Ppt kimia ting 5 paper 2 (2018) question paper

SULIT NAMA: _______________________________________________________ KELAS: ______________________________________________________

SEKOLAH MENENGAH KEBANGSAAN SULTAN YUSSUF BATU GAJAH, PERAK

PEPERIKSAAN PERTENGAHAN TAHUN

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CHEMISTRY Tingkatan 5 Kertas 2 Mei 1 ½ jam

Satu jam tiga puluh minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU Untuk Kegunaan Pemeriksa 1. Tulis nama dan kelas pada ruangan Kod Pemeriksa: yang disediakan.

Bahagian Soalan 2. Kertas soalan ini adalah dalam dwibahasa.

1 3. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu.

A

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.

B C

Markah Penuh

Markah Diperoleh

9

2

9

3

10

4

10

5

11

6

11

7

20

8

20

9

20

10

20

Jumlah Kertas soalan ini mengandungi 24 halaman bercetak

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For Examiner’s Use

SULIT 1

2

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Diagram 1 shows the arrangement of atoms in two types of copper alloy.

Rajah 1 menunjukkan susunan atom dalam dua jenis aloi kuprum.

Diagram / Rajah 1 (a)

1(a)

State the meaning of alloy.

Nyatakan maksud aloi. .............................................................................................................................

1

.............................................................................................................................

[1 mark / markah] (b)

1(b) 1

.............................................................................................................................

[1 mark / markah] (c)

1(c)

State the name of alloy X. Nyatakan nama aloi X.

1

State the name of atom M. Nyatakan nama atom M. .............................................................................................................................

[1 mark / markah]

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SULIT (d)

3

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What is the difference in terms of hardness between bronze and pure copper?

Explain your answer.

Apakah perbezaan dari segi kekerasan antara gangsa dan kuprum tulen?

Terangkan jawapan anda.

For Examiner’s Use

.............................................................................................................................

1(d) .............................................................................................................................

3

.............................................................................................................................

[3 marks / markah] (e)

Pewter is also an example of alloy. State one use of pewter.

Piuter juga merupakan satu contoh aloi. Nyatakan satu kegunaan piuter.

1(e) 1

.............................................................................................................................

[1 mark / markah] (f)

State two types of glass used to make laboratory glassware.

Nyatakan dua jenis kaca yang digunakan untuk membuat barangan kaca makmal.

1(f) ............................................................................................................................. .............................................................................................................................

[2 marks / markah]

2

A1 9

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SULIT 2

4

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Diagram 2.1 shows Puan Aminah frying chicken in the kitchen, while Ali and his father are in the living room.

Rajah 2.1 menunjukkan Puan Aminah sedang menggoreng ayam di dapur, manakala Ali dan ayahnya berada di ruang tamu.

Diagram / Rajah 2.1 (a)

(i)

2(a)(i) 1

The smell of fried chicken spreads to the living room. Name the process that occured.

Bau ayam goreng merebak sehingga ke ruang tamu. Namakan proses yang berlaku. ...................................................................................................................

[1 mark / markah]

(ii)

Explain your answer in 2(a)(i) using kinetic theory of matter.

Terangkan jawapan anda di 2(a)(i) menggunakan teori kinetik jirim. ...................................................................................................................

2(a)(ii) ...................................................................................................................

3

...................................................................................................................

[3 marks / markah]

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SULIT (b)

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Diagram 2.2 shows the heating curve for solid naphthalene.

Rajah 2.2 menunjukkan lengkung pemanasan bagi pepejal naftalena.

Diagram / Rajah 2.2 (i)

(ii)

For Examiner’s Use

2(b)(i)

Label the melting point of naphthalene on the graph in Diagram 2.2.

Label takat lebur naftalena pada graf dalam Rajah 2.2.

[1 mark / markah]

1

Draw the electron arrangement of particles of naphthalene at AB and CD. Lukis susunan elektron zarah-zarah naftalena pada AB dan CD.

2(b)(ii) AB

2

CD [2 marks / markah]

(iii) Explain why the temperature remains constant from B to C. Terangkan mengapa suhu kekal malar dari B ke C. ...................................................................................................................

2(b)(iii) ................................................................................................................... ...................................................................................................................

[2 marks / markah]

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2 A2 9

For Examiner’s Use

SULIT 3

6

Table 3 shows three elements and their respective proton number.

Jadual 3 menunjukkan tiga unsur dan nombor proton masing-masing.

