Spm Trial 2014 Chemistry Qa Kedah SetA
Transcript of Spm Trial 2014 Chemistry Qa Kedah SetA
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MODUL PENINGKATAN PRESTASI TINGKATAN 5
TAHUN 2014
MAJLIS PENGETUA SEKOLAH MALAYSIA(KEDAH)
MODUL A
KIMIA SPM
Kertas 1
Satu jam lima belas minit
JANGAN BUKA MODUL INI SEHINGGA DIBERITAHU
1. Kertas soalan ini adalah dalam dwibahasa.
2. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu.
3. Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini.
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2. Which of the following is not the type of particle?
Antara berikut yang manakah bukan jenis zarah?
A Compound
Sebatian
B Molecule
Molekul
C Atom
Atom
D Ion
Ion
1. Diagram 1 shows the particles arrangement substance X
Rajah 1 menunjukkan susunan zarah bagi bahan X..
Diagram 1
Rajah 1
Which of the following is the physical state of X?
Antara berikut keadaan fizikal X?
A Solid and liquid
Pepejal dan cecair
B Liquid
Cecair
C Solid
Pepejal
D Gas
Gas
3. What is the standard atom is used to determine relative atomic mass?
Apakah atom piawai yang digunakan untuk menentukan jisim atom relatif?
A Hydrogen-1
Hidrogen-1
B Carbon-12
Karbon-12
C Oxygen-16
Oxygen -16
D Nitrogen-14 Nitrogen -14
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4. A molecular formula of a substance shows
Formula molekul sebatian menunjukkan
A formula of a molecule
formula satu molekul bahan
B actual mass of a substance
jisim sebenarnya suatu sebatian
C actual number of atoms of each elements
bilangan sebenarnya atom-atom bagi setiap unsur
D simplest ratio for the number of atoms
nisbah paling ringkas bagi bilangan atom
5 Which of the following pairs of group and name is correct in the Periodic Table?
Antara berikut yang manakah pasangan yang betul bagi kumpulan dan nama di dalam Jadual
Berkala?
Group
Kumpulan
Name
Nama
A1
Alkali earth metal
Logam alkali bumi
B2
Alkali metal
Logam alkali
C
17
Halogen
Halogen
D18
Transition elemant
Unsur peralihan
6 Each elements in the same group of the Periodic Table have
Unsur-unsur dalam kumpulan sama di dalam Jadual Berkala Unsur mempunyai
A similar physical properties.
sifat fizik yang sama.
B different chemical properties. sifat kimia yang berbeza
C equal number of proton in the nucleus of an atom.
bilangan proton yang sama dalam nukleus atomnya.
D equal number of electron in the outermost shell of an atom
bilangan elektron yang sama di petala terIuar atomnya.
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7 Which of the following substances is a covalent compound?
Sebatian manakah yang merupakan sebatian kovalen?
A Magnesium chloride
Magnesium klorida
B Lead(II) chloride
Plumbum(II) klorida
C Calcium oxide
Kalsium oksida
D Karbon dioxide
Karbon dioksida
8 Which of the following compounds has the lowest melting point?
Sebatian manakah yang mempunyai takat lebur yang paling rendah?
A Magnesium chloride
Magnesium klorida
B Sulphur dioxide
Sulfur dioksida
C Iron(III) oxide Ferum(III) oksida
D Lead(II) oxide
Plumbum(II) oksida
9 Which of the following is not the function electrolysis in daily lives?
Antara yang berikut, yang manakah bukan fungsi elektrolisis dalam kehidupan seharian?
A Prevention of corrosion Mencegah kakisan
B Generation of electrical energy
Penjanaan tenaga elektrik
C Electroplating metals
Penyaduran logam
D Extraction of metals
Pengekstrakan logam
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10 Metal P displaced zinc from zinc nitrate solution but does not displace magnesium from
magnesium nitrate solution. Metal P could be
Logam P menyesarkan zink daripada larutan zink sulfat tetapi tidak menyesarkan magnesium
daripada larutan magnesium sulfat. Logam P mungkin
A Lead
Plumbum
B Copper
Kuprum
C Calsium
Kalsium
D Aluminium
Aluminium
11 Which of the following is not the property of an acid?
Antara berikut yang manakah bukan sifat satu asid?
A It conducts electricity
Mengkonduksikan elektrik
B It turns red litmus paper to blue
Menukarkan kertas litmus merah kepada biru
C It dissolve in water to produce hydrogen ion
Larut dalam air menghasilkan ion hidrogen
D It reacts with alkali to produce salt and water Bertindak balas dengan alkali untuk menghasilkan garam dan air
12 Which of the following reactants will produce salt and water only?
Antara berikut, bahan tindak balas yang manakah akan menghasilkan garam dan air
sahaja?
A Copper(II) oxide and sulphuric acid
Kuprum(II) oksida dan asid sulfurik
B Lead(II) chloride and sulphuric acid
Plumbum(II) klorida dan asid sulfurik
C Sodium and hydrochloric acid
Natrium dan asid hidroklorik
D Magnesium and nitric acid
Magnesium dan asid nitrik
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13 The following equation shows the reaction to produce a blue solution.
Persamaan berikut menunjukkan tindak balas untuk menghasilkan larutan biru.
H2S04 + X sulphate salt + H20
garam sulfat
What is X? Apakah bahan X?
A Potassium hydroxide
Kalium hidroksida
B Lead(II) oxide
Plumbum( II) oksida
C Barium hydroxide
Barium hidroksida
D Copper(II) oxide
Kuprum(II) oksida
14 Which alloy contains a mixture of copper and tin?
Aloi manakah yang mengandungi campuran kuprum dan timah?
A Steel
Keluli
B Pewter
Piuter
C Bronze
Gangsa
D Brass Loyang
15 The following information is about a process X.
Maklumat yang berikut adalah tentang proses X.
Based on the information, what is prosess X?
Berdasarkan maklumat tersebut, apakah proses X?
AHydrogenation
Penghidrogenan
BOstwald
Ostwald
CContact
Sentuh
D Haber Haber
Using iron powder as the catalyst
The product of the reaction is alkaline.
Menggunakan serbuk besi sebagai mangkin
Hasil tindak balas bersifat alkali.
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16 The following chemical equation represents the reaction between calcium
carbonate, CaC03 and hydrochloric acid, HC1.
Persamaan kimia berikut mewakili tindak balas antara kalsium karbonat, CaC03
dan asid hidroklorik, HC1.
CaCO3 + HCl CaCl2 + H2O + CO2
Which changes is the best to be used to determine the rate of reaction?
Perubahan manakah paling baik digunakan untuk menentukan kadar tindak balas?
A Mass of calcium carbonate per unit time
Jisim kalsium karbonat per unit masa
B Volume of carbon dioxide released per unit time
Isipadu karbon dioksida dibebaskan per unit masa
C Colour of the solution per unit time
Warna larutan per unit masa.
D Concentration of calcium chloride produced per unit time
Kepekatan kalsium klorida terhasil per unit masa
17 The collision theory states that for a chemical reaction to occur, the reacting
particles must…
Teori perlanggaran menyatakan bahawa bagi tindak balas kimia boleh berlaku,
zarah- zarah yang bertindak balas mesti…
A possess energy which is less than activation energy.
mengandungi tenaga yang kurang dari tenaga pengaktifan.
B collide in the correct orientation.
berlanggar pada orientasi yang betul .
C have high kinetic energy.
mempunyai tenaga kinetik yang tinggi.
D move
bergerak
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18 Rajah 2 menunjukkan suatu gambar rajah profil tenaga.
Diagram 2 shows an energy profile diagram.
Diagram 2
Rajah 2
Berdasarkan rajah 2, apakah jumlah tenaga pengaktifan bagi tindak balas di atas?
Based on the diagram, what is the amount of activation energy?
A (X - Y) kj mol-1
B (Y - X ) kj mol-1
C X kj mol-l
D Y kj mol-1
19 Which of the following is the general formula of an unsaturated hydrocarbon?
Manakah formula am berikut adalah satu hidrokarbon tak tepu?
A CnH2n+1COOH
B CnH2n+1OHC CnH2n+2
D CnH2n
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20 The following equation shows the combustion reaction of substance P in excess
oxygen.
Persamaan berikut menunjukkan tindakbalas pembakaran sebatian P dalam
oksigen belebihan.
P + O2 CO2 + H2O
Substance P is probably ...
Sebatian P mungkin adalah ...
A Carbon
Karbon
B Butanol
Butanol
C Polivinil chloride
Polivinil klorida
D Hydrogen gas
Gas hidrogen
21. Diagram 3 shows the structural formula of an ethanoic acid.
Rajah 3 menunjukkan formula structural bagi asid etanoik.
Diagram 3
Rajah 3
The empirical formula of etanoic acid is
Formula empirik bagi asid etanoik ialah
A CHO2
B CH 2O
C C 2 H 402
D C 3 H 6 O3
H O| ||
H – C – C – OH
|
H
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22 Diagram 4 shows the Periodic Table.
Rajah 4 menunjukkan Jadual Berkala Unsur.
Diagram 4Which of the following element has the greatest ability to release electron(s)?
Antara yang berikut, manakah unsur yang mempunyai keupayaan yang paling
tinggi untuk melepaskan elekron?
1 2 13 14 15 16 17 18
ST
UV
A S
B T
C U
D V
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23 Diagram 5 shows two elements of Period 3 in the Periodic Table.
Rajah 5 menunjukkan 2 unsur bagi Kala 3 dalam Jadual Berkala.
Diagram 5
Atom Y is smaller than atom X because
Atom Y lebih kecil daripada atom X kerana
A the nucleon number of atom Y is greater.
nombor nukleon atom Y lebih besar.
B atom Y has more valence electrons.
atom Y mempunyai lebih banyak elektron valens.
C atom Y is a halogen.
Atom Y ialah satu halogen.
D the proton number of atom Y is greater.
nombor proton atom Y lebih besar.
24 Diagram 6 shows symbol of an element T.
Rajah 6 menunjukkan simbol unsur T.
