 mol dm-3?
A
12.5 cm3
B
25.0 cm3
C
50.0 cm3
D
75.0 cm3
47
Table 3 shows the volume of oxygen gas collected in the decomposition of hydrogen peroxide.
Jadual 3 menunjukkan isi padu gas oksigen terkumpul dalam penguraian hidrogen peroksida.
Time (s)
Masa (s)
0
30
60
90
120
150
180
210
Volume of oxygen (cm3)
Isi padu oksigen (cm3)
0.0
7.0
14.5
20.5
26.2
30.5
30.5
30.5
Table 3
Jadual 3
What is the average rate of reaction in the second minute?
Berapakah kadar tindak balas purata dalam minit ke-2?
A
0.254 cm3 s-1
B
0.218 cm3 s-1
C
0.203 cm3 s-1
D
0.195 cm3 s-1

SULIT 26 4541/1
48
Diagram 15 shows a structural formula of an ester propyl ethanoate.
Rajah 15 menunjukkan formula struktur bagi satu ester propil etanoat.
Diagram 15
Rajah 15
What are the structural formula of alcohol and carboxylic acid used to prepare the ester?
Apakah formula struktur alkohol dan asid karbosilik yang digunakan untuk menyediakan ester itu?
Alcohol
Alkohol
Carboxylic acid
Asid karbosilik
A
CH3CH2OH
CH3COOH
B
CH3CH2CH2OH
CH3COOH
C
CH3CH2 CH2OH
CH3CH2COOH
D
CH3CH2 OH
CH3CH2COOH
49
R is located between aluminium and iron in the reactivity series of metals.
Which oxide is not reduced by R?
R terletak antara magnesium dan ferum dalam siri kereaktifan logam.
Oksida manakah tidak diturunkan oleh R?
A
Copper(II) oxide
Kuprum(II) oksida
B
Magnesium oxide
Magnesium oksida
C
Silver oxide
Argentum oksida
D
Tin(II) oxide
Stanum(II) oksida
H O H H H
H C C O C C C H
H H H H

SULIT 27 4541/1
50
The thermochemical equation represents the combustion of methanol, CH3OH.
Persamaan termokimia mewakili pembakaran methanol, CH3OH.
CH3OH + 3/2 O2  CO2 + 2H2O H = -728 kJ mol-1
What is the mass of methanol needed to raise the temperature of 250 cm3 of water by 27.8C?
[Molar mass of CH3OH = 32; Specific heat capacity of water = 4.2 J g-1 C-1;
Density of water = 1 g cm-3]
Berapakah jisim metanol yang diperlukan untuk menaikkan suhu 250 cm3 air sebanyak 27.8 C?
[Jisim molar CH3OH = 32; Muatan haba tentu air =4.2 J g-1 C-1;
Ketumpatan air = 1 g cm-3]
A
2.56 g
B
1.88 g
C
1.28 g
D
0.79 g
END OF QUESTION PAPER
KERTAS SOALAN TAMAT

SULIT 4541/2
Chemistry
Kertas 2
Ogos
2013
2½ JAM
4541/2 © 2013 Hak Cipta BPSBPSK [Lihat Halaman Sebelah
SULIT
BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH
CHEMISTRY
KERTAS 2
2 JAM 30 MINIT
Arahan:
1. Tuliskan Nama dan Tingkatan pada ruang yang disediakan.
2. Jawab semua soalan daripada Bahagian A. Tuliskan jawapan anda dalam ruang yang disediakan.
3. Jawab satu soalan daripada Bahagian B dan satu soalan daripada Bahagian C
4. Anda diminta menjawab dengan lebih terperinci untuk Bahagian B dan Bahagian C. Jawapan mestilah jelas dan logik. Persamaan, gambar rajah, jadual, graf dan
cara lain yang sesuai untuk menjelaskan jawapan anda boleh digunakan.
5. Penggunaan kalkulator saintifik yang tidak boleh diprogramkan adalah dibenarkan.
Untuk Kegunaan Pemeriksa
Bahagian
Soalan
Markah
penuh
Markah
diperoleh
A
1
9
2
9
3
10
4
10
5
11
6
11
B
7
20
8
20
C
9
20
10
20
Jumlah
NAMA:……………………………………… TINGKATAN: ………………

SULIT 2 4541/2
Section A
Bahagian A
[60 marks]
[60 markah]
Answer all questions in this section
Jawab semua soalan dalam bahagian ini.
1. (a) Diagram 1 shows the set-up of the apparatus an experiment to study Process I.
Rajah 1 menunjukkan susunan radas bagi satu eksperimen bagi mengkaji Proses I.
Diagram 1.1
Rajah 1.1
(i) Name the process involved in this experiment?
Namakan proses yang terlibat?
…………………………………………………………………………..
[1 mark]
(ii) State the type of particles present in potassium manganate(VII).
Nyatakan jenis zarah dalam kalium manganat(VII).
…………………………………………………………………………..
[1 mark]
(iii) Explain the observation in this experiment based on the kinetic theory of matter.
Terangkan pemerhatian dalam eksperimen ini berdasarkan teori kinetik jirim.
…………………………………………………………………………..
………………………………………………………………………….
………………………………………………………………………….
[3 marks]
Whole agar turns purple.
Seluruh agar menjadi ungu
_ _ _ _ - - -
-
_ _ _ - - -
-
Solid agar
Agar-agar pejal
Solid potassium manganate(VII)
Pepejal kalium manganat(VII)

SULIT 3 4541/2
(b) Diagram 1.2 shows the symbols for three atoms of carbon.
Rajah 1.2 menunjukkan simbol bagi tiga atom karbon.
Atom
Atom
Proton number
Nombor proton
Nucleon number
Nombor nukleon
C 12
6 6 12
C 13
6 6 13
C 14
6 6 14
Diagram 1.2
Rajah 1.2
(i) Name one subatomic particles present in the nucleus of carbon atom.
Namakan satu zarah subatom yang terdapat dalam nukleus atom karbon.
…………………………………………………………………………..
[1 mark]
(ii) C 12
6 , C 13
6 and C 14
6 are isotopes.
What is meant by isotope?
C 12
6 , C 13
6 dan C 14
6 adalah isotop.
Apakah yang dimaksudkan dengan isotop?
…………………………………………………………………………..
[1 mark]
(iii) Determine the number of neutrons for the isotope of carbon-14, C 14
6 .
Tentukan bilangan neutron bagi isotop karbon-14, C 14
6 .
…………………………………………………………………………..
[1 mark]
(iv) State one use of carbon-14, C 14
6
Nyatakan satu kegunaan karbon-14, C 14
6 .
…………………………………………………………………………..
[1 mark]

SULIT 4 4541/2
2 Diagram 2 shows the symbol of atoms of magnesium, aluminium and chlorine.
Rajah 2 menunjukkan simbol atom-atom bagi magnesium, aluminium dan klorin.
Diagram 2
Rajah 2
(a) (i) Write the electron arrangement of magnesium atom.
Tuliskan susunan elektron bagi atom magnesium.
…………………………………………………………………………..
[1 mark]
(ii) State the position of magnesium in the Periodic Table of Elements.
Nyatakan kedudukan magnesium dalam Jadual Berkala Unsur.
………………………………………………………………………….
[1 mark]
(b) What is the physical state of chlorine at room condition?
Apakah keadaan fizik bagi klorin pada keadaan bilik?
…………………………………………………………………………………
[1 mark]
(c) Which element forms an acidic oxide?
Unsur manakah membentuk oksida yang bersifat asid?
…………………………………………………………………………………..
[1 mark]
(d) Aluminium reacts with oxygen to form aluminium oxide.
Aluminium bertindak balas dengan oksigen membentuk aluminium oksida.
(i) Write the chemical formula of aluminium oxide.
Tuliskan formula kimia bagi aluminium oksida.
…………………………………………………………………………..
[1 mark]
(ii) State the type of bond in aluminium oxide.
Nyatakan jenis ikatan di dalam aluminium oksida.
………………………………………………………………………….
[1 mark]
24
Mg
12
27
Al
13
35.5
Cl
17

