gerak gempur chemistry paper 1

Gerak Gempur SPM Chemistry paper 1

1 Which of the following substances is made up of atoms?Antara berikut, bahan yang manakah terdiri daripada atom?

A

B

C

D

IronFerum

Oxygen gasGas oksigen

NaphthaleneNaftalena

Sodium chlorideNatrium klorida

2 The equation below shows the reaction between magnesium and hydrochloric acid,Persamaan di bawah menunjukkan tindakbalas antara magnesium dan asid hidroklorik

Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g)

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

[Relative atomic mass of H = 1. Mg = 24, Cl = 35.5][Jisim atom relatif H = 1, Mg = 24, Cl = 35.5]

A

B

C

D

1 g magnesium react with 2 g hydrochloric acid to produce 1 g magnesium chloride and 1 g hydrogen gas1 g magnesium bertindak balas dengan 2 g asid hidroklorik menghasilkan 1 g magnesium klorida dan 1 g gas hidrogen

24 g magnesium react with 36.5 g hydrochloric acid to produce 95 g magnesium chloride and 2 g hydrogen gas24 g magnesium bertindak balas dengan 36.5 g asid hidroklorik menghasilkan 95 g magnesium klorida dan 2 g gas hidrogen

1 mol magnesium react with 2 mol hydrochloric acid to produce 1 mol magnesium chloride and 1 mol hydrogen gas1 mol magnesium bertindak balas dengan 2 mol asid hidroklorik menghasilkan 1 mol magnesium klorida dan 1 mol gas hidrogen

1 magnesium atom reacts with 2 hydrochloric acid molecule to produce 1 magnesium chloride molecule and 1 hydrogen gas molecule1 atom magnesium bertindak balas dengan 2 molekul asid hidroklorik menghasilkan 1 molekul magnesium klorida dan 1 molekul gas hidrogen


3 Which of the following chemists arranged the elements in order of increasing atomic mass in The Periodic Table ? Antara ahli kimia berikut, yang manakah menyusun unsur-unsur dalam Jadual Berkala berdasarkan pertambahan jisim atom?

A

B

C

D

Dmitri Mendeleev

Johann Dobereiner

John Newlands

Henry Moseley

4 Element J has 11 electrons Unsur J mempunyai 11 elektron.

Which of the following electron arrangements represent ion J? Antara susunan elektron berikut, yang manakah mewakili ion J?

5 The ions that are present in copper(II) sulphate solution areIon-ion yang wujud dalam larutan kuprum(II) sulfat ialah

A

B

C

D

Cu2+, SO42-

Cu2+, SO42-, H+

Cu2+, SO42-, OH-

Cu2+, SO42-, H+, OH-

2

A

D

C

B


6 Which of the following is a strong acid?Antara yang berikut, yang manakah asid kuat?

A

B

C

D

Alkyl sulphonic acid Asid Alkil sulfonik

Ethanoic acidAsid etanoik

Palmitic acidAsid palmitik

Nitric acidAsid nitrik

7 Which of the following is a salt ?Antara berikut, yang manakah merupakan garam?

A

B

C

D

Lead (II) oxidePlumbum(II) oksida

Barium hydroxideBarium hidroksida

Aluminium nitrateAluminium nitrat

Hydrogen sulphateHidrogen sulfat

8 Which of the following is true about manufactured substance in industry and its uses?Antara yang berikut,,yang manakah benar tentang bahan buatan dalam industri dengan kegunaannya?

3

Manufactured substance in industryBahan Buatan Industri

UsesKegunaan

A PolythenePolitena

LensesKanta

B Lead glassKaca Plumbum

MirrorCermin

C Photochromic glassKaca fotokromik

Optical lensesKanta cermin mata

D Plastic reinforced with glassPlastik yang diperkukuhkan dengan kaca

Test tubeTabung uji


9 Which of the following statements best explain the decrease in rate of decomposition of hydrogen peroxide with time?Antara pernyataan berikut,yang manakah menerangkan pengurangan kadar penguraian hidrogen peroksida dengan masa ?

