SPM Percubaan 2008 MRSM Chemistry Paper 2
-
Upload
chinwynncom -
Category
Documents
-
view
346 -
download
4
Transcript of SPM Percubaan 2008 MRSM Chemistry Paper 2
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
1/33
Name : .
Index Number: .......
SPM TRIAL EXAMINATION 2008
MARA Junior Science College
CHEMISTRY
Paper 2
Two hours and thirty minutes
DO NOT OPEN THE QUESTION BOOKLET
UNTIL BEING TOLD TO DO SO
1. Write your name and index number in thespaces provided.Tuliskan nama dan angka giliran anda pada ruang
yang disediakan.
2. The question booklet is bilingual
Kertas soalan ini adalah dalam dwibahasa.
3. Candidate is required to read the information
at the back page of the question booklet.Calon dikehendaki membaca maklumat di halaman
belakang kertas soalan ini .
Kod Pemeriksa
Section QuestionFull
markMarks
A
1 9
2 9
3 10
4 10
5 11
6 11
B
7 20
8 20
C
9 20
10 20
TOTAL
This booklet contains 32 printed pages.
4541/2
Chemistry
Paper 2
Sept 2008
2 hour
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
2/33
4541/2
4541/2 Copyright Reserved MARA 2 [See next pageCONFIDENTIAL
Section ABahagian A
[60 marks]
[60 markah]
Answerall questions in this section.Jawabsemua soalan dalam bahagian ini.
1 Diagram 1.1 shows the set up of the apparatus used in an experiment to determine
the melting point of a substance M.Rajah 1.1 menunjukkan susunan radas yung digunakan untuk menentukan takat lebur bahan M.
Diagram 1.1Rajah 1.1
(a) (i) State one error in Diagram 1.1Nyatakan satu kesilapan di dalam Rajah 1.1.
...[1 mark]
[1 markah]
(ii) Why water bath is used to heat the substance M?Mengapakah kukus air digunakan untuk memanaskan bahan M?
...[1 mark][1 markah]
For
Examiners
Use
1(a)(i)
1(a)(ii)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
3/33
4541/2
4541/2 Copyright Reserved MARA 3 [See next pageCONFIDENTIAL
(b) Diagram 1.2 shows a graph of temperature against time when solid of
substance M is heated.Rajah 1.2 menunjukkan graf suhu melawan masa apabila pepejal bahan M dipanaskan.
Diagram 1.2Rajah 1.2
(i) What is the melting point of substance M?Berapakah takat lebur bahan M?
...[1 mark]
[1 markah]
(ii) State the physical state of substance M at point F.Nyatakan keadaan fizikal bahan M pada titik F.
...[1 mark]
[1 markah]
(iii) Compare kinetic energy of particles at points E and FBandingkan tenaga egativ zarah-zarah pada titik E dan F.
...[1 mark][1 markah]
For
Examiners
Use
1(b)(iii)
1(b)(i)
1(b)(ii)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
4/33
4541/2
4541/2 Copyright Reserved MARA 4 [See next pageCONFIDENTIAL
(iv) Draw the arrangement of particles of substance M at 60oC and
90oC.
Lukiskan susunan zarah-zarah bahan M pada suhu 60OC dan 90
OC.
60oC 90
oC
[2 marks][2 markah]
(c) Diagram 1.3 shows the structural formula of substance M.Rajah 1.3 menunjukkan formula struktur bahan M.
Diagram 1.3Rajah 1.3
(i) What is meant by molecular formula?Apakah yang dimaksudkan dengan formula molekul?
...
...[1 mark]
[1 markah]
(ii) State the molecular formula of substance M.Nyatakan formula molekul bahan M.
...[1 mark]
[1 markah]
For
Examiners
Use
1(b)(iv)
1(c)(i)
1(c)(ii)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
5/33
4541/2
4541/2 Copyright Reserved MARA 5 [See next pageCONFIDENTIAL
2 Diagram 2 shows the set up of apparatus of two types of cells.
Rajah 2 menunjukkan susunan radas dua jenis sel.
