Paper1-percubaan smj

4541/1Kimia Nama Pelajar : ………………………………………………….Kertas 1Ogos Tingkatan : ............................................................................20151 ¼ jam

SEKOLAH MENENGAH KEBANGSAAN JASINPEPERIKSAAN PERCUBAAN 2015

SIJIL PELAJARAN MALAYSIA

KIMIA

Kertas 1

Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

1. Kertas soalan ini adalah dalam dwibahasa

2. Setiap soalan mengandungi kedua-dua bahasa Inggeris dan bahasa Melayu. Bahagian atas dalam bahasa Inggeris dan diikuti di bawahnya oleh bahasa Melayu

3. Calon dikehendaki membaca maklumat di halaman 2.

Kertas soalan ini mengandungi 26 halaman bercetak

Disediakan oleh :

…………………………………(MUHAMAD SYAFIQ BIN

SUHIMI)

Disemak oleh :

…………………………………( KETUA PANITIA KIMIA)

Disahkan oleh :

…………………………………(GURU KANAN

MATAPELAJARAN)SAINS DAN MATEMATIK )

SULIT 4541/1

INFORMATION FOR CANDIDATES

1. This question paper consists of 50 questions.

2. Answer all questions.

3. Answer each question by blackening the correct space on the answer sheet.

4. Blacken only one space for each question.

5. If you wish to change your answer, erase the blackened mark that you have made. Then blacken the space for the new answer.

6. The diagrams in the questions provided are not drawn to scale unless stated.

7. You may use a non-programmable scientific calculator.

MAKLUMAT UNTUK CALON

1. Kertas soalan ini mengandungi 50 soalan.

2. Jawab semua soalan

3. Jawab dengan menghitamkan ruangan yang betul pada kertas jawapan.

4. Hitamkan satu ruangan sahaja bagi setiap soalan.

5. Sekiranya anda hendak menukarkan jawapan, padamkan tanda yang telah dibuat. Kemudian hitamkan jawapaan yang baru.

6. Rajah yang mengirimi soalan tidak dilukis mengikut skala kecuali dinyatakan.

7. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan

Question 1 to Question 50 are followed by four options A, B, C or D.Choose the best option for each question and blackened the corresponding space on the objective answer sheet.

Bagi Soalan 1 hingga Soalan 50, tiap-tiap soalan diikuti oleh empat pilihan jawapan A, B, C dan D. Pilih satu jawapan yang terbaik bagi tiap-tiap soalan dan hitamkan ruangan yang sepadan pada kertas jawapan objektif anda

4541/1 2 [Lihat sebelah SULIT

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1. Diagram 1 shows the electron arrangement of an atom of element Q.Rajah 1 menunjukkan susunan elektron bagi atom unsur Q.

What is the number of valence electrons in atom Q?Berapakah bilangan elektron valen bagi atom Q?

A 17B 15C 10D 5

2. Which chemical equation is correctly balanced?Persamaan kimia manakah yang diseimbangkan dengan betul?

A Na + O2 Na2OB Na + Cl2 NaClC Mg + 2HCl MgCl2 + H2 D Mg + CH3COOH (CH3COOH)2Mg + H2

3. The following statement refers to the contributions of a scientist in the development of the Peridict Table.Pernyataan berikut merujuk kepada sumbangan seorang ahli sains dalam membangunkan

Jadual Berkala .

Who was the scientist?Siapakah ahli sains itu?

A Meyer B MoseleyC MendeleevD Dobereiner


Elements are arranged in order of increasing proton number in The Periodic Table Unsur-unsur disusun mengikut pertambahan bilangan proton dalam Jadual Berkala

Diagram 1 Rajah 1

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4. Diagram 2 shows the set-up of the apparatus for electrolysis.Diagram 2 menunjukkan susunan radas bagi elektrolisis.

Which of the following compounds could be used as substance X?Antara berikut, yang manakah boleh digunakan sebagai bahan X?