Element Unsur P Q R

(a)

3(a)

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1

Proton number Nombor proton 9 17 35 Table / Jadual 3

State the group for the elements.

Nyatakan kumpulan bagi unsur-unsur itu. .............................................................................................................................

[1 mark / markah]

(b) 3(b)

Write the electron arrangement of atom P and atom Q. Tulis susunan elektron atom P dan atom Q. Atom P : ……………………………………………………………………….

2

Atom Q : ………………………………………………………………………

[2 marks / markah] (c)

Based on your answer in 3(b), deduce the period in the Periodic Table where the elements are located.

Berdasarkan jawapan anda pada 3(b), tentukan kala dalam Jadual Berkala di mana unsur-unsur ini terletak.

Element P Unsur P : …………………………………………………………………….

3(c)

Element Q Unsur Q : ……………………………………………………………………

[2 marks / markah]

2

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SULIT (d)

7

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The number of neutrons of atom Q is 19. Write the symbol for atom Q in the

For Examiner’s Use

form of .

Bilangan neutron atom Q ialah 19. Tulis simbol bagi atom Q dalam bentuk 3(d) .

1

.............................................................................................................................

[1 mark / markah] (e)

As you go down the group of the elements from P to R, state the change in terms of: Apabila menuruni kumpulan unsur daripada P kepada R, nyatakan perubahan dari segi : (i)

3(e)(i)

Size of atom Saiz atom

1

...................................................................................................................

[1 mark / markah] (ii)

3(e)(ii)

Electronegativity Keelektronegatifan

1

...................................................................................................................

[1 mark / markah] (f)

Iron glows brightly when reacting with element Q. Write the chemical equation for the reaction.

Besi membara dengan terang apabila bertindak balas dengan unsur Q. Tulis persamaan kimia bagi tindak balas itu. .............................................................................................................................

[2 marks / markah]

3(f) 2 A3 10

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For Examiner’s Use

SULIT 4

8

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Table 4 shows the apparatus set-up and observations for Experiment I and II. Jadual 4 menunjukkan susunan radas dan pemerhatian bagi Eksperimen I dan II. Experiment Eksperimen

I

II

Apparatus set-up Susunan radas

Grey solid formed at the Gas bubbles are released at the anode and Observation cathode cathode Pemerhatian Pepejal kelabu terbentuk di Gelembung gas terbebas di anod dan katod katod Table / Jadual 4 (a) 4(a)(i)

State all the ions present in Nyatakan semua ion yang hadir dalam (i)

1

Molten lead(II) bromide Leburan plumbum(II) bromida ...................................................................................................................

[1 mark / markah]

(ii)

4(a)(ii)

1

Sodium sulphate solution Larutan natrium sulfat ...................................................................................................................

[1 mark / markah]

(b)

Based on Experiment I, Berdasarkan Eksperimen I, (i)

4(b)(i) 1

Name the grey solid produced.

Namakan pepejal kelabu yang terbentuk. ...................................................................................................................

[1 mark / markah]

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9 (ii)

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Write the half-equation for the formation of the grey solid.

Tuliskan setengah persamaan bagi pembentukan pepejal kelabu.

For Examiner’s Use

4(b)(ii)

...................................................................................................................

[1 mark / markah]

1 4(b)(iii)

(iii) State the observation at the anode.

Nyatakan pemerhatian di anod.

1

...................................................................................................................

[1 mark / markah] (c)

Based on Experiment II, Berdasarkan Eksperimen II, (i)

Name the ion that is selectively discharged at the anode.

Namakan ion yang dipilih untuk dinyahcas di anod.

4(c)(i) 1

...................................................................................................................

[1 mark / markah] (ii)

State the product of electrolysis at anode and cathode.

Nyatakan hasil elektrolisis di anod dan katod.

Anode Anod : ………………………………………………………………….

4(c)(ii)

Cathode Katod : ………………………………………………………………….

[2 marks / markah]

2

(iii) State the confirmatory test for the product at the anode.

Nyatakan ujian pengesahan hasil di anod. ...................................................................................................................

4(c)(iii) ................................................................................................................... ...................................................................................................................

[2 marks / markah]

2

A4 10

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SULIT 5

10

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Diagram 5 shows a flow chart for the formation of copper(II) salt solution and a series of its reaction.

Rajah 5 menunjukkan carta alir pembentukan larutan garam kuprum(II) dan satu siri tindak balasnya.

