SMK KHAI MUN

1. Which of the following explains correctly about chemistry?Antara pernyataan yang berikut, yang manakah menghuraikan kimia dengan betul?AChemistry is the study about matter.

Kimia ialah kajian tentang jirim.

BChemistry is the art of transforming metal.

Kimia ialah suatu seni penukaran logam.

CChemistry is the systematic study about natural phenomenon.

Kimia ialah kajian sistematik tentang fenomena alam.

DChemistry is the study gained from scientific investigations.Kimia ialah kajian yang diperoleh melalui penyiasatan saintifik.

2. Diagram 1 shows a model of an atom.Rajah 1 menunjukkan satu model atom.

Diagram 1 /Rajah 1

Who introduced this model?

Siapakah yang memperkenalkan model ini?

AJames ChadwickBNeils Bohr

CErnest RutherfordDJohn Dalton

3. Which of the following set up of apparatus is correct to determine the melting point of acetamide?Antara susunan radas berikut, yang manakah betul untuk menentukan takat lebur asetamida?A

B

C

D

4. Which of the following is a use of carbon-14 isotope?Antara berikut, yang manakah kegunaan isotop karbon-14?ADetermine the age of a fossil

Menentukan usia fosilBGenerate electrical energy

Menjana tenaga elektrik

CDiagnose thyroid problems

Mengesan penyakit tiroidDKill cancer cells

Membunuh sel-sel kanser

5. The empirical formula of copper oxide is determined by its reaction with hydrogen.The heating, cooling and weighing steps are repeated several times but a constant mass of the product is still not obtained.

Formula empirik kuprum oksida ditentukan dengan tindak balasnya dengan hydrogen.

Langkah pemanasan, penyejukan dan penimbangan diulang beberapa kali tetapi jisim hasil yang tetap masih tidak diperoleh. Which of the following can be done to get a constant mass of the product?Antara yang berikut, yang manakah boleh dilakukan untuk mendapat jisim hasil yang tetap?ADuring heating, dry hydrogen gas is passed through

Semasa pemanasan, gas hidrogen kering dialirkan

BDuring cooling, dry hydrogen gas is passed through

Semasa penyejukan, gas hidrogen kering dialirkan

CDuring weighing, the combustion tube must be stoppered

Semasa penimbangan, tabung pembakaran perlu disumbat

DDuring heating, excess hydrogen gas is burntSemasa pemanasan, gas hidrogen berlebihan dibakar

6. Which of the following contains 6.02 x 1023 atoms?Antara berikut, yang manakah mengandungi 6.02 x 1023 atom?A1 mol of ammonia

1 mol ammoniaB1 mol of nitrogen gas

1 mol gas nitrogen

C1 mol of neon

1 mol neonD1 mol of chlorine gas

1 mol gas klorin

7. The following statements refer to the contributions of a scientist in the development of the Periodic Table.Pernyataan berikut merujuk kepada sumbangan seorang ahli sains dalam membangunkan Jadual Berkala.

Plotted the graph of the atomic volume against the atomic mass of the elementsMemplot graf isi padu atom melawan jisim atom bagi unsur-unsur

Successful in showing that the properties of the elements formed a periodic pattern with their atomic massesBerjaya menunjukkan bahawa sifat-sifat unsur membentuk pola berkala dengan jisim atom unsur itu

Who was the scientist?

Siapakah ahli sains tersebut?ALothar MeyerBJohn Newlands

CHenry MoseleyDDmitri Mendeleev

8. Diagram 2 shows an air balloon filled with gas X.Rajah 2 menunjukkan sebiji belon udara berisi gas X.

Diagram 2/ Rajah 2In which group is X located in the Periodic Table?

Dalam kumpulan manakah kedudukan X dalam Jadual Berkala?AGroup 15 [Kumpulan 15]BGroup 16 [Kumpulan 16]

CGroup 17 [Kumpulan 17]DGroup 18 [Kumpulan 18]

9. Diagram 3 shows a snail. The snail shell contains a natural ionic compound.

Rajah 3 menunjukkan seekor siput. Cangkerang siput mengandungi sebatian ion semula jadi.

Diagram 3/ Rajah 3Other than oxygen, what elements are contained in the ionic compound?