Diagram 6
What is the electron arrangement of ion T?
Apakah susunan electron bagi ion T?
A 2.8
B 2.8.2
C 2.8.8
D 2.8.8.8
X Y
T 24
12
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25 Table 1 belows shows the proton number of elements X and Y.
Jadual 1 menunjukkan nombor proton unsur X dan Y.
Element
Unsur X Y
Proton number
Nombor proton 6 8
Table 1
What type of bond and the chemical formula of the compound formed between X
and Y?
Apakah jenis ikatan dan formula kimia bagi sebatian yang terbentuk antara atom X
dan Y?
Type of bond
Jenis ikatan
Chemical formula
Formula kimia
A Ion
Ion
YX2
B Ion
Ion
XY2
C Covalent
Kovalen
XY2
D Covalent Kovalen
YX2
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26 Diagram 7 shows the apparatus set-up used for the purification of copper metal
through electrolysis.
Rajah 7 menunujukkan susunan radas yang digunakan untuk penulenan logam
kuprum melalui elektrolisis.
Diagram 7
Which of the following substances is suitable to be used as electrode and electrolyte.
Manakah antara bahan-bahan berikut yang sesuai digunakan sebagai elektrod dan
elektrolit.
Electrode X
Elektrod X
Electrode Y
Elektrod Y
Solution Z
Larutan Z
A Pure copper
Kuprum tulen
Impure copper
Kuprum tak tulen
Copper(II) sulphate
Kuprum(II) sulfatB Impure copper
Kuprum tak tulen
Pure copper
Kuprum tulen
Copper(II) nitrate
Kuprum(II) nitrat
C Pure copper
Kuprum tulen
Impure copper
Kuprum tak tulen
Copper(II) carbonate
Kuprum(II) karbonat
D Impure copper
Kuprum tak tulen
Pure copper
Kuprum tulen
Copper(II) carbonate
Kuprum(II) karbonat
X Y
Solution ZLarutan Z
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27 Table 2 shows the observations of electrolysis using carbon electrode and electrolyte
W.
Jadual 2 menunjukkan pemerhatian bagi elektrolisis menggunakan elektrod karbon
dan elektrolit W.
Electrode
Elektrod
Observation
Pemerhatian
Anode
Anod
A greenish-yellow gas released
Gas berwarna kuning kehijauan terbebas
Cathode
Katod
A colorless gas which burns with a ‘pop’ sound is released
Gas yang tidak berwarna dan terbakar dengan bunyi pop terbebas
Table 2
The electrolyte W maybe
Elektrolit W itu mungkin
A Potassium iodide solution
Larutan kalium iodida
B Copper(II) chloride solution
Larutan kuprum(II) klorida
C Potassium chloride solution
Larutan kalium klorida
D Magnesium bromide solution
Larutan magnesium bromide
28 Table 3 shows aqueous solutions P, Q, R and S with their pH values.
Jadual 3 menunjukkan larutan akueus P, Q, R, dan S dengan nilai pHnya
Table 3
Aqueous solution
Larutan akueus L M N O
pH value Nilai pH
6 7 8 9
Which of the solution will react with calcium carbonate to release carbon dioxide?
Larutan manakah akan bertindak balas dengan kalsium karbonat untuk
membebaskan karbon dioksida?
A L
B M
C ND O
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29 Glacial ethanoic acid does not change blue litmus paper to red.
The litmus paper turns red when added with
Asid etanoik glacial tidak menukarkan kertas litmus biru ke merah. Kertas litmus
bertukar kepada merah apabila ditambah dengan
A propanol
propanol
B ethyl ethanoate
etil etanoat
C chloroform
klorofom
D water
air
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30 Diagram 8 shows chemical tests of compound G.
Rajah 8 menunjukkan ujian kimia bagi sebatian G.
Diagram 8
G is a mixture of two types of salts. Which of the following is found in G?
G ialah campuran dua jenis garam. Antara berikut manakah terdapat dalam G?
A Silver sulphate and copper(II) carbonate
Argentum sulfat dan kuprum(II) karbonat
B Lead(II) nitrate and zinc carbonate
Plumbum(II) nitrat dan zink karbonat
C Lead(II) nitrate and aluminium nitrate
Plumbum(II) nitrat dan aluminium nitrat
D Magnesium sulphate and lead(II) carbonate
Magnesium sulfat dan plumbum(II) karbonat
Added with ammonia solution
until excess
Tambah larutan ammoniaberlebihan
G
Solution Larutan
White precipitate
dissolve
Mendakan putih
larut
Precipitation
Mendakan
Added with dilute hydrochloric acid and
filteredTambah dengan asid hidroklorik dan
dituraskan
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31 The diagram 9 shows part of formula of P.
Rajah 9 menunjukkan sebahagian daripada formula bagi bahan P.
Diagram 9
Which of the following is the monomer of P?
Antara berikut yang manakah monomer bagi P?
A CHCH=CH2
B CHCH=CH3
C CHCH3=CH2
D CH3=CH3
32 The following equation represents the reaction between zinc and hydrochloric acid.
Persamaan berikut mewakili tindak balas antara kasium karbonat dan asid
hidroklorik.
Predict the changes of the rate of reaction if the hydrochloric acid is replaced with
sulphuric acid ?
Ramalkan perubahan yang berlaku pada kadar tindak balas jika asid hidroklorik
diganti dengan asid sulfurik ?
A Increase two times
Bertambah dua kali ganda
B Decrease two times
Berkurang dua kali ganda
C Remain unchange
Kekal tidak berubah
D Increase a few time
Bertambah beberapa kali
Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g)
H H H H H H H
C C C C C C C
CH3 H CH3 H CH3 H CH3
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33 The following equation shows the reaction between excess zinc powder and dilute
hydrochloric acid:
Persamaan berikut menunjukkan tindak balas antara serbuk zink berlebihan dengan
asid hidroklorik cair:
Zn + 2HCl ZnCl2 + H2
Which of the following graphs represents the volume of hydrogen gas ,V released
against time , t?
Antara graf berikut yang manakah mewakili isipadu gas hidrogen ,V yang
dibebaskan melawan masa,t?
A C
B D
/cm3 /cm3
/cm3 /cm3
/s
/s
/s
/s
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34 Diagram 10 shows the structural formula of a compound Q.
Rajah 10 menunjukkan formula struktur bagi sebatian Q.
Diagram 10
What is the name of compound Q?
Apakah nama sebatian Q?
A Ethyl methanoate
Etil metanoat
B Ethyl ethanoate
Etil etanoat
C Methyl ethanoate
Metil etanoat
D Methyl propanoate
Metil propanoat
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35 The following equation represents the reaction between propene and chlorine.
Persamaan berikut mewakili tindak balas antara propena dan klorin.
Which of the following is the structural formula for S?
Antara berikut yang manakah adalah formula struktur bagi S?
A
B
C
D
Propene + Cl2 → S
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36. Diagram 11 shows the apparatus set-up for heating carbonate salt.
Rajah 11 menunjukkan susunan radas pemanasan garam karbonat.
Which of the following represents the reaction?
Antara berikut manakah yang mewakili tindak balas tersebut?
A CaCO3 → Ca+ CO2
B CaCO3 → CaO + CO2 +H2O
C CaCO3 → CaO + CO2
D CaCO3 → Ca(OH)2 + CO2 + H2O
37. Which of the following gases contains 0.4 mol of atoms at room temperature and
pressure?
[1 mol of gas occupies the volume of 24 dm3 at room temperature and pressure] Antara gas berikut, yang manakah mengandungi 0.4 mol atom pada suhu dan tekanan
bilik?[1 mol gas menempati isipadu sebanyak 24 dm3 pada suhu dan tekanan bilik]
A 4.8 dm3 He
B 4.8 dm3 CO2
C 4.8 dm3 S03
D 4.8 dm3 H2
Carbonate salt
Garam karbonat limewater
air kapur
heated
panaskan
Diagram 11
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38 Atom R reacts with atom W to form a compound with a formula RW4.
Given that the relative atomic mass of R is 12 and the relative atomic mass of W is
35.5.
Find the relative molecular mass of the compound formed by R and W.
Atom R bertindakbalas dengan atom W untuk menghasilkan sebatian dengan
formula RW4.
Diberi jisim atom relatif R ialah 12 manakala jisim atom relatif W ialah 35.5.
Tentukan jisim molekul relative bagi sebatian yang terbentuk di antara R dan W.
A 154.0
B 130.5
C 95.0
D 47.5
39 Element X has 7 valence electrons and exist as diatomic molecule.
Which of the following chemical reactions represents when element X react with
sodium?
Suatu unsur X mempunyai elektron valens7 dan wujud sebagai molekul dwiatom.
Antara berikut, yang manakah persamaan kimia yang mewakili tindak balas antara
unsur X dengan natrium?
A Na(p) + X(g) → NaX(p)
B 2Na(p) + X(g) → Na2X(p)
C 4Na(p) + 3X2(g) → 2Na2X3(p)
D 2Na(p) + X2(g) → 2NaX(p)
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40 Table 4 shows the information about three voltaic cells.
Jadual 4 menunjukkan maklumat tentang tiga sel voltan.
Pairs of metals
Pasangan logam
Terminal positif
Positive terminal
Potential difference / V
Beza keupayaan / V
W, Y Z 3.1
X, Y Y 0.3
W, X X 1.8
Table 4
What is the potential difference of a voltaic cell using metal Y and Z as electrodes?
Apakah beza keupayaan bagi sel voltan yang menggunakan logam Y dan Z sebagai
elektrod?
A 1.0 V
B 1.3 V
C 2.1 V
D 2.8 V
41 0.1 mol sulphuric acid neutralizes completely 0.2 mol of an alkali which has the
formula M(OH)n.
What is the value of n in the formula?0.1 mol asid sulfurik meneutralkan dengan lengkap 0.2 mol suatu alkali yang
mempunyai formula M(OH)n.
Apakah nilai untuk n dalam formula ini?
A 1
B 2
C 3
D 4
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42 25 cm3 of 0.5 mol dm-3 potassium hydroxide, KOH, is titrated with hydrochloric
acid.