A Ethanol, C2H5OH Etanol, C2H5OH

B Potassium iodide solution, KI Larutan kalium iodida, KI

C 1,1,1-trichloroethane, CH3 CCl3 1,1,1-trikloroetana, CH3Cl

D Ethyl ethanoate, CH3COOC2H5 Etil etanoat, CH3COOC2H5

5. What are the ions present in molten potassium iodide and potassium iodide aqueous solution? Apakah ion-ion yang wujud dalam leburan kalium iodide dan larutan akues kalium iodida?

potassium iodide Molten Leburan natrium klorida

potassium iodide aqueous solution

Larutan akues natrium kloridaA k+ , H+, Cl-, OH- k+ , H+, Cl- , B Nk+, Cl- OH-, Cl-

C k+, Cl- k+, Cl- , H+ , OH-

D k+, OH- k+, Cl- , H+ , OH-

6. Which of the following solutions can show a pH value of 9?Antara larutan berikut yang manakah boleh menunjukkan nilai pH 9?

A 0.1 mol dm-3 of ethanoic acid Asid etanoik 0.1 mol dm-3 B 0.1 mol dm-3 of sulphuric acid Asid sulfurik 0.1 mol dm-3

C 0.1 mol dm-3 of ammonia solution Larutan ammonia 0.1 mol dm-3

D 0.1 mol dm-3 of potassium hydroxide solution Larutan kalium hidroksida 0.1 mol dm-3


Substance XBahan X

Diagram 2Rajah 2

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7. Which of the following compounds is an insoluble salt?Antara sebatian berikut, yang manakah adalah garam tak terlarutkan?

A Potassium carbonateKalium karbonat

B Barium nitrateBarium nitrate

C Lead(II) chloridePlumbum(II) klorida

D Magnesium sulphateMagnesium sulfat

8 Diagram 3 shows four stages in the conversion of sulphur to sulphuric acid. Rajah 3 menunjukkan empat peringkat dalam pertukaran sulfur kepada asid sulfurik.

Diagram 3Rajah 3

In which stage is a catalyst used?Diperingkat manakah mangkin digunakan?

A Stage IPeringkat I

B Stage IIPeringkat II

C Stage IIIPeringkat III

D Stage IVPeringkat IV


Stage IVPeringkat IV

WaterAir

Stage IIPeringkat II Air

Udara

Stage IIIPeringkat III

Sulphuric acidAsid sulfurik

Stage IPeringkat I

AirUdara

SulphurSulfur

Sulphur dioxideSulfur dioksida

Sulphur trioxideSulfur trioksida

OleumOleum

Sulphuric acidAsid sulfuric

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9. Which substance is an amphoteric oxide?Bahan manakah adalah suatu oksida amfoterik?

A Phosphorus(V) oxide Fosforus(V) oksidaB Sodium oxide Natrium sulfatC Magnesium oxide

Magnesium oksidaD Aluminium oxide Aluminium oksida

10. Diagram 4 shows the graph of volume of carbon dioxide gas against time when 5 g of marble chips is added to 50 cm3 of 0.2 mol dm-3 hydrochloric acid. Rajah 4 menunjukkan graf isipadu gas karbon dioksida melawan masa apabila 5g ketulan marmar dimasukkan ke dalam 50 cm3 asid hidroklorik 0.2 mol dm-3.

At what time the rate of reaction the highest?Pada masa manakah kadar tindak balas paling tinggi? A t1

B t2

C t3

D t4

11. The following ionic equation shows a redox reaction. Persamaan ion di bawah mewakili satu tindak balas redoks.

2Fe²+ + Cl2 → 2Fe³+ + Clֿ

Which of the following is true about the reaction?Antara pernyataan berikut, yang manakah benar berkaitan tindakbalas di atas?A Iron(III) ion, Fe3+ is reduced

Ion ferum(III), Fe3+diturunkanB Iron(II) ion, Fe²+ is oxidised

Ion ferum(II), Fe²+ dioksidakanC Chlorine water is a reducing agent

Air klorin merupakan agen penurunanD Chloride ion is an oxidising agent


Isipadu gas CO2 / cm3

Time / s0 t1 t2 t3 t4 Masa / s

Volume of CO2 gas / cm3

Diagram 4Rajah 4

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Ion klorida merupakan agen pengoksidaan12 Which of the following processes is an endothermic reaction?