SULIT 5 4541/2
(e) 2.4 g magnesium reacts with chlorine to form 9.5 g magnesium chloride.
Determine the empirical formula of magnesium chloride.
2.4 g magnesium bertindak balas dengan klorin membentuk 9.5 g magnesium klorida.
Tentukan formula empirik bagi magnesium klorida.
[Relative atomic mass : Mg = 24, Cl = 35.5]
[Jisim atom relatif : Mg = 24, Cl = 35.5]
[3 marks]
3 Diagram 3 shows the series of reactions that involve copper(II) nitrate.
Rajah 3 menunjukkan siri tindak balas yang melibatkan kuprum(II) nitrat.
Diagram 3
Rajah 3
Reaction I
Tindak balas I
Heat
Panaskan
Solution R
Larutan R
Copper(II) nitrate
Kuprum(II) nitrat
Solid X
Pepejal X
ColourlessGas Y
Gas Y yang tidak berwarna
Brown Gas Z
Gas Z yang berwarna perang
+ Hydrochloric acid
Asid hidroklorik
Reaction II
Tindak balas II
+
+

SULIT 6 4541/2
(a) Copper(II) nitrate is a salt.
Kuprum(II) nitrat adalah sejenis garam.
(i) State the meaning of salt.
Nyatakan maksud garam.
……………………………………..…………………………………………..
[1 mark]
(ii) State the colour of copper(II) nitrate.
Nyatakan warna kuprum(II) nitrat.
…………………………………………………………………………………
[1 mark]
(b) In Reaction I, copper(II) nitrate is heated strongly to form solid X, gas Y and gas Z.
Dalam tindak balas I, kuprum(II) nitrat dipanaskan dengan kuat untuk menghasilkan pepejal X, gas Y dan gas Z.
(i) Name gas Y.
Namakan gas Y.
.……………………………………………………………………...................
[1 marks]
(ii) Write the chemical formula of gas Z.
Tuliskan formula kimia bagi gas Z.
………………………………………………………………………................
[1 mark]
(iii) Write the chemical formula of solid X.
Tuliskan formula kimia bagi pepejal X.
………………………………………………………………………................
[1 mark]

SULIT 7 4541/2
(c) In Reaction II, solid X is added into a test tube containing hydrochloric acid to form solution R.
Dalam Tindak balas II, pepejal X ditambah ke dalam sebuah tabung uji yang mengandungi asid hidroklorik untuk membentuk larutan R.
The equation represents the reaction.
Persamaan mewakili tindak balas itu.
X + 2HCl  R + H2O
(i) Name the cation in solution R.
Namakan kation dalam larutan R.
…………………………………………………………………………………
[1 mark]
(ii) State another substance that can be used to replace solid X to produce solution R.
Nyatakan bahan lain yang boleh digunakan untk menggantikan pepejal X untuk menghasilkan larutan R.
…………………………………………………………………………………
[1 mark]
(iii) 20 cm3 of 0.5 mol dm-3 hydrochloric acid reacts with excess solid X.
Calculate the number of molecules of water produced.
[ Avogadro constant = 6.02 x 1023 mol-1]
20 cm3 asid hidroklorik 0.5 mol dm-3 bertindak balas dengan pepejal X berlebihan.
Hitung bilangan molekul air yang terbentuk.
[Pemalar Avogadro = 6.02 x 1023 mol-1]
[3 marks]

SULIT 8 4541/2
4 Diagram 4 shows the apparatus set-up for an experiment to determine the heat of
displacement.
Rajah 4 menunjukkan susunan radas bagi satu eksperimen untuk menentukan haba penyesaran.
Diagram 4
Rajah 4
Based on the experiment,
(a) State the meaning of heat of displacement.
Nyatakan maksud haba penyesaran.
…………………………………………………………………………………..
……..……………………………………………………………………………
[1 mark]
(b) Give one reason why polystyrene cup is used in the experiment.
Berikan satu sebab mengapa cawan polistirena digunakan dalam eksperimen ini.
…………………………………………………………………………………
[1 mark]
50 cm3 of 0.2 mol dm-3copper (II) sulphate
50 cm3kuprum(II) sulfat 0.2 mol dm-3
Excess zinc powder
Serbuk zink berlebihan
Polystyrene cup
Cawan polistirena

SULIT 9 4541/2
(c) The thermochemical equation below represents the displacement reaction.
Persamaan termokimia di bawah mewakili tindak balas penyesaran itu.
Zn + CuSO4 ZnSO4 + Cu H = 210 kJ mol-1
Calculate:
Hitung:
(i) the number of moles of copper(II) ion.
bilangan mol ion kuprum.
[1 mark]
(ii) the heat released during the reaction.
haba yang dibebaskan semasa tindak balas.
[2 marks]
(iii) the change of temperature in the experiment.
[Specific heat capacity of solution = 4.2 J g-1 oC-1;
Density of solution = 1 g cm-3]
perubahan suhu dalam eksperimen ini.
[Muatan haba tentu larutan = 4.2 J g-1 oC-1;
Ketumpatan larutan =1 g cm-3]
[1 mark]

SULIT 10 4541/2
(d) The experiment is repeated using magnesium powder to replace zinc powder. The volume and concentration of copper (II) sulphate used is remained the same.
Eksperimen diulang dengan menggunakan serbuk magnesium menggantikan serbuk zink. Isi padu dan larutan kuprum(II) sulfat yang digunakan adalah sama.
(i) Predict the heat of displacement for the reaction.
Ramalkan haba penyesaran bagi tindak balas itu.
..…………………………………………………………………………
[1 mark]
(ii) Give a reason for your answer in 4(d)(i).
Beri sebab bagi jawapan di 4(d(i).
…………………………………………………………………………
………………………………………………………………………….
[1 mark]
(e) Draw the energy level diagram for the reaction.
Lukis gambar rajah aras tenaga bagi tindak balas ini.
[2 marks] http://www.chngtuition.blogspot.com

SULIT 11 4541/2
5 Diagram 5.1 and Diagram 5.2 shows the apparatus set-up to investigate the factor that affects the rate of reaction.
Rajah 5.1 dan 5.2 menunjukkan susunan radas bagi mengkaji faktor yang mempengaruhi kadar tindak balas.
Diagram 5.1
Rajah 5.1
Table 5.1 shows the result obtained for Experiment I.
Jadual 5.1 menunjukkan keputusan yang diperolehi bagi Eksperimen I.
Time (s)
Masa (s)
0
20
40
60
80
100
120
140
160
180
Volume of gas released (cm3)
Isi padu gas terbebas (cm3)
0.00
6.50
12.50
17.80
23.50
27.20
31.80
35.00
35.00
35.00
Table 5.1
Jadual 5.1
Diagram 5.2
Rajah 5.2
Experiment I
Eksperimen I
Gas Y
Experiment II
Eksperimen II
Water
Air
Zinc powder
Serbuk zink
z
Dilute hydrochloric acid
Asid hidroklorik cair
Gas Y
Dilute hydrochloric acid
Asid hidroklorik cair
Water
Air
Zinc granules
Ketulan zink
z

SULIT 12 4541/2
Table 5.2 shows the result obtained for Experiment II.
Jadual 5.2 menunjukkan keputusan yang diperolehi bagi Eksperimen II.
Time (s)
Masa (s)
0
20
40
60
80
100
120
140
160
180
Volume of gas released (cm3)
Isi padu gas terbebas (cm3)
0.00
8.50
15.50
21.00
26.80
31.50
35.00
35.00
35.00
35.00
Table 5.2
Jadual 5.2
(a) (i) Name gas Y.
Namakan gas Y.
…………………………………………………………………………………
[1 mark]
(ii) Describe a chemical test to verify gas Y.
Jelaskan satu ujian kimia untuk mengesahkan gas Y.
…………………………………………………………………………………
…………………………………………………………………………………..
[2 marks]
(b) (i) Calculate the average rate of reactions for Experiment I and Experiment II.
Hitung kadar tindak balas purata untuk tindak balas bagi Eksperimen I dan Eksperimen II.
Experiment 1:
Eskperimen I:
Experiment II:
Eksperimen I1:

SULIT 13 4541/2
(ii) Compare the rate of reaction of Experiment I and Experiment II.
Bandingkan kadar tindak balas bagi Eksperimen I dan Ekesperimen II.
……………….………..……………………………………………………………
……………….………………………………………………………………….
[1 mark]
(iii) Explain the answer in 5(b)(ii) with reference to the collision theory.
Terangkan jawapan di 5(b)(ii) dengan merujuk kepada teori perlanggaran.
……………………………………………………………………………….…
………………………………………………………………………..…………
………………………………………………………………………………….
…………………………………………………………………………………
[3marks]
(c) Sketch the graph of volume of gas Y produced against time for both experiments on the same axes.
Lakar graf isipadu gas Y yang dihasilkan melawan masa bagi kedua-dua eksperimen.
[2marks]
Time ( s)
Masa (s)
Volume of gas Y (cm3)
Isi padu gas Y (cm 3)

SULIT 14 4541/2
6 (a) Diagram 6 shows the apparatus set-up to study the displacement of halogen between bromine water and potassium iodide solution.
Rajah 6 menunjukkan susunan radas untuk mengkaji tindak balas penyesaran halogen di antara air bromin dan larutan kalium iodida.
Diagram 6
Rajah 6
1,1,1-trichloroethane is added into the mixture and shaken thoroughly.
1,1,1-trikloroetana ditambah ke dalam campuran itu dan digoncang lagi dengan sempurna.
(i) State the function of bromine water.
Nyatakan fungsi air bromin.
…………………………………………………………………………………..
[1 mark]
(ii) State one observation after 1,1,1-trichloroethane is added to the mixture.
Nyatakan satu pemerhatian setelah 1,1,1-trichloroetana ditambah kepada campuran.
…………………………………………………………………………………..
[1 mark]
(iii) Write the ionic equation for the reaction.
Tuliskan persamaan ion bagi tindak balas ini.
…………………………………………………………………………………..
[2 marks]
(iv) State the change in the oxidation number of iodine.
Nyatakan perubahan nombor pengoksidaan bagi iodin.
…………………………………………………………………………………..
[1 mark]
Potassium iodide solution
Larutan kalium iodida
Bromine water
Air bromin

SULIT 15 4541/2
(v) Name another reagent that can replace bromine water.
Namakan reagen lain yang boleh menggantikan air bromin.
…………………………………………………………………………………..
[1 mark]
(b) An experiment is carried out to study the reactivity of metals with oxygen.
Satu eksperimen telah dijalankan untuk mengkaji kereaktifan logam terhadap oksigen.
Table 6 shows the observations and the colour of the residue for each metal.
Jadual 6 menunjukkan pemerhatian dan warna baki pemanasan bagi setiap logam itu.
Metal
Logam
Observation
Pemerhatian
Colour of Residue
Warna Baki
W
Glow brightly
Membara terang
Yellow when hot
white when cold
Kuning semasa panas
putih semasa sejuk
X
Glow faintly
Membara malap
Black
Hitam
Y
Burn brightly
Menyala terang
White
Putih
Table 6
Jadual 6
(i) Draw the diagram of the apparatus set-up for the experiment.
Lukiskan diagram bagi susunan radas bagi eksperimen ini.

SULIT 16 4541/2
(ii) Suggest metal W.
Cadangkan logam W.
…………………………………………………………………………………..
[1 mark]
(iii) Based on your answer in 6(b)(ii),
Write the chemical equation for the reaction between metal W and oxygen.
Berdasarkan jawapan anda dalam 6(b)(ii),
Tuliskan persamaan kimia bagi tindak balas antara metal W dan oksigen.
…………………………………………………………………………………..
[1 mark]
(iv) Based on the observations, arrange metals W, X and Y in descending order of the reactivity towards oxygen.
Berdasarkan kepada pemerhatian, susunkan logam-logam W, X and Y mengikut tertib menurun dalam kereaktifan terhadap oksigen.
…………………………………………………………………………………..
[1 mark]

SULIT 17 4541/2
Section B
Bahagian B
[20 marks]
[20 markah]
Answer any one questions from this section.
Jawab mana-mana satu soalan daripada bahagian ini
7. (a) Diagram 7.1 shows a frying pan and a water pipe. Rajah 7.1 menunjukkan sebuah kuali dan sebatang paip air.
Diagram 7.1 Rajah 7.1
State the type of glass and polymer to make the glass lid and the water pipe. Give a reason to each of your answer based on the property of each material. Nyatakan jenis kaca dan polimer untuk membuat penutup kaca dan paip air itu. Berikan satu sebab bagi setiap jawapan anda berdasarkan sifat setiap bahan itu. [4 marks]
Water pipe
Paip air
Glass lid
Penutup kaca

SULIT 18 4541/2
(b) Sulphuric acid is manufactured in industry through Contact Process. The process consists of three stages. Asid sulfurik dihasilkan dalam industri melalui Proses Sentuh. Proses itu terdiri daripada tiga peringkat.
Stage 1 Peringkat 1
Molten sulphur is burnt in dry air to produce sulphur dioxide. Leburan sulfur dibakar dalam udara untuk menghasilkan sulfur dioksida. S + O2  SO2
Stage 2
Peringkat 2
Sulphur dioxide and excess oxygen gas are reacted to produce sulphur trioxide. Sulfur dioksida dan gas oksigen berlebihan bertindak balas untuk menghasilkan sulfur trioksida.
2SO2 + O2 2SO3
Stage 3
Peringkat 3
Sulphur trioxide is first reacted with concentrated sulphurid acid to form oleum. The oleum is then diluted with water to produce sulphuric acid. Sulfur trioksida pada mulanya bertindak balas dengan asid sulfurik pekat untuk membentuk oleum. Kemudian oleum itu dicairkan dengan air untuk menghasilkan asid sulfurik.
Table 7.1 Jadual 7.1
(i) 8 g of sulphur is burnt completely in Stage 1. Calculate the volume of sulphur dioxide produced. [Relative atomic mass: S = 32 ; Molar volume = 24 dm3 mol-1 at room condition] 8 g sulfur dibakar dengan lengkap dalam Peringkat 1. Hitungkan isi padu sulfur dioksida yang dihasilkan. [Jisim atom relatif: S = 32 ; Isi padu molar = 24 dm3 mol-1 pada keadaan bilik]
[2 marks]
(ii) Describe how sulphur dioxide gas can cause environmental pollution and state two effects of pollution cause by sulphur dioxide gas. Huraikan bagaimana gas sulfur dioksida boleh menyebabkan pencemaran alam sekitar dan nyatakan dua kesan pencemaran yang disebabkan oleh gas sulfur dioksida. [3 marks]
(iii)Write the chemical equation for the formation of oleum in Stage 3. Tuliskan persamaan kimia bagi pembentukan oleum dalam Peringkat 3. [1 mark ] http://www.chngtuition.blogspot.com

SULIT 19 4541/2
(c) Diagram 7.2 shows two experiments to investigate the effectiveness of the cleansing action between cleaning agents X and Y. Rajah 7.2 menunjukkan dua eksperimen untuk mengkaji keberkesanan tindakan pencucian antara agen pencuci X dan agen pencuci Y.
Experiment
Eksperimen
I
II
Cleaning agent Agen pencuci
X
Y
Chemical formula Formula kimia
CH3(CH2)14COO-K+
CH3(CH2)11OSO3-K+
Cleaning in hard
water
Pencucian dalam air liat
Observation Pemerhatian
Oil stain remains Kesan minyak kekal
Oil stain is removed Kesan minyak hilang
(i) Based on Diagram 7.2, compare and contrast the effectiveness of the cleansing action between cleaning agent X and cleaning agent Y in hard water. Explain your answer. Berdasarkan Rajah 7.2, banding dan bezakan keberkesanan tindakan pencucian antara agen pencuci X dan agen pencuci Y dalam air liat. Terangkan jawapan anda.
[5 marks]
Oil stain on a handkerchief
Kotoran bergris pada sehelai sapu tangan
Oil stain on a handkerchief
Kotoran bergris pada sehelai sapu tangan
Hard water + cleaning agent Y Air liat + agen pencuci Y
Hard water + cleaning agent X Air liat + agen pencuci X
Diagram 7.2
Rajah 7.2

SULIT 20 4541/2
(ii) Diagram 7.3 shows the structure of a particle of agent Y. Rajah 7.3 menunjukkan struktur bagi suatu zarah agen Y.
Part P Part Q Bahagian P Bahagian Q
Diagram 7.3 Rajah 7.3
State the name of part P and part Q. Explain the role of part P and part Q in the
cleansing action. Nyatakan nama bahagian P dan bahagian Q. Terangkan peranan bahagian P
dan bahagian Q dalam tindakan pencucian.

