PAPER 1 QUESTION by izzahedi

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SEKOLAH MENENGAH KEBANGSAAN SULTAN YUSSUF BATU GAJAH, PERAK

PEPERIKSAAN AKHIR TAHUN 2018 CHEMISTRY

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Tingkatan 4 Kertas 1 Oktober 1 ¼ jam

Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU 1. 2. 3.

Kertas soalan ini adalah dalam dwibahasa. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu. Calon dikehendaki membaca maklumat di halaman belakang kertas soalan ini.

___________________________________________________________________________ Kertas soalan ini mengandungi 26 halaman bercetak

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Which substance consists of atoms? Bahan manakah yang terdiri daripada atom? A Calcium B Kalsium C Lead(II) bromide D Plumbum(II) bromida

Nitrogen gas Gas nitrogen Naphthalene Naftalena

Which substance undergoes sublimation when heated? Bahan manakah yang mengalami pemejalwapan apabila dipanaskan? A Ethanol B Bromine water Etanol Air bromin C Sodium chloride D Ammonium chloride Natrium klorida Ammonium klorida

The following statements refer to the contribution of a scientist in developing the Periodic Table of Elements. Pernyataan berikut merujuk kepada sumbangan seorang ahli sains dalam membangunkan Jadual Berkala Unsur. â&#x20AC;˘

Classify elements based on concept of proton number. Mengelaskan unsur berdasarkan konsep nombor proton. â&#x20AC;˘ Arrange elements according to the sequence of proton numbers. Menyusun unsur-unsur mengikut turutan menaik nombor proton Who was the scientist? Siapakah ahli sains itu? A Lothar Meyer C John Newlands 4

B D

Henry Mosely Dmitri Mendelev

Which of the following elements are in Group 18 in the Periodic Table of Elements? Antara berikut, manakah unsur yang berada di dalam Kumpulan 18 Jadual Berkala Unsur? A Argon and xenon B Oxygen and xenon Argon dan xenon Oksigen dan xenon C Hydrogen and oxygen D Argon and hydrogen Hidrogen dan oksigen Argon dan hidrogen

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Fluorine, chlorine and bromine are in the same group in the Periodic Table of Elements. What is the name of the group? Fluorin, klorin dan bromin berada dalam kumpulan yang sama dalam Jadual Berkala Unsur. Apakah nama kumpulan itu? A Alkali metal B Halogen Logam alkali Halogen C Transition element D Noble gas Unsur peralihan Gas adi

The following statement shows the characteristics of a metal. Pernyataan berikut menunjukkan ciri-ciri suatu logam. â&#x20AC;˘ â&#x20AC;˘

Able to form complex ions Berupaya membentuk ion kompleks Can act as catalyst Boleh bertindak sebagai mangkin

Which of the following metals has the above characteristics? Antara logam berikut, yang manakah mempunyai ciri-ciri di atas? A Sodium B Magnesium Natrium Magnesium C Calcium D Iron Kalsium Ferum 7

Which of the following is true about electrolytes? Antara pernyataan berikut, yang manakah benar tentang elektrolit? A Elements that conduct electricity in molten state Unsur yang mengalirkan arus elektrik dalam keadaan leburan B Compounds that conduct electricity in solid state Sebatian yang mengalirkan arus elektrik dalam keadaan pepejal C Elements that conduct electricity in solid or molten state Unsur yang mengalirkan arus elektrik dalam keadaan pepejal atau leburan D Compounds that conduct electricity in molten state or aqueous solution Sebatian yang mengalirkan arus elektrik dalam keadaan leburan atau larutan akueus

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4 Which ions are present in molten sodium chloride? Ion manakah yang terdapat dalam leburan natrium klorida? A Na+, ClB S+, ClC

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Na+, Cl-, OH-

Na+, Cl-, H+, OH-

Diagram 1 shows the extraction of a metal from its ore through electrolysis. Rajah 1 menunjukkan pengekstrakan suatu logam dari bijihnya secara elektrolisis.