Cell ISel I
Cell IISel II
Diagram 2Rajah 2
(a) For the reaction in Cell I,Bagi tindak balas Sel I,
(i) State the energy change.Nyatakan perubahan tenaga
....
(ii) State one observation.Nyatakan satu pemerhatian
....[2 marks][2 markah]
(b) Identify the negative terminal ofKenalpasti terminal negatif di
Cell I : ..Sel I
Cell II : ..Sel II [2 marks]
[2 markah]
(c) For the reaction that occurs in Cell II:Bagi tindak balas yang berlaku di Sel II:
(i) What is the function of the porous pot?Apakah fungsi pasu berliang?
[1 mark]
[1 markah]
For
Examiners
Use
2(b)
2(c)(i)
2(a)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
6/33
4541/2
4541/2 Copyright Reserved MARA 6 [See next pageCONFIDENTIAL
(ii) State one observation.Nyatakan satu pemerhatian.
[1 mark]
[1 markah]
(iii) Write the overall ionic equationTulis persamaan ion keseluruhan
...[1 mark]
[1 markah]
(d) Zinc electrode and zinc sulphate solution in Cell II are replaced by iron
electrode and iron (II) sulphate solution.State the changes to the voltmeter reading. Explain your answer.
Elektrod zink dan larutan zink sulfat dalam sel II digantikan dengan elektrod ferum dan
larutan ferum (II ) sulfat,
Nyatakan perubahan kepada bacaan voltmeter. Terangkan jawapan anda..
[2 marks][2 markah]
For
Examiners
Use
2(d)
2(c)(ii)
2(c)(iii)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
7/33
4541/2
4541/2 Copyright Reserved MARA 7 [See next pageCONFIDENTIAL
3 Diagram 3 shows the apparatus set-up for the preparation of zinc sulphate fromzinc carbonate and an acid.
Rajah 3 menunjukkan susunan radas untuk penyediaan zink sulfat daripada zink karbonat dengan
suatu asid.
Heat
Step 1 Step II
Step IV
Heat
Step III
Diagram 3Rajah 3
(a) What is meant by salt?Apakah yang dimaksudkan dengan garam?
[1 mark]
[1 markah]
(b) (i) Draw the diagram for step II in the box provided.Lukis gambar rajah untuk langkah II di dalam kotak yang disediakan.
[2 marks][2 markah]
(ii) What is the purpose of carrying out step II?Apakah tujuan melakukan langkah II?
[1 mark][1 markah]
For
Examiners
Use
3(b)(ii)
3(a)
3(b)(i)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
8/33
4541/2
4541/2 Copyright Reserved MARA 8 [See next pageCONFIDENTIAL
(c) (i) Name the acid used.Namakan asid yang digunakan.
[1 mark]
[1 markah]
(ii) Write the chemical equation for the reaction.Tuliskan persamaan kimia untuk tindak balas tersebut.
[2 marks][2 markah]
(d) The chart shows the reaction of zinc sulphate and metal X.Carta menunjukkan tindak balas antara zink sulfat dengan logam X.
(i) Suggest a name for metal X.Cadangkan nama untuk logam X.
[1 mark]
[1 markah]
(ii) What is observed when aqueous ammonia is added in excess tozinc sulphate solution?
Apakah yang diperhatikan apabila ammonia akueus ditambah kepada larutan
zink sulfat sehingga berlebihan?
[2 marks][2 markah]
3(d)(ii)
3(c)(i)
Zinc sulphateZink sulfat
X sulphate + zinc X sulfat + zink
+ X
3(d)(i)
3(c)(ii)
For
Examiners
Use
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
9/33
4541/2
4541/2 Copyright Reserved MARA 9 [See next pageCONFIDENTIAL
4 Vinegar is aqueous ethanoic acid. The concentration of ethanoic acid in the
vinegar was determined by titrating the vinegar with 0.10 mol dm-3
sodium
hydroxide solution using phenolphthalein as an indicator. The result of the
experiment is shown in Table 4.