What is the volume of 1.0 mol dm-3 hydrochloric acid required to neutralise the
alkaline solution?
25 cm3 kalsium hidroksida, KOH , 0.5 mol dm-3 dititratkan dengan asid hidroklorik.
Apakah isi padu asid hidroklorik 1.0 mol dm-3 yang diperlukan untuk meneutralkan
larulan alkali tersebut?
A 10 .0 cm3
B 12.5 cm3
C 25.0 cm3
D 50.0 cm3
43 4.5 g of calcium carbonate powder is reacted with excess dilute hydrochloric acid.
What is the mass of calcium chloride formed in the reaction?
[ Relative atomic mass : Ca,40; C,12; O,16; H,1; Cl,35.5]
4.5 g serbuk kalsium karbonat bertindak balas dengan asid hidroklorik secara
berlebihan. Berapakah jisim kalsium klorida yang terbentuk dalam tindak balas ini?
[ Jisim Atom Relatif : Ca,40; C,12; O,16; H,1; Cl,35.5]
A 2.498 g
B 3.398 g
C 4.995 g
D 9.990 g
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44 Table 5 shows the results of two chemical tests on a salt solution
Jadual 5 menunjukkan dua keputusan ujian kimia terhadap satu larutan garam
Test
Ujian
Procedure
Kaedah
Observation
Pemerhatian
I Excess sodium
hydroxide solution is
added.
Larutan natrium
hidroksida ditambah
secara berlebihan
A white precipitate is formed. It
dissolves in excess sodium hydroxide
solution.
Mendakan putih terbentuk.Mendakan
putih larut dalam larutan natrium
hidroksida berlebihan
II Excess ammonia
solution is added
Larutan ammonia
ditambah secara
berlebihan
A white precipitate is formed. It does
not dissolve in excess ammonia
solution.
Mendakan putih terbentuk.Mendakan
putih tidak larut dalam larutan
ammonia berlebihan
Table 5
Based on the information. There are two cations present in the solution.How to confirm the cations in the solution?
Berdasarkan maklumat tersebut, terdapat dua kation hadir dalam larutan itu.
Bagaimanakah untuk menentusahkan kation-kation itu?
A Add hydrochloric acid and followed by barium chloride solution
Tambah asid hidroklorik dan diikuti dengan larutan barium klorida.
B Add nitric acid and followed by silver nitrate solution
Tambah asid nitrik dan diikuti dengan larutan argentum nitrat
C Add potassium iodide solution
Tambah larutan kalium iodida
D Add Nessler reagent
Tambah reagen Nessler
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45 The following are the formulae of several fertilisers.
Berikut adalah formula bagi beberapa jenis baja.
Which of the fertilisers is the best to use?
(Relative atomic mass: C;12, N;14, O;16, H;1, P;31, S;32)
Yang manakah adalah baja paling baik untuk digunakan?
(Jisim atom relatif: C;12,N;14, O;16, H;1, P;31, S;32)
A Urea
Urea
B Ammonium nitrate
Ammonium nitrat
C Ammonium phosphate
Ammonium fosfat
D Ammonium sulphate
Ammonium sulfat
Urea, CO(NH2)2 Ammonium nitrate,
ammonium nitrat, NH4 N03
Ammonium phosphate, ammonium fosfat (NH4 )2 HPO4
Ammonium sulphate,ammonium sulfat , NH4SO4
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46 Diagram 12 shows profile diagram for the reaction P + Q S.
Rajah 12menunjukkan rajah profil untuk tindak balas P + Q S.
What is the activation energy for this reaction?
Apakah tenaga pengaktifan untuk tindak balas in?
A 130 kJ mol-1
B 350 kJ mol-1
C 480 kJ mol-1
D 830 kJ mol-1
130 kJ
Diagram 12
P + Q
350 kJ
S
Energy
Tenaga
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47 Table 6 shows the total volume of gas collected at regular intervals in a reaction.
Jadual 6 menunjukkan jumlah isipadu gas yang terkumpul pada sela masa tertentu
dalam suatu tindak balas.
Table 6
Time/s
Masa/s
0 30 60 90 120 150 180 210
Volume of gas / cm³
Isipadu gas / cm³
0 2.0 3.7 5.2 6.4 7.3 8.6 8.6
What is the average rate of reaction in the second minute?
Berapakah kadar tindak balas purata dalam minit kedua?
A 0.040 cm³ s 1
B 0.045 cm³ s 1
C 0.053 cm³ s 1
D 0.062 cm³ s 1
48 If you want to cook 50 eggs within a short time, which is the most suitable method?
Sekiranya anda ingin memasak 50 biji telur dalam masa yang singkat, apakah
langkah paling sesuai di lakukan?
A Boil the eggs in a pan
merebus telur dalam kuali leper
B Boil the eggs in pressure cooker
Merebus telur dalam periuk tekanan
C Steam the eggs in a steamer
Mengukus telur dalam pengukusD Fry the eggs in a wok
Menggoreng telur dalam kuali
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49 The following equation represents the complete combustion of a hydrocarbon.
Persamaan berikut mewakili pembakaran lengkap bagi satu hidrokarbon.
C4H8 + xO2 yCO2 + 4H2O
Calculate the volume of carbon dioxide gas produced when 2.8 g of hydrocarbon is
burnt completely in air at standard temperature and pressure.
[Relative atomic mass: H=1, C=12, O=16; Molar volume of gas = 22.4 dm3 mol-1 at
standard temperature and pressure]
Hitungkan isipadu gas karbon dioksida yang terhasil apabila 2.8 g hidrokarbon
dibakar dengan lengkap di dalam udara pada suhu dan tekanan piawai.
[Jism atom relatif : H=1, C=12, O=16;isipadu molar gas = 22.4 dm3 mol -1 pada
suhu dan tekanan piawai]
A 2.24 dm3
B 1.12 dm3
C 4.48 dm3
D 8.96 dm3
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50 Diagram 13 shows a car tyre is made from vulcanized rubber.
Rajah 16 menunjukkan tayar kereta diperbuat daripada getah tervulkan.
Diagram 13
What property of vulcanized rubber makes it suitable to be used for making these
car tyres?
Apakah sifat getah tervulkan yang menyebabkannya sesuai digunakan dalam
pembuatan tayar kereta?
A It is torn easily when it is stretched
Ia mudah koyak apabila diregangkan
B It can take the tremendous stress and strength
Ia boleh menerima tegangan yang terlalu besar dan kuat
C It is oxidized easily and not stickyIa mudah dioksidakan dan tidak melekit
D It is strength and maintaining their elasticity
Ia kuat dan mengekalkan keanjalan
END OF QUESTIONS PAPER
KERTAS SOALAN TAMAT
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INFORMATION FOR CANDIDATES
MAKLUMAT UNTUK CALON
1. This question paper consists of 50 questions.
Kertas soalan ini mengandungi 50 soalan.
2. Answer all questions.
Jawab semua soalan.
3. Each question is followed by four alternative answers. A. B, C or D. For each
question, choose one answer only. Blacken your answer on the objective answer sheet
provided.
Tiap-tiap soalan diikuti oleh empat pilihan jawapan, iaitu A. B. C dan I). Bagi setiap soalan, pilih satu jawapan sahaja. Hitamkan jawapan anda pada kertas jawapan
objektif yang disediakan.
4. If you wish to change your answer, erase the blackened mark that you have made.
Then blacken the new answer.
Jika anda hendak menukar jawapan, padamkan tanda yang telah dibuat. Kemudian
hitamkan jawapan yang baru.
5. The diagrams in the questions provided are not drawn to scale unless stated.
Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.
6. You may use a scientific calculator.
Anda dibenarkan menggunakan kalkulator saintifik.
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MODUL PENINGKATAN PRESTASI TINGKATAN 5
TAHUN 2014
MAJLIS PENGETUA SEKOLAH MALAYSIA (KEDAH)
MODUL A
KIMIA SPM
Kertas 2
Dua jam tiga puluh minit
JANGAN BUKA MODUL INI SEHINGGA DIBERITAHU
1. Tulis nombor kad pengenalan dan
angka giliran anda pada petak yang
disediakan. 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.
Untuk Kegunaan Pemeriksa
Kod Pemeriksa:
Bahagian SoalanMarkah
Penuh
Markah
Diperoleh
1 9
2 9
A 3 11
4 10
5 10
6 11
B 7 20
8 20
C9 20
10 20
Jumlah
Kertas soalan ini mengandungi 26 halaman bercetak..
[Lihat halaman sebelah
SULIT
NAMA:…………………………………………………………………………………….. TINGKATAN:…………………………..
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Section A
Bahagian A
[60 marks]
[60 markah]
Answer all questions in this section.
Jawab semua soalan dalam bahagian ini.
1 Diagram 1 shows the symbols of atoms for element P, Q, R and S.
Rajah 1 menunjukkan simbol-simbol atom bagi unsur P, Q, R dan S.
Diagram 1
Rajah 1
(a) (i) What is meant by proton number?
Apakah yang dimaksudkan dengan nombor proton?
…………………………………………………………………………………………
[ 1 mark ]
(ii) What is the proton number of atom Q?
Apakah nombor proton untuk atom Q?
…………………………………………………………………………………………
[ 1 mark ]
(b) (i) Write the electron arrangement for atom P.
Tuliskan susunan elektron bagi atom P.
…………………………………………………………………………………………
[ 1 mark ]
(ii) State one chemical property of atom P.
Nyatakan satu sifat kimia bagi atom P.
…………………………………………………………………………………………
[ 1 mark ]
2311P 35
17Q 3717R 20
10S
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(c) Which atoms are isotopes? Explain why.
Atom-atom manakah adalah isotop? Terangkan mengapa.
……………………………………………………………………………………………….
………………………………………………………………………………………………
[ 2 marks]
(d) (i) Draw the electron arrangement of atom S.
Lukiskan susunan elektron bagi atom S.
[ 2 mark]
(ii) State one use of element S.
Nyatakan satu kegunaan unsur S.