Diagram / Rajah 1 What is the function of cryolite? Apakah fungsi kriolit? A To produce more metal Untuk menghasilkan lebih banyak logam B To prevent the electrodes from corrosion Untuk mengelakkan elektrod daripada kakisan C To act as a catalyst Untuk bertindak sebagai mangkin D To lower the melting point of the metal ores Untuk merendahkan takat lebur bijih logam

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Which of the following is a strong acid? Antara berikut, yang manakah asid kuat? A Nitric acid B Asid nitrik C Oxalic acid D Asid oksalik

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Ethanoic acid Asid etanoik Phosphoric acid Asid fosforik

Which of the following pH values is for strong acid solution? Antara berikut, yang manakah nilai pH bagi larutan asid kuat? A 14 B 11 C 5 D 1

Which of the following is true about acid? Antara pernyataan berikut, yang manakah benar tentang asid? A Turns red litmus paper to blue Menukarkan kertas litmus merah ke biru B React with alkali to give off oxygen gas Bertindak balas dengan alkali membebaskan gas oksigen C React with magnesium to produce salt and water Bertindak balas dengan magnesium menghasilkan garam dan air D Reacts with calcium carbonate to give off carbon dioxide gas Bertindak balas dengan kalsium karbonat membebaskan gas karbon dioksida

Which of the following statements is correct about alkali? Antara pernyataan berikut, yang manakah betul bagi alkali? A Bases that are soluble in water Bes yang larut dalam air B Shows a pH value less than 7 Menunjukkan nilai pH kurang daripada 7 C Ionises in water to form hydroxonium ions Mengion dalam air menghasilkan ion hidroksonium D Reacts with carbonate salt to release carbon dioxide gas Bertindak balas dengan garam karbonat menghasilkan gas karbon dioksida

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6 Which salt is insoluble in water? Garam manakah yang tidak larut dalam air? A Silver nitrate B Argentum nitrat C Barium chloride D Barium klorida

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Calcium sulphate Kalsium sulfat Sodium carbonate Natrium karbonat

Diagram 2 shows an apparatus set-up to prepare a soluble salt. Rajah 2 menunjukkan susunan radas bagi menyediakan suatu garam terlarutkan.

Diagram / Rajah 2 Which of the following salt is prepared by this method? Antara berikut, garam manakah yang boleh disediakan dengan kaedah ini? A Zinc chloride B Sodium sulphate Zink klorida Natrium sulfat C Copper(II) carbonate D Lead(II) nitrate Kuprum(II) karbonat Plumbum(II) nitrat

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Diagram 3 shows the electron arrangement of a compound. Rajah 3 menunjukkan susunan elektron bagi suatu sebatian.

Diagram / Rajah 3 Which of the following is correct about the compound? Antara berikut, yang manakah betul mengenai sebatian ini? A Soluble in benzene Larut dalam benzena B Soluble in water Larut dalam air C Have high boiling point Mempunyai takat didih yang tinggi D Can conduct electricity in molten state Boleh mengalirkan elektrik dalam keadaan leburan 17

Diagram 4 shows an activity to study the precipitation reaction. Rajah 4 menunjukkan aktiviti untuk mengkaji tindak balas pemendakan.

Diagram / Rajah 4

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What is X? Apakah X? A Sodium chloride Natrium klorida C Potassium iodide Kalium iodida 18

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B D

Sodium carbonate Natrium karbonat Potassium sulphate Kalium sulfat

Table 1 shows information about particles X and Y. Jadual 1 menunjukkan maklumat tentang zarah X dan Y. Particle Zarah

Proton number Nombor proton

Nucleon number Nombor nukleon

Table / Jadual 1 Which of the following is true about particles X and Y? Antara berikut, yang manakah benar tentang zarah X dan Y? A Particles X and Y have the same chemical properties Zarah X dan Y mempunyai sifat-sifat kimia yang sama B Particles X and Y have the same number of neutrons Zarah X dan Y mempunyai bilangan neutron yang sama C Particles X and Y have different numbers of valence electrons Zarah X dan Y mempunyai bilangan elektron valens yang berbeza D Both particles X and Y are not isotopes of the same element Kedua-dua zarah X dan Y adalah bukan isotop bagi unsur yang sama 19

Table 2 shows example of elements in the Periodic Table of Elements. Jadual 2 menunjukkan beberapa unsur dalam Jadual Berkala Unsur.