Cuka adalah larutan asid etanoik. Kepekatan asid etanoik dalam cuka ditentukan melalui
pentitratan dengan 0.10 mol dm -3 larutan natrium hidroksida dengan menggunakan fenoftaleinsebagai penunjuk. Keputusan eksperimen di tunjukkan dalam Jadual 4.
The following equation represents the reaction:Persamaan berikut mewakili tindak balas tersebut:
CH3COOH + NaOH CH3COONa + H2O
Titration IPenitratan I
Titration IIPenitratan II
Titration IIIPenitratan III
Initial burette reading / cm3Bacaan awal buret
0.00 23.40 0.00
Final burette reading / cm3
Bacaan akhir buret23.40 47.00 23.50
Volume of NaOH used / cm3
Isipadu NaOH digunakan
Table 4Jadual 4
(a) Ethanoic acid is a weak acid.
What is meant by weak acid?Asid etanoik adalah asid lemah.
Apakah dimaksudkan dengan asid lemah.
[1 mark]
[1 markah]
(b) State the colour change of phenolphthalein at the end point.Nyatakan perubahan warna fenolftalein pada takat akhir.
[1 mark]
[1 markah]
(c) (i) Complete Table 4 by calculating the volume of sodium hydroxide
solution used in each titration Lengkapkan Jadual 4 dengan menghitung isipadu larutan natrium hidroksida
yangdigunakan dalam setiap pentitratan.[1 mark]
[1 markah]
For
Examiners
Use
4(c)(i)
4(a)
4(b)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
10/33
4541/2
4541/2 Copyright Reserved MARA 10 [See next pageCONFIDENTIAL
(ii) Calculate the average volume of 0.10 mol dm-3
of sodium
hydroxide solution used to neutralize 25.00 cm3
of vinegar.Hitung isipadu purata larutan natrium hidroksida 0.10 mol dm
-3yang digunakan
untuk meneutralkan 25.00 cm3
cuka.
[1 mark][1 markah]
(d) (i) Calculate the number of moles of sodium hydroxide used to
neutralize 25.0 cm3
of vinegar.Hitung bilangan mol natrium hidroksida yang digunakan untuk meneutralkan
25.00 cm3
cuka.
[1mark][1 markah]
(ii) Calculate the concentration of ethanoic acid in the vinegar.Hitung kepekatan asid etanoik dalam cuka..
[3 marks][3 markah]
4(c)(ii)
4(d)(i)
4(d)(ii)
For
Examiners
Use
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
11/33
4541/2
4541/2 Copyright Reserved MARA 11 [See next pageCONFIDENTIAL
(e) The experiment is repeated using 0.10 mol dm-3
of barium hydroxide to
replace sodium hydroxide.
Predict the volume of barium hydroxide solution required to neutralize
25.00 cm3
of vinegar.
Explain your answer. Eksperimen diulangi menggunakan larutan barium hidroksida 0.10 mol dm
-3
menggantikan larutan natrium hidroksida..
Ramalkan isipadu larutan barium hidroksida yang diperlukan untuk menutralkan 25.00cm
3cuka.
Terangkan jawapan anda.
[2 marks][2 markah]
4(e)
For
Examiners
Use
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
12/33
4541/2
4541/2 Copyright Reserved MARA 12 [See next pageCONFIDENTIAL
5 In an experiment, 50.0 cm3
of hydrogen peroxide solution is mixed with 1.0 g of
manganese(IV) oxide powder. The total volume of oxygen gas liberated is
measured at 30 seconds intervals.
Table 5 shows the result of the experiment.
Dalam satu eksperimen, 50.0 cm3larutan hydrogen peroksida di campurkan dengan 1.0g serbuk
mangan(IV) oksida. Jumlah isipadu gas oksigen yang dibebaskan diukur setiap 30 saat.
Jadual 5 menunjukkan keputusan ekperimen.
Time (s)Masa (s) 0 30 60 90 120 150 180 210
Volume of oxygen (cm3)
Isipadu oksigen (cm3) 00.00 12.50 17.50 23.00 26.00 28.00 30.00 30.00
Table 5Jadual 5
(a) What is the function of manganese(IV) oxide?Apakah fungsi mangan(IV) oksida?