Excess copper(II) carbonate Kuprum(II) karbonat berlebihan I

+ Sulphuric acid + Asid sulfurik

Copper(II) salt + water + gas E Garam kuprum(II) + air + gas E filter turas Precipitate F Mendakan F

+ Barium nitrate solution Larutan barium nitrat II

Copper(II) salt solution Larutan garam kuprum(II)

+ Zinc powder + Serbuk zink III

Brown solid G Pepejal perang G

Diagram / Rajah 5 5(a)(i)

(a)

(i)

1

...................................................................................................................

[1 mark / markah] (ii)

Name the copper(II) salt and gas E that are produced in Reaction I. Namakan garam kuprum(II) dan gas E yang dihasilkan dalam Tindak balas I. Copper(II) salt Garam kuprum(II) : .................................................................................

Gas E Gas E : .................................................................................

[2 marks / markah]

(i)

Name Reaction II Namakan Tindak balas II

5(a)(ii) 2

5(b)(i)

State one observation in Reaction I. Nyatakan satu pemerhatian tindak balas I.

(b)

1

...................................................................................................................

[1 mark / markah]

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11 (ii)

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Write an ionic equation for the formation of precipitate F. Tulis persamaan ion bagi pembentukan mendakan F.

For Examiner’s Use

5(b)(ii)

...................................................................................................................

[1 mark / markah]

1

(iii) If 0.02 mol of precipitate F is formed, calculate the volume of 0.5 mol dm-3 barium nitrate solution used.

Jika 0.02 mol mendakan F terbentuk, hitung isi padu larutan barium nitrat 0.5 mol dm-3 yang digunakan.

5(b)(iii) 2 [2 marks / markah] (c)

5(c)

Write the chemical equation for Reaction III. Tulis persamaan kimia bagi Tindak balas III.

2

.............................................................................................................................

[2 marks / markah] (d)

Describe the confirmatory test to identify the anion in the copper(II) salt solution.

Huraikan ujian pengesahan untuk mengenal pasti anion dalam larutan garam kuprum(II). .............................................................................................................................

5(d) ............................................................................................................................. .............................................................................................................................

[2 marks / markah]

2 A5 11

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For Examiner’s Use

SULIT 6

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Two experiments were carried out to investigate factors that affect the rate of reaction. Table 6 shows the description of each experiment.

Dua eksperimen dijalankan untuk mengkaji faktor yang mempengaruhi kadar tindak balas. Jadual 6 menunjukkan penerangan setiap eksperimen,

Experiment Eksperimen

I

II

(a)

Reactant Bahan tindak balas

Total volume of gas collected in 2 minutes / cm3 Jumlah isi padu gas yang dikumpul dalam 2 minit / cm3

Temperature / °C Suhu / °C

Excess zinc powder + 20 cm3 of 0.1 mol dm-3 sulphuric acid 30 Serbuk zink berlebihan + 20 cm3 asid sulfurik 0.1 mol dm-3 Excess zinc powder + 20 cm3 of 0.1 mol dm-3 sulphuric acid + copper(II) sulphate solution 30 Serbuk zink berlebihan + 20 cm3 asid sulfurik 0.1 mol dm-3 + larutan kuprum(II) sulfat Table / Jadual 6

20.0

32.0

Draw the apparatus set-up to carry out Experiment I. Lukis susunan radas untuk menjalankan Eksperimen I.

6(a) 2 [2 marks / markah]

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(b)

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For Examiner’s Use

Calculate the average rate of reaction for the first two minutes for both reactions.

Hitung kadar tindak balas purata bagi dua minit pertama untuk kedua-dua tindak balas.

Experiment I Eksperimen I

Experiment II Eksperimen II

6(b) 2 [2 marks / markah] (c)

Calculate the maximum volume of gas produced in Experiment II. [Molar volume of gas = 24 dm3 mol-1 at room conditions] Hitung isi padu maksimum gas yang dihasilkan dalam Eksperimen II. [Isi padu molar gas = 24 dm3 mol-1 pada keadaan bilik]

6(c) 3 [3 marks / markah]

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SULIT (d)

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Compare the rate of reaction between Experiment I and Experiment II based on collision theory.

Bandingkan kadar tindak balas antara Eksperimen I dan Eksperimen II berdasarkan teori perlanggaran. ............................................................................................................................. .............................................................................................................................

6(d) .............................................................................................................................

4

.............................................................................................................................

[4 marks / markah]

A6 11

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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)

Diagram 7.1 shows how compound M is formed from ethanoic acid and propanol.

Rajah 7.1 menunjukkan bagaimana sebatian M dibentuk daripada asid etanoik dan propanol.