……………………………………………………………………………………….. [ 1 mark]
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2 Diagram 2.1 shows parts of the Periodic Table of Elements. A, B, D ,E and G do not
represent the actual symbols of the elements.
Rajah 2.1 menunjukkan sebahagian daripada Jadual Berkala Unsur. A, B, C, D dan E
tidak mewakili simbol sebenar unsur-unsur berkenaan.
A B D
G
E
Diagram 2.1
Rajah 2.1
Using the letters in diagram 2.1, answer the following question;
Dengan menggunakan huruf-huruf dalam rajah 2.1, jawab soalan-soalan berikut;
(a) Which element is chemically inert? Give a reasons.
Unsur yang manakah lengai dari segi kimia? Berikan sebab.
……………………………………………………………………………………..
…………………………………………………………………………………….. [ 2 marks ]
(b) Which element react vigorously with water?
Unsur yang manakah bertindak balas cergas dengan air?
……………………………………………………………………………………
[ 1 mark ]
(c) Flourine has a proton number of 9. Which element shows similar chemical properties to flourine?
Nombor proton suatu unsur florin ialah 9. Unsur yang manakah menunjukkan
sifat kimia sama dengan unsur florin?
………………………………………………………………………………….. [ 1 mark ]
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(d) Arrange the elements A, B. D, E and G according to the ascending order of atomic
sizes.
Susun unsur-unsur A, B, D, E dan G berdasarkan susunan menaik saiz atom.
………………………………………………………………………………………
[ 1 mark ]
(fe Diagram 2.2 shows the set-up of the apparatus to investigate the reaction between
element A with oxygen gas.
Rajah 2.2 menunjukkan susunan radas untuk mengkaji tindak balas antara unsur
A dengan gas oksigen.
Diagram 2.2 Rajah 2.2
(i) State one precautionary step that must be taken when carrying out this
experiment.
Nyatakan satu langkah berjaga-jaga yang perlu diambil ketika
menjalankan eksperimen ini.
……………………………………………………………………………….
[ 1 mark ]
(ii) Write the chemical equation for the reaction.
Tuliskan persamaan kimia untuk tindak balas tersebut.
………………………………………………………………………………. [ 1 mark ]
Gas jar spoonSudu balang gas
Gas jar cover Penutup balang gas
Gas jar Balang gas
Oxygen gasGas oksigen
Element AUnsur A
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(iii) Calculate the mass of product formed when 1 mole of A reacts completely
with oxygen.
Hitungkan jisim hasil yang terbentuk bila 1 mol A bertindak lengkap
dengan oksigen.
[ Relative atomic mass: A = 7; O = 16 ]
[ Jisim atom relatif : A= 7; O = 16 ]
[ 2 marks ]
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3 Table 3 shows the compositions of four types of manufactured substances in industry.
Jadual 3 menunjukkan komposisi bagi empat bahan buatan dalam industri.
Types
Jenis
Examples
Contoh
Compositions
Komposisi
Glass
Kaca
Borosilicate
Borosilikat
Silicon dioxide, sodium oxide, calcium oxide and X.
Silikon dioksida, natrium oksida, kalsium oksida dan X .
Polymer
PolimerZ
Vinyl chloride
Vinil klorida
Alloy
Aloi
Bronze
Gangsa
Copper and tin
Kuprum dan tin
Composite
material
Bahan
komposit
W
Concrete (cement, sand and small pebbles) and steel
Konkrit (simen, pasir dan batu kecil) dan keluli
Table 3
(a) X is one of the composition in borosilicate glass. What is X?
X adalah salah satu komposisi dalam kaca borosilikat. Apakah X ?
………………………………………………………………………………………………
[1 mark]
(b) Explain why bronze is harder than pure copper.
Terangkan mengapa gangsa lebih keras daripada kuprum tulen.
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
[ 2 marks]
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(c) (i) Diagram 3 shows a part of structural formula of compound Z.
Rajah 3 menunjukkan sebahagian formula struktur bagi sebatian Z.
H Cl H Cl H Cl
C C C C C C
H H H H H H
Diagram 3
Rajah 3
Draw the structural formula of monomer of compound Z.
Lukiskan formula struktur bagi sebatian Z.
1 mark ]
(ii) Compound Z is often used as a water pipe. State one advantage of this type
of pipe as compared to metal pipes.
Sebatian Z sering digunakan sebagai paip air. Berikan satu kebaikan bahan
ini sebagai paip berbanding dengan paip logam.
……………………………………………………………………………
[1 mark ]
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(d) W can withstand high pressure and can support very heavy loads.
What is W?
W boleh tahan terhadap tekanan yang tinggi dan boleh menampung beban yang
sangat berat. Apakah W?
………………………………………………………………………………….. [1 mark ]
(e) Ammonium sulphate is a type of synthetic fertilizers. It can be prepared by the
reactions between ammonia solution and sulphuric acid.
Ammonium sulfat adalah sejenis baja sintetik. Ia boleh disediakan melalui tindak
balas antara larutan ammonia dan asid sulfurik.
(i) Write the chemical equation for the preparation of ammonium sulphate
fertilizer.
Tuliskan persamaan kimia bagi penyediaan baja ammonium sulfat.
………………………………………………………………………………
[2 mark ]
(ii) Urea, CO(NH2)2 is another example of synthetic fertilizers. Between urea
and ammonium sulphate, which one is better for the growth of plants?
Prove it.
[Relative atomic mass: H = 1; C = 12; N = 14; O = 16; S = 32]
Urea, CO(NH 2 )2 ialah satu contoh baja sintetik. Di antara urea dan
ammonium sulfat, yang manakah lebih baik bagi pertumbuhan tumbuhan?
Buktikan.
[ Jisim atom relatif: H = 1; C = 12; N = 14; O = 16; S = 32]
[ 3 marks]
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4 Diagram 4 shows two types of chemical cells.
Rajah 4 menunjukkan dua jenis sel kimia.
Diagram 4
Rajah 4
(a) State the energy change in
Nyatakan perubahan tenaga dalam
(i) Cell A :
Sel A:…………………………………………………………………….
(ii) Cell B:
Sel B:……………………………………………………………………..
[ 2 marks]
(b) Mark on Diagram 4, the flow of electrons on cell A, using arrows.
Tandakan pada Rajah 4, aliran elektron pada sel A dengan menggunakan anak
panah.
[ 1 mark]
(c) Write the ionic equation for the reaction that occurred in cell A.
Tulis persamaan ion untuk tindak balas yang berlaku dalam sel A.
……………………………………………………………………………………
[ 2 marks]
Zinc
zink
Zinc sulphate
Zink sulfat
copper
kuprum
Copper(II) sulphate
Kuprum(II) sulfat
CELL A
SEL A
CELL B
SEL B
V
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(d) State the changes that can be observed at
Nyatakan perubahan yang diperhatikan pada
(i) cathode of cell A:
katod sel A:
………………………………………………………………………………
(ii) anode of cell B:
anod sel B:
………………………………………………………………………………
[ 2 marks]
(e) (i) State the observation of the electrolyte in cell B.
Nyatakan pemerhatian bagi elektrolit di dalam sel B.
…………………………………………………………………………………
[ 1 mark]
(ii) Explain your answer.Terangkan jawapan anda.
………………………………………………………………………………
…………………………………………………………………………………
[ 2 marks]
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5 Diagram 5.1 shows the apparatus set-up of experiment to investigate the effect of heat
on lead(II) carbonate salt.
Rajah 5.1 menunjukkan susunan radas bagi eksperimen yang dijalankan untuk mengkaji
kesan haba ke atas garam plumbum(II) karbonat.
Diagram 5.1
Rajah 5.1
(a) (i) Lead(II) carbonate is an insoluble salt.
What is the meaning of salt?
Plumbum(II) karbonat adalah sejenis garam tak terlarutkan.
Apakah maksud garam?
………………………………………………………………………………
………………………………………………………………………………… [ 1 mark]
(ii) Tick (√) in the box below for the observations that occur in the above
experiment.
Tandakan ( √ ) dalam kotak dibawah bagi mewakili pemerhatian yang
berlaku dalam eksperimen di atas.
White solid turns brown when hot and yellow when cold
Pepejal putih bertukar perang semasa panas dan kuning semasa sejuk
Black solid turns brown
Pepejal hitam bertukar perang
Lime water remain unchanged
Air kapur tidak berubah
Lime water turns chalky
Air kapur menjadi keruh
[2 marks]
Heat
Panaskan
Lime water
Air kapur
PbCO3
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(b) Diagram 5.2 shows the preparation of lead(II) carbonate salt.
Rajah 5.2 menunjukkan penyediaan garam plumbum(II) karbonat.
Diagram 5.2
Rajah 5.2
Based on diagram 5.2 answer the following questions.
Berdasarkan rajah 5.2, jawab soalan-soalan berikut.
(i) Write a balanced chemical equation for above reaction.
Tuliskan persamaan kimia yang seimbang bagi tindak balas di atas.
………………………………………………………………………………
[2 marks]
(ii) Name the type of reaction that occur.
Namakan jenis tindakbalas yang berlaku.
…………………………………………………………………………………………..
[1 mark]
Sodium carbonate solution
Larutan natrium karbonat
Solid lead(II) carbonate
Pepejal plumbum(II) karbonat
Lead(II) nitrate solution Larutan plumbum(II) nitrat Sodium nitrate solution
Larutan natrium nitrat
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(iii) Describe how to obtain the solid lead(II) carbonate from the mixture of the
solutions.
Terangkan bagaimana mendapatkan pepejal plumbum(II) karbonat dari
campuran larutan tersebut.
………………………………………………………………………………………
………………………………………………………………………………………
[2 marks]
(c) Lead(II) nitrate contains lead(II) ion and nitrate ion.
Describe a chemical test to verify the presence of lead(II) ion.
Plumbum(II) nitrat mengandungi ion plumbum(II) dan ion nitrat.
Huraikan satu ujian kimia untuk menentusahkan kehadiran ion plumbum(II).
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
[2 marks]
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6 Diagram 6 shows the conversion of but-1-ene to hydrocarbon Y through process X at
180 °C with the presence of nickel as a catalyst.