[1 mark]
[1 markah]
(b) Write a balanced chemical equation for the decomposition of hydrogen
peroxide.
Tulis persamaan kimia seimbang bagi penguraian hidrogen peroksida.
[1 mark]
[1 markah]
(c) Plot a graph of the volume of oxygen gas against time on page 13.Plotkan graf isipadu gas oksigen melawan masa pada muka surat 13.
[3 marks][3 markah]
(d) How long does it take for the decomposition of hydrogen peroxide to be
completed?Berapa lamakah masa yang diambil untuk penguraian lengkap hidrogen peroksida?
[1 mark]
[1 markah]
5(b)
5(d)
For
Examiners
Use
5(a)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
13/33
4541/2
4541/2 Copyright Reserved MARA 13 [See next pageCONFIDENTIAL
Graph of the volume of oxygen gas against timeGraf isipadu gas oksigen melawan masa
5(c)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
14/33
4541/2
4541/2 Copyright Reserved MARA 14 [See next pageCONFIDENTIAL
(e) From the graph obtained in (c), calculate:Daripada graf yang diperolehi dalam (c), hitungkan ;
(i) the instantaneous rate of reaction at 30th
second.
kadar tindak balas pada saat ke 30
[2 marks][2 markah]
(ii) the average rate of reaction for the first 90 secondskadar tindak balas purata untuk 90 minit pertama
[1 mark][1 markah]
(f) The experiment is repeated using 2.0 g of manganese(IV) oxide. The
reaction stops at 120 seconds.
Explain.Eksperimen diulangi menggunakan 2.0 g mangan(IV) oksida. Tindak balas berhenti pada
120 saat.
Terangkan.
[2 marks][2 markah]
For
Examiners
Use
5(e)(ii)
5(f)
5(e)(i)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
15/33
4541/2
4541/2 Copyright Reserved MARA 15 [See next pageCONFIDENTIAL
6 Diagram 6 shows the apparatus set-up to determine the heat of displacement of
copper from its salt solution by lead powder. Rajah 6 menunjukkan susunan radas untuk menentukan haba penyesaran kuprum daripada
larutan garamnya oleh serbuk plumbum.
Diagram 6Rajah 6
50 cm3
of 0.2 mol dm-3
copper(II) sulphate is poured into a polystyrene cup. The
initial temperature of the solution is recorded.
Excess lead powder is added into the copper(II) sulphate solution, stirred and the
maximum temperature is recorded.
Table 6 shows the result of the experiment.
50 cm3
larutan kuprum(II) sulfat 0.2 mol dm-3
dimasukkan ke dalam sebuah cawan polistirena.Suhu awal larutan direkodkan.
Serbuk plumbum berlebihan ditambah ke dalam larutan kuprum(II) sulfat, campuran dikacau dan
suhu tertinggi larutan direkodkan..
Jadual 6 menunjukkan keputusan eksperimen
Initial temperature /oC
Suhu awal28.0
Maximum temperature /oC
Suhu tertinggi33.0
Jadual 6Table 6
(a) Give one suggestion on how the above apparatus can be improved to get a
better result. Berikan satu cadangan bagaimana radas di atas dapat diperbaiki untuk mendapatkan
keputusan yang lebih baik.
[1 mark]
[1 markah]
For
Examiners
Use
6(a)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
16/33
4541/2
4541/2 Copyright Reserved MARA 16 [See next pageCONFIDENTIAL
(b) What is meant by the heat of displacement of copper by lead?Apakah yang dimaksudkan dengan haba penyesaran kuprum oleh plumbum?
[1 mark][1 markah]
(c) Write the ionic equation for the reaction.Tuliskan persamaan ion bagi tindak balas tersebut..
[1 mark]
[1 markah]
(d) (i) Calculate the number of moles of copper(II) ions reacted.Hitung bilangan mol ion kuprum(II) yang disesarkan..
[1 mark][1 markah]
(ii) Calculate the amount of heat released in the experiment.
[Density of solution = 1.0 g cm-3
and specific heat capacity of
water = 4.2 J g-1o
C-1
]Hitung jumlah haba yang dibebaskan dalam eksperimen..