Element Unsur Type of element Jenis unsur

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Sodium Natrium Metal Logam

Magnesium Carbon Oxygen Hydrogen Magnesium Karbon Oksigen Hidrogen Metal Non-metal Non-metal Non-metal Logam Bukan logam Bukan logam Bukan logam Table / Jadual 2

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Which two elements would combine to form an ionic compound? Manakah dua unsur yang boleh bergabung membentuk satu sebatian ion? A Sodium and magnesium B Carbon and oxygen Natrium dan magnesium Karbon dan oksigen C Hydrogen and oxygen D Magnesium and oxygen Hidrogen dan oksigen Magnesium dan oksigen 20

Diagram 5 shows weather balloon. Rajah 5 menunjukkan belon kaji cuaca.

Diagram / Rajah 5 What is the type of particle in gas X? Apakah jenis zarah dalam gas X? A Ion Ion C Molecule Molekul 21

B D

Atom Atom Compound Sebatian

Which of the following is a sublimation process? Antara berikut, yang manakah menunjukkan proses pemejalwapan? A Bromine vapour spreads throughout gas jar Wap bromin tersebar keseluruh balang gas B Water changes into the ice in the refrigerator Air bertukar menjadi ais dalam peti sejuk C Moth ball in cupboard becomes smaller Ubat gegat dalam almari menjadi lebih kecil D Volume of perfume decreases in the open bottle Isipadu minyak wangi berkurang dalam botol yang terbuka

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Which of the following gases contains 0.6 mole of atoms at room temperature and pressure? [Molar volume of gas = 24 dm3 mol-1 at room conditions] Antara gas berikut, yang manakah mengandungi 0.6 mol atom pada suhu dan tekanan bilik? [Isi padu molar gas = 24 dm3 mol-1 pada keadaan bilik] A 4.8 dm3 of neon B 4.8 dm3 of nitrogen 4.8 dm3 neon 4.8 dm3 nitrogen C 4.8 dm3 of sulphur trioxide D 4.8 dm3 of carbon dioxide 4.8 dm3 sulfur trioksida 4.8 dm3 karbon dioksida

The following equation represents a chemical reaction. Persamaan berikut mewakili satu tindak balas kimia.

Zn (s) + 2HCl (aq) â&#x2020;&#x2019; ZnCl2 (aq) + H2 (g) Zn (p) + 2HCl (ak) â&#x2020;&#x2019; ZnCl2 (ak) + H2 (g) Which statement is correct? Pernyataan yang manakah betul? A 2 moles of zinc react with 1 mole of hydrochloric acid 2 mol zink bertindakbalas dengan 1 mol asid hidroklorik B The products are solid zinc chloride and hydrogen gas Hasil tindak balas ialah pepejal zink klorida dan gas hidrogen C The reactants are solid zinc and hydrochloric acid solution Bahan tindak balas ialah pepejal zink dan larutan asid hidroklorik D 1 mole of zinc chloride and 2 moles of hydrogen gas are formed 1 mol zink klorida dan 2 mol gas hidrogen telah terbentuk 24

Diagram 6 shows the electron arrangement of ammonia. Rajah 6 menunjukkan susunan elektron bagi ammonia.

Diagram / Rajah 6

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What is the electron arrangement of atom N? Apakah susunan elektron bagi atom N? A 2.3 B C 2.7 D

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2.5 2.8

Which of the following is suitable to electroplate an iron spoon with silver? Antara berikut, yang manakah sesuai untuk menyadurkan sudu besi dengan argentum? Anode Cathode Electrolyte Anod Katod Elektrolit A Silver Iron spoon Silver nitrate solution Argentum Sudu besi Larutan argentum nitrat B Silver Iron spoon Silver chloride solution Argentum Sudu besi Larutan argentum klorida C Iron spoon Silver Silver chloride solution Sudu besi Argentum Larutan argentum klorida D Iron spoon Silver Silver nitrate solution Sudu besi Argentum Larutan argentum nitrat

Which substance is a covalent compound? Bahan manakah adalah sebatian kovalen? A SO2 B C MgO D

CaO LiCl

An element does not conduct electricity and exists as diatomic molecule. Which area in the Periodic Table can this element be found? Suatu unsur tidak dapat mengkonduksikan arus elektrik dan wujud sebagai molekul dwiatom. Dalam kawasan manakah unsur ini boleh didapati dalam Jadual Berkala Unsur?