Antara proses berikut yang manakah merupakan suatu tindak balas endotermik? A Combustion of a hydrocarbon

Pembakaran hidrokarbonB Neutralisation between acid and alkali

Peneutralan antara asid dan alkaliC Dissolving sodium hydroxide solid in water

Melarutkan pepejal natrium hidroksida dalam airD Dissolving ammonium chloride salt in water

Melarutkan garam ammonium klorida dalam air

13. Which of the following structural formulas isfor the soap?Antara formula struktur berikut yang manakah bagi sabun?

A

B

C

D

14 Diagram 5 shows a part of the Periodic Table of elements.

Rajah 5 menunjukkan sebahagian daripada Jadual Berkala Unsur.

Y WX

Z

Diagram 5Rajah 5

Which of the following elements W,X,Y and Z in the Periodic Table is suitable to be used in the fluorescent lamps?Antara unsur W,X,Y dan Z yang manakah digunakan dalam lampu berpendaflour?

A

B

C

W

X

Y


HeatPanaskan

Diagram 6Rajah 6

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D Z

15. Which of the following substances is made up of atoms?

Antara bahan berikut yang manakah terdiri daripada atom-atom?

A Argon B NitrogenC ChlorineD Ammonia

16. Material X has the following properties. Bahan X mempunyai sifat-0sifat berikut.

Low coefficient of thermal expansion. Pekali pengembangan terma yang rendah

Very high resistance to chemical substances Rintangan sangat tinggi terhadap bahan kimia

What is material X? Apakah bahan X?

A BrassLoyang

B SteelKeluli

C Borosilicate glassKaca borosilikat

D Photochromic glassKaca fotokromik

17. Diagram 6 shows the set up of apparatus to determine the empirical formula for metal oxide. Rajah 6 menunjukkan susunan radas untuk menentukan formula empirik oksida logam.

Which of the following metals is most suitable to be used in the diagram?Logam yang manakah yang paling sesuai digunakan dalam rajah itu?

A IronBesi


Metal Logam

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B TinTimah

C CopperKuprum

D MagnesiumMagnesium

18 Zinc chloride solution and aluminium chloride solution are colourless solutions.Which of the following can be used to differentiate the solutions?

Larutan zink klorida dan larutan aluminium klorida adalah larutan tidak berwarna.Antara berikut, yang manakah boleh digunakan untuk membezakan larutan-larutan tersebut?

A Ammonia solutionLarutan ammonia

B Barium nitrate solutionLarutan barium nitrat

C Silver nitrate solutionLarutan argentum nitrat

D Sodium hydroxide solutionLarutan natrium hidroksida

19 Element T is an oxidising agent. Which of the following electron arrangements is for atom T ?T adalah agen pengoksidaan. Antara susunan elektron berikut adalah bagi atom

unsur T?

A 2.8.7B 2.8.3C 2.8.2D 2.8.1

20 Diagram 7shows the set up of the apparatus of a simple chemical cell.Rajah 7 menunjukkan susunan radas bagi sel kimia ringkas.


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Diagram 7 Rajah 7

Which of the following is metal X?Antara berikut, yang manakah logam X?

A ZincZink

B LeadPlumbum

C MagnesiumMagnesium

D AluminiumAluminium

21 Which of the following solutions have the same number of hydrogen ions, H+, as in 50 cm3 of 0.1 mol dm-3 sulphuric acid, H2SO4?

Antara larutan berikut, yang manakah mempunyai bilangan ion hidrogen, H+, sama seperti dalam 50 cm3 0.1 mol dm-3 asid sulfurik, H2SO4?

I 100 cm3 of 0.1 mol dm-3 hydrochloric acid, HCl 100 cm3 0.1 mol dm-3 asid hidroklorik, HClII 50 cm3 of 0.2 mol dm-3 nitric acid, HNO3

50 cm3 0.2 mol dm-3 asid nitrik, HNO3 III 100 cm3 of 0.1 mol dm-3 ethanoic acid, CH3COOH 100 cm3 0.1 mol dm-3 asid etanoik, CH3COOHIV 50 cm3 of 0.1 mol dm-3 phosphoric acid, H3PO4

50 cm3 0.1 mol dm-3 asid fosforic, H3PO4

A I and II onlyB I and III onlyC III and IV only D I, II and III only

22. Diagram 8 shows molecular structure of a polymer. Rajah 8 menunjukkan strukturmolekul bagi suatu polimer


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What is the name of the monomer of the polymer in the diagram?Apakah nama monomer bagi polimer dalam rajah tersebut?