Selain oksigen, apakah unsur-unsur yang terkandung dalam sebatian ion itu?ACalcium and carbon

Kalsium dan karbonBCalcium and hydrogen

Kalsium dan hidrogen

CSodium and carbon

Natrium dan karbonDSodium and hydrogen

Natrium dan hidrogen

10. Table 1 shows the electron arrangements of atoms P, Q, R and S.

Jadual 1 menunjukkan susunan elektron bagi atom P, Q, R dan S.Atom

AtomElectron arrangement

Susunan elektron

P2.4

Q2.8.1

R2.8.2

S2.8.7

Table 1 / Jadual 1AP and S

P dan SBP and R

P dan R

CQ and S

Q dan SDQ and R

Q dan R

11. Which of the following is true about electrolysis?Antara pernyataan berikut, yang manakah benar tentang elektrolit?AElements that conduct electricity in molten stateUnsur yang mengalirkan arus elektrik dalam keadaan leburan

BCompounds that conduct electricity in solid stateSebatian yang mengalirkan arus elektrik dalam keadaan pepejal

CElements that conduct electricity in solid or molten state

Unsur yang mengalirkan arus elektrik dalam keadaan pepejal atau leburan

DCompounds that conduct electricity in molten state or aqueous state

Sebatian yang mengalirkan arus elektrik dalam keadaan leburan atau larutan akues

12. Which particles are produced when an electrolyte dissolves in water?Zarah manakah yang terhasil apabila elektrolit melarut dalam air?

AIons

Ion BAtoms

Atom

CElectrons

Elektron DMolecules

Molekul

13. Which of the following substances is acidic?Antara bahan berikut, yang manakah bersifat asid?AAmmonia

Ammonia BPotassium oxide

Kalium oksida

CCarbon dioxide

Karbon dioksida DSodium hydroxide

Natrium hidroksida

14. Which of the following particles in a solution of hydrogen chloride is responsible for its acidity properties?

Antara zarah-zarah berikut, yang manakah dalam larutan hidrogen klorida bertanggungjawab ke atas sifat asidnya?AH+ BOH-

CCl- DHCl

15. Which of the following statements is true about all bases?Antara pernyataan berikut, yang manakah benar tentang semua bes?AReact with acids

Bertindak balas dengan asid BDissolve in water

Larut dalam air

CContain hydroxide ions

Mengandungi ion-ion hidroksida DHave alkaline properties

Mempunyai sifat alkali

16. Which of the following is the soluble salt?

Antara berikut, yang manakah merupakan garam terlarutkan?

ABarium sulphate

Barium sulfat BKalium klorida

Potassium chloride

CLead(II) chloride

Plumbum(II) klorida DCalcium sulphate

Kalsium sulfat

17. Which of the following is correct about weak alkaline solution?

Antara yang berikut, yang manakah betul tentang larutan alkali lemah?AHave pH value of 13

Mempunyai nilai pH 13

BPartially ionized in water

Mengion separa dalam air

CConcentration of the solution is low

Kepekatan larutan adalah rendah

DSolution does not react with acid

Larutan tidak bertindak balas dengan asid

18. Which of the following gas is the main agent of pollution which causes acidic rain?

Antara berikut, gas yang manakah merupakan agen utama bagi pencemaran yang menyebabkan hujan asid?AOzone

Ozon BMethane

Metana

CSulphur dioxide

Sulfur dioksida DCarbon monoxide

Karbon monoksida

19. Which alloy is correctly matched to its uses?

Aloi yang manakah yang dipadankan betul dengan kegunaannya?

Alloy [Aloi]Uses [Kegunaan]

ABrass

Loyang Building of monument

Pembinaan tugu

BBronze

Gangsa Making of surgical instrument

Pembuatan alatan pembedahan

CStainless steel

Keluli nirkaratMaking of medals

Pembuatan pingat

DDuralumin

Duralumin Making of the body of aeroplanes

Pembuatan badan kapal terbang

20. Which process has the highest rate of reaction?

Proses manakah yang mempunyai kadar tindak balas yang paling tinggi?ARusting

Pengaratan BRespiration

Respirasi

CCombustion

Pembakaran DPhotosynthesis

Fotosintesis

21. Which compound is saturated hydrocarbon?

Sebatian manakah adalah suatu hidrokarbon tepu?APropene

Propena BPropane

Propana

CPropanol

Propanol DChloropropane

Kloropropana

22. Diagram 4 shows the observation of a reaction when a piece of metal X and metal Y of the same size are put into a beaker containing cold water.