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Diagram 7 shows a part of the Periodic Table of Elements. Rajah 7 menunjukkan sebahagian daripada Jadual Berkala Unsur.

X Y

Z Diagram / Rajah 7 Which of the following elements W, X, Y and Z in the Periodic Table of Elements is suitable to be used in light bulbs? Antara unsur W, X, Y dan Z dalam Jadual Berkala Unsur, yang manakah sesuai digunakan untuk mengisi mentol? A W B X C Y D Z 29

Table 3.1 shows the colour changes for three indicators. Jadual 3.1 menunjukkan perubahan warna bagi tiga penunjuk. Indicator Penunjuk Phenolphthalein Fenolftalein Methyl orange Metil jingga Universal indicator Penunjuk semesta

Colour in pH 2 solution Warna dalam larutan pH 2 Colourless Tanpa warna Red Merah Red Merah Table / Jadual 3.1

Colour in pH 10 solution Warna dalam larutan pH 10 Pink Merah jambu Yellow Kuning Purple Ungu

Table 3.2 shows the observation of three indicators in substances X, Y and Z. Jadual 3.2 menunjukkan pemerhatian bagi tiga penunjuk di dalam bahan X, Y dan Z.

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Mixture Campuran Observation Pemerhatian

Phenolphthalein Methyl orange in in substance X substance Y Fenolftalein Metil jingga di dalam bahan X di dalam bahan Y Pink Red Merah jambu Merah Table / Jadual 3.2

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Universal indicator in substance Z Penunjuk semesta di dalam bahan Z Purple Ungu

Which of the following substances match the observation in Table 3.2? Antara bahan-bahan berikut, yang manakah berpadanan dengan pemerhatian di dalam Jadual 3.2? A B C D

Toothpaste Ubat gigi Lime juice Jus limau Toothpaste Ubat gigi Vinegar Cuka

Lime juice Jus limau Soap Sabun Shampoo Syampu Lime juice Jus limau

Soap Sabun Toothpaste Ubat gigi Lime juice Jus limau Soap Sabun

Diagram 8 shows the graph of temperature against time for the heating of naphthalene. Rajah 8 menunjukkan graf suhu melawan masa bagi pemanasan naftalena.

Diagram / Rajah 8

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What is the process and state of matter at t? Apakah proses dan keadaan jirim pada t? Process Proses A Melting Peleburan B Freezing Pembekuan C Condensation Kondensasi D Boiling Pendidihan

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State of matter Keadaan jirim Solid and liquid Pepejal dan cecair Solid and liquid Pepejal dan cecair Liquid and gas Cecair dan gas Liquid and gas Cecair dan gas

The chemical formula of X is TCl 2. What is the chemical formula of the compound formed when cation of X react with oxygen? Formula kimia bagi X ialah TCl2. Apakah formula kimia bagi sebatian yang terbentuk apabila kation X bertindak balas dengan oksigen? A TO B TO2 C T2O D T2O3

Which is the correct match for the name of substance and its chemical formula? Yang manakah pasangan yang betul untuk nama bahan dan formula kimianya? Name of substance Chemical formula Nama bahan Formula kimia A Zinc phosphate Zn3(PO4)2 Zink fosfat B Aluminium phosphate Al2(PO4)3 Aluminium fosfat C Lead(II) oxide PbO2 Plumbum(II) oksida D Copper(I) carbonate CuCO3 Kuprum(I) karbonat

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A group of student is required to confirm the presence of chloride ion in solution P. What is the suitable reagent and expected observation in the test? Sekumpulan pelajar dikehendaki mengesahkan kehadiran ion klorida dalam larutan P. Apakah reagen yang sesuai dan pemerhatian yang dijangkakan dalam ujian itu? Reagent Observation Reagen Pemerhatian A Dilute hydrochloric acid Gas released turns lime water chalky Asid hidroklorik cair Gas yang terbebas mengeruhkan air kapur B Dilute nitric acid and silver nitrate solution White precipitate is formed Asid nitrik cair dan larutan argentum Mendakan putih terhasil nitrat C Dilute hydrochloric acid and barium chloride solution White precipitate is formed Asid hidroklorik dan larutan barium Mendakan putih terhasil klorida D Dilute sulphuric acid, iron(II) sulphate solution and concentrated A brown ring is formed sulphuric acid Cincin perang terbentuk Asid sulfurik cair, ferum(II) sulfat dan asid sulfurik pekat