SULIT 21 4541/2
8
(a)
Diagram 8.1 shows a chemical cell and an electrolytic cell. Metal P is situated below zinc in the electrochemical series.
Rajah 8.1 menunjukkan satu sel kimia dan satu sel elektrolisis. Logam P terletak di bawah zink dalam siri elektrokimia.
Diagram 8.1
Rajah 8.1
Based on Diagram 8.1, state:
Berdasarkan Rajah 8.1, nyatakan:
 the negative terminal for chemical cell and electrolytic cell.
terminal negatif untuk sel kimia dan sel elektrolisis tersebut.
 the flow of direction of electron for the chemical cell and electrolytic cell.
arah pengaliran elektron bagi sel kimia dan sel elektrolisis tersebut.
[ 4 marks]
Magnesium electrode
Elektrod
magnesium
Zinc electrode
Elektrod zink
P electrode
Elektrod P
P nitrate solution
Larutan P nitrat
Chemical cell
Sel kimia
Electrolytic cell
Sel elektrolisis

SULIT 22 4541/2
(b)
A student wants to electroplate iron spoon with silver metal to make it more shining and attractive. The following are materials that used in the electroplating process.
Seorang pelajar ingin menyadur sudu besi dengan logam argentum agar kelihatan berkilat dan menarik. Berikut adalah bahan-bahan yang digunakan dalam proses penyaduran tersebut.
Referring to the above materials, plan one laboratory experiment to electroplate the iron spoon. Your answer should include the following :
Merujuk pada bahan-bahan di atas, rancangkan satu eksperimen makmal bagi proses penyaduran sudu besi tersebut. Jawapan anda perlu mengandungi perkara berikut:
 A labelled diagram showing the apparatus set-up.
Gambar rajah berlabel menunjukkan susunan radas.
 Procedure of experiment
Prosedur eksperimen
 The half-equations for the reaction at cathode or anode.
Setengah persamaan bagi tindak balas yang berlaku di katod atau di anod.
[6 marks]
 Silver plate
Kepingan argentum
 Iron spoon
Sudu besi
 Silver sulphate solution
Larutan argentum sulfat

SULIT 23 4541/2
(c)
Diagram 8.2 shows the set-up of apparatus for a chemical cell. Metal Q is placed above copper in the electrochemical series and act as a positive terminal in the chemical cell.
Rajah 8.2 menunjukkan susunan radas bagi satu sel kimia. Logam Q terletak di atas kuprum dalam siri elektrokimia dan berfungsi sebagai terminal positif dalam sel kimia itu.
Diagram 8.2
Rajah 8.2
Describe how the set-up of apparatus can be function as a chemical cell. Your answer should include :
Terangkan bagaimana susunan radas itu boleh berfungsi sebagai sel kimia. Jawapan anda haruslah mengandungi:
 the suitable name of metal Q and Q solution
nama logam Q dan larutan Q yang sesuai
 the direction of flow of electrons
arah pengaliran elektron
 the half equations for the reaction at positive and negative terminals
setengah persamaan tindak balas yang berlaku di terminal positif dan negatif
 an ionic equation for the reaction
persamaan ion bagi tindak balas
 the function of porous pot
fungsi pasu berliang
 the observations after 30 minutes the reaction occur
pemerhatian selepas 30 minit tindak balas berlaku
[10 marks]
V
Aluminium plate
Kepingan aluminium
Metal Q
Logam Q
Porous Pot
Pasu berliang
Aluminium nitrate solution
Larutan aluminium nitrat
Q solution
Larutan Q http://www.chngtuition.blogspot.com

SULIT 24 4541/2
9. (a) By using suitable examples, state two applications of neutralisation in daily life .
Dengan menggunakan contoh yang sesuai, nyatakan dua aplikasi peneutralan dalam kehidupan harian.
[4 marks]
(b) Diagram 9 shows the pH values for solutions of alkali Q and alkali R which have same
concentration.
Rajah 9 menunjukkan nilai pH bagi alkali Q dan alkali R yang mempunyai kepekatan
yang sama.
Diagram 9
Rajah 9
By using one named example for each alkali, explain why the pH values of the alkalis
are different.
Dengan menamakan satu contoh bagi setiap alkali, terangkan mengapa nilai pH bagi setiap alkali itu berbeza.
[ 6 marks]
( c ) Solution X and solution Y are used to prepare barium carbonate salt.
Describe the preparation of barium carbonate salt in the laboratory.
In your description, include the chemical equation involved.
Larutan X dan larutan Y digunakan untuk menyediakan garam barium karbonat.
Huraikan penyediaan garam barium karbonat dalam makmal.
Dalam huraian anda, sertakan persamaan kimia yang terlibat.
[ 10 marks]
Alkali Q
Alkali R
10
14

SULIT 25 4541/2
10(a) Diagram 10.1 shows the structural formulae of compound A and compound B.
Rajah 10.1 menunjukkan formula struktur bagi sebatian A dan sebatian B.
Compound A Compound B
Sebatian A Sebatian B
Diagram 10.1
Rajah 10.1
Compound A and compound B are burnt completely in oxygen to produce carbon dioxide gas and water.
Sebatian A dan sebatian B terbakar lengkap dalam oksigen menghasilkan gas karbon dioksida dan air.
(i) Name compound B.
Namakan sebatian B.
(ii) Compound B produced more soot than compound A when burnt in oxygen. Explain why.
Sebatian B menghasilkan lebih jelaga daripada sebatian A apabila terbakar dalam oksigen. Terangkan mengapa.
[Relative molecular mass of: A = 86, B = 84]
[Jisim molekul relatif: A = 86, B = 84]
[4 marks]

SULIT 26 4541/2
(b) Diagram 10.2 shows the structural formulae of compound J and compound K.
Rajah 10.2 menunjukkan formula struktur bagi sebatian J dan sebatian K.
Compound J Compound K
Sebatian J Sebatian K
Diagram 10.2
Rajah 10.2
State one physical property of compound K . Describe briefly a chemical test to differentiate between compound J and compound K.
Nyatakan satu sifat fizik Sebatian K. Huraikan secara ringkas satu ujian kimia untuk membezakan antara sebatian J dan sebatian K.
[6 marks]
(c) Alcohols undergo dehydration reaction to produce alkenes and water.
Describe how to prepare an alkene from a named alcohol through dehydration process. In your description, include the diagram of the apparatus set-up and balanced chemical equation for the reaction.
Alkohol mengalami tindak balas pendehidratan untuk menghasilkan alkena dan air.
Huraikan bagaimana satu alkena disediakan daripada alkohol yang dinamakan melalui proses pendehidratan. Dalam huraian anda, sertakan gambar rajah bagi susunan radas dan persamaan kimia seimbang bagi tindak balas itu.
[10 marks]
KERTAS SOALAN TAMAT http://www.chngtuition.blogspot.com

4541/3 © 2013 Hak Cipta BPSBPSK [Lihat sebelah
SULIT
Untuk Kegunaan Pemeriksa
Soalan
Markah
Penuh
Markah
Diperoleh
1
15
2
18
3
17
Jumlah
50
Nama: ………………………………………………………………. Tingkatan: ……………
SULIT
4541/3
Chemistry
Kertas 3
Ogos
2013
1 ½ jam
BAHAGIAN PENGURUSANSEKOLAH BERASRAMA PENUH
CHEMISTRY
Kertas 3
Satu jam tiga puluh minit
1. Tuliskan nama dan tingkatan pada ruang yang
disediakan di atas.
2. Kertas soalan ini adalah dalam dwibahasa.
3. Soalan dalam bahasa Inggeris mendahului
soalan yang sepadan dalam Bahasa Melayu.
4. Calon dibenarkan menjawab keseluruhan atau
sebahagian soalan sama ada dalam Bahasa
Inggeris atau Bahasa Melayu.
5. Calon dikehendaki membaca maklumat di
halaman belakang kertas soalan ini.