Rajah 3 menunjukkan pemerhatian ke atas tindak balas apabila secebis logam X dan logam Y yang sama saiz diletakkan ke dalam bikar yang mengandungi air sejuk.

Diagram 4/ Rajah 4Which of the following explains the observation?

Antara yang berikut, yang manakah menerangkan pemerhatian itu?AMetal Y is harder than metal X

Logam Y lebih keras daripada logam X

BMetal Y is denser than metal X

Logam Y lebih tumpat daripada logam X

CThe atom of metal Y contains more protons than the atom of metal X

Atom logam Y mengandungi lebih banyak proton berbanding atom logam X

DThe atom of metal Y releases electrons more easily than the atom of metal X

Atom logam Y lebih mudah melepaskan elektron berbanding dengan atom logam X

23. What is the general formula for an alkane?

Apakah formula am bagi alkana?ACnH2n BCnH2n+2

CCnH2n+1COOH DCnH2n+1COOH

24. Element G reacts with element L to form a covalent compound with the formula GL2. The electron arrangement of an atom of L is 2.8.7. Unsur G bertindak balas dengan unsur L untuk membentuk suatu sebatian kovalen yang mempunyai formula GL2. Susunan elektron bagi atom L ialah 2.8.7.

Which of the following is a possible electron arrangement of an atom of G?Antara yang berikut, yang manakah susunan elektron yang mungkin bagi atom G?A2.8.1 B2.8.2

C2.8.4 D2.8.6

25. Which of the following graphs involving the reaction between sodium thiosulphate solutions and hydrochloric acid is correct?Antara berikut graf yang melibatkan tindak balas antara larutan natrium thiosulfat dan asid hidroklorik yang manakah benar?III

IIIIV

AI and III onlyI dan III sahajaBI and IV onlyI dan IV sahaja

CII and III onlyII dan III sahajaDII dan IV onlyII dan IV sahaja

26. Diagram 5 shows the set up of the apparatus for an experiment to determine the rate of reaction between sodium thiosulphate and sulphuric acid.Gambar rajah menunjukkan susunan radas bagi eksperimen bagi menentukan kadar tindak balas antara natrium tiosulfat dengan asid sulfurik

Diagram 5/ Rajah 5Which of the following combinations of conditions take the shortest time for the mark X to disappear from sight?Antara kombinasi keadaan berikut yang manakah mengambil masa yang paling singkat untuk tanda X hilang daripada penglihatan?Sulphuric acidAsid sulfurikSodium thiosulphate solutionLarutan natrium tiosulfatTemperature/

Suhu/oC

Volume/cm3Isipadu/cm3Concentration/moldm-3Volume/cm3Isipadu/cm3Concentration/moldm-3

A101.0500.530

B101.0500.540

C100.5500.530

D100.5400.540

27. Which of the following reactants produces the highest rate of reaction with zinc powder?Antara bahan tindak balas berikut, yang manakah menghasilkan kadar tindak balas paling tinggi dengan serbuk zink?A25cm3 of sulphuric acid 0.1 moldm-325cm3 asid sulfurik 0.1 moldm-3

B25cm3 of ethanoic acid 0.1 moldm-325cm3 of asid etanoik 0.1 moldm-3

C25cm3 of nitric acid 0.1 moldm-325cm3 asid nitrik 0.1 moldm-3

D25cm3 of hydrochloric acid 0.1 moldm-3

25cm3 asid hidroklorik 0.1 moldm-328. Which of the following is wrongly paired?Antara padanan berikut yang manakah adalah salah?Chemical Process

Proses KimiaCatalyst

Mangkin

AContact Process

Proses SentuhVanadium(V) oxide

Vanadium (V) oksida

BHaber Process

Proses HaberIron powder

Serbuk besi

COstwald Process

Proses OstwaldCopper(II) sulphate

Kuprum(II) sulfat

DHydrogenation of vegetable oil into margarine

Penghidrogenan minyak sayuran kepada margerinNickel powder

Serbuk nikel

29. The following statements are related to the collision theory of a reaction.Pernyataan berikut adalah berkaitan dengan teori perlanggaran bagi satu tindak balas.IThe total surface area of the reactant particles increasesJumlah luas permukaan zarah bahan tindak balas bertambah

IIThe kinetic energy of the reactant particles increasesTenaga kinetic zarah bahan tindak balas bertambah

IIIThe frequency of the collision between the reactant particles increasesFrekuensi perlanggaran antara zarah bahan bertambah