A mixture containing two anions was tested and the results are shown below. Satu campuran mengandungi dua anion telah diuji dan keputusannya ditunjukkan di bawah. Test Ujian Dilute nitric acid Asid nitrik cair

Results Keputusan Gas bubbles which turned lime water milky Gelembung-gelembung gas yang menukarkan air kapur menjadi keruh

Dilute hydrochloric acid added, followed by aqueous barium chloride Tambah asid hidroklorik cair, diikuti oleh larutan barium klorida

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White precipitate formed. Mendakan putih terbentuk

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Which anions were present? Apakah anion-anion yang hadir? A Carbonate and chloride Karbonat dan klorida C Sulphate and chloride Sulfat dan klorida 35

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B D

Carbonate and sulphate Karbonat dan sulfat Sulphate and nitrate Sulfat dan nitrat

Diagram 9 shows the apparatus set-up of a chemical cell using magnesium and copper as the electrodes. Rajah 9 menunjukkan susunan radas bagi sel kimia menggunakan magnesium dan kuprum sebagai elektrod.

Diagram / Rajah 9 Which of the following are the correct products at positive and negative terminal? Antara berikut, yang manakah hasil-hasil yang betul di terminal positif dan negatif? Product at positive terminal Product at negative terminal Hasil di terminal positif Hasil di terminal negatif A Magnesium Copper(II) ion Magnesium Ion kuprum(II) B Copper(II) ion Hydrogen gas Ion kuprum(II) Gas hidrogen C Hydrogen gas Copper Gas hidrogen Kuprum D Copper Magnesium ion Kuprum Ion magnesium

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Diagram 10 shows electrolysis of 2.0 mol dm -3 sodium chloride using carbon electrodes. Rajah 10 menunjukkan elektrolisis natrium klorida 2.0 mol dm-3 menggunakan elektrod karbon.

Diagram / Rajah 10 Which of the following are the observations at anode and cathode after 5 minutes? Antara berikut yang manakah pemerhatian di anod dan katod selepas 5 minit?

A B C

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Anode Cathode Anod Katod Colourless gas bubbles released Colourless gas bubbles released Gelembung gas tanpa warna terbebas Gelembung gas tanpa warna terbebas Colourless gas bubbles released Grey solid deposited Gelembung gas tanpa warna terbebas Pepejal kelabu terenap Greenish-yellow gas bubbles released Grey solid deposited Gelembung gas kuning kehijauan Pepejal kelabu terenap terbebas Greenish-yellow gas bubbles released Colourless gas bubbles released Gelembung gas kuning kehijauan Gelembung gas tanpa warna terbebas terbebas

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Table 4 shows the pH value of two solutions with the same concentration. Jadual 4 menunjukkan nilai pH bagi dua larutan dengan kepekatan yang sama. Solution Larutan

13 Table / Jadual 4

Which statement explains the differences in the pH values? Pernyataan manakah yang menerangkan perbezaan antara nilai pH itu? A K ionises partially whereas L ionises completely in water K mengion separa manakala L mengion lengkap di dalam air B The concentration of hydroxide ion in K is higher than L Kepekatan ion hidroksida dalam K lebih tinggi berbanding L C The number of mole of hydroxide ion in K is less than L Bilangan mol ion hidroksida dalam K kurang berbanding dengan L D The concentration of hydrogen ion in K is lower than L Kepekatan ion hidrogen dalam K lebih rendah berbanding L 38

Table 5 shows the proton number of elements P, Q and R. Jadual 5 menunjukkan nombor proton bagi unsur P, Q dan R. Element Unsur

Proton number Nombor proton

Table / Jadual 5 Which is the correct arrangement in descending order of atomic size of the element? Susunan menurun saiz atom unsur yang manakah betul? A R,Q,P B P,Q,R C R,P,Q D Q,R,P

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X2+ ion has 12 neutrons and 10 electrons. What are the proton number and nucleon number for atom X? Ion X2+ mempunyai 12 neutron dan 10 elektron. Apakah nombor proton dan nombor nukleon bagi atom X?