2
Answer all questions
Jawab semua soalan
1. Diagram 1.1 shows the apparatus set-up for an experiment to determine the
melting point of naphthalene. The temperature reading of naphthalene is recorded
at one minute intervals until the temperature is above its melting point.
Rajah 1.1 menunjukkan susunan radas bagi satu eksperimen untuk menentukan
takat lebur naftalena. Bacaan suhu direkodkan pada sela masa satu minit
sehingga melebihi takat lebur naftalena.
For examiner’s
use
Diagram 1.1
Rajah 1.1
Thermometer
Termometer
Boiling tube
Tabung didih
Water
Air
Naphthalene
Naftalena

3
Diagram 1.2 shows the recorded thermometer readings at one minute intervals.
Rajah 1.2 menunjukkan bacaan termometer yang direkodkan pada sela masa
satu minit.
For
examiner’s
use
Temperature at
Suhu pada
0 min: …………..
Temperature at
Suhu pada
1 min: ……………..
Temperature at
Suhu pada
2 min: ……………
Temperature at
Suhu pada
3 min: …………
Temperature at
Suhu pada
4 min: …………….
Temperature at
Suhu pada
5 min: ……………
Temperature at
Suhu pada
6 min: ……………..
Temperature at
Suhu pada
7 min: .…………
Diagram 1.2
Rajah 1.2

4
(a) Record all the temperatures in the spaces provided in Diagram 1.2
Rekodkan suhu pada ruang yang disediakan dalam Rajah 1.2.
[3 marks]
[3 markah]
For examiner’s
use
1(a)
(b) On the graph paper provided, plot a graph of temperature against time for the
heating of naphthalene.
Pada kertas graf yang disediakan, plot satu graf suhu melawan masa bagi
pemanasan naftalena.
[3 marks]
[3 markah]
1(b)
(c) Based on the graph in (b);
Berdasarkan graf di (b);
(i) Determine the melting point of naphthalene.
Show on the graph how you determine this melting point.
Berdasarkan graf di (b), tentukan takat lebur naftalena.
Tunjukkan pada graf bagaimana anda menentukan takat lebur tersebut.
……………………………………………………………………………..
[3 marks]
[3 markah]
1(c)(i)
(ii) How does graph in 1(b) shows the melting point of naphthalene?
Bagaimanakah graf di 1(b) dapat menunjukkan takat lebur naftalena?
…………………………………………………………………………….
……..………………………………………………………………………
…………..…………………………………………………………………
[3 marks]
[3 markah]
1(c)(ii)

5
Graph of temperature against time.
Graf suhu melawan masa http://www.chngtuition.blogspot.com

6
(d) The temperature of naphthalene did not change from the 2nd minute until 4th
minute during the heating process.
Explain why?
Suhu naftalena tidak berubah dari minit ke-2 sehingga minit ke-4 semasa
proses pemanasan naftalena.
Terangkan mengapa?
………………………………………...…………………………………………
………..…………………………………………………………………………
………………..…………………………………………………………………
[3 marks]
[3 markah]
For examiner’s
use
1(d)
TOTAL

7
2.
Diagram 2.1 shows the apparatus set-up of the experiment to investigate the effect of other metal on rusting of iron. A mixture of jelly solution, potassium hexacyanoferrate (III), K3Fe(CN)6 solution and phenolphthalein were used as medium in each test tube. The observation was recorded after one day.
Rajah 2.1 menunjukkan susunan radas bagi eksperimen untuk mengkaji kesan logam lain terhadap pengaratan besi. Medium yang digunakan di dalam setiap tabung uji adalah campuran larutan agar-agar, larutan kalium heksasianoferat (III), K3Fe(CN)6 dan fenolftalein. Pemerhatian direkodkan selepas satu hari.
For examiner’s use
Test tube
Set-up of apparatus
A
B
C
D
Diagram 2.1
Rajah 2.1
Iron nail coiled with magnesium ribbon
Paku besi dililit dengan pita magnesium
Iron nail coiled with copper strip
Paku besi dililit dengan kepingan kuprum
Iron nail coiled with zinc strip
Paku besi dililit dengan kepingan zink
Iron nail
Paku besi
Jelly solution + potassium hexacyanoferrate(III) + phenolphthalein
larutan agar-agar, larutan kalium heksasianoferat (III) + fenolftalein
larutan agar-agar, larutan kalium heksasianoferat(III) + fenolftalein

8
(a) Table 2.1 shows the result of the experiment.
State the inference for each test tube.
Jadual 2.1 menunjukkan keputusan eksperimen tersebut.
Nyatakan inferens untuk setiap tabung uji.
For examiner’s
use
Test tube A B C D
Intensity of
blue colour
Keamatan
warna biru
None
Tiada
High
Sangat tinggi
None
Tiada
Low
Rendah
Pink
colouration
Warna
merah
jambu
Present
Ada
Present
Ada
Present
Ada
Present
Ada
Inference
Inferens
Table 2.1
Jadual 2.1
[3 marks]
[3 markah]
2(a)
(b) State the hypothesis for the experiment.
Nyatakan hipotesis bagi eksperimen tersebut.
………………………………………………………………………………...…
………………………………………………………………………………...…
………………………………………………………………………………..…
…………………………………………………………………………………..
[3 marks]
[3 markah]
2(b)

9
(c) State the variables for this experiment.
Nyatakan pembolehubah bagi eksperimen ini.
For
examiner’s use
(i) The manipulated variable:
Pembolehubah dimanipulasikan:
………………………………………………………………………….....
(ii) The responding variable:
Pembolehubah bergerak balas:
……………………………………………………………………………
(iii) The constant variable:
Pembolehubah dimalarkan:
……………………………………………………………………………
[3 marks]
[3 markah]
2(c)
(d) State the operational definition for the rusting of iron.
Nyatakan definisi secara operasi bagi pengaratan besi.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
[3 marks]
[3 markah]
2(d)

10
(e) Based on the experiment, classify the metals that can provide sacrificial
protection and metals that cannot provide sacrificial protection to iron.
Berdasarkan eksperimen ini, kelaskan logam-logam tersebut kepada logam
yang boleh menyediakan perlindungan korban dan logam yang tidak boleh
menyediakan perlindungan korban.
[3 marks]
[3 markah]
2(e)
(f) Metal Y is placed below copper in Electrochemical Series.
Predict one observation when metal Y is coiled with iron nail and dipped into
the mixture of jelly solution, potassium hexacyanoferrate(III), K3Fe(CN)6
solution and phenolphthalein.
Logam Y terletak di bawah kuprum dalam Siri Elektrokimia.
Ramalkan satu pemerhatian apabila logam Y dililitkan pada paku besi dan
dicelupkan ke dalam campuran larutan agar-agar, larutan kalium
heksasianoferat(III) K3Fe(CN)6 dan fenolftalein.
……………………………………………………………………………………
[3 marks]
[3 markah]
For
examiner’s use
2(f)
TOTAL

11
3 Diagram 3.1 shows the production of ammonia, NH3 through Haber process. The mixture
of nitrogen and hydrogen gases is passed over iron, Fe. Iron acts as the catalyst to increase
the rate of the production of ammonia gas.
Rajah 3.1 menunjukkan penghasilan ammonia, NH3 melalui proses Haber. Campuran gas
nitrogen dan gas hidrogen dialirkan melalui serbuk besi. Besi bertindak sebagai mangkin
yang meningkatkan kadar penghasilan gas ammonia.
Diagram 3.1
Rajah 3.1
Based on this idea, plan one laboratory experiment to investigate the effect of the
presence of catalyst on the rate of decomposition of hydrogen peroxide, H2O2.
Berdasarkan idea ini, rancangkan satu eksperimen makmal untuk mengkaji kesan
kehadiran mangkin ke atas kadar penguraian hidrogen peroksida, H2O2.
Your planning should include the following aspects:
Perancangan anda hendaklah mengandungi aspek-aspek berikut:
(a) Problem statement
Penyataan masalah
(b) All the variables
Semua pemboleh ubah
(c) Statement of the hypothesis
Pernyataan hipotesis
(d) List of substances and apparatus
Senarai bahan dan radas
(e) Procedure for the experiment
Prosedur eksperimen
(f) Tabulation of data
Penjadualan data
[17 marks]
[17 markah]
KERTAS SOALAN TAMAT
Iron, Fe
450oC