A EtheneEtena

B ButeneButena

C PropenePropena

D Pentene Pentena

23 Table 1 shows the relative atomic mass of helium, carbon, sulphur and copper Jadual 1 menunjukkan jisim atom relatif bagi helium, karbon, sulfur dan kuprum

Element Unsur

Carbon Neon Sulphur zinc

Relative atomic mass Jisim atom relatif

12 20 32 65

Table 1Jadual 1

Which of the following statements is true?Antara pernyataan berikut yang manakah benar?

[ Avogadro constant = 6.0 x 1023 mol-1][ Pemalar Avogadro = 6.0 x 1023 mol-1]

A Mass of one zinc atom is 65 g Jisim satu atom zinc ialah 65 g

B Mass of 1 mol of neon gas is 40 g Jisim 1 mol gas neon ialah 40 g

C 32 g of sulphur contains 6.02 x 1023 sulphur atom 32g sulfur mempunyai 6.02 X 10 23 atom sulfur

D Mass of one sulphur atom is 32 times bigger than one carbon atomJisim satu atom unsur ialah 32 kali lebih besar daripada jisim satu atom karbon

24 Diagram 9 shows the energy profile diagram for the following reaction:Rajah 9 menunjukkan gambar rajah aras tenaga bagi tindak balas berikut:


Diagram 8Rajah 8

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R + S P + Q

Diagram 9Rajah 9

What is the activation energy for this reaction? Apakah tenaga pengaktifan bagi tindak balas ini?

A

B

C

D

y kJ

x kJ

(y – x) kJ

(x – y) kJ

25. The following equation shows a chemical reaction. Persamaan berikut menunjukkan satu tindak balas kimia.

Fat + Sodium hydroxide Sodium salt + Glycerol Lemak + Natrium hidroksida Garam natrium + Gliserol

What type of reaction is this? Apakah jenis tindak balas ini?

A EsterificationPengesteran

B SaponificationSaponifikasi

C Neutralization


x kJ

y kJ

R + S

P + Q

EnergyTenaga

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PeneutralanD Fermentation

Penapaian

26. Diagram 10 shows the energy level diagram for the reaction between silver ions and chloride ions.Rajah10 menunjukkan gambar rajah aras tenaga bagi tindak balas antara ion argentum dengan ion klorida.

Which of the following statements is true about this reaction?Yang manakah antara pernyataan berikut adalah benar mengenai tindak balas ini?

A Endothermic reaction occursTidak balas endotermik berlaku

B The energy content of the product is higher than the reactantsKandungan tenaga hasil tindak balas adalah lebih tinggi daripada bahan tindak balas

C 65 kJ of heat is absorbed when 1 mol of silver chloride is formed65 kJ tenaga diserap apabila 1 mol argentum klorida terbentuk

D The final temperature at the end of the reaction is higher than the initial temperatureSuhu akhir tindak balas adalah lebih tinggi daripada suhu awal tindak balas

27. Atom of oxygen-18 has 8 electrons. How many neutrons does an atom of oxygen-18 contains?Atom oksigen-18 mempunyai 8 elektron. Berapakah bilangan neutron bagi atom oksigen-18?

A 6B 8C 10D 18

28. Element X is located in the same group as potassium in the Periodic Table. X is not the actual symbol of the element.


EnergyAg+(aq) + Cl- (aq)

AgCl(s)

H = - 65.5 kJmol-1

Diagram 10Rajah 10

Tenaga

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Which of the following statements are chemical properties of element X?

Unsur X berada dalam kumpulan yang sama dengan kslium dalam Jadual Berkala. X bukan simbol sebenar unsur itu.

Antara pernyataan berikut, yang manakah sifat kimia unsur X?