IVThe number of the reactant particles per one unit of volume increasesBilangan zarah tindak balas dalam satu minit bertambah

Which of the following combinations is true about the effect of the rise in temperature on the reactant particles?Antara kombinasi berikut, yang manakah benar tentang kesan peningkatan suhu ke atas zarah tindak balas?AI and II onlyI dan II sahajaCIII and IV onlyIII dan IV sahaja

BII and III onlyII dan III sahajaDI and IV onlyI dan IV sahaja

30. The reaction between zinc, Zn, and hydrochloric acid, HCl, is represented by the following equation:Tindak balas antara zink, Zn, dengan asid hidroklorik, HCL, diwakili dengan persamaan berikut:

Zn(s) + 2HCl(aq) ( ZnCl2(aq) + H2(g)

A student wants to determine the rate of reaction in a school laboratory.

Which of the following methods is the most suitable?Seorang murid ingin menentukan kadar tindak balas itu di makmal sekolah.

Antara kaedah berikut, yang manakah yang paling sesuai?

ADetermine the change in temperature of the solution with timeMenentukan perubahan suhu larutan dengan masa

BDetermine the change in the concentration of zinc chloride with timeMenentukan perubahan kepekatan zink klorida dengan masa

CDetermine the volume of hydrogen gas given off with timeMenentukan isipadu gas hidrogen yang terbebas dengan masa

DDetermine the change in the concentration of hydrochloric acid with timeMenentukan perubahan kepekatan asid hidroklorik dengan masa

31. Which of the following is the correct match of a low rate of reaction and a high rate of reaction?Manakah antara yang berikut pasangan yang betul untuk kadar tindak balas rendah dan kadar tindak balas tinggi?Low rate of reactionHigh rate of reaction

ANeutralisation between hydrochloric acid and sodium hydroxide solutionPeneutralan antara asid hidroklorik dan natrium hidroksidaIron rustingPengaratan besi

BDouble decomposition between lead(II) nitrate solution and potassium iodide solutionPenguraian ganda dua antara larutan plumbum(II) nitrat dan larutan kalium iodidaNeutralisation between hydrochloric acid and sodium hydroxide solutionPeneutralan antara asid hidroklorik dan larutan natrium hidroksida

CIron rustingPengaratan besiFermentation of glucose solutionPenapaian larutan glukos

DFermentation of glucose solutionPenapaian larutan glukosDouble decomposition between lead(II) nitrate solution and potassium iodide solutionPenguraian ganda dua antara larutan plumbum(II) nitrat dan larutan kalium iodida

32. The following chemical equation shows the reaction between zinc and hydrochloric acid.

Persamaan kimia yang berikut menunjukkan tindak balas antara zink dan asid hidroklorik.

Zn (s) + HCl (aq) ( ZnCl2 (aq) + H2(g)Which changes can be used to determine the rate of reaction?

Perubahan yang manakah boleh digunakan untuk menentukan kadar tindak balas?

AThe mass of zinc per unit time

Jisim zink per unit masa

BThe colour of the solution per unit time

Warna larutan per unit masa

CThe mass of zinc chloride per unit time

Jisim zink klorida per unit masa

DThe volume of hydrochloric acid per unit time

Isi padu asid hidroklorik per unit masa

33. The reaction between dilute nitric acid and zinc produces hydrogen gas. The reaction completes within 60 seconds and the maximum volume of gas released is 120cm3. Calculate the average rate of reaction for the reaction. Tindak balas antara asik nitrik cair dan zink menhasilkan gas hydrogen. Tindak balas sempurna dalam masa 60 saat dan isipadu maksimum gas yang terbebas ialah 120 cm3Kira purata tindak balas bagi tindak balas tersebutA0.5 cm3s-1C1.5 cm3s-1

B1.0 cm3s-1D2.0 cm3s-1

34. Sodium thiosulphate reacts with hydrochloric acid to produce sulphur. Which of the following graphs represents the relation between the concentration of sodium thiosulphate and time for the forming of sulphur?Natrium tiosulfat bertindak balas dengan asid hidroklorik menghasilkan sulfur. Antara graf yang berikut yang manakah mewakili hubungan antara kepekatan natrium tiosulfat dan masa penghasilan sulfur?

35. Hydrogen peroxide decompose according to the following equation:Hydrogen peroksida mengurai berdasarkan persamaan berikut:2H2O2(aq) ( 2H2O(l) + O2(g)

Which of the following condition has the highest rate of oxygen gas produced?Keadaan yang manakah mempunyai kadar penghasilan gas oksigen yang paling tinggi?

