soalan ppt form 5 2015 kertas 1

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1. Which of the following explains correctly about chemistry? Antara pernyataan yang berikut, yang manakah menghuraikan kimia dengan betul? A Chemistry is the study about matter. Kimia ialah kajian tentang jirim. B Chemistry is the art of transforming metal. Kimia ialah suatu seni penukaran logam. C Chemistry is the systematic study about natural phenomenon. Kimia ialah kajian sistematik tentang fenomena alam. D Chemistry 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] 2005 Q1 Who introduced this model? Siapakah yang memperkenalkan model ini? A James Chadwick B Neils Bohr C Ernest Rutherford D John 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

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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] 2005 Q1

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?ADiagram 2006 Q1

B

CD

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 burnt

Semasa 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.Rajah 2 [Diagram 2] 2010 Q9

In 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.

Other 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 1]AP 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 state

Unsur yang mengalirkan arus elektrik dalam keadaan leburan

BCompounds that conduct electricity in solid state

Sebatian 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 3 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 3 [Rajah 3]Which 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. The diagram shows the set up of the apparatus for an experiment to determine the rate of reaction between sodium thiosulphate and sulphuric acid.

Which of the following combinations of conditions take the shortest time for the mark X to disappear from sight?

Sulphuric acidSodium thiosulphate solutionTemperature/oC

Volume/cm3Concentration/moldm-3Volume/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?

A25cm3 of sulphuric acid 0.1 moldm-3

B25cm3 of ethanoic acid 0.1 moldm-3

C25cm3 of nitric acid 0.1 moldm-3

D25cm3 of hydrochloric acid 0.1 moldm-3

28. 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.IThe total surface area of the reactant particles increases

IIThe kinetic energy of the reactant particles increases

IIIThe frequency of the collision between the reactant particles increases

IVThe number of the reactant particles per one unit of volume increases

Which of the following combinations is true about the effect of the rise in temperature on the reactant particles?

AI and II onlyCIII and IV only

BII and III onlyDI and IV only

30. The reaction between zinc, Zn, and hydrochloric acid, HCl, is represented by the following equation: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?

ADetermine the change in temperature of the solution with time

BDetermine the change in the concentration of zinc chloride with time

CDetermine the volume of hydrogen gas given off with time

DDetermine the change in the concentration of hydrochloric acid with time

31. Which of the following is the correct match of a low rate of reaction and a high rate of reaction?Low rate of reactionHigh rate of reaction

ANeutralisation between hydrochloric acid and sodium hydroxide solutionIron rusting

BDouble decomposition between lead(II) nitrate solution and potassium iodide solutionNeutralisation between hydrochloric acid and sodium hydroxide solution

CIron rustingFermentation of glucose solution

DFermentation of glucose solutionDouble decomposition between lead(II) nitrate solution and potassium iodide solution

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. The reaction completes within 60 seconds and the maximum volume of gas released is 120cm3. Calculate the average rate of reaction for the reaction. A0.5 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?

35. Hydrogen peroxide decompose according to the following equation:

2H2O2(aq) ( 2H2O(l) + O2(g)

Which of the following condition has the highest rate of oxygen gas produced?

Concentration of H2O2 (moldm-3)Temperature of H2O2 (moldm-3)

A0.2528

B0.2530

C0.5028

D0.5030

36. Curve P in the below diagram 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.

Which of the following will produce curve Q?

Volume of H2O2 (cm3)Concentration of H2O2 (moldm-3)Temperature (oC)Mass of MnO2 used (g)

A100.60300.2

B150.20300.2

C200.60400.2

D300.30400.2

37. Diagram shows the graph obtained when volume of oxygen gas produced from catalysed decomposition of hydrogen peroxide is plotted against time.

Which of the following statements is true?

ARate of reaction at time t1 is V1/t1 cm3 min-1

BRate of reaction is maximum at time t4

CRate of reaction maximum at time t4

DRate of reaction is zero at time t4

38. Which of the following will increase the collision frequency between particles in a chemical reaction?

AIncreasing the size of the particles

BIncreasing the temperature of the reactants.

CDecreasing the concentration of the reactants.

DDecreasing the pressure surrounding the reactants.

39. Table shows the volume of oxygen gas collected at fixed intervals for the decomposition of hydrogen peroxide, H2O2.Time(s)06090120150180

Volume of oxygen gas (cm3)05.012.014.017.521.0

The average rate of decomposition of hydrogen peroxide from the first minute to the third minute is

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.

Which of the following pairs of acid used will produce graph Y and Z respectively?

Graph YGraph Z

A20 cm3 of 0.5 moldm-3 hydrochloric acid5 cm3 of 1.0 moldm-3 hydrochloric acid

B10 cm3 of 0.5 moldm-3 hydrochloric acid10 cm3 of 1.0 moldm-3 hydrochloric acid

C5 cm3 of 1.0 moldm-3 hydrochloric acid10 cm3 of 0.5 moldm-3 hydrochloric acid

D5 cm3 of 1.0 moldm-3 hydrochloric acid5 cm3 of 0.5 moldm-3 hydrochloric acid

41. The following equation shows the reaction between 100cm3 of 2.0 moldm-3 hydrochloric acid and 5 g of marble chips.

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?

Initial rate of reactionVolume of carbon dioxide gas

AIncreases Increases

BDecreasesNo changes

CIncreasesDecreases

DNo changesNo changes

42. Which of the following best explains why coal mine explosions can occur easily?

ACoal is a highly flammable substance.

BHuge amount of heat energy is released in the combustion of coal in the coal mine.

CCoal mine is filled with fine coal dust that catches fire easily.

DCoal mine provides more oxygen gas for the combustion reaction.

43. In a reaction, an increase in temperature will increase the rate of reaction becauseIActivation energy of reaction decreases.

IIEnergy of reacting particles increases.

IIIEffective collision of reacting particles decreases.

IVRate of collision among reacting particles increases.

AII onlyCI, II and IV only

BII and IV onlyDI, II, III and 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. Pernyataan berikut adalah berkaitan dengan teori perlanggaran bagi satu tindak balasThe following statements are related to the collision theory of a reaction.I. Jumlah luas permukaan zarah bahan tindak balas bertambah46. Persamaan kimia berikut menunjukkan pembakaran lengkap bagi gas etana.

47. Jadual menunjukkan maklumat tentang tiga set voltan

48. Jadual menunjukkan pemerhatian bagi tiga ujian ke atas larutan X

49. Persamaan manakah yang mewakili tindak balas penguraian ganda dua yang menghasilkan mendakan?

50. Apabila suhu campuran bahan tindak balas meningkat, kadar tindak balas meningkat. Pernyataan manakah yang menerangkan mengapa kadar tindak balas meningkat?

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

Sodium thiosulphate

solution

Mark X

White paper

Look vertically down

Time (s)

Concentration of sodium

thiosulphate (mol dm-3)

Time (s)

Concentration of sodium

thiosulphate (mol dm-3)

Time (s)

Concentration of sodium

thiosulphate (mol dm-3)

Time (s)

Concentration of sodium

thiosulphate (mol dm-3)

A

C

B

D

Time (minutes)

Volume of oxygen (cm3)

Q

P

0

t4

t3

t2

t1

V3

V2

V1

Time (minutes)

Volume of oxygen (cm3)

P

Time (minutes)

Volume of carbon dioxide gas (cm3)

Z

Y