A

B

C

D

Product of reaction decreasesHasil tindak balas berkurang

Temperature of hydrogen peroxide decreases Suhu hidrogen peroksida berkurang

Volume of hydrogen peroxide decreasesIsipadu hidrogen peroksida berkurang

Concentration of hydrogen peroxide decreasesKepekatan hidrogen peroksida berkurang

10 Which of the following chemicals is used to keep latex in its liquid state? Antara bahan kimia berikut, yang manakah digunakan untuk mengekalkan lateks dalam keadaan cecair?

A

B

C

D

Aqueous ammoniaAmmonia akueous

Ethanoic acidAsid ethanoik

MethanolMetanol

WaterAir

11 Diagram 1 shows the set up of apparatus for a chemical reaction.Rajah 1 menunjukkan susunan radas bagi satu tindak balas kimia.

DIAGRAM 1 RAJAH 1

4

Magnesium stripKepingan magnesium

Agar solutionLarutan agar-agar

Iron stripKepingan ferum


Which of the following statements is true for the reaction?Antara pernyataan berikut, yang manakah benar mengenai tindak balas itu?

A

B

C

D

Iron is reduced

Ferum diturunkan

Iron is an oxidising agent Ferum adalah agen pengoksidaan

Magnesium releases electron Magnesium membebaskan elektron

The oxidation number of magnesium decreasesNombor pengoksidaan magnesium berkurang

12 What is the meaning of heat of reaction?Apakah maksud haba tindak balas?

A The energy needed to break the chemical bondTenaga yang diperlukan untuk memecahkan ikatan kimia

B The energy needed to start a reactionTenaga yang diperlukan untuk memulakan tindak balas

C The energy involved when change of state of matter occursTenaga yang dibebaskan apabila perubahan keadaan bahan berlaku

D The change in the energy contained in the products and in the reactantsPerubahan kandungan tenaga dalam hasil tindak balas dan bahan tindak balas

13 The body of an aeroplane is made up of alloy X. Badan sebuah kapalterbang dibina dari sejenis aloi X.

What is the alloy X? Apakah aloi X itu?

A

B

PewterPiuter

BrassLoyang

5


C

D

BronzeGangsa

DuraluminDuralumin

14 Which of the following is true about the charges of an electron, a neutron and a proton?Antara yang berikut, yang manakah benar tentang cas-cas bagi elektron, neutron dan proton?

A

B

C

D

15 Which of the following pair of compounds and formulae is correct? Antara berikut, yang manakah pasangan sebatian dan fomulanya betul?

A

B

C

D

Compound FormulaSebatian Formula

Sodium sulphate NaSO4 Natrium sulfat

Copper(II) oxide Cu2OKuprum(II) oksida

Iron(III) chloride FeCl3

Ferum(III) klorida

Zinc nitrate Zn(NO2)3

Zink nitrat

16 Astatine is below iodine in Group 17 of Periodic Table. Astatine terletak di bawah iodin dalam Kumpulan17 Jadual Berkala.

Which of the following statements is true for astatine? Antara pernyataan berikut, yang manakah benar tentang astatine? A

B

Form basic oxideMembentuk oksida alkali

Exists as monoatomWujud sebagai monoatom

6

ElectronElektron

NeutronNeutron

ProtonProton

NegativeNegatif

PositivePositif

NeutralNeutral

PositivePositif

NeutralNeutral

NegativeNegatif

PositivePositif

NegativeNegatif

NeutralNeutral

NegativeNegatif

NeutralNeutral

PositivePositif


C

D

Solid at room temperaturePepejal pada suhu bilik

More electronegativity than iodineLebih elektronegatif daripada iodin

17 The diagram 2 shows the electron arrangement of a molecule of water ,H2 ORajah 2 menunjukkan susunan elektron bagi molekul air ,H2O

DIAGRAM 2 RAJAH 2 Which of the following statements is true about the molecule? Antara pernyataan berikut, yang manakah benar tentang molekul itu ?

A

B

C

D

The compound has high melting pointSebatian mempunyai takat lebur yang tinggi

Oxygen atom ,O has four pairs of electrons to shareAtom oksigen, O mempunyai empat pasang elektron untuk di kongsi

The bonding between molecules of water, H2 O is of Van der Waals forcesIkatan antara molekul air, H2 O ialah daya Van der Waals

Each oxygen atom , O receives two electrons to form an oxide ionSetiap atom oksigen, O menerima dua elektron untuk membentuk satu ion oksida.