Rajah 6 menunjukkan pertukaran but -1-ena kepada hidrokarbon Y melalui proses X
pada 180 °C dengan kehadiran nikel sebagai mangkin.
H H H H
Diagram 6
Rajah 6
(a) Name process X.
Namakan proses X.
………………………………………………………………………………………
[1 mark ]
(b) Write the chemical equation to represent process X.
Tulis persamaan kimia untuk mewakili proses X.
……………………………………………………………………………………. [1 mark ]
(c) Describe one chemical test to differentiate but-1-ene and hydrocarbon Y.
Huraikan satu ujian kimia bagi membezakan but-1-ena dan hidrokarbon Y.
……………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
[3 marks]
C CCCH H
HH
H
H
H
HHH
H H
H
H
C C CC
Process X
Proses X
But-1-eneHydrocarbon Y Hidrokarbon Y
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(d) 29 g of hidrokarbon Y is completely burnt in oxygen as in the equation below.
29 g hidrokarbon Y terbakar dengan lengkap dalam oksigen seperti dalam
persamaan di bawah.
C4H10 +
2
13O2 4CO2 + 5H2O
Calculate the mass of carbon dioxide gas produced .
Hitung isipadu gas karbon dioksida yang terhasil.
[Relative atomic mass: C = 12, O = 16, H = 1]
[ Jisim atom relatif : C = 12, O = 16, H = 1]
[3 marks]
(e) Isomerism is the phenomenon where a compound has the same molecular formula
but different structural formula. Butene has three isomers.
Draw all the isomers of butene.
Isomerism ialah fenomena di mana suatu sebatian mempunya formula molekul
yang sama tetapi formula struktur yang berbeza. Butena mempunyai tiga isomer.
Lukis semua isomer bagi butena.
[3 marks]
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Section B
Bahagian B
[20 marks]
[20 markah]
Answer any one question from this section
Jawab mana-mana satu soalan daripada bahagian ini.
7 (a) Table 7 shows the pH for solutions of acid P and acid Q with the same
concentration.
Jadual 7 menunjukkan pH bagi larutan asid P dan asid Q dengan kepekatan sama.
Acid
Asid P Q
pH value
Nilai pH2 6
Table 7
Jadual 7
By using one example of acid P and acid Q each, explain why the pH values of the
acids are different.
Dengan menggunakan satu contoh bagi setiap asid P dan asid Q, terangkan
perbezaan nilai pH asid-asid tersebut.
[8 marks]
(b)
Calamine lotion contains a few chemicals. One of them is ammonium
hydroxide. Write the chemical formula for ammonium hydroxide and explain
its function in the lotion.
Larutan kalamin mengandungi beberapa bahan kimia. Salah satu darinya
ialah ammonium hidroksida. Tuliskan formula kimia bagi ammonium
hidroksida dan terangkan kegunaannya di dalam larutan.
[3 marks/ markah]
Aaron was bitten by an ant and his skin becomes itchy. He uses
calamine lotion to relief the pain.
Aaron digigit semut dan kulitnya menjadi gatal. Dia menyapu
losen kalamin untuk menghilangkan kesakitan.
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(c) (i) 50 cm3 of 0.5 mol dm-3 sulphuric acid, H2SO4 reacts completely with 25 cm3
of sodium hydroxide, NaOH solution.
Write the chemical equation for the reaction.
Calculate the molarity of the sodium hydroxide, NaOH solution needed to
neutralize the acid.
50 cm3 asid sulfurik, H 2SO4 0.5 mol dm-3 bertindak balas dengan lengkap
bersama 25 cm3 larutan natrium hidroksida, NaOH.
Tuliskan persamaan kimia bagi tindak balas.
Hitung kemolaran larutan natrium hidroksida, NaOH yang diperlukan untuk
meneutralkan asid tersebut.
[6 marks]
(ii) If the sulphuric acid, H2SO4 in question (c)(i) is replaced with hydrochloric
acid, HCl with the same volume and concentration, predict the molarity of
sodium hydroxide, NaOH solution needed. Explain your answer.
Sekiranya asid sulfurik, H 2SO4, dalam soalan (c)(i) digantikan dengan asid
hidroklorik , HCl, yang sama isipadu dan kepekatannya, ramalkan
kemolaran larutan natrium hidroksida , NaOH yang diperlukan. Terangkan
jawapan anda?
[3 marks]
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50
8 A group of pupils carried out three experiments to investigate the factors affecting the
rate of reaction.
Table 8 shows information about the reaction in each experiment.
Sekumpulan pelajar menjalankan tiga eksperimen untuk mengkaji faktor yang mempengaruhikadar tindak balas.
Jadual 8 menunjukkan maklumat yang digunakan dalam setiap eksperimen
Experiment
Eksperimen
Reactants
Bahan tindak balas
I60 cm3 of 0.25 mol dm-3 hydrogen peroxide solution
30 cm3 larutan hidrogen peroksida 0.5 mol dm-3
II30 cm3 of 0.5 mol dm-3 hydrogen peroxide solution
30 cm3 larutan hidrogen peroksida 0.5 mol dm-3
III
30 cm3 of 0.5 mol dm-3 hydrogen peroxide solution + manganese
(IV) oxide
30 cm3 larutan hidrogen peroksida 0.5 mol dm-3 + mangan(IV) oksida
Table 8
Jadual 8
The graph in diagram 8 shows the results of these experiments.
Graf pada rajah 8 menunjukkan keputusan eksperimen tersebut.
Volume of gas /cm3
Isipadu gas / cm3
III II I
0 15 30 55
Diagram 88
Rajah 8
Time/s
Masa/s
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(a) Calculate the average rate of reaction for Experiment I.
Hitungkan kadar tindak balas purata bagi eksperimen I.
[2 marks]
(b) Hydrogen peroxide decomposes to oxygen gas and water.
Sketch the energy profile diagram for Experiment II and Experiment III on the
same axes.
Indicates clearly the activation energy for both experiment.
Hidrogen peroksida terurai kepada gas oksigen dan air.
Lakarkan gambarajah profil tenaga bagi Eksperimen II dan Eksperimen III pada
paksi yang sama.
Tunjukkan dengan jelas tenaga pengaktifan bagi setiap eksperimen.
[4 marks]
(c) Based on Table 8 and Graph 8, compare the rate of reaction between
Experiment I and Experiment II
Experiment II and Experiment III
In each case explain the difference in rate of reaction with reference to the collision
theory.
Berdasarkan Jadual 8 dan Graf 8, bandingkan kadar tindak balas antara Eksperimen I and Eksperimen II
Eksperimen II and Eksperimen III
Terangkan perbezaan dalam kadar tindak balas bagi setiap kes dengan merujuk
pada teori pelanggaran.
[10 marks]
(d) The chemical equation below shows the decomposition of hydrogen peroxide.
Persamaan kimia di bawah menunjukkan penguraian hidrogen peroksida.
2H2O2 2H2O + O2
Calculate the maximum volume of oxygen gas produced in Experiment II.
Hitungkan isipadu maksimum gas oksigen yang terhasil dalam Eksperimen II
[ 1 mole of gas occupied 24 dm3 at room condition]
[1 mol gas menempati 24 dm3 pada keadaan bilik ]
[4 marks]
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Section C
Bahagian C
[20 marks]
Answer any one question from this section
Jawab mana-mana satu soalan daripada bahagian ini.
9. Table 9 shows the proton numbers of element V, W and X.
Jadual 9 menunjukkan nombor proton bagi unsur V, W dan X.
Element
Unsur
Proton number
Nombor proton
V 6
W 11
X 8
Table 9
Jadual 9
(a) Based on table 9, choose two different elements can formed either ionic
compound or covalent compound and answer these question:
Daripada jadual 9, pilih dua unsur yang berl ainan yang boleh membentuk
samada sebatian ion atau sebatian kovalen dan jawab soalan berikut:
(i) State the type of bond and the molecular formula of the compound formed
Write a balanced chemical equation for the reaction that occur between the
elements.
Nyatakan jenis ikatan dan formula molekul bagi sebatian yang terbentuk
Tuliskan persamaan kimia seimbang bagi tindakbalas yang berlaku antara
unsur-unsur tersebut.
[4 marks]
(ii) Draw the electron arrangement of the compound formed. Explain how the
compound is formed. Give one physical property of the compound.
Lukiskan susunan elektron bagi sebatian yang terbentuk. Terangkan
bagaimana sebatian itu terbentuk Berikan satu sifat fizik bagi sebatian
tersebut.
[ 11 marks]
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(b) Diagram 9 shows a flow chart when a substance Y is dissolved in two different
solvent, water and solvent Z, and the properties of solutions formed.
Rajah 9 menunjukkan carta aliran apabila bahan Y dilarutkan dalam dua pelarut
berlainan, air dan pelarut Z, sifat-sifat larutan yang terhasil.
Diagram 9
Rajah 9
(i) Suggest substance Y and solvent Z.
Cadangkan bahan Y dan pelarut Z
(ii) Explain the differences in properties between solution I and solution II.
Terangkan perbezaan sifat di antara larutan I dengan larutan II.
[5 marks]
+ solvent Z
+ pelarut Z
+ water
+ air
substance Y
bahan Y
Solution I
Can conduct electricity
Change the colour of litmus paper
Boleh mengalirkan arus elektrik
Mengubah warna kertas litmus
Solution II
Cannot conduct electricity
Does not change the colour oflitmus paper
Tidak boleh mengalirkan aruselektrik
Tidak mengubah warna kertas
litmus
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10 Alcohol is an example of an organic compound with various uses. The general formula
of alcohol is CnH2n+1 OH.
Alkohol adalah satu contoh sebatian organik dengan pelbagai kegunaan.
Formula am alkohol adalah CnH2n+1 OH.
(a) An alcohol contains 64.9 % of carbon, 13.5% of hydrogen and 21.6% of oxygen.
Determine the molecular formula of the alcohol and state the name of the alcohol.
Sejenis alkohol mengandungi 64.9 % karbon, 13.5% hidrogen and 21.6% oksigen.