Ethanoic acid + Propanol Asid etanoik + Propanol Concentrated H2SO4 H2SO4 pekat Compound M Sebatian M Diagram / Rajah 7.1 Based on Diagram 7.1, Berdasarkan Rajah 7.1, (i)

(ii)

state the role of concentrated H2SO4. nyatakan peranan H2SO4 pekat.

[1 mark / markah] name the reaction to prepare compound M. namakan tindak balas untuk menyediakan sebatian M. [1 mark / markah]

(iii) write the chemical equation for the reaction. tulis persamaan kimia bagi tindak balas itu.

[2 marks / markah] (iv) draw the structural formula and give the name for compound M. lukis formula struktur dan berikan nama bagi sebatian M. [2 marks / markah] (v)

state two special characteristics of compound M. nyatakan dua ciri istimewa sebatian M. [2 marks / markah]

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(vi) draw the structural formulae of two isomers of propanol. lukis formula struktur bagi dua isomer propanol.

[2 marks / markah] (b)

Table 7.2 shows the results of latex coagulation.

Jadual 7.2 menunjukkan keputusan penggumpalan lateks.

Materials Observation Bahan Pemerhatian Latex Latex coagulates Lateks Lateks menggumpal Latex + ammonia solution Latex does not coagulate Lateks + larutan ammonia Lateks tidak menggumpal Table / Jadual 7.2

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(i)

Explain why there is a difference in the observations.

Terangkan mengapa terdapat perbezaan dalam pemerhatian itu.

[6 marks / markah]

(ii)

Explain how vulcanization of rubber improves the weakness of natural rubber.

Terangkan bagaimana pemvulkanan getah memperbaiki kelemahan getah asli [4 marks / markah]

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SULIT 8

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Diagram 8 shows a flow chart for the reactions of propan-1-ol.

Rajah 8 menunjukkan satu carta alir bagi tindak balas propan-1-ol.

Compound X Sebatian X

Reaction I Tindak balas I Porcelain chips Serpihan porselin

Reaction II Tindak balas II Propan-1-ol

Acidified KMnO4 KMnO4 berasid

Heated Panaskan

Compound Y Sebatian Y

Reaction III Tindak balas III + CH3COOH

Compound Z Sebatian Z

Diagram / Rajah 8 (a)

Draw the structural formula and state the name of compound X, Y and Z. Lukis formula struktur dan namakan sebatian X, Y dan Z. [6 marks / markah]

(b)

State the name of Reaction I and describe a chemical test to identify compound X. Nyatakan nama Tindak balas I dan huraikan ujian kimia untuk mengenal pasti sebatian X. [3 marks / markah]

(c)

Compound X can be converted into propan-1-ol. Write the chemical equation and state the condition needed for the reaction.

Sebatian X boleh ditukarkan menjadi propan-1-ol. Tulis persamaan kimia dan nyatakan keadaan yang diperlukan untuk tindak balas itu.

[3 marks / markah]

(d)

In Reaction III, describe the method of preparing compound Z in the laboratory.

Dalam Tindak balas III, huraikan kaedah menyediakan sebatian Z dalam makmal.

[4 marks / markah]

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SULIT (e)

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When calcium carbonate is added to compound Y, carbon dioxide gas is liberated.

Apabila kalsium karbonat ditambah kepada sebatian Y, gas karbon dioksida dibebaskan. (i)

State the name of the functional group of compound Y Nyatakan nama bagi kumpulan berfungsi sebatian Y

(ii)

Write the general formula of compound Y Tulis formula am bagi sebatian Y

(iii) Write the chemical equation of the reaction Tulis persamaan kimia bagi tindak balas itu [4 marks / markah]

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Section C Bahagian C [20 marks] [20 markah] Answer any one question from this section.

Jawab mana-mana satu soalan daripada bahagian ini.

9

(a)

Write two balanced chemical equations to show the chemical properties of an acid.

Tulis dua persamaan kimia seimbang untuk menunjukkan sifat kimia satu asid.

[2 marks / markah]

(b)

Diagram 9.1 shows the structural formula of methanoic acid.

Rajah 9.1 menunjukkan formula struktur asid metanoik.

Diagram / Rajah 9.1

(c)

(i)

Explain why methanoic acid is a weak acid.

Terangkan mengapa asid metanoik ialah asid lemah.

[2 marks / markah]

(ii)

Glacial methanoic acid does not conduct electricity but the aqueous methanoic acid does. Explain.