[ Ketumpatan larutan = 1.0 g cm3
dan
muatan haba tentu larutan air = 4.2J g-1
oC
-1]
[1 mark]
[1 markah]
For
Examiners
Use
6(b)
6(c)
6(d)(i)
6(d)(ii)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
17/33
4541/2
4541/2 Copyright Reserved MARA 17 [See next pageCONFIDENTIAL
(iii) Calculate the heat of displacement of copper by lead.Hitung haba penyesaran bagi kuprum oleh plumbum.
[1 mark][1 markah]
(e) Draw the energy level diagram for the reaction.Lukis gambar rajah aras tenaga bagi tindak balas.
[2 marks][2 markah]
(f) What happens to the temperature change if lead powder is replaced by
magnesium powder?
Explain.Apakah berlaku kepada perubahan suhu jika serbuk plumbum digantikan dengan serbuk
magnesium?
Terangkan.
[3 marks]
[3 markah]
For
Examiners
Use
6(d)(iii)
6(e)
6(f)
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
18/33
4541/2
4541/2 Copyright Reserved MARA 18 [See next pageCONFIDENTIAL
Section BBahagian B
[20 marks]
[20 markah]
Answer any one question from this section.Jawab mana-manasatusoalan daripada bahagian ini..
7 (a) Diagram 7.1 shows the position of chlorine and iodine in the PeriodicTable of Elements.
Rajah 7.1 menunjukkan kedudukan klorin dan iodin di dalam Jadual Berkala Unsur.
Cl
I
Diagram 7.1Rajah 7.1
Which group does these elements belongs to?
Explain why chlorine is more reactive than iodine.
Dalam kumpulan manakah unsur ini terletak?
Terangkan mengapa klorin lebih reaktif berbanding iodin?
[4 marks]
[4 markah]
(b) Diagram 7.2 shows the reaction between potassium with water. The
experiment is repeated using sodium to replace potassium.
Observations are recorded in Table 7.1
Rajah 7.2 menunjukkan tindak balas antara kalium dengan air. Eksperimen di ulangi
menggunakan natrium menggantikan kalium.
Permerhatian dicatatkan di dalam jadual 7.1
Diagram 7.2Rajah 7.2
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
19/33
4541/2
4541/2 Copyright Reserved MARA 19 [See next pageCONFIDENTIAL
ElementUnsur
Proton
numberNombor proton
ObservationPemerhatian
PotassiumKalium
19
Metal moves very vigorously on the surface of
water.Colourless solution formed and changed red litmus
paper blue.Bergeraksangat cergas di permukaan air.
Larutan tanpa warna yang terhasil menukarkan warna
kertaslitmus merah kepada biru
SodiumNatrium
11
Metal moves vigorously on the surface of water
with a hissing sound.Colourless solution is formed and changed red
litmus paper blue.Bergerak cergas di permukaan air dengan bunyi hiss.Larutan tanpa warna terbentuk menukarkan kertas litmus
merah kepada biru
Table 7.1
Jadual 7.1
(i) Based on the proton number, explain why both elements show
similar chemical properties.Berdasarkan nombor proton, terangkan mengapa kedua-dua unsur menunjukkan
sifat kimia yang sama.
[2 marks][2 markah]
(ii) Write a balanced chemical equation for the reaction between
potassium and water.Tulis persamaan kima seimbang untuk tindak balas kalium dan air.
[2 marks][2 markah]
(iii) Describe briefly why the solutions obtained in both reactions turns
red litmus paper blue.
Terangkan secara ringkas mengapa larutan yang diperolehi menukarkan kertaslitmus merah kepada biru.
[2 marks]
[2 markah]
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
20/33
4541/2
4541/2 Copyright Reserved MARA 20 [See next pageCONFIDENTIAL
(c) Table 7.2 shows the proton number of four elements.Jadual 7.2 menunjukkan bilangan proton bagi empat unsur..