Tentukan formula molekul alcohol tersebut dan nyatakan nama alkohol tersebut.
[3 marks]
(b) Diagram 10 shows the flow chart on how ethanol can be prepared in the schoollaboratory and industry using glucose and ethene respectively.
Rajah 10 menunjukkan carta alir bagaimana etanol dapat disediakan di makmal
sekolah dan industri menggunakan glukosa dan etena masing-masing.
Diagram 10
Rajah 10
Briefly describe the preparation of ethanol from glucose and ethene.
Your description must include:
● The name of the process and the steps required.
● The chemicals to be used and the suitable conditions for the conversions
● The chemical equation for the reactions that occur
Huraikan dengan ringkas penyediaan etanol daripada glukosa dan etena.
Huraian anda haruslah merangkumi:
Nama bagi proses dan langkah yang terlibat
Bahan kimia yang digunakan dan keadaan yang sesuai bagi pertukaran
Persamaan kimia bagi tindak balas yang berlaku
[10 marks]
Ethanol
Etanol
Glucose
Glukosa
Ethene
Etena
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(c) Alcohols react with carboxylic acids to form esters and water.
By using one named example of an alcohol and one named example of a
carboxylic acid, describe the preparation of an ester in the laboratory.
Alkohol bertindak balas dengan asid karboksilik untuk menghasilkan ester dan air.
Dengan menggunakan satu alkohol yang dinamakan dan satu asid karboksilik yang
dinamakan, huraikan penyediaan ester di dalam makmal.
[6 marks]
END OF QUESTION PAPER
KERTAS SOALAN TAMAT
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SULIT 4541/2
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INFORMATION FOR CANDIDATES MAKLUMAT UNTUK CALON
1. This question paper consists of three sections: Section A, Section B and Section C.
Kertas soalan ini mengandungi tiga bahagian: Bahagian A. Bahagian B dan
Bahagian C. 2. Answer all questions in Section A. Write your answers for Section A in the spaces
provided in this question paper.
Jawab semua soalan datam Bahagian A. Jawapan anda bagi Bahagian A hendaklah
ditulis pada ruang yang disediakan dalam kertas soalan.
3. Answer any one question from Section B and any one question from Section C. Write
your
answers for Section B and Section C on the 'helaian tambahan' provided by the
invigilators. You may use equations, diagrams, tables, graphs and other suitable
methods to explain your answers.
Jawab mana-mana satu soalan daripada Bahagian B dan mana-mana satu soalan
daripada Bahagian C. Tulis jawapan anda bagi Bahagian B dan Bahagian C dalamhelaian tambahan yang dibekalkan oleh pengawas peperiksaan. Anda boleh
menggunakan persamaan, rajah, jadual, graf dan cara lain yang sesuai untuk
menjelaskan jawapan anda.
4. The diagrams in the questions are not drawn to scale unless stated.
Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.
5. Marks allocated for each question or sub-part of a question are shown in brackets.
Markah yang diperuntukkan bagi setiap soalan 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.
Jika anda hendak menukar jawapan, batalkan jawapan yang telah dibuat. Kemudian
tulis jawapan yang baru.
8. The Periodic Table of Elements is provided on pages 24 and 25.
Jadual Berkala Unsur disediakan di halaman 24 dan 25.
9. You may use a scientific calculator.
Anda dibenarkan menggunakan kalkulator saintifik.
10. You are advised to spend 90 minutes to answer questions in Section A, 30 minutes for
Section B and 30 minutes for Section C.
Anda dinasihati supaya mengambil masa 90 minit untuk menjawab soalan dalam Bahagian A, 30 minit untuk Bahagian B dan 30 minit untuk Bahagian C.
11. Detach Section B and Section C from this question paper. Tie the "helaian tambahan"
together with this question paper and hand in to the invigilator at the end of the
examination.
Ceraikan Bahagian B dan Bahagian C daripada kertas soalan ini. Ikat helaian
tambahan bersama-sama kertas soalan ini dan serahkan kepada pengawas
peperiksaan pada akhir peperiksaan.
4541/2 SULIT
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1
MODUL PENINGKATAN PRESTASI TINGKATAN 5
TAHUN 2014
MAJLIS PENGETUA SEKOLAH MALAYSIA (KEDAH)
MODUL A
KIMIA SPM
Kertas 3
Satu jam tiga puluh minit
JANGAN BUKA MODUL INI SEHINGGA DIBERITAHU
1.
Tulis nombor kad pengenalan dan
angka giliran anda pada petak yang
disediakan.
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 ataubahasa Melayu.
5. Calon dikehendaki membaca
maklumat di halaman belakang kertas
soalan ini.
Untuk Kegunaan Pemeriksa
SoalanMarkah
Penuh
Markah
Diperolehi
133
217
Jumlah 50
Kertas soalan ini mengandungi 8 halaman bercetak .dan 1 halaman tidak bercetak.
[Lihat halaman sebelah
SULIT
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1 Diagram 1 shows the apparatus set-up of experiment to compare the hardness of copper
and its alloy. The 1 kilogram weight at 500 cm height is dropped onto a stainless steel ball
bearing stick on the block of copper. The step is repeated three times on different surfaces
of the copper block. The dents formed are shown in Table 1. The diameter of the dents are
recorded. The experiment was repeated using brass block. Rajah 1 menunjukkan susunan radas eksperimen untuk membandingkan kekerasan kuprum dan
aloinya. Pemberat 1 kilogram pada ketinggian 500 cm dijatuhkan ke atas bebola keluli yang
dilekatkan ke atas blok kuprum. Langkah tersebut diulang sebanyak tiga kali keatas permukaan
blok yang berlainan. Lekuk yang terbentuk ditunjukkan dalam Jadual 1. Diameter lekuk
direkodkan. Eksperimen diulang menggunakan blok loyang.
Diagram 1 Rajah 1
Copper block
Blok kuprum
1 kg weight
Pemberat 1 k
stainless steel ball bearing
bebola keluli
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Surface Copper block Brass block
1
Diameter of dent formed: Diameter lekuk terbentuk:
...........................................cm
Diameter of dent formed: Diameter lekuk terbentuk:
................................................cm
2
Diameter of dent formed: Diameter lekuk terbentuk:
…………...............................cm
Diameter of dent formed: Diameter lekuk terbentuk:
................................................cm
3
Diameter of dent formed: Diameter lekuk terbentuk:
..............................................cm
Diameter of dent formed: Diameter lekuk terbentuk:
.................................................cm
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(a) Record the diameter of the dents formed in both experiment.
Rekodkan diameter bongkah-bongkah yang terbentuk bagi kedua-dua eksperimen.
[3 marks](b) Construct a table to record the diameter and the average diameter of dents on copper and
brass blocks.
Bina satu jadual untuk merekod diameter lekuk dan purata diameter lekuk bagi bongkah
kuprum dan bongkah loyang.
[3 marks]
(c) State one hypothesis for the experiment.
Nyatakan satu hipotesis bagi kedua eksperimen.
..................................................................................................................................................
..................................................................................................................................................
..................................................................................................................................................
[3 marks]
(d) State the variables for this experiment. Nyatakan pemboleh ubah bagi eksperimen ini.
(i) Manipulated variable: -.......................................................................................
Pemboleh ubah dimanipulasikan:
(ii) Responding variable:-.......................................................................................
Pemboleh ubah bergerak balas:
(iii) Fixed variable:-................................................................................................
Pemboleh ubah dimalarkan:
[3 marks]
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(e) State the operational definition for hardness of alloy.
Nyatakan definisi secara operasi bagi kekerasan aloi.
..................................................................................................................................................
..................................................................................................................................................
..................................................................................................................................................
. [3 marks]
(f) What can you observe at the diameters of dents when alloy block is used to replace the
pure metal block?
Apakah yang dapat diperhatikan pada diameter bagi lekuk terbentuk apabila blok aloi
diguna bagi menggantikan blok logam tulen?
………………………………………………………………………………….....................
………………………………………………………………………………………………..
……………………………………………………………………………………………….
[3 marks]
(g) What is the inference based on the observation?
Apakah inferens berdasarkan pemerhatian?
………………………………………………………………………………………………
……………………………………………………………………………………………
....
………………………………………………………………………………………………
[3 marks]
(h) If a steel bar and an iron bar are left in at moist area for three days, what will happen for
the steel bar and an iron bar?
Sekiranya satu kepingan keluli dan kepingan besi dibiarkan di kawasan lembab selama
tiga hari, apakah yang akan terjadi kepada kepingan keluli dan kepingan besi tersebut?
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
[3 marks]
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(i) A student repeat this experiment using copper block, but she dropped the weight from 400
cm height. Predict the value of diameter of dents produce.
Seorang pelajar telah mengulangi eksperimen ini dengan menggunakan bongkah kuprum,
tetapi dia telah menjatuhkan pemberat pada ketinggian 400cm. Ramalkan nilai diameter
lekuk yang terhasil.
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
[3 marks ]
(j) Classify all the substances below into alloy and pure metals.
Kelaskan semua bahan-bahan di bawah kepada aloi dan logam tulen.
Duralumin Magnesium Pewter Tin Manganese Gold
Duralumin Magnesium Piuter Timah Mangan Emas
Alloy
Aloi
Pure Metal
Logam Tulen
[3 marks]
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3 Fresh milk stored in the refrigerator lasts longer than that placed in the cabinet.
Susu segar yang disimpan di dalam peti sejuk didapati tahan lebih lama berbanding
diletakkan di dalam kabinet.
Referring to the above situation, plan a laboratory experiment to investigate the effect of
temperature on the rate of reaction between sodium thiosulphate solution and
hydrochloric acid.
Merujuk kepada maklumat di atas, rancang satu eksperimen dalam makmal untuk
menyiasat kesan suhu keatas kadar tindak balas antara larutan natrium tiosulfat dengan
asid hidroklorik.