18 The diagram 3 shows the set up of the apparatus of a simple chemical cell.The reading on the voltmeter is 0.5 V.Rajah 3 menunjukkan satu radas bagi satu sel kimia yang ringkas.Bacaan pada voltmeter ialah 0.5 V.

7

0.5V

H O H


DIAGRAM 3 RAJAH 3

Which of the following will give the biggest increment in the reading on the voltmeter?Antara berikut, yang manakah akan meningkatkan bacaan paling tinggi pada voltmeter?

A

B

C

D

Increase the volume of iron(II) sulphate solutionTambahkan isipadu ferum(II) sulfat

Substitute the iron plate with a silver plateGantikan kepingan ferum dengan kepingan argentum

Use a more dilute iron(II) sulphate solutionGunakan larutan ferum(II) sulfat yang lebih cair

Substitute the zink plate with an aluminium plateGantikan kepingan zink dengan kepingan aluminium

19 Which of the following is true about alloy and its major component? Antara berikut yang manakah benar tentang aloi dan juzuk utamanya

AlloyAloi

Major componentKomponen utama

A DuraluminDuralumin

MagnesiumMagnesium

B SteelKeluli

TinStanum

C BronzeGangsa

CopperKuprum

D PewterPiuter

ZincZink

20 Which of the following solutions contain the same number of hydrogen ion, H+?Antara larutan berikut, yang manakah mengandungi bilangan ion hidrogen, H+ yang sama?

[Avogadro number = 6.02 x 1023 mol-1 ][Nombor Avogadro = 6.02 x 1023 mol-1 ]

8

Iron(II) sulphate solutionLarutan ferum(II) sulfat

Iron plateKepingan ferum

Zinc plateKepingan zink


I

II

III

IV

A

B

C

D

50 cm3 of 1.0 mol dm-3 of nitric acid50 cm3 of 1.0 mol dm-3 acid nitrik

100 cm3 of 0.5 mol dm-3 of hydrochloric acid100 cm3 of 0.5 mol dm-3 acid hidroklorik

25 cm3 of 1.0 mol dm-3 of sulphuric acid25 cm3 of 1.0 mol dm-3 acid sulfurik

200 cm3 of 0.5 mol dm-3 of ethanoic acid200 cm3 of 0.5 mol dm-3 acid etanoik

I and III onlyI dan III sahaja

II and IV onlyII dan IV sahaja

I, II and III onlyI, II dan III sahaja

II, III and IV onlyII, III dan IV sahajay

21 Which of the following explains the meaning of effective collision?Antara pernyataan berikut, yang manakah menjelaskan maksud perlanggaran berkesan?

A

B

C

D

The collision that causes a reactionPerlanggaran yang menghasilkan tindak balas

The collision that has a low energyPerlanggaran yang mempunyai tenaga yang rendah

The collision which takes place before a reactionPerlanggaran yang berlaku sebelum sesuatu tindak balas

The collision where its energy is less than the activation energyPerlanggaran yang tenaganya kurang daripada tenaga pengaktifan

22 Diagram 4 shows the set of apparatus of an experiment.Rajah 4 menunjukkan susunan radas bagi satu eksperimen.

9


DIAGRAM 4 RAJAH 4Which of the following can be used to differentiate these solutions?Antara yang berikut, yang manakah boleh digunakan untuk membezakan larutan-larutan tersebut ?

A

B

C

D

Ammonia solutionLarutan ammonia

Barium nitrate solutionLarutan barium nitrat

Silver nitrate solutionLarutan argentum nitrat

Sodium hydroxide solutionLarutan natrium hidroksida

23 Diagram 5 represents the structural formula of a carbon compoundRajah 5 menunjukkan formula struktur satu sebatian karbon

DIAGRAM 5 RAJAH 5Name of the above carbon compound isNama sebatian karbon di atas ialah

A

B

C

D

Ethyl ethanoateEtil etanoat

Propil ethanoatePropil etanoat

Ethyl propanoateEtil propanoat

Diethyl methanoateDietil etanoat

24 Which of the following reactions shows that tin is a reducing agent?

10

H H O H H | | || | | H – C – C – C – O – C – C – H | | | | H H H H

Aluminium chloride solutionLarutan Aluminium klorida

Zinc chloride solutionLarutan zink klorida


Antara tindak balas kimia berikut, yang manakah menunjukkan stanum sebagai agen penurunan?