Element
Unsur
Proton Number
Bilangan proton
C 6
Na 11
O 8
Table 7.2Jadual 7.2
Explain how bonds are formed when:
Terangkan bagaimana ikatan terbentuk apabila:
(i) Na reacts with O to form a compound P.Na bertindak balas dengan O membentuk sebatian P.
(ii) C reacts with O to form a compound Q.C bertindak balas dengan O membentuk sebatian Q.
Your answer must include diagrams showing the electron arrangement of
compounds P and Q. Jawapan anda mesti termasuk gambar rajah yang menunjukkan susunan electron bagi
sebatian P dan Q. [10 marks][10 markah]
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
21/33
4541/2
4541/2 Copyright Reserved MARA 21 [See next pageCONFIDENTIAL
8 (a) Diagram 8 shows the structural formula of chloroethene or vinyl chloride.Rajah 8 menunjukkan formula struktur bagi kloroetena atau vinil klorida.
Diagram 8Rajah 8
(i) Vinyl chloride can undergo polymerization. Suggest a name for the
polymer formed and write a chemical equation for the reaction.
Vinil klorida boleh mengalami pempolimeran. Cadangkan satu nama bagi
polimer terbentuk dan tulis persamaan kimia untuk tindak balastersebut.
[2 marks][2 markah]
(ii) Discuss the following statement:Bincang kenyataan berikut:
[3 marks][3 markah]
(b) Ammonia and sulphuric acid are two important chemicals produced in
chemical industries.
Ammonia gas reacts with aqueous sulphuric acid to form a nitrogenous
fertilizer as shown in the equation.
Ammonia dan asid sulfurik adalah dua bahan kimia penting dihasilkan oleh industri
kimia.
Gas ammonia bertindak balas dengan asid sulfurik membentuk baja bernitrogen seperti
yang ditunjukkan oleh persamaan.
2NH3 + H2SO4 (NH4)2 SO4
Calculate the mass of ammonium sulphate produced when an excess
ammonia gas is passed into 100 cm3
of 2.0 mol dm-3
of aqueous sulphuric
acid solution.
[Molar mass of ammonium sulphate = 132 g mol-1
]
Hitung jisim ammonium sulfat dihasilkan apabila gas ammonia berlebihan dialirkan ke
dalam 100 cm3
asid sulfurik 2.0 mol dm-3
.
[Jisim molekul relatif ammonium sulfat = 132 g mol-1
]
[3 marks]
[3 markah]
H H
C = C H Cl
The usage of synthetic polymer causes environmental pollution.
Kegunaan polimer sintetik menyebabkan pencemaran alam sekitar
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
22/33
4541/2
4541/2 Copyright Reserved MARA 22 [See next pageCONFIDENTIAL
(c) Pure aluminium rod is malleable while duralumin which is made of 95%aluminium and 5% copper is not.Explain how the difference in the composition contributes to the difference in
properties of aluminium and duralumin.
Rod aluminium tulen mudah dibengkokkan tetapi duralumin yang dibuat daripada 95%aluminium dan 5% kuprum sukar dibengkokkan
Terangkan bagaimana perbezaan komposisi membezakan sifat aluminium dan duralumin.
[5 marks][5 markah]
(d) The equation below shows the ionization of a sodium soap molecule in water.Persamaan di bawah menunjukkan pengionan molekul sabun natrium di dalam air.
Soap becomes less effective when the cleaning is carried out in acidic water.
Explain.Sabun menjadi kurang berkesan apabila pencucian menggunakan air berasid. Terangkan.
[2 marks][2 markah]
(e) Amphicillin is an antibiotic. Patients are advised to finish the whole course of
antibiotic prescribed even though he/she has recovered from the sickness.
Explain. Ampisilin adalah antibiotik. Pesakit dinasihatkan untuk menghabiskan ubat tersebut
walaupun penyakitnya sudah sembuh.
Terangkan.
[3 marks][3 markah]
(f) The structural formula of aspirin is shown below.Formula struktur aspirin ditunjukkan di bawah.
Explain why aspirin is not advisable to be prescribed to patient with gastric
problem.Terangkan mengapa aspirin tidak digalakkan kepada pesakit yang mengalami penyakit
gastrik.