4541/3 © 2013 Hak Cipta BPSBPSK [Lihat sebelah
SULIT
INFORMATION FOR CANDIDATES
MAKLUMAT KEPADA CALON
1. This question paper consists of three questions. Question 1, Question 2 and Question 3.
Kertas soalan ini mengandungi tiga soalan: Soalan 1, Soalan 2 dan Soalan 3.
2. Answer all questions. Write your s answer for Question 1 and Question 2 in the spaces provided in this question paper.
Jawab semua soalan. Tuliskan jawapan bagi Soalan 1 dan Soalan 2 pada ruang yang disediakan dalam kertas soalan.
3. Write your answers for question 3 on the addition answer sheets provided by invigilators. You may use equations, diagrams, tables, graph and other methods to explain your answer.
Tulis jawapan anda bagi Soalan 3 di dalam helaian tambahan yang dibekalkan oleh pengawas peperiksaan.Anda boleh menggunakan persamaan, gambar rajah, jadual, graf dan cara lain yang sesuai untuk menjelaskan jawapan anda.
4. The diagram in the questions is not drawn to scale unless stated.
Rajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali dinyatakan.
5. The marks allocated for each question or sub-part of a question is shown in brackets.
Markah yang diperuntukkan bagi setiap jawapan atau ceraian soalan ditunjukkan dalam kurungan.
6. Show your working, it may help you to get marks.
Tunjukkan kerja mengira. Ini membantu anda mendapatkan markah,
7. If you wish to change your answer, cross out the answer that you have done. Then write down the new answer.
Sekiranya anda hendak menukar jawapan, batalkan jawapan yang telah dibuat,kemudian tulis jawapan yang baru.
8. You may use a non-programmable scientific calculator.
Anda dibenarkan menggunakan kalkulator saintifik yang tidak diprogramkan.
9. Tie the addition answer sheets together with this question paper and hand in at the end of the examination.
Ikat semua kertas jawapan anda bersama-sama soalan ini di akhir peperiksaan.
Marks awarded:
Mark
Description
3
Excellent : The best response
2
Satisfactory : An average response
1
Weak : An inaccurate response
0
No response or wrong response

1
CHEMISTRY
SKEMA JAWAPAN KERTAS 1
1
A
11
A
21
D
31
B
41
D
2
D
12
A
22
B
32
D
42
B
3
A
13
C
23
A
33
B
43
D
4
C
14
D
24
C
34
D
44
A
5
D
15
B
25
C
35
D
45
B
6
C
16
B
26
C
36
C
46
C
7
C
17
A
27
A
37
D
47
D
8
A
18
A
28
B
38
B
48
B
9
C
19
C
29
A
39
D
49
B
10
D
20
C
30
B
40
A
50
C

2
KERTAS 2
SECTION A
No
Rubric
Mark
1(a)
(i)
Diffusion r. diffuse
1
(ii)
Ion
1
(iii)
1. Potassium manganate(VII) is made of tiny and discrete particles/ions
2. The particles are constantly moving/vibrate and rotate
3. The particles move into spaces between agar particles// there are spaces between agar particles// the particles move from high concentration area to low concentration region
1
1
1
(b)
(i)
Proton // neutron r. p/n
1
(ii)
Atoms that have the same proton number but difference nucleon number.
1
(iii)
8
1
(v)
To estimate the age of fossil
1
TOTAL
9

3
No
Rubric
Mark
2 (a)(i)
2.8.2
1
(ii)
Group 2, Period 3
1
(b)
Gas
1
(c )
Chlorine/ Cl
1
(d) (i)
(ii)
Al2O3
Ionic r: ionic compound
1
1
(e)
Mass Mg Cl
2.4 g 7.1 g
Mol 0.1 0.2
Ratio 1 2
Formula : MgCl2
1
1
1
TOTAL
9

4
No
Rubric
Mark
3 (a)
(i) ionic compound formed when the hydrogen ion from an acid is replaced by a metal ion or ammonium ion
(ii) Blue
1
1
(b)
(i) Oxygen
(ii) NO2
(iii) CuO
1
1
1
(c)
(i) Copper(II) ion
(ii) Copper(II) carbonate / CuCO3
1
1
(d)
1. Mol of HCl = 0.5 x 20 /1000// 0.01 mol
2. Mol of H2O= 0.005
3. No. of H2O molecules = 0.005 x 6.02 x 10 23 // 3.01 x 10 21
1
1
1
TOTAL
10

5
No
Rubric
Mark
4 (a)
Heat change / released when one mole of copper is displaced from/ copper(II) sulphate solution by zinc
1
(b)
Polystyrene is a heat insulator / / to reduce heat loss to surroundings r: to prevent
1
(c) (i)
(ii)
(iii)
No of moles of Copper(II) ion = 0.2 x 50 // 0.01 mol
1000
1. 1 mol of Cu is displaced produce 210 kJ heat
2. 0.01 mol of Cu = 0.01 x 210 kJ
// 2.1 kJ / 2100 J
2100 J = 50 x 4.2 x  //  = 10oC
1
1
1
1
(d) (i)
(ii)
More than -210 kJ mol-1 / Higher / Increases
Magnesium is more electropositive than zinc // magnesium is higher than zinc in electrochemical series // distance between Mg – Cu is further than Zn-Cu in electrochemical series
1
1
(e)
1. Label energy and diagram has 2 different energy levels
for exothermic reaction
2. Balanced chemical / ionic equation, H is written
1
1
TOTAL
10
Energy
ZnSO4 + Cu /
Zn2+ + Cu
Zn + CuSO4 /
Zn + Cu2+
H = -210 kJ mol-1

6
No
Rubric
Mark
5(a) (i)
Hydrogen
1
(ii)
Place/ insert a lighted splinter into a test tube
Produce ”pop” sound
1
1
(b)(i)
Experiment 1:
Average rate of reaction:
= 35/ 140 cm3s-1 or 0.25 cm3s-1
Experiment II:
Average rate of reaction:
= 35/120 cm3s-1 or 0.29 cm3s-1
1
1
(ii)
Rate of reaction in Experiment II is higher
1
b(iii)
In Experiment II ,
1. Size of zinc in is smaller// Total surface area of zinc in Experiment II is bigger
2. Frequency of collision between zinc atom and hydrogen ion is higher
3. Frequency of effective collisions between zinc atom and hydrogen ion is higher
1
1
1
(c )
Volume of gas Y (cm3)
1. Correct shape of graf and smooth
2. Label the curve correctly
1
1
Total
11
Experiment II
Time ( s)
Experiment I

7
No.
Rubric
Marks
6(a)(i)
oxidizing agent / to oxidize iodide ion
1
(ii)
Purple layer formed
1
(iii)
Br2 + 2I-  2Br– + I2
1. First mark for correct formulae of reactants and products
2. Balanced the equation
1
1
(iii)
–1  0
1
(iv)
Chlorine r: Fluorine
1
(b)(i)
1. Functional diagram
2. Label; Potassium manganate(VII), glass wool, metal
1
1
(ii)
Zinc / Zn
1
(iii)
2Zn + O2  2ZnO
1
(iv)
Y, W , X
1
Total
11
Heat
Panaskan
Heat
Panaskan
Potassium manganate(VII)
Kalium manganat(VII)
Glass wool
Wul kaca
Metal powder
Serbuk logam