Your planning must include the following aspects:
Perancangan anda hendaklah mengandungi aspek-aspek berikut :
(a)
Problem statement
Pernyataan masalah
(b) All the variables
Semua pembolehubah
(c) Hypothesis
Hipotesis
(d)
List of materials and apparatusSenarai bahan dan radas
(e) Procedure
Prosedur
(f) Tabulation of data
Penjadualan data [17 marks]
END OF QUESTION PAPER
KERTAS SOALAN TAMATSULIT
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INFORMATION FOR CANDIDATES MAKLUMAT UNTUK CALON
1. This question paper consists of two questions: Question 1 and Question 2
Kertas soalan ini mengandungi dua soalan: Soalan 1 dan Soalan 2.
2. Answer all questions. Write your answers for Question 1 in the spaces provided in this
question paper.
Jawab semua soalan. Tulis jawapan anda bagi Soalan 1 pada ruang yang disediakan
dalam kertas soalan ini.
3. Write your answers for Question 2 on the 'helaian tambahan' provided by the invigilators.
You may use equations, diagrams, tables, graphs and other suitable methods to explain your
answers.
Tulis jawapan anda bagi Soalan 2 dalam helaian tambahan yang dibekalkan oleh
pengawas peperiksaan. Anda boleh menggunakan persamaan, rajah, jadual, graf dan
cara lain yang sesuai untuk menjelaskan jawapan anda.
4.
Show your working, it may help you to get marks. Tunjukkan kerja mengira, ini membantu anda mendapatkan markah.
5. The diagrams in the questions are not drawn to scale unless stated.
Rajah dalam soalan tidak dilukis mengikut skala kecuali dinyatakan.
6. The marks allocated for each question or sub-part of a question are shown in brackets.
Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan
dalam kurungan.
7. If you wish to change your answer, cross out the answer that you have done. Then write down
the new answer.
Jika anda hendak menukar jawapan, batalkan jawapan yang telah dibuat. Kemudian
tulis jawapan yang baru.
8. You may use a scientific calculator.
Anda dibenarkan menggunakan kalkulator saintijik.
9. You are advised to spend 45 minutes to answer Question 1 and 45 minutes for Question 2.
Anda dinasihati supaya mengambil masa 45 minit untuk menjawab Soalan 1 dan 45
minit untuk Soalan 2.
10. Detach Question 2 from this question paper. Tie the 'helaian tambahan' together with this
question paper and hand in to the invigilator at the end of the examination.
Ceraikan Soalan 2 daripada kertas soalan ini. Ikat helaian tambahan bersama-sama
kertas soalan ini dan serahkan kepada pengawas peperiksaan pada akhir peperiksaan.
SULIT
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JAWAPAN KERTAS 1 MODUL 1
1.
D 26. B
2.
A 27 C
3.
B 28 A
4.
C 29 D
5.
C 30 B
6.
D 31 C
7.
D 32 A
8.
B 33 C
9.
A 34 B
10.
D 35 A
11.
B 36 C
12.
A 37 D
13.
D 38 C
14.
C 39 D
15.
D 40 A
16.
A 41 A
17.
B 42 B
18.
B 43 C
19.
D 44 C
20. B 45 A
21.
B 46 C
22.
C 47 B
23.
D 48 B
24.
A 49 C
25.
C 50 D
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1
ANSWER SCHEME
MODUL 1 PAPER 2
No Sample answer Mark
1 (a) (i) The number of protons in the nucleus of an atom. 1
(ii) 17 1
(b) (i) 2.8.1 // 2, 8, 1 1
(ii) Reacts with water to produce hydrogen and metal hydroxide//Reacts with oxygen to form metal oxide.//Reacts with chlorine gas to produce metal chloride.
1
(c) Q and Rbecause they have the same proton number but different nucleonnumber// same number of proton but different number of neutrons
1
1
(d) (i) Correct no of shellsCorrect e arrangement
11
(ii) To fill advertising light bulb 1Total 9 m
2 (a) Element D Atom D has achieved octet electron arrangement / 8 valenceelectrons // atom D does not receive, release or share electrons withother atom
1
1
(b) A 1
(c) G 1
(d) D, B, A, G, E 1(e) (i) Use a small piece of A // use a filter paper to dry A //The gas jar
spoon is quickly placed into a gas jar
1
(ii) 4 A + O2 2 A2O 1(iii) 4 moles of A : 2 moles of R2O
1 moles of A : 0.5 moles of R2O
Mass of R2O = 0.5 x [2(7) + 16 ]
= 15 g[r: answer without unit]
1
1
XXX
X
XX
X
X
S
XX
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2
Total 9 m
3 (a) Boron oxide 1
(b) In pure copper, the atoms can slide easily.
Dalam kuprum tulen, atom-atom boleh mengelungsur denganmudah.
In bronze/alloy, tin atoms/foreign atoms disrupt the orderly
arrangement of copper atoms//layers of atoms cannot slide easily
Dalam aloi/bronze atom asing atau atom timah menggangu susunanteratur atom kuprum.//Lapisan atom tidak dapat bergelungsurdengan mudah
1
1
(c) (i)
H Cl
| |
C – C
| |
H H
1
(ii) Do not rust//oxidised 1
(d) Reinforced concreteKonkrit yg diperkukuhkan
1
(e) (i) 2NH3 + H2SO4 → (NH4)2SO4
Correct formulaebalance
11
(ii) urea
% of N in CO(NH2)2 = 14x2 / (12+16+(14x2)+4) x 100
= 46.67%
% of N in (NH4)2SO4 = 14x 2 / (14x2)+6+32+(16x4)
= 21.5%
1
1
1
Total 11 m
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3
4 (a) (i) Chemical energy to electrical energy 1
(ii) Electrical energy to chemical energy 1
(b)
1
(c) (i) Zn + Cu2+ Zn2+ + Cu
Correct ionic formulaBalance equation
11
(d) (i)
(ii)
become thicker
become thinner11
(e) (i) No change // blue solution remain unchanged 1
(ii) The rate of copper ionises at anode is the sameas the rate of copper ion discharged at cathodenumber/concentration of Cu2+ ion in the solution remain
1
1
Total 10 m
5 (a) (i) Salts is an ionic compound formed when hydrogen ion in an acid is replaced by metal ion or ammonium ion.
1
(ii)
White solid turns brown when hot and yellowwhen coldPepejal putih bertukar perang semasa panasdan kuning semasa sejuk
√
Black solid turns brownPepejal hitam bertukar perang
1+1
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4
Lime water remain unchanged Air kapur tidak berubah
Lime water turns chalky Air kapur menjadi keruh
√
(b) (i) Pb(NO3)2 + Na2CO3 → Pb CO3 +2NaNO3
Correct formula of reactant and productCorrect balancing
11
(ii) Double decomposition reaction 1
(iv)Filter the solution mixture using filter funnel and filter paperRinse the residue
11
c 1. Add 2 cm3 of KI/NaI solution into the test tube contain 2 cm3 of
Pb(NO3)2 solution and the test tube is shaken
2. Yellow precipitate formed indicates the presence on Pb2+ ion
1
1
Total 11 m
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5
6 (a) Hidrogenation // Addition 1
(b) C4H8 + H2 C4H10 1
(c) 1. Put 2 – 3 drops of bromine into two different test tubes2. Fill 2 cm3 of but-1-ene and 2 cm3 of hydrocarbon Y in the test
tubes with stopper.3. But-1-ene decolourise brown bromine water but in
hydrocarbon Y remain unchanged
or
1. Put 2 – 3 drops of acidified potassium manganate(VII)solution into two different test tubes
2. Fill 2 cm3 of but-1-ene and 2 cm3 of hydrocarbon Y into thetest tubes with stopper.
4. Shake the test tubes3. But-1-ene decolourise purple acidified potassium
manganate(VII) solution but in hydrocarbon Y purple colourremain unchanged
1
11
(d) Able to calculate number of mole with unit0.05 mol
1
Able to calculate mass with unitRatio:1 mol Y 4 mol CO2 0.5?
0.5 x 41
= 2 mol
Or
1 mol Y : 4 mol CO2
0.5 mol : 2 mol CO2
Mass of CO2 2 x 44 g // 88 g[r: answer without unit]
1
1
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6
(e) Isomer
1
1
1
Total 11 m
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7
7 acid P : hydrochloric acid/ sulphuric acid/ nitric acid.
Acid P/ hydrochloric acid/ sulphuric acid/ nitric acid is a strong acid//ionize completely in water
to produce high concentration of H+ ions.
It will cause the pH value to be lower (smaller).
acid Q : ethanoic acid.
Acid Q/ ethanoic acid is a weak acid // Ionise partially in water
to produce low concentration of H+ ions.
Hence, pH value is higher (bigger)
1
1
1
1
1
1
1
1NH4OH
neutralize the acidsecreted by ant
1
11
H2SO4 + 2NaOH Na2 SO4 + 2H2O
Correct formula reactants and productsBalance equation
Calculation:
Mole of H2SO4
MV = 0.5 X 501000 1000
= 0.025 mole
Ratio1 mole of H2SO4 : 2 mole of NaOH
0.025 : 0.05
Correct Molarity of NaOH with unit:
n= 0.05 X 100025
= 2.0 mol dm-3 [r: answer without unit]
11
1
1
1
1
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8
mol dm-3/ halved / decrease halved / less halvedhydrochloric acid is monoprotic/monobasic acid.sulphuric acid is a diprotic acid / dibasic acid
111
Total 20 m
8 (a)
1. average rate = 55
50
2. = 0.909//0.91 cm3 s-1[r: answer without unit]
1
1
(b)
1.y axis labeled energy
2.both curve drawn correctly with label3.energy level labeled with reactant and products [a: exo or endo]4.activation energy labeled correctly
1
111
(c) Experiment I and Experiment II
1. Rate of reaction of experiment II is higher than experimentI
2. Experiment II use higher concentration of hydrogenperoxide
3. the number of Hydrogen peroxide molecules/reactantparticles per unit volume in experiment II is higher.