I

II

III

IV

A

B

C

D

Reaction of tin with silver oxideTindak balas stanum dengan argentum oksida

Reaction of tin with lead(II) nitrate solutionTindak balas stanum dengan larutan Plumbum(II) nitrat

Electrolysis of tin(II) nitrate solution using tin electrodesElektrolisis larutan stanum(II) nitrat dengan menggunakan elektrod stanum

Chemical cell with tin and zinc electrodes in sodium sulphate solution.Sel Kimia yang menggunakan elektrod stanum dan zink dalam larutan natrium sulfat.

I and II onlyI dan II sahaja

II and IV onlyII dan IV sahaja

I, II and III only I, II dan III sahaja

I, III and IV onlyI, III dan IV sahaja

25 The following chemical equation shows the reaction of the formation of lead (II) sulphate precipitate.Persamaan kimia berikut menunjukkan tindak balas pembentukan mendakan plumbum (II) sulfat.

Pb2+ (ak) + SO4 2- (ak) → PbSO4 (p) ∆ H = - 42 kJ mol -1

Which of the following is true about the reaction?Antara yang berikut, yang manakah benar tentang tindak balas itu?

Heat changePerubahan haba

Type of reactionJenis tindak balas

A Heat is releasedHaba dibebaskan

EndothermicEndotermik

B Heat is absorbedHaba diserap

ExothermicEksotermik

C Heat is releasedHaba dibebaskan

ExothermicEksotermik

D Heat is absorbedHaba diserap

EndothermicEndotermik

11


26 Which of the following molecules is soap?Antara molekul berikut, yang manakah merupakan sabun?

A

B

C

D

CH3(CH2)14COOH

CH3(CH2)2COONa

CH3(CH2)14COONa

CH3(CH2)14COOCH3

27 The diagram 6 shows the cooling curve for a sample of a pure substance XRajah 6 menunjukkan lengkuk penyejukan bagi satu contoh bahan X yang tulin.

DIAGRAM 6 RAJAH 6

Which of the following statements is true about the arrangement of particles at time t?Antara berikut, yang manakah pernyataan yang benar tentang susunan zarah-zarah pada masa t?

A

B

C

D

All the molecules move freelySemua zarah bergerak bebas

All the molecules only vibrate and rotate at their fixed positionSemua zarah hanya bergetar dan berputar pada kedudukan yang tetap

Some of the molecules move from one point to another and the others move randomlySebahagian zarah bergerak dari satu tempat ke tempat yang lain dan yang lainnya bergerak bebas

Some of the molecules vibrate and rotate at their fixed positions and the others move from one point to anotherSebahagian zarah bergetar dan berputar pada kedudukan yang tetap dan yang lainnya bergerak dari satu tempat ke tempat yang lain

28 Diagram 7 shows the molecular formulae of two compounds, X and Y

12

t

Temperature/oC

Time/s


Rajah 7 menunjukkan formula molekul bagi dua sebatian, X dan Y.

Compound X Compound Y Sebatian X Sebatian Y DIAGRAM 7 RAJAH 7

Which of the following statements are similar for compound X and Y?Antara pernyataan berikut, yang manakah sama bagi sebatian X dan Y?

A

B

C

D

The empirical formulaFormula empirik

Reaction with bromine waterBertindak balas dengan air bromine

Hydration to produce an alcoholPenghidratan menghasilkan suatu alkohol

Complete combustion in oxygen to produce water and carbon dioxide gasPembakaran sempurna dalam oksigen menghasilkan air dan gas karbon dioksida

29 Table 1 shows the proton number of elements W,X,Y and Z. The letters used are not the actual symbol of the elements.Jadual 1 menunjukkan nombor proton bagi unsur-unsur W,X,Y ,dan Z. Huruf yang digunakan bukan simbol sebenar unsur itu.

TABLE 1 JADUAL 1

Which of the following shows the ascending order of the atomic size of the elements?Antara ynag berikut yang manakah menunjukkan susunan menaik saiz atom bagi unsur-unsur itu?