[2 marks][2 markah]
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
23/33
4541/2
4541/2 Copyright Reserved MARA 23 [See next pageCONFIDENTIAL
Section CBahagian C
[20 marks]
[20 markah]
Answer any one question from this sectionJawab mana-manasatu soalan.daripada bahagian ini.
9 (a) Tin (stanum) is used to electroplate food can in industries.
Explain why food in a dented can should not be consumed.
Stanum digunakan untuk menyadur tin makanan dalam industri.
Terangkan mengapa makanan dalam tin yang kemek tidak boleh dimakan.
[4 marks][4 markah]
(b) Diagram 9 shows two electrolytic cells using different electrodes.
Rajah 9 menunjukkan dua sel elektrolisis menggunakan elektrod berbeza.
Cell I Cell IISel 1 Sel II
Diagram 9.1Rajah 9.1
Compare and contrast Cell I and Cell II.
Your answer should include observation and half equation for the reactionat both electrodes.
Bandingbezakan Sel I dan Sel II.
Jawapan anda mesti mengandungi pemerhatian dan setengah persamaan bagi tindak
balas yang berlaku di kedua-dua elektrod .
[6 marks]
[6 markah]
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
24/33
4541/2
4541/2 Copyright Reserved MARA 24 [See next pageCONFIDENTIAL
(c) Based on the above statement, describe an experiment to verify the
reaction that occured is a redox reaction.
Berdasarkan kenyataan di atas, huraikan satu eksperimen untuk membuktikan tindak
balas yang berlaku merupakan tindak balas redoks.
In your description, includePenerangan anda mestilah mengandungi
ProcedureProsedur
Confirmatory testUjian pengesahan
Explanation on oxidation and reduction processesPenerangan tentang proses pengoksidaan dan penurunan
Ionic equationPersamaan ion
[10 marks][10 markah]
The displacement of iodine, I2 from potassium iodide, KI solution
is a redox reaction
Penyesaran iodin,I2 daripada larutan kalium iodida, KIadalah tindak balas redoks
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
25/33
4541/2
4541/2 Copyright Reserved MARA 25 [See next pageCONFIDENTIAL
10 (a) Methanoic acid is used in rubber industries to coagulate latex.
It reacts with magnesium according to the following equation: Asid metanoik digunakan dalam industri getah untuk membekukan lateks. Asid ini
bertindak balas dengan magnesium mengikut persamaan berikut:
2 HCOOH + Mg (HCOO)2Mg + H2[Relative Atomic Mass: C=12; O=16; H=1;
molar volume of gas at room temperature and pressure is 24 dm3
mol-1
]
[Jisim atom relatif: C;12, O;16, H;1. isipadu molar sebarang gas pada suhu dan tekananbilik adalah 24 dm
3mol
-1]
(i) Calculate the maximum volume of hydrogen gas released if 50 cm3
of 0.2 mol dm-3
methanoic acid is reacted with 5 g magnesium.Hitung isipadu maksima gas hidrogen yang terbebas jika 50 cm
3asid metanoik
0.2 mol dm-3
bertindak balas dengan 5 g serbuk magnesium. [3 marks][3 markah]
(ii) A sweet smelling substance is formed when methanoic acid is
reacted with ethanol, C2H5OH.
Name the substance and draw the structural formula. Apabila asid metanoik bertindak balas dengan etanol, C2H5OH membentuk
ester.
Namakan dan lukis formula struktur ester tersebut [2 marks]
[2 markah]
(b) Natural rubber is obtained from rubber tree as shown in Diagram 10.1.
Aeroplane tyres as shown in Diagram 10.2 are produced by vulcanizing
the natural rubber.Compare the following properties between natural rubber and vulcanized
rubber
Elasticity
Heat resistance
Explain the differencesGetah asli diperolehi dari pokok getah seperti ditunjukkan dalam Rajah 10.1. Tayar
kapalterbang seperti dalam Rajah 10.2 dihasilkan melalui penvukanan getah asli.
Bandingkan sifat berikut antara getah asli dan getah tervulkan.