Concentration of H2O2 (moldm-3)Kepekatan H2O2Temperature of H2O2 /CSuhu H2O2

A0.2528

B0.2530

C0.5028

D0.5030

36. Curve P in the below diagram 6 shows a graph of the decomposition of 20cm3 of 0.40 moldm-3 hydrogen peroxide, H2O2, by using 0.2 g of manganese(IV) oxide as catalyst at a temperature of 30oC.Lengkung P dalam gambar rajah berikut menunjukkan graf penguraian 20 cm3 hidrogen peroksida 0.40 moldm-3 , H2O2 dengan menggunakan 0.2 g mangan(IV) oksida sebagai mangkin pada suhu 30oC

Diagram 6/ Rajah 6Which of the following will produce curve Q?Yang manakah menghasilkan lengkung Q?

Volume of H2O2 (cm3)Isi padu H2O2 (cm3)

Concentration of H2O2 (moldm-3)Kepekatan H2O2 (moldm-3) Temperature/suhu (oC)Mass of MnO2 used/Jisim MnO2 yang digunakan (g)

A100.60300.2

B150.20300.2

C200.60400.2

D300.30400.2

37. Diagram 7 shows the graph obtained when volume of oxygen gas produced from catalysed decomposition of hydrogen peroxide is plotted against time.Gambar rajah menunjukkan graf yang diperolehi apabila isi padu gas oksigen terhasil daripada penguraian hydrogen peroksida dengan kehadiran mangkin

Diagaram 7/ Rajah 7Which of the following statements is true?Pernyataan yang manakah adalah benar?ARate of reaction at time t1 is V1/t1 cm3 min-1Kadar tindak balas pada masa t1 ialah V1/t1 cm3 min-1

BRate of reaction is maximum at time t4Kadar tindak balas maksimum ialah pada masa t4

CRate of reaction minimum at time t4

kadar tindak balas minimum ialah pada masa t4

DRate of reaction is zero at time t4Kadar tindak balas islah sifar pada masa t4

38. Which of the following will increase the collision frequency between particles in a chemical reaction?Yang manakah antara berikut akan meningkatkan frekuensi perlanggaran di antara zarah dalam tindak balas kimia?

AIncreasing the size of the particlesPeningkatan saiz zarah

BIncreasing the temperature of the reactants.Peningkatan suhu bahan tindak balas

CDecreasing the concentration of the reactants.Penurunan kepekatan bahan tindak balas

DDecreasing the pressure surrounding the reactants.Penurunan tekanan bahan tindak balas persekitaran

39. Table shows the volume of oxygen gas collected at fixed intervals for the decomposition of hydrogen peroxide, H2O2.Jadual menunjukkan isi padu gas oksigen yang terkumpul pada selang masa yang telah ditetapkan untuk penguraian hydrogen peroksida, H2O2Time(s)06090120150180

Volume of oxygen gas Isi padu gas oksigen(cm3)05.012.014.017.521.0

Table 2/ Jadual 2The average rate of decomposition of hydrogen peroxide from the first minute to the third minute isPurata tindak balas penguraian hydrogen peroksida dari minit pertamahingga ke minit ketiga ialah

A7.8 cm3min-1C13.5 cm3min-1

B8.0 cm3min-1D16.0 cm3min-1

40. Diagram shows a graph which represents the rate of reaction between hydrochloric acid and excess marble chips to produce carbon dioxide gas.Gambar rajah berikut menunjukkan yang mewakili kadar tindak balas antara asid hidroklorik dan cebisan marmar untuk menghasilkan gas karbon dioksida

Diagram 8/ Rajah 8Which of the following pairs of acid used will produce graph Y and Z respectively?Pasangan asid yang manakah akan menghasilkan graf X dan Y masing-masing?Graph Y/Graf YGraph Z/ Graf Z

A20 cm3 of 0.5 moldm-3 hydrochloric acid/asid hidroklorik5 cm3 of 1.0 moldm-3 hydrochloric acid/asid hidroklorik

B10 cm3 of 0.5 moldm-3 hydrochloric acid/ asid hidroklorik10 cm3 of 1.0 moldm-3 hydrochloric acid/ asid hidroklorik

C5 cm3 of 1.0 moldm-3 hydrochloric acid/ asid hidroklorik10 cm3 of 0.5 moldm-3 hydrochloric acid/ asid hidroklorik

D5 cm3 of 1.0 moldm-3 hydrochloric acid/ asid hidroklorik5 cm3 of 0.5 moldm-3 hydrochloric acid/ asid hidroklorik

41. The following equation shows the reaction between 100 cm3 of 2.0 moldm-3 hydrochloric acid and 5 g of marble chips.Persamaan kimia berikut menunjukkan tindak balas antara 100 cm3 of 2.0 moldm-3 asid hidroklorik dan 5 g cebisan marmar.