Asid metanoik glasial tidak mengkonduksikan elektrik tetapi asid metanoik akueus dapat mengkonduksikan elektrik. Terangkan.

[3 marks / markah]

Table 9.2 shows the pH values of different acids with the same concentration.

Jadual 9.2 menunjukkan nilai pH bagi asid berbeza dengan kepekatan yang sama.

Name of acid Nama asid Ethanoic acid Asid etanoik Nitric acid Asid nitrik

Concentration / mol dm-3 Kepekatan / mol dm-3

pH value Nilai pH

0.1

3.0

0.1

1.0

Table / Jadual 9.2

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Explain why the pH values of these acids are different.

Terangkan mengapa nilai pH asid-asid ini berbeza.

[4 marks / markah] (d)

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Describe a laboratory experiment to produce magnesium sulphate salt.

Huraikan satu eksperimen makmal untuk menghasilkan garam magnesium sulfat.

[9 marks / markah]

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SULIT 10

(a)

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Table 10 shows the electron arrangement for atoms P, Q and R. Jadual 10 menunjukkan susunan elektrom atom P, Q dan R. Atom Atom Electron arrangement Susunan elektron

P

Q

R

2.8.1

2.8.7

2.4

Table / Jadual 10 An ionic compound is formed when atoms P and Q are joined together whereas a covalent compound is formed when atoms Q and R are joined together.

Describe the formation of both the ionic and covalent compounds.

Satu sebatian ion terbentuk apabila atom P dan atom Q berpadu manakala satu sebatian kovalen terbentuk apabila atom Q dan atom R berpadu.

Terangkan pembentukan kedua-dua sebatian ion dan sebatian kovalen.

[10 marks / markah] (b)

Describe an experiment to compare the melting point of a named ionic compound and a named covalent compound.

Huraikan satu eksperimen untuk membandingkan takat lebur satu sebatian ion yang dinamakan dan satu sebatian kovalen yang dinamakan.

Your answer should include the following: Jawapan anda perlu mengandungi perkara berikut: (i)

Lists of apparatus and materials Senarai radas dan bahan

(ii)

Procedure of the experiment Prosedur eksperimen

(iii) Result of the experiment Keputusan eksperimen [10 marks / markah] END OF QUESTION PAPER KERTAS SOALAN TAMAT

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© 2018 Hak Cipta Panitia Kimia SMK Sultan Yussuf

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INFORMATION FOR CANDIDATES MAKLUMAT UNTUK CALON This question paper consists of three sections: Section A, Section B and Section C. Kertas 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 dalam Bahagian A. Tulis jawapan bagi Bahagian A dalam 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 testpad provided by the invigilators.

You may use equations, diagrams, tables, graphs and other suitable methods to explain your answers.

Jawab satu soalan daripada Bahagian B dan satu soalan daripada Bahagian C. Tulis jawapan bagi Bahagian B dan Bahagian C pada kertas kajang 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 provided are not drawn to scale unless stated.

Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

5. The marks allocated for each sub-part of a question are shown in brackets.

Markah yang diperuntukkan bagi setiap ceraian soalan ditunjukkan dalam kurungan.

6. Show your working. It may help you get marks.

Tunjukkan kerja mengira. Ini membantu anda mendapat markah.

7. If you wish to change your answer, cross out the answer that you have done. Then, write down the new answer.

Sekiranya anda hendak menukar jawapan, batalkan jawapan yang telah dibuat.

Kemudian, tulis jawapan yang baharu.

8. The Periodic Table of Elements is provided on page 22 and 23.

Jadual Berkala Unsur disediakan di halaman 22 dan 23.

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 dinasihatkan supaya mengambil masa 90 minit untuk menjawab soalan dalam Bahagian A, 30 minit untuk Bahagian B dan 30 minit untuk Bahagian C. 11. Tie the testpad together (answers for Section B and Section C) with this question paper and hand in to the invigilators at the end of the examination.

Ikat kertas kajang (jawapan bagi Bahagian B dan Bahagian C) bersama-sama kertas soalan ini dan serahkan kepada pengawas peperiksaan pada akhir peperiksaan.

1.

Disediakan oleh:

Disemak oleh:

Disahkan oleh:

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(CIK INTAN ZAREENA ZAHEDI)

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(PN. NURRUL ‘AINNI MD. TENI) Ketua Unit Kimia Tingkatan 6

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(PN. NORLIZA MD DERUS) Guru Kanan Sains

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Š 2018 Hak Cipta Panitia Kimia SMK Sultan Yussuf

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