I. Reacts with oxygen to produce a black solidBertindak balas dengan oksigen menghasilkan pepejal hitam

II Reacts with water to produce an alkaline solution Bertindak balas dengan air menghasilkan laaarutan bersifat alkali

III Reacts with chlorine gas to produce a white solid Bertindak balas dengan gas klorin menghasilkan pepejal putih

IV Reacts with sodium hydroxide to produce salt solutions. Bertindak balas dengan natrium hidrosida menghasilkan larutan-larutan garam

A I and II I dan IIB I and IV I dan IVC II and III II dan IIID II and IV II dan IV

29. The following statement is about P3+ ion.Pernyataan berikut adalah berkaitan ion P3+ .

Which of the following proton numbers and nucleon numbers shows for atom P?

Yang manakah antara berikut menunjukkan nombor proton dan nombor nukleon bagi atom P?

Proton numberNombor proton

Nucleon numberNombor nukleon

A 10 14B 10 27C 13 14D 13 27

30. Diagram 10 shows the electron arrangement of a compound formed between element P and element T.


P3+ ion has 14 neutrons and 10 electrons. Ion P3+ mempunyai 14 neutron dan 10 elektron

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Diagram 10 menunjukkan susunan elektron bagi sebatian yang terbentuk daripada unsur P dan unsur T.

P+ T2- P+

What group in the Periodic Table of Elements is element T located?Apakah kumpulan dalam Jadual Berkala Unsur kedudukan unsur Q?

A 2B 8C 16D 18

31. Which of the following pairs of substances is most suitable to prepare copper(II) chloride salt?Yang manakah antara pasangan bahan kimia berikut paling sesuai untuk menyediakan garam kuprum(II) sulfat ?

A Copper with dilute hydrochloric acidKuprum dan larutan asid hidroklorik cair

B Copper(II) nitrate with dilute hydrochloric acidKuprum(II) nitrat dan larutan asid hidroklorik cair

C Copper(II) carbonate with dilute hydrochloric acidKuprum(II) karbonat dan larutan asid hidroklorik cair

D Copper(II) nitrate solution with sodium chloride solutionLarutan kuprum(II) nitrat dan larutan natrium klorida

32 Diagram 11 shows the set-up of the apparatus of an electrolytic cell.


2-+ +

Diagram 10Rajah 10

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Rajah 11 menunjukkan susunan radas bagi satu sel elektrolisis.

Which of the following half-equations represents the reaction that occurred at electrode P?Antara persamaan setengah berikut, yang manakah mewakili tindak balas yang berlaku di elektrod P?

ABCD

Na+ + e Na2H+ + 2e H2

2Cl- Cl2 + 2e4OH- O2 + 2H2O + 4e

33 You are required to verify the cation and anion in a sample of ammonium chloride salt solution. What substance can you use to verify the cation and anion? Anda dikehendaki mengesahkan kation dan anion dalam satu samapel larutan garam ammonium klorida.Apakah bahan yang anda boleh gunakan untuknmengesahkan kaatioana dan anion?

CationKation

AnionAnion

A Nessler reagent Reagen Nessler

Dilute nitric acid and silver nitrateAsid nitrik cair dan argentums nitrat

B Nessler reagent Reagen Nessler

Dilute hydrochloric acid and barium chlorideAsid hidrokloreik cair dan barium klorida

C Potassium thiocyanate Kalium tiosianat

Dilute nitric acid and silver nitrate Asid nitrik cair dan argentums nitrat

D Potassium thiocyanate Kalium tiosianat

Dilute hydrochloric acid and barium chloride Asid hidrokloreik cair dan barium klorida

34. What is the meaning of heat of neutralisation?


Diagram 11Rajah 11

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Apakah maksud haba peneutralan?

A The heat absorbed when acid reacts with an alkali Haba yang diserap apabila asid bertindak balas dengan alkali

B The heat released when acid reacts with alkali Haba yang dibebaskan apabila asid bertindak balas dengan alkali.

C The change when one mole of water is formed from the reaction between acid and alkali Perubahan haba apabila satu mol air terbentuk daripada tindak balas antara asid dan alkali.

D The heat change when one of salt is formed from the reaction between acid and alkali. Perubahan haba apabila satu mol garam terbentuk daripada tindak balas antara asid dan alkali.