Which of the following is the effect on the initial rate of reaction and the volume of carbon dioxide gas released, if the experiment is repeated by adding 50 cm3 of distilled water to the hydrochloric acid?Yang manakah berikut adalah kesan terhadap kadar tindak balas awal dan isi padu gas karbon dioksida yang dibebaskan sekiranya eksperimen ini diulangi dengan menambah 50 cm3 air suling kepada asid hidroklorik?Initial rate of reaction/

Kadar tindak balas awalVolume of carbon dioxide gas/Isi padu gas karbon dioksida

AIncreases / Meningkat Increases/ Meningkat

BDecreases/ MenurunNo changes/ Tiada perubahan

CIncreases/ Meningkat

Decreases/ Menurun

DNo changes/ Tiada perubahanNo changes/ Tiada perubahan

42. Which of the following statement best explains why coal mine explosions can occur easily?Pernyataan yang manakah paling sesuai menerankan mengapa letupan di lombong arang batu berlaku dengan mudah?

ACoal is a highly flammable substance.Arang batu ialah bahan mudah terbakar

BHuge amount of heat energy is released in the combustion of coal in the coal mine.Jumlah tenaga haba yang dibebaskan semasa pembakaran arang batu di lombong arang batu adalah besar

CCoal mine is filled with fine coal dust that catches fire easily.Lombong arang batu dipenuhi dengan habuk arang batu yang mudah terbakar

DCoal mine provides more oxygen gas for the combustion reaction.Lombong arang batu membekalkan lebih banyak gas oksigen semasa tindak balas pembakaran

43. In a reaction, an increase in temperature will increase the rate of reaction becauseDalam tindak balas, peningkatan suhu akan meningkatkan kadar tindak balas kerana

IActivation energy of reaction decreases.Tenaga pengaktifan tindak balas berkurang

IIEnergy of reacting particles increases.Tenaga dalam zarah tindak balas meningkat

IIIEffective collision of reacting particles decreases.Perlanggaran berkesan zarah tindak balas berkurang

IVRate of collision among reacting particles increases.Kadar perlanggaran di antara zarah tindak balas meningkat

AII onlyII sahajaCI, II and IV onlyI,II dan IV sahaja

BII and IV onlyII dan IV sahajaDI, II, III and IVI,II,III dan IV

44. The rate of reaction increases when copper(II) sulphate solution is added to a mixture of zinc and hydrochloric acid. Which of the following statements explains why the rate of reaction increases?Kadar tindak balas meningkat apabila larutan kuprum(II) sulfat ditambah ke dalam satu campuran zink dan asid hidroklorik. Antara berikut, pernyataan yang manakah menerangkan mengapa kadar tindak balas meningkat?AThe activation energy is loweredTenaga pengaktifan direndahkan

BThe concentration of hydrogen ion increasesKepekatan ion hidrogen meningkat

CThe kinetic energy of the reactant particles increasesTenaga kinetik zarah-zarah bahan tindak balas meningkat

DThe number of collision between the reactant particles increasesBilangan perlanggaran antara zarah-zarah bahan tindak balas meningkat

45. Table shows the observations in three tests on solution xTest / UjianObservation/Pemerhatian

I. Add sodium hydroxide solution until in excess

Tambah larutan ammnia sehingga berlebihanWhite precipitate which dissolves in excess sodium hydroxide solution

Mendakan putih larut dalam larutan natrium hidroksida berlebihan

II. Add ammonia solution until in excess

Tambah larutan ammonia sehingga berlebihanWhite precipitate which dissolves in excess ammonia solution

Mendakan putih larut dalam larutan ammonia berlebihan

III. Add 2 cm3 of dilute nitric acid and a few drops of silver nitrate solution

Tambah 2cm3 asid nitric cair dan beberapa titik larutan argentum nitratWhite precipitate formed

Mendakan putih terhasil

Table 3/ Jadual 3What is X?