4 .Frequency of collision between Hydrogen peroxidemolecules of experiment II become higher
5. Frequency of effective collision between Hydrogenperoxide molecules/reactant particles of experiment IIbecome higher
Experiment II and Experiment III6. Rate of reaction of experiment III is higher than experiment
1
1
1
1
1
Ea
2H2O + O2
2H2O2 Ea’
EnergyExperiment II
Experiment III
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9
II7. Catalyst that is Manganese(IV) oxide present in experiment
III8. Manganese(IV) oxide lower the activation energy of the
reaction in experiment III9. More colliding hydrogen peroxide molecules easily
overcome the lower activation energy in experiment III10. Frequency of effective collision between Hydrogen
peroxide molecules of experiment III become higher
1
1
1
1
1(d) 1. number of mole of H2O2 = 0.5 x 30 // 0.015
1000
2. 2 mole of H2O2 produce 1 mole of O2
3. number of mole of O2 = 0.015 // 0.00752
4.volume of O2 = 0.0075 x 24 dm3 //0.18 dm3 //180 cm3[r: answer without unit]
1
1
1
1
Total 20 m
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10
9 (a) (i) Ionic compound: W and X // covalent compound : V and X 1+1
(ii)
Ionic compound
1. Correct charge of ion
2. correct number of electron in the shell for each ion
3. contain nucleus
Explanation
Ionic compound
Electron arrangement of an atom of element W is 2.8.1
2 Atom W donates one electron each to achieve the stable electronarrangement which is 2.8
2 W ion, W+ is formed
Electron arrangement of atom X is 2.6
Electrons from atom W are transferred to an atom of X
Atom X receives TWO electrons to achieve the stable electron
arrangement which is 2.8.
W ion, X2-is formed
The W ion, W
+
and X ion X
2-
, formed are attracted to one anotherto form an ionic compound, W2X
The strong electrostatic forces between the opposite-charged ions
is called ionic bond.
Any 7 points
Any physical state
1
1
1
7marks
1 mark
w w
x
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11
Covalent bond
Atom V has four valence electrons, with an electron arrangement
of 2.4
It needs four more electrons to achieve the stable electron
arrangement
One atom of X contributes 2 electrons for sharing
Atom Xhas SIX valence electrons, with an electron arrangement of2.6
It needs two more electron to achieve the stable electron
arrangement
One atom of v share a pair of electrons with two atoms of x
Covalent compound of VX2 is formed
Any physical state
1. correct number of electron for each atom combined2. contain nucleus
3. correct the position ( share the electron + shell)
7marks
1 mark
vx x
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12
b i Substance Y is glacial ethanoic acid // gas hydrogen chloride
Solvent Z is tetrachloromethane//ethanol//any organic solvent
11
ii Solution I
Substance Y dissolve in water
The ions in water dissociate and move freely
Solution II
Substance Y do not dissolve
Exist as neutral covalent molecules
11
11
Max 5
Total 20 m
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13
Question No Mark Scheme Marks
10 (a) elements C : H : Omass/g 64.9 : 13.5 : 21.6no of mole 5.4 : 13.5 : 1.35
ratio 4 : 10 : 1
C4 H9OHbutanol
1
1
11
(b) From glucose:
ProcessFermentation
Step• 50 cm 3 glucose solution is added with yeast into a conical flask
Left for 3 days• The product is then purified by fractional distillation
Chemical equationC6H12O6 → 2C2H5OH + 2CO2
From ethene:ProcessHydration // addition reaction
Step• A mixture of ethene and water vapour/ steam are passed over
phosphoric acid as the catalyst
• At temperature of 300 °C and pressure of 60 atm
Chemical equationC2H4 + H2O → C2H5OH
1
1
1
1
1
11
1+1
1
(c) Name any suitable alcohol
Name any suitable carboxylic Mix alcohol and carboxylic acid (same volume)
In round bottom flask
Add a few drops of sulphuric acid concentrated
Heat the mixture in bath bath under reflux
1
11111
Total 20 m
END OF MARK SCHEME
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1
MODULE 1 PAPER 3 MARKING SCHEME
Q ANSWER SCORE
1 a [able to measure diameter of dents accurately and correctly]
Sample answer:
Copper : 2.0, 2.1, 2.1
Brass : 1.9, 1.8, 1.9
3
[able to measure diameter of dents without two decimal place] 2
[able to state four diameter of dents correctly] 1
No response or wrong response 0
Q ANSWER SCORE
1 b [able to construct table with correct label and unit]
Sample answer:
Type of blocks Diameter of dents (cm) Average diameter of dents
(cm)l ll lll
Copper 2.00 2.10 2.10 2.06
Brass 1.90 1.80 1.90 1.87
3
[able to construct the table without correct label or unit] 2
[able to construct idea of table] 1
No response or wrong response 0
Q ANSWER SCORE1 c [able to state hypothesis correctly]
Sample answer
When brass is used, the diameter of dent is smaller //
When copper is used, the diameter of dent is bigger
3
[able to state hypothesis less correctly] 2
[able to state idea of hypothesis] 1
No response or wrong response 0
Q ANSWER SCORE
1 d [able to state all the variables]
Sample answer
1.
Manipulated variable : type of materials / blocks// copper and brass
2.
Responding variable : diameter / size of dents
3.
Fixed variable : size / diameter and mass of steel ball bearing// height of
the weight // mass of the weight
3
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2
[able to state any two variables correctly] 2
[able to state any one variable correctly] 1No response or wrong response 0
Q ANSWER SCORE
1 e [able to state operational definition correctly]
Sample answer
Smaller dent is produced when 1kg of weight is dropped on the block.
3
[able to state operation definition less correctly]
Sample answer
Smaller dent is produced when weight is dropped on the block2
[able to state operation definition]
Sample answer
The harder block has a smaller dent
1
No response or wrong response 0
1 f [able to state observation correctly]
Sample answer
The average diameter of dent become smaller
3
[able to state observation less correctly]
Sample answer
The dent become smaller
2
[able to state idea of observation]
Sample answer
Small dent
Q ANSWER SCORE
1 g [able to state inference correctly]
Sample answer
Brass is the harder than copper
3
[able to state inference less correctly] 2
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3
Sample answer
Brass is the harder
[able to state idea of inference]
Sample answer
Brass is the hard // copper is soft
1
No response or wrong response 0
h [able to state situation correctly]
Sample answer
Iron bar rust , steel bar do not rust
3
[able to state situation less correctly]
Only 1 bar stated2
[able to state idea of situation] 1
No response or wrong response 0
i 1.65 cm 3
Antara 1.55 hingga 1.75 cm 2
Antara 1.45 hingga 1.55cm // 1.75 hingga 1.85 cm 1
Wrong responr // no respon 0
j [able to classify all correctly]
Alloy Pure metal
Duralumin
Pewter
Tin
Gold
Manganese
Magnesium3
[able to classify 5 correctly] 2
[able to classify 4 correctly] 1
Other respon 0
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4
Question Rubric Score
3(a)
Able to give the statement of the problem correctly
Sample answer :How does the temperature of sodium thiosulphate solution affect the rateof reaction?
3
Able to give the statement of the problem incorrectly
Sample answer :How does the temperature of solution affect the rate of reaction?
2
Able to give an idea of statement of the problem
Sample answer :To determine the rate of reaction by the temperature of solution
1
No response or wrong response 0
Question Rubric Score
3(b)
Able to state all variables correctly
Sample answer :Manipulated variable :The temperature of sodium thiosulphate solution
Responding variable : Rate of reaction//The time taken for the ‘X’ mark to
disappearConstant variable : Volume and concentration (sodium thiosulphate) /
(hydrochloric acid) // sodium thiosulphate // acid//size of conical flask
3
Able to state any two variables correctly 2
Able to state any one variable correctly 1
No response or wrong response 0
Question Rubric Score
3(c)
Able to state the relationship between the manipulated variable and theresponding variable correctly
Sample answer :The higher the temperature of sodium thiosulphate solution , the higher therate of reaction
3
Able to state the relationship between the manipulated variable and the
responding variable incorrectly
Sample answer :The rate of reaction increases when the temperature of solution increase
2
Able to state an idea of hypothesis
Sample answer :
The temperature of reactant affect the rate of reaction
1
No response or wrong response 0
QuestionRubric Score
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5
3(d)
Able to give the list of the apparatus and materials correctly andcompletely
Answer:
Apparatus:
conical flask, measuring cylinder, thermometer, stopwatch, white paper,wire gauze, tripod stand, Bunsen bunner
Material:
[0.1 – 1.0] mol dm-3 sodium thiosulphate solution,[ 0.1-1.0] mol dm-3 hydrochloric acid
3
Able to give the list of the apparatus and materials correctly but not
completely
Answer:
Apparatus:
conical flask, thermometer, stopwatch, white paper, Bunsen bunner
Material:
Sodium thiosulphate solution, hydrochloric acid
2
Able to give two materials and at least one apparatus
Sample answer :
Material:
Sodium thiosulphate solution, hydrochloric acid
Apparatus:
[container]
1
No response or wrong response 0
Question Rubric Score
3(e)
Able to state all procedures correctly
Sample answer :1. Draw an X on a white paper.2. Pour [20-100] cm3 of [0.1 – 1.0] mol dm-3 sodium thiosulphate
solution into a conical flask.3. Record the temperature of solution.
4. Place the conical flask on the X.
5.
Pour [5 – 10] cm3 of [0.1 – 1.0] mol dm-3 hydrochloric acidsolution.
6. Swirl the conical flask and start the stopwatch immediately.7.
Stop the stopwatch when the X is no longer visible. Record the
time taken.8. Repeat steps 2 to 7 using 35oC, 40oC, 45oC and 50oC temperature
of sodium thiosulphate solution.
3
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Able to state four steps of procedures correctly
Steps 2, 4, 5, 82
Able to state two steps of procedures correctly
Steps 2, 5
1
No response or wrong response 0
Question Rubric Score
3(f)
Able to exhibit the tabulation of data that includes the following
information.
1. Headings2. With unit
Sample answer :
Temperature/o
C Time/s30
35
40
45
50
2
Able to tabulate the data incompletely
1. Titles without unit
Sample answer :
Temperature Time
1
No response given / wrong response
0
END OF MARKING SCHEME