8
SECTION B
No
Mark scheme
Mark
Σ Mark
7(a)
P1: Borosilicate glass
P2: It has a lower thermal expansion coefficient // high resistant to heat// more resistant to chemical attack.
P3: Polyvinyl chloride
P4: It does not rust a: Light
1
1
1
1
4
7(b)(i)
Number of moles of sulphur = 832 // 0.25 mol
Volume of sulphur dioxide = 0.25  24 = 6 dm3 // 6000 cm3
[unit ‘mol’ and ‘dm3 ‘ / ‘cm3’ must be stated]
1
1
2
7(b)(ii)
P1: Sulphur dioxide dissolves in water/ rain water to produce acid solution/acid rain.
Any two correct answers:
P2: Acid rain can corrode buildings /metal structures
P3: Lake and river become acidic
P4: pH of soil decreases
P5: Destroys trees/forest
1
1
1
3
7(b)(iii)
SO3 + H2SO4  H2S2O7
1
1
7(c)(i)
P1: Y is more effective than X in hard water.
P2: Hard water contains magnesium or calcium ions.
P3: X form scum/insoluble salt with magnesium /calcium ion
P4: Y does not form scum/insoluble salt.
P5: Amount of agent X is reduced// amount of agent Y is remains
1
1
1
1
1
5
7(c)(ii)
P1: Part P = Hydrophobic
P2: Part Q = Hydrophilic
P3: Hydrophobic part dissolves in the grease/ oil
P4: Hydrophilic part dissolves in the water
P5: This reduces the surface tension// Increase the wetting ability of water
r: Like / dislike
1
1
1
1
1
5
Total
20

9
No
Answer
Mark
Total
Mark
8
(a)
(b)
Voltaic cell
Electrolytic cell
Negative terminal
Zinc
P
The flow of electron
Zinc to P through external circuit
Magnesium to P through external circuit
r: showing the answer in the diagram
 Functional diagram (not include rheostat)
 Silver plate is connect to positive terminal and iron spoon connect to negative terminal.
Procedure:
1. Iron spoon is cleaned with sand paper
2. a beaker is half fulled with silver sulphate solution
3. iron spoon and silver plate are dipped into the silver sulphate solution
4. iron spoon is connected to the negative terminal and silver plate is connected to the positive terminal.
5. half equation:
Anode/ Silver plate : Ag → Ag+ + e //
Cathode/ Iron spoon : Ag+ + e → Ag
[Anode/silver plate or cathode/Iron spoon must be stated]
1 + 1
1 + 1
1
1
1
1
1
1
1
4
Max 6
Iron spoon
Silver plate
Silver sulphate solution
A http://www.chngtuition.blogspot.com

10
(c)
1. metal Q : eg: Zinc [Zn/Fe/Sn/Pb]
2. Q solution: eg: zinc nitrate
3. Flow of electron : Aluminium plate to zinc plate through connecting wire/ external circuit
4. Negative terminal : Al → Al3+ + 3e
5. Positive terminal : 2H+ + 2e → H2
6. Ionic equation: 2Al + 6H+ → 2Al3+ 3H2
7. Function of porous pot : to allow the movement of ions // to balance the total charges between solution
8. Observations:
 Aluminium plate become thinner// Mass decreases// size become smaller
 Colourless bubble gas produce
1
1
1
1
1
1 + 1
1
1
1
10
TOTAL
20
SECTION C
NO
RUBRIC
MARK
ΣMARK
9 (a)
Daily application of neutralisation
1. Ammonia : neutralize organic acid produced by bacteria// to prevent latex from coagulate/remain as liquid
2. Antacid/ health salt/ sodium hydrogen carbonate : neutralised acid in stomach of gastric patients
3. Lime /quick lime (calcium oxide)/ slaked lime
(calcium hydroxide), chalk (calcium carbonate) : neutralised acidic soil
4. Magnesium hydroxide / toothpaste: neutralised acid
produced by bacteria in our mouth
[Accept other suitable examples and usage]
Any 2
1+1
1+1
4
(b)
1. Example of R ; sodium hydroxide solution/ litium hydroxide solution/ potassium hydroxide solution
2. R ionised completely in water and produced high concentration of OH- ions
3. Exampleof Q : ammonia aqueous / solution
4. Q ionised partially in water and produce low concentration of OH- ions
5. the concentartion of OH – ions in R is higher than Q
1
1+1
1
1+1
1
Max 6

11
(c)
1. Solution 1 : barium nitrate /barium chloride solution
2. Solution 2 : sodium carbonate/ potassium carbonate/lithium carbonate solution/ H2CO3
[Any pair of solution above]
3. Procedure :
1. Pour solution 1 into a beaker
2. Add solution 2 into the beaker/solution 1
3. Stir the mixture using glass rod
4. Filter the mixture
5. Rinse the residue with distilled water
6. Dry the precipitate/solid/salt/residue in between sheet of filter papers to dry
4. Equation
Sample answer:
Ba(NO3) 2 + Na2CO3  BaCO3 + 2NaNO3
// BaCl2 + Na2CO3  BaCO3 + 2NaCl
 Correct reactant & product
 Balanced
1
1
1
1
1
1
1
1
1
1
10
Total
20
No
Explanation
Mark
Σ mark
10
(a)(i)
Hex-1-ene
r: hexene
1
1
(ii)
1. Percentage of carbon in compound B is higher
2. Percentage carbon in compound A = 72/86 x 100 % / 83.72%
Percentage carbon in compound B = 72/84 x 100 % /85.71%
1
1
1
3

12
(b)
 Soluble in water/ miscible in water
 Low melting point/ volatile
 Colourless liquid
 Cannot conduct electricity
Any 1
1. Pour compound J and K into two different test tubes
2.Put magnesium ribbon / calcium carbonate / any suitable metal/carbonate metal into both test tubes
3. Place a lighted wooden splinter into the test tube// gas release is pass through the lime water
4. If ‘pop’ sound produced// lime water turns cloudy shows the compound is J
5. If no change the compound is K
1
1
1
1
1
1
6
(d)
Sample answer:
1. Name of alcohol
2. Place glass wool in a boiling tube
3. Add a few drops of alcohol to the glass wool
4. Clamp the boiling tube horizontally
5. Place a porcelain chips in the middle of the boiling tube
6. Heat the porcelain chips strongly
7. Heat the alcohol/glass wool
8. Collect the gas produced in a test tube
9. Functional diagram
10. Label : Glass wool damped with alcohol, porcelain chips, water, heat
11. Equation: C2H5OH → C2H4 + H2O
1
1
1
1
1
1
1
1
1
1
1
10
Total
20

13
KERTAS 3
No.
Mark scheme
Score
1(a)
Able to record all readings accurately to one decimal point with correct unit.
Answer :
70.0 oC, 77.0 oC, 83.0 oC, 83.0 oC, 83.0 oC, 84.0 oC, 89.0 oC, 95.0 oC
3
Able to record all readings without unit and no decimal point
2
Able to record at least 6 readings.
1
No response / wrong response
0
No.
Mark scheme
Score
1(b)
Able to plot a graph correctly which fulfills the following criteria.
Answer :
1. both axes are labeled and with correct units
Y axis : temperature, (oC)
X axis : time, min
2. uniform scale
3. all points are transferred correctly
4. smooth and correct curve
5. the size of the graph must ≥ 50% of the graph paper.
3
Able to plot a graph at least fulfill three of the criteria.
2
Able to have an idea to plot a graph
Example answer:
1. graph axis
2. a curve
1
0
Temperature
Time, t (s) http://www.chngtuition.blogspot.com

14
No.
Mark scheme
Score
1(c)(i)
Able to state all 3 criteria correctly
1. mark on the graph to show melting point
2. label the melting point on the graph and
3. state the melting point, 83.0 o C
Answer:
1.
2. show 83.0 o C / write the melting point on the graph
3. 83.0 o C
3
Able to state at least two criteria correctly
2
Able to state at least one criteria correctly
1
0
No.
Mark scheme
Score
(c)(ii)
Able to state the meaning of melting point based on the heating graph correctly.
1. The temperature is constant in 2nd minute to 4th minute
2. at 83.0 o C
3. Where solid becomes liquid.
Sample answer:
1. The temperature which doesn’t change / constant within a certain period of time / 2nd to 4th minute
2. at 83.0 o C
3. Where solid becomes liquid.
3
Able to state any two criteria correctly.
2
Able to state any one criteria correctly or an idea of melting point.
1
0
83
Temperature
Time, t (s) http://www.chngtuition.blogspot.com