A B C D 40

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Proton number Nombor proton 10 10 12 12

Nucleon number Nombor nukleon 12 24 12 24

Veronal is a barbiturate used to induce sleep in psychiatric patients. The molecular formula of veronal is shown in the diagram below. Veronal ialah ubat pelali yang digunakan untuk merangsang pesakit mental untuk tidur. Formula molekul bagi veronal ditunjukkan dalam rajah di bawah.

C4H2N2O3(C2H5)2 What is the relative molecular mass of veronal? [Relative atomic mass : H = 1, C = 12, N = 14, O = 16] Apakah jisim molekul relatif bagi veronal? [Jisim atom relatif : H = 1, C = 12, N = 14, O = 16] A 196 B 186 C 184 D 160

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Diagram 11 shows the composition of element in a seashell. Rajah 11 menunjukkan komposisi unsur di dalam cengkerang siput.

Seashell Cengkerang siput

Element Unsur

Mass (g) Jisim (g)

25.0

7.5

30.0

Diagram / Rajah 11 What is the empirical formula of the compound in the seashell? [ Relative atomic mass: M = 40 ; G = 12 ; J = 16 ] Apakah formula empirik bagi sebatian dalam cengkerang siput tersebut? [ Jisim atom relatif : M = 40 ; G = 12 ; J = 16 ] A MGJ B MGJ2 C MG2J D MGJ3 42

Which of the following represent structure of the compound formed when sodium react with oxygen? Antara yang berikut, struktur manakah mewakili sebatian yang terhasil apabila natrium bertindak balas dengan oksigen? A

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Different metals were tested using the apparatus shown in Diagram 12. Logam yang berbeza diuji menggunakan susunan radas seperti yang ditunjukkan dalam Rajah 12.

Diagram / Rajah 12 Which pair of metal shows the highest voltage reading? Pasangan logam yang manakah menunjukkan bacaan voltan yang paling tinggi? A Zinc and copper B Magnesium and zinc Zink and kuprum Magnesium dan zink C Copper and silver D Magnesium and silver Kuprum dan argentum Magnesium dan argentum

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Table 6 shows the information of a simple chemical cell. The cell consists of metal X and Y as electrodes and sulphuric acid as electrolyte. Jadual 6 menunjukkan maklumat mengenai satu sel kimia ringkas. Sel ini terdiri daripada logam X dan logam Y sebagai elektrod dan asid sulfurik sebagai elektrolit. Set Set

Metal X Logam X Magnesium Magnesium

Metal Y Logam Y Copper Kuprum

Positive terminal Terminal positif Copper Kuprum

Aluminium Aluminium

Copper Kuprum

2.0

III

Aluminium Aluminium

Iron Ferum

1.2

Magnesium Magnesium

Iron Ferum Table / Jadual 6

What is electrode P and the value of Q? Apakah elektrod P dan nilai Q? P A Magnesium Magnesium B Iron Ferum C Magnesium Magnesium D Iron Ferum

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Voltage (V) Voltan (V) 2.4

Q 0.8 1.6 1.6 0.8

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Diagram 13 shows the apparatus set-up for the reaction of metal W with oxygen gas to produce white solid Z. When solid Z is reacted with water, the solution formed turns red litmus paper to blue. Rajah 13 menunjukkan susunan radas bagi tindak balas antara logam W dengan gas oksigen bagi menghasilkan pepejal putih Z. Apabila pepejal Z bertindak balas dengan air, larutan yang terhasil menukarkan kertas litmus merah kepada biru.

Diagram / Rajah 13 Which of the following is correct about metal W and solid Z? [ Proton number of oxygen is 8 ] Antara yang berikut, yang manakah betul bagi logam W dan pepejal Z? [ Nombor proton bagi oksigen ialah 8 ] Electron arrangement of W atom Chemical formula of solid Z Susunan elektron bagi atom W Formula kimia pepejal Z A 2.1 WO B 2.8.2 W2O C 2.8.3 W2O3 D 2.8.8.1 W2O

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Diagram 14 shows the electron arrangement for compound TZ. Rajah 14 menunjukkan susunan elektron dalam sebatian TZ.