ABCD

W,X,Y,Z Z,W,X,YY,X,W,ZZ,Y,X,W

30 Which of the following is true about covalent compound?

13

C2H6 C5H10

ElementUnsur

Proton numberNombor proton

WXYZ

11131719


Antara berikut, yang manakah benar tentang sebatian kovalen?

A

B

C

D

Conduct electricity in molten or aqueous state Mengalir elektrik dalam keadaan lebur atau akueus

Low melting point Takat lebur rendah

Soluble in waterLarut dalam air Not volatileTidak meruap

31 Diagram 8 shows a set up of chemical cell using a pair of zinc and copper as electrodes.Rajah 8 menunjukkan susunan radas sel kimia menggunakan pasangan elektrod zink dan kuprum.

DIAGRAM 8 RAJAH 8

The blue copper(II) sulphate solution turns pale.Warna biru larutan kuprum(II) sulfat luntur

Which of the following explains the observation? Antara pernyataan berikut yang manakah menerangkan pemerhatian itu?

A

B

C

D

Zinc atom ionizesAtom zink mengion

Copper atom ionizesAtom kuprum mengion

Sulphate ion is dischargedIon sulfat dinyahscas

Copper(II) ion is dischargedIon kuprum(II) dinyahcas

14

Copper(II) sulphate solutionLarutan kuprum(II) sulfat

ZincZinkCopper

kuprum


32

Which of the following explains the above statement?Antara berikut, yang manakah menerangkan pernyataan di atas?

A

B

C

D

Hydrochloric acid is a weak acid while ethanoic acid is a strong acidAsid hidroklorik ialah asid lemah sementara asid etanoik ialah asid kuat

Hydrochloric acid dissociates partially while ethanoic acid dissociates completely in water Asid hidroklorik bercerai separa sementara asid etanoik bercerai sempurna di dalam air

The number of hydrogen atom in hydrochloric acid is smaller than in ethanoic acidBilangan atom hidrogen di dalam asid hidroklorik lebih kecil berbanding di dalam asid etanoik

The concentration of hydrogen ion in hydrochloric acid is higher than in ethanoic acidKepekatan ion hidrogen di dalam asid hidroklorik adalah lebih tinggi berbanding di dalam asid etanoik

33 The following equation shows the preparation of salt R.Persamaan berikut menunjukkan penyediaan garam R

Solution P + Solution Q Solid R + Solution SLarutan P + Larutan Q Pepejal R + Larutan S

Which of the following set represents compound P,Q,R and S? Antara set berikut, yang manakah merupakan sebatian P,Q,R dan S?

P Q R SI Pb NaBr PbBr2 Na II Ca(NO)3 K2SO4 CaSO4 KNO3

III AgNO3 NaCl AgCl NaNO3

IV NH4OH HCl NH4Cl H2O

A I and II onlyI dan II sahaja

B I and IV only I dan IV sahaja

C II and III onlyII and III sahaja

D III and IV onlyIII and IV sahaja

15

The pH value of 0.1 mol dm-3 hydrochloric acid,HCl is smaller than the pH value of 0.1 mol dm-3 ethanoic acid, CH3COOH Nilai pH bagi 0.1 mol dm-3 asid hidroklorik, HCl adalah lebih kecil berbanding dengan nilai pH bagi 0.1 mol dm-3 asid etanoik, CH3COOH


34 The manufacturing of sulfuric acid involves several reactions. Pembuatan asid sulfurik melibatkan beberapa tindak balas.

Which of the following equations represents the sulfuric acid reaction that uses a catalyst?Antara persamaan berikut, yang manakah mewakili tindak balas asid sulfurik yang menggunakan mangkin?

A

B

C

D

S + O2 → SO2

2SO2 + O2 → 2SO3

SO3 + H2SO4 → H2S2O7

H2S2O7 + H2 O → 2H2SO4

35 Diagram 9 shows the graph of volume of oxygen gas against time . Curve P is obtained from an experiment of the decomposition of 25 cm3 of 0.1 mol dm-3 hydrogen peroxide solution. Rajah 9 menunjukkan graf isipadu gas oksigen melawan masa. Lengkung P diperolehi daripada tindak balas penguraian 25 cm3 larutan hidrogen peroksida 0.2 mol dm-3.

DIAGRAM 9 RAJAH 9Which of the following solutions will produce curve Q?Antara larutan berikut, yang manakah akan menghasilkan lengkung Q?