35. Table 3 shows the proton number of elements P, Q, R and S.

Jadual 3 menunjukkan nombor proton bagi unsur P, Q, R dan S.

ElementUnsur

P Q R S

Proton numberNombor proton

11 13 17 20

Table 3Jadual 3

What is the arrangement of elements S, T, U and V in ascending order of atomic size?Apakah susunan saiz atom secara menaik bagi unsur-unsur S,T, U dan V ?

A P, Q, R, SB P, S, Q, RC S, R, Q, PD R, Q, P, S

36 The equation shows the reaction between sulphuric acid and potassium hydroxide. Persamaan menunjukkan tindakbalas di antara asid sulfurik dan kalium hidroksida.

H2SO4 + 2KOH K2SO4 + 2H2O

What is the volume of 1.0 mol dm-3 potassium hydroxide solution which can neutralises 25.0 cm3 of 1.0 mol dm-3 sulphuric acid?

Berapakah isipadu 1.0 mol dm-3 larutan kalium hidroksida yang boleh meneutralkan 25.0 cm3 1.0 moldm-3 asid sulfurik ?

A 12.5 cm3 B 25.0 cm3

C 50.0 cm3 D 70.0 cm3


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37 Which of the following is correct match of properties of rubber X and rubber Y?Antara berikut, yang manakah padanan sifat bagi getah X dan getah Y yang betul?

Rubber X Rubber Y Getah X Getah Y

A

B

C

D

Rubber XGetah X

Rubber YGetah Y

More elasticLebih kenyal

Less elasticKurang kenyal

Stronger and harderKuat dan keras

Weaker and softerLemah dan lembut

High melting pointTakat lebur tinggi

Low melting pointTakat lebur rendah

Easy to oxidizeMudah teroksida

Difficult to oxidizeSukar teroksida

38. What is the oxidation number of Y in Y2O32- ion?


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Apakah nombor pengoksidaan bagi Y dalam ion Y2O32- ?

A +2 B - 2 C +4 D - 4

39. Diagram 13 shows three test tubes to investigate the effect of metals R, S and T on the rusting of ironRajah 13 menunjukkan tiga tabung uji untuk mengkaji kesan logam R, S dan T ke atas pengaratan paku besi

Experiment

Test tube 1 Test tube 2 Test tube 3

MaterialBahan

Iron nail and metal RPaku besi dengan logam R

Iron nail and metal SPaku besi dengan logam S

Iron nail and metal TPaku besi dengan logam T

ObservationPemerhatian

Small amount of blue spotSedikit tompok biru

No changeTiada perubahan

A lot of blue spot Banyak tompok biru

Diagram 13Rajah 13

Which of the following arrangements of metals R, S and T is in descending order of their electropositivity ?Yang manakah antara berikut adalah susunan logam R, S dan T mengikut tertib kelektropositifan menurun ?

A R , S , TB S , R , TC T , R , SD S , T , R

40. 7 g of potassium hydroxide is dissolved in distilled water to form 250 cm3 of solution. What is the molarity of the potassium hydroxide solution?[Relative atomic mass: H=1, O=16, K=39]


Hot agar solution + potassium hexacyanoferrate(III) Agar-agar panas + kalium heksasianoferrat(III)



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7 g kalium hidroksida dilarutkan ke dalam air suling untuk membentuk 250 cm3 larutan. Apakah kemolaran larutan kalium hidroksida tersebut?[Jisim atom relatif: H=1, O=16, K=39]

A 0.03 mol dm-3

B 0.05 mol dm-3

C 0.30 mol dm-3

D 0.50 mol dm-3

41. Diagram 14 shows the energy level diagram of the displacement reaction between magnesium and iron(II) chloride solution.Rajah 14 menunjukkan gambar rajah aras tenaga bagi tindak balas penyesaran antara magnesium dan larutan ferum(II) sulfat.

What is the increase in temperature if 50 cm3 of 0.25 mol dm-3 iron(II) chloride solution is reacted with excess magnesium,?Berapakah kenaikan suhu, jika 50 cm3 0.25 mol dm-3 larutan ferum(III) klorida ditindak balaskan dengan berlebihan magnesium ?