15
No.
Mark scheme
Score
(d)
Able to explain why the temperature of naphthalene from 2nd minute to 4th minute did not change during the heating process correctly.
Answer :
1.Heat energy absorbed by the particles /molecules, is
2. Used to overcome the forces between particles / molecules.
3
Able to explain why the temperature of naphthalene did not change from 2nd minute to 4th minute during the heating process.
Sample answer:
1. Heat absorbed.
2. Used to overcome the forces between particles / molecules.
2
Able to an idea of why the temperature does not change during the heating process.
Example :
Heat is absorbed//
Solid become liquid//
1
0
Q
Mark scheme
Score
2(a)
Able to state all inferences correctly
Test tube
A
B
C
D
Inference
Iron nail does not rust // Fe2+ does not present
Iron nail rust // Fe2+ present / formed
Iron nail does not rust // Fe2+ does not present
Iron nail rust // Fe2+ present / formed
3
Able to state 3 inferences correctly
2
Able to state any one inference correctly
1
0

16
Q
Mark scheme
Score
2(b)
Able to state the hypothesis correctly
Sample answer:
When a more electropositive metal / higher than iron in Electrochemical series is in contact with iron, iron (nail) does not rust.
When a less electropositive metal / lower than iron in Electrochemical series is in contact with iron, iron (nail) rust.
3
Able to state the hypothesis less correctly
Sample answer:
When a more electropositive metal / higher than iron in Electrochemical series is in contact with iron, iron (nail) does not rust. or
When a less electropositive metal / lower than iron in Electrochemical series is in contact with iron, iron rust. or
The rusting of iron is faster/slower, if a less /more electropositive metal is in contact with iron/Fe.
2
Able to give an idea of hypothesis
Sample answer:
Iron rust when in contact with other metal // other metal affect the rusting of iron.
1
0
Q
Answer
Score
2(c)
Able to state all the variables in this experiment correctly
Sample answer:
Manipulated variable: Type / different metal
Responding variable: Rusting // presence of blue spot
Constant variable: Type of nail iron // iron// medium in which the iron are
kept
3
Able to state any two of the variables in this experiment correctly
2
Able to state any one of the variables in this experiment correctly
1
0

17
Q
Answer
Score
2(d)
Able to state all 3 criteria correctly
Sample answer:
1. Rusting of iron is the formation of blue spot / colouration
2. When iron nail is coiled / in contact with a less electropositive metal (copper) / metal located below iron in Electrochemical series.
3. Immersed / dipped / placed / put in a mixture of jelly solution, potassium hexacyanoferrate(III) and phenolphthalein.
3
Able to state at least two criteria correctly
Sample answer:
1. Rusting of iron is the formation of blue spot / colouration
2. When iron nail is coiled / in contact with a less electropositive metal
2
Able to state any one criteria correctly
Sample answer:
1. Rusting of iron is the formation of blue spot / colouration or
2. When iron nail is coiled / in contact with a less electropositive metal
1
0
Q
Answer
Score
2(e)
Able to classify the metals into metal that can provide sacrificial protection and metal that cannot provide sacrificial protection correctly.
Answer:
Metal that can provide sacrificial protection: magnesium /Mg and zinc /Zn
Metal that cannot provide sacrificial protection : copper/Cu
3
Able to classify any two metals correctly
2
Able to classify one metals correctly
1
0
Q
Answer
Score
2(f)
Able to predict the observation correctly.
Answer :
The intensity of blue spot/colouration is very high // higher than test tube B.
3
Able to predict the observation
Answer:
Blue spot/ colouration formed
2
Able to state idea of observation
Answer:
1 http://www.chngtuition.blogspot.com

18
Blue
0
Q
Answer
Score
3(a)
Able to state the problem statement of the experiment correctly.
How does the presence of catalyst / manganese (IV) oxide affect on the rate of decomposition of hydrogen peroxide?
How does the presence of catalyst affect the rate of reaction?
To investigate the effect/ presence of catalyst.
Students give a wrong response.
3
2
1
0
3(b)
Sample answer:
Manipulated variable: The presence of catalyst/ manganese (IV) oxide
Responding variable: rate of reaction// rate of decomposition of hydrogen
peroxide
Constant variable: Concentration and temperature of hydrogen peroxide.
Students able to write all 3 variables correctly
Students able to write 2 variables correctly
Students able to write 1 variable correctly
3
2
1
0
3(c)
Able to state the relationship between the manipulated variable and the responding variable and state the direction.
Sample answer:
When catalyst/ manganese (IV) oxide presents, the rate of decomposition of hydrogen peroxide increases
When catalyst presents, the rate of reaction increases.
Catalyst affects the rate of reaction.
3
2
1
0

19
Q
Answer
Score
3(d)
Able to give complete list of substances and apparatus
Method 1:
Substances:
Hydrogen peroxide, manganese (IV) oxide powder
Apparatus:
Test tube, measuring cylinder, spatula, wooden splinter.
Students able to list down substances and improperly apparatus
Substances:
Apparatus:
Test tube, spatula
Students able to list one of the substance and suitable container
Substances:
Hydrogen peroxide and manganese (IV) oxide powder
Apparatus:
Beaker
3
2
1
0
3(d)
Method 2:
Able to give complete list of substances and apparatus
Substances:
Apparatus:
Conical flask, delivery tube and stopper, burette, basin/ water trough, retort stand with clamp, stopwatch, measuring cylinder, spatula.
Students able to list down substances and improperly apparatus
Substances:
Apparatus:
Conical flask, delivery tube and stopper, burette, basin/ water trough, retort stand with clamp, stopwatch.
Students able to list one of the substance and suitable container
Substances:
Hydrogen peroxide, manganese(IV) oxide powder
Apparatus:
Conical flask, delivery tube and stopper, burette, basin/ water trough
3
2
1

20
Q
Answer
Score
3(e)
Method 1:
Able to list all the steps correctly
Procedure:
1. Measure and pour (2 - 5) cm3 of hydrogen peroxide in a test tube.
2. Add 1 spatula of manganese (IV) powder into the test tube
3. Put a glowing splinter into the test tube.
4. Observe and record the changes on the glowing splinter.
5. Repeat steps 1 to 4 without adding manganese (IV) oxide/ catalyst.
Able to write steps 1, 2, 4, 5 improperly.
Able to write steps 1&2 less correctly.
No response / wrong response.
3
2
1
0
3(e)
Method 2:
Able to list all the steps correctly
Procedure:
1. Fill a basin/ water trough with water.
2. Fulfill a burette with water and invert it in onto water in a basin/ water trough.
3. Clamp the burette by using a retort stand. Record the initial burette reading.
4. Measure and pour (20 - 100) cm3 of hydrogen peroxide in a conical flask.
5. Add 1 spatula of manganese (IV) powder into the conical flask.
6. Close the conical with a stopper which attached to a delivery tube. Immediately start the stopwatch.
7. Observe and record the burette reading at every 30 seconds interval time.
8. Repeat steps 1 to 7 without adding manganese(IV) oxide/ catalyst.
Able to write 7 steps improperly.
3. Clamp the burette by using a retort stand. Record the initial burette reading.
4. Measure and pour of hydrogen peroxide in a conical flask.
5. Add 1 spatula of manganese(IV) powder into the conical flask.
6. Close the conical with a stopper which attached to a delivery tube. Start the stopwatch.
7. Observe and record the burette reading
3
2

21
Able to write at least 6 steps improperly.
3. Measure and pour of hydrogen peroxide in a conical flask.
4. Add 1 spatula of manganese (IV) powder into the conical flask.
5. Close the conical with a stopper which attached to a delivery tube.
6. Observe and record the burette reading
No response / wrong response.
1
0
3(f)
Method 1:
Able to tabulate the data with the following aspects
Sample answer:
Set
Observation
Hydrogen peroxide + manganese(IV) oxide
Hydrogen peroxide only
Sample answer:
Set
With catalyst
Without catalyst
2
1
0
3(f)
Method 2:
Set 1: With catalyst/ manganese(IV) oxide
Time (s)
0
30
60
90
120
Volume of gas (cm3)
Set 2: Without catalyst/ manganese(IV) oxide
Time (s)
0
30
60
90
120
Volume of gas (cm3)
2
1

22
Set
Volume
With catalyst/ manganese(IV) oxide
Without catalyst
0
END OF MARKING SCHEME http://www.chngtuition.blogspot.com

Sbp 2013

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