Diagram / Rajah 14 Which elements are represented by T and Z? Unsur manakah yang diwakili oleh T dan Z? T A Sodium Natrium B Magnesium Magnesium C Sodium Natrium D Magnesium Magnesium

Z Oxygen Oksigen Oxygen Oksigen Fluorine Fluorin Fluorine Fluorin

A lab assistant needs to prepare a 100 cm3 solution of 0.1 mol dm-3 hydrochloric acid from a solution of 1.0 mol dm-3 hydrochloric acid. What is the volume of the 1.0 mol dm-3 hydrochloric acid needed to be added to water? Seorang pembantu makmal perlu menyediakan 100 cm3 larutan asid hidroklorik 0.1 mol dm-3 daripada larutan asid hidroklorik 1.0 mol dm-3. Berapakah isipadu asid hidroklorik 1.0 mol dm-3 yang diperlukan untuk ditambahkan ke dalam air? A 1.0 cm3 B 5.0 cm3 C 10.0 cm3 D 15.0 cm3

What is the concentration of 25 cm3 sulphuric acid, H2SO4 needed to neutralise 25 cm3 of 1.0 mol dm-3 sodium hydroxide solution, NaOH? Berapakah kepekatan 25 cm3 asid sulfurik, H2SO4 yang diperlukan untuk meneutralkan 25 cm3 larutan natrium hidroksida 1.0 mol dm-3, NaOH? A 0.1 mol dm-3 B 0.5 mol dm-3 C 1.0 mol dm-3 D 2.0 mol dm-3

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The following equation represents the reaction between calcium carbonate and 50 cm3 of 1.0 mol dm-3 hydrochloric acid. Persamaan berikut mewakili tindak balas antara kalsium karbonat dan 50 cm3 asid hidroklorik 1.0 mol dm-3.

CaCO3 + 2HCl → CaCl2 + CO2 + H2O What is the number of carbon dioxide molecules released? [Avogadro constant: 6.02 x 1023] Berapakah bilangan molekul karbon dioksida yang dibebaskan? [Pemalar Avogadro: 6.02 x 1023] A 0.025 x 6.02 x 1023 B 0.05 x 6.02 x 1023 C 1 x 6.02 x 1023 D 2 x 6.02 x 1023 50

The following equation represents the decomposition of solid copper(II) nitrate. Persamaan berikut mewakili tindak balas penguraian pepejal kuprum(II) nitrat

2Cu(NO3)2 → 2CuO + 4NO2 + O2 What is the volume of oxygen gas produces at room condition when 1.88 g of solid copper(II) nitrate is decomposed? [ Relative atomic mass : Cu = 64 ; N = 14 ; O = 16 ; Molar volume of gas = 24 dm3 mol-1 at room conditions ] Apakah isipadu gas oksigen yang terhasil pada keadaan bilik apabila 1.88 g pepejal kuprum(II) nitrat terurai? [ Jisim atom relatif : Cu = 64 ; N = 14 ; O = 16 ; Isi padu molar bagi gas = 24 dm3 mol-1 pada keadaan bilik ] A 12 cm3 B 24 cm3 C 120 cm3 D 240 cm3

END OF QUESTION 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.

Answer all questions. Jawab semua soalan.

Each question is followed by four alternative answers, A, B, C and D. For each question, choose one answer only. Blacken your answer on the objective answer sheet provided. Tiap-tiap soalan diikuti empat pilihan jawapan, iaitu A, B, C dan D. Bagi setiap soalan, pilih satu jawapan sahaja. Hitamkan jawapan anda pada kertas jawapan objektif yang disediakan.

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 baharu.

The diagrams in the questions provided are not drawn to scale unless stated. Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

You may use a scientific calculator. Anda dibenarkan menggunakan kalkulator saintifik.

Prepared by: Disediakan oleh:

Checked by: Disemak oleh:

Verified by: Disahkan oleh:

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(CIK INTAN ZAREENA ZAHEDI)

(PN. NURRUL â&#x20AC;&#x2DC;AINNI MD. TENI) Ketua Unit Kimia Ting. 6

(PN. NORLIZA MD DERUS) Guru Kanan Sains

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