[Specific heat capacity of the solution = 4.2 J g-1 oC-1][Muatan haba tentu larutan = 4.2 J g-1 oC-1]

A 12 oCB 16 oCC 22 oCD 24 oC

42 Table 3 shows the result of an experiment for three simple voltaic cells.

Jadual 3 menunjukkan keputusan suatu eksperimen bagi tiga sel ringkas.

Positive terminal Negative terminal Voltage (V)


EnergyMg(s) + FeCl2(aq)

Fe(s) + MgCl2(aq)

H = - 201.6 kJmol-1

Diagram 14Rajah 14

Tenaga

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W X 0.3

Y X 0.8

X Z 1.9

The arrangement of the metals in the electrochemical series in descending order of electropositivity is

Susunan logam-logam mengikut keelektropositifan dalam siri elektrokimia mengikut urutan menurun adalah

A W, Z, X, Y

B Y, W, X, Z

C Y, W, Z, X

D Z, X, W, Y

43 Diagram 14 shows the set up of the apparatus for an experiment to determine the rate of reaction between sodium thiosulphate and sulphuric acid.Rajah 14 menunjukkan susunan radas bagi eksperimen untuk menentukan kadar tindak balas antara natrium tiosulfat dengan asid sulfuric.

Diagram 14 Rajah 14

Which of the following combination of the conditions take shortest time for the mark X to disappear from sight? Antara kombinasi keadaan berikut yang manakah mengambil masa paling singkat untuk tanda X hilang daripada penglihatan?

Sulphuric acid Asid sulfurik

Sodium Thiosulphate solution Larutan natrium tiosulfat

TemperatureSuhu


Sodium thiosulphate solution and sulphguric acidNatrium tiosulfat dan asid sulfurik

White paperKertas putih

Mark XTanda X

Table 3Jadual 3

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(oC)VolumeIsipadu (cm3)

ConcentrationKepekatan(mol dm-3)

VolumeIsipadu(cm3)

ConcentrationKepekatan(mol dm-3)

A 5 1.0 50 0.4 30B 5 1.0 50 0.4 40C 5 0.5 50 0.4 30D 10 0.5 45 0.4 40

44. Table 4 shows the melting and boiling points of substances P, Q, R and S..Jadual 4 menunjukkan takat lebur dan takat didih untuk bahan P, Q, R dan S..

SubstanceBahan

Melting point / 0CTakat lebur / 0C

Boiling point / 0CTakat didih / 0C

P -59 60Q 48 130R -110 -70S 128 470

Table 4Jadual 4

Which of the following substances has the highest kinetic energy at room temperature?Antara bahan berikut yang manakah mempunyai tenaga kinetic yang paling tinggi pada suhu bilik?

A PB QC RD S

45. The following equation shows the complete combustion of propene gas. Persamaan berikut menunjukkan pembakaran gas propene

C3H6(g) + 9/2 O2(g) → 3CO2(g) + 3H2O(g)

Which of the following statements are true when 1 mol of propene gas is burnt completely? [Relative molecular mass : C3H6 =42, O2=32, CO2 =44, H2O= 18, Molar volume of gas is 22.4 dm3 mol –1 at S.T.P.]

Yang manakah antara pernyataan berikut adalah benar apabila 1 mol gas propene terbakar secara lengkap?

[Jisim molekul relatif : C3H8 =44, O2=32, CO2 =44, H2O= 18, Isi padu molar gas 22.4 dm3

mol –1 pada S.T.P.]

I Complete combustion of 0.1 mol of propene produces 5.4 g of water Pembakaran lengkap 0.1 mol gas propena menghasilkan 5.4 g air

II Complete combustion of 1 mol of propene gas produces 2 mol of water Pembakaran lengkap 1 mol gas propene menghasilkan 2 mol air


SULIT 4541/1

III Complete combustion of 4.2 g of propene requires 14.4 g of oxygen. Pembakaran lengkap 4.2 g gas propena memerlukan 14.4 g gas oksigen

IV Complete combustion of 0.1 mol of propene produces 6.72 dm3 carbon dioxide gas at s.t.p. Pembakaran lengkap 0.1 mol propena akan menghasilkan 6.72 dm3 gas karbon dioksida pada s.t.p

A I and II onlyB I and IV onlyC II and IV onlyD I, III and IV

46 The following equation shows the combustion of heptane, C7H16 in excess oxygen.Persamaan berikut menunjukkan pembakaran heptana, C7H16 dalam oksigen berlebihan.