Apakah X?A. Zinc chloride

Zink kloridaB. Zinc sulphate

Zink sulfatC. Aluminium chlorideAluminium kloridaD. Aluminium sulphate

Aluminium sulfat46. Which equation represent double decomposition reactions that form precipitate?

Persamaan manakah yang mewakili tindak balas penguraian ganda dua yang menghasilkan mendakan?I. CuSO4 + Na2CO3 CuCO3 + Na2SO4II. CuSO4 + Mg(NO3)2 Cu(NO3)2 + MgSO4III. AgNO3 + NaCl AgCl + NaNO3IV. ZnCl2 + Na2SO4 ZnSO4 +2NaCl

A. I and III dan IIB. I and III

I dan IIIC. II and IV

II dan IVD. III and IV

III dan IV

47. When the temperature of a reacting mixture increases, the rate of reaction increases. Which statement explains why the rate of reaction increases?

Apabila suhu campuran bahan tindak balas meningkat, kadar tindak balas meningkat.

Pernyataan manakah yang menerangkan mengapa kadar tindak balas meningkat?A. The total surface area of the reactant particles increasesJumlah luas permukaan zarah-zarah bahan tindak balas meningkat

B. The total number of the reactant particles per unit volume increases

Jumlah bilangan zarah-zarah bahan tindak balas per unit isi padu meningkat

C. The reactant particles move faster and collide more often with one another

Zarah-zarah bahan tindak balas bergerak lebih cepat dan berlanggar lebih kerap antara satu sama lain

D. The reactant particles which collide more often are able to overcome the lower activation energyZarah-zarah bahan tindak balas yang berlanggar lebih kerap boleh mengatasi tenaga pengaktifan yang lebih rendah

48. Diagram shows the structural formula of an ester.

Rajah menunjukkan formula struktur bagi satu ester

What are the names of alcohol and carboxylix acid used to prepare the ester?Apakah nama alkohol dan nama asid karboksilik yang digunakan untuk menyediakan ester itu?I. Propan-2-ol and ethanoic acid

Propan-2-ol dan asid etanoik

II. Propan-1-ol and propanoic acid

Propan-1-ol dan asid propanoik

III. Ethanol and ethanoic acid

Etanol dan asid etanoik

IV. Ethanol and propanoic acid

Etanol dan asid propanoik

49. Which of the following equation can produce fruit flavoring?

I. CH3COOH + NaOH CH3COONa + H2O

II. C2H5OH + C2H5COOH C2H5COOC2H5 + H2O

III. C3H7OH + 2[O] C2H5COOH + H2O

IV. C8H17OH + CH3COOH CH3COOC8H17 + H2O

AI and III onlyI dan III sahajaC II and IV onlyII dan IV sahaja

BIII and IV onlyIII dan IV sahajaDI, II, and IVI,II, dan IV

50. Table shows information about three voltaic cellsJadual menunjukkan maklumat tentang tiga sel voltan

Pair of metals/

pasangan logamPotential difference/

Beza keupayaan (V)Positive terminal/

Terminal positif

R,S0.6S

S,T2.1S

U,T1.3U

Table 4/ Jadual 4What is a possible potential difference of the voltaic cell when metal U is paired with metal R?Apakah kemungkinan beza keupayaan bagi sel votan itu sekiranya pasangan logam U dan logam R digunakan?A. 0.2 V

B. 0.8 V

C. 1.5 V

D. 1.9 VLook vertically down

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White paper

Kertas putih

Mark X/ Tanda X

Sodium thiosulphate solution

Larutan natrium tiosulfat dan larutan asid sulfurik

C

A

Concentration of sodium

thiosulphate (mol dm-3)

Time (s)

Concentration of sodium

thiosulphate (mol dm-3)

Time (s)

D

B

Concentration of sodium

thiosulphate (mol dm-3)

Time (s)

Concentration of sodium

thiosulphate (mol dm-3)

Time (s)

P

Q

Volume of oxygen/Isipadu oksigen (cm3)

Time /masa(minutes)

P

Volume of oxygen/Isipadu oksigen (cm3)

Time/ Masa (minutes/minit)

V1

V2

V3

t1

t2

t3

t4

0

Y

Z

Volume of carbon dioxide gas (cm3)

Time (minutes)

2HCl(aq) + CaCO3(s) ( CaCl2(aq) + CO2(g) + H2O(l)