Kekenyalan
Tahan haba
Terangkan perbezaan tersebut. [5 marks][5 markah]
Diagram 10.1 Diagram 10.2
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
26/33
4541/2
4541/2 Copyright Reserved MARA 26 [See next pageCONFIDENTIAL
(c) Alcohol can undergo dehydration process as follows:Alkohol boleh mengalami proses pendehidratan seperti berikut:
Describe a laboratory experiment to carry out the dehydration of a named
alcohol. Huraikan satu eksperimen untuk menjalankan proses pendehidratan bagi satu alkohol
yang dinamakan.
Your answer should include:Jawapan anda mesti mengandungi:
Procedure
Prosedur
EquationPersamaan
Confirmation of productPengesahan hasil
[10 marks][10 markah]
END OF QUESTION PAPERKERTAS SOALAN TAMAT
Hydrocarbon
Hidrokarbon
Alcohol
Alkohol
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
27/33
4541/2
4541/2 Copyright Reserved MARA 27 [See next pageCONFIDENTIAL
SPACE FOR YOUR ANSWERS / RUANG JAWAPAN
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
........
....
....
....
....
....
For
Examiners
Use
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
28/33
4541/2
4541/2 Copyright Reserved MARA 28 [See next pageCONFIDENTIAL
SPACE FOR YOUR ANSWERS / RUANG JAWAPAN
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
........
....
....
....
....
....
For
ExaminersUse
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
29/33
4541/2
4541/2 Copyright Reserved MARA 29 [See next pageCONFIDENTIAL
SPACE FOR YOUR ANSWERS / RUANG JAWAPAN
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
........
....
....
....
....
....
For
Examiners
Use
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
30/33
4541/2
4541/2 Copyright Reserved MARA 30 [See next pageCONFIDENTIAL
SPACE FOR YOUR ANSWERS / RUANG JAWAPAN
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
........
....
....
....
....
....
For
ExaminersUse
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
31/33
4541/2
4541/2 Copyright Reserved MARA 31 [See next pageCONFIDENTIAL
SPACE FOR YOUR ANSWERS / RUANG JAWAPAN
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
....
........
....
....
....
....
....
For
Examiners
Use
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
32/33
4541/2
4541/2 Copyright Reserved MARA 32 [See next pageCONFIDENTIAL
INFORMATION FOR CANDIDATESMAKLUMAT UNTUK CALON
1.
This question paper consists ofthree sections: Section A, Section B and SectionC.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 the question paper.Jawabsemua soalan dalamBahagian A. Tuliskan jawapan bagi Bahagian Adalam ruang yang
disediakan dalam kertas soalan.
3. Answer one question from Section B and one question from Section C. Write
your answers for Section B and Section C on the lined pages at the end of the
question paper. Answer questions in Section B and Section C in detail. You mayuse equations, diagrams, tables, graphs and other suitable methods to explain your
answer.Jawap satu soalan daripada Bahagian B dan satu soalan daripada Bahagian C. Tuliskan
jawapan bagiBahagian B dan Bahagian Cpada halaman bergaris di bahagian akhir kertas
soalan ini. Jawab Bahagian B dan Bahagian Cdengan terperinci. Anda boleh menggunakan
persamaan, gambar 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.
If you wish to cancel any answer, neatly cross out the answer.Sekiranya anda hendak membatalkan sesuatu jawapan, buat garisan di atas jawapan itu.
6. The diagrams in the questions are not drawn to scale unless stated.Rajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali dinyatakan.
7. Marks allocated for each question or part question are shown in brackets. Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam
kurungan.
8. The time suggested to complete Section A is 90 minutes, Section B is 30 minutes
and Section C is 30 minutesMasa yang dicadangkan untuk menjawabBahagian A ialah 90 minit, Bahagian B ialah 30 minit
danBahagian C ialah 30 minit.
9. You may use a nonprogrammable scientific calculator.Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan.
10. Hand in all your answer sheets at the end of the examination.Serahkan semua kertas jawapan anda di akhir peperiksaan.
-
8/14/2019 SPM Percubaan 2008 MRSM Chemistry Paper 2
33/33
4541/2