C7H16 + 11O2 → 7CO2 + 8H2O H = - 5512 kJ mol-1

In an experiment the combustion of heptane in excess oxygen releases 1378 kJ energy.What is the mass of heptane used?Dalam satu eksperimen pembakaran heptana dalam oksigen berlebihan membebaskan1378 kJ tenaga.Berapakah jisim heptana yang digunakan?[Relative atomic mass : H = 1; C = 12][Jisim atom relatif: H = 1 ; C = 12 ]

A 25.0 g B 36.0 gC 77.0 gD 88.0 g

47 Diagram 15 shows energy level diagrams for the reaction between hydrochloric acid and potassium hydroxide .Rajah 15 menunjukkan gambarajah aras tenaga untuk tindakbalas antara asid hidroklorik dan kalium hidroksida .


SULIT 4541/1

Diagram 15 Rajah 15

Calculate the amount of heat released when 50 cm3 of 2 mol dm-3 hydrochloric acid reacts with 50 cm3 of 2 mol dm-3 potassium hydroxide solution.Hitungkan jumlah haba yang dibebaskan apabila 50 cm3 asid hidroklorik 2 mol dm-3 bertindak balas dengan 50 cm3 larutan kalium hidroksida 2 mol dm-3

A 5.40 kJ B 10.8 kJ C 27.0 kJ D 54.0 kJ

48. Which of the following food additives can be used to make food stay fresh longer and taste better?Antara bahan tambah makanan berikut yang manakah boleh digunakan untuk mengekalkan kesegaran makanan dan meningkatkan rasanya?

A Sodium benzoate and tartrazineNatrium benzoat dan tartrazina

B Sodium benzoate and ascorbic acidNatrium benzoat dan asid askorbik

C Monosodium glutamate and tartrazineMononatrium glutamat dan tartrazina

D Ascorbic acid and monosodium glutamate Asid askorbik dan mononatrium glutamat

49 Diagram 17 shows the process to produce compound J.Rajah 17 menunjukkan proses menghasilkan sebatian J.


H+ + OH-

H 2 O

- 54 kJ mol-1

Energy Tenaga

PropanolPropanolC3H7OH

Ethanoic acidAsid etanoikCH3COOH

SULIT 4541/1

+

Diagram 17 Rajah 17

Which of the following structural formulas is of compound J?Antara formula struktur yang manakah bagi sebatian J?

A

B

C

D

O ||

CH3—C—O—CH2—CH3

O ||

CH3—C—O—CH2—CH2—CH3

O ||

CH3—CH2—C—O—CH2—CH3

O ||

CH3—CH2—C—O—CH2—CH2—CH3

50 Diagram 18 shows the set of apparatus of an experiment to investigate electron transfer at a distance.Rajah 18 menunjukkan susunan radas satu eksperimen pemindahan elektron pada satu jarak.


Compound J Sebatian J

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Diagram 18 Rajah 18

Which of the following statements is true about the experiment? Antara pernyataan berikut yang manakah benar tentang eksperimen itu?

A Iodide ion is the reducing agentIon iodida bertindak sebagai agen penurunan.

B Oxidation number of iodine decreases from 0 to -1Nombor pengoksidaan iodin menurun dari 0 ke -1

C Oxidation number of manganese increases from +2 to +7Nombor pengoksidaan mangan bertambah dari + 2 ke +7

D Electrons flow from potassium iodide solution to acidified potassium manganate(VII) through sulphuric acidElektron mengalir dari larutan kalium iodida ke larutan kalium mangnanat(VII) berasid melalui asid sulfurik

END OF QUESTION PAPERKERTAS SOALAN TAMAT


Acidified potassium manganate(VII) solutionLarutan kalium manganat(VII) berasid

G

Carbon electrodeElektrod karbon

Dilute sulphuric acidAsid sulfurik cair

Potassium iodide solutionLarutan kalium iodida

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