A

B

C

D

25 cm3 hydrogen peroxide 0.15 mol dm-3








16

P

Q

Time/s Masa/s

Volume of O2 gas/cm3

Isipadu gas O2 /cm3


36 The equation below shows the chemical equation of the combustion of ethanol in excess oxygenPersamaan di bawah menunjukkan persamaan kimia bagi pembakaran etanol dalam oksigen berlebihan

2C2H5OH + 7O2 4CO2 + 6H2O

What is the volume of carbon dioxide gas released when 9.20 g ethanol reacts completely?Berapakah isi padu gas karbon dioksida terbebas apabila 9.2 g etanol bertindak balas lengkap?

[Relative atomic mass of H = 1, C = 12, O = 16, 1 mol of gas occupies 24 dm3 at room condition][Jisim atom relatif H = 1, C = 12, O = 16, 1 mol of gas memenuhi 24 dm3 pada keadaan bilik]

ABCD

4.8 cm3

9.6 cm3

96.0 cm3

9600 cm3

37 Diagram 10 shows the set up of the apparatus to study the redox reaction . Rajah 10 menunjukkan susunan radas untuk mengkaji tindak balas redoks.

DIAGRAM 10RAJAH 10

Carbon X is a negative terminal.Karbon X merupakan terminal negatif.

Which of the following are solution X and solution Y? Antara berikut, yang manakah merupakan larutan X dan larutan Y?

Solution XLarutan X

Solution YLarutan Y

A Iron(II) sulphate Ferum(II) sulfat

Bromine water Air bromin

B Iron(III) sulphate Ferum(III) sulfat

Potassium bromide Kalium bomida

C Acidified potassium dicromate(VI) Kalium dikromat(VI) berasid

Potassium chloride Kalium klorida

D Acidified potassium manganat(VII)Kalium manganat(VII) berasid

Iron(II) sulphate Ferum(II) sulfat

17

Carbon Y Karbon Y

Porous pot Pasu telap

Solution XLarutan X

Carbon X Karbon X

Solution YLarutan Y


38 The reaction between 25.00 cm3 of hydrochloric acid and 25.00 cm3 of sodium hydroxide solution releases the heat of 2100 J. [Specific heat capacity of a solution = 4.2 J g-1 oC -1

Assume that 1 cm 3 of a solution is equal to 1 g of the solution ]Tindak balas antara 25.00 cm3 asid hidroklorik dan 25.00 cm3 larutan natrium hidroksida membebaskan haba sebanyak 2100 J.[Muatan haba tentu larutan = 4.2 J g-1 oC -1

Anggap 1 cm 3 larutan sama dengan 1 g larutan ]

What is the temperature change of the mixture ?Berapakah perubahan suhu campuran itu?

AB C D

1 OC 2 OC 10 OC20 OC

39 Which of the following is true about soap or detergent ?Antara yang berikut, yang manakah benar tentang sabun atau detergen ?

A

B

C

D

Soap forms scum in soft waterSabun membentuk kekat dalam air lembut

Detergent forms scum in hard waterDetergen membentuk kekat di dalam air liat

The presence of magnesium ions in detergent forms scum Kehadiran ion magnesium di dalam detergen membentuk kekat

Scum decreases the effectiveness of the cleansing action of a soapKekat mengurangkan keberkesanan tindakan pencucian sabun

40 Bromine-79 has 44 neutrons. Bromin-79 mempunyai 44 neutron

Which of the following symbols represent the bromine atom?Antara simbol berikut, yang manakah mewakili atom bromin?

A

B

C

D

18

79

35Br

44Br

35

7944 Br

79

35

Br


41

What is the empirical formula of metal oxide J?Apakah formula empirik bagi oksida logam J?

[Relative atomic mass of J = 24, O = 16 ][Jisim atom relatif: J = 24, O = 16 ]

ABCD

JOJO2

J2OJ2O2

42 In the Periodic Table, element X is in group 1 and element Y is in group 17 The letters used are not the actual symbol of the elements.Dalam Jadual Berkala Unsur, unsur X berada dalam kumpulan I dan unsur Y berada dalam kumpulan 17.Huruf yang digunakan bukan simbol sebenar unsur itu.

Which of the following chemical equation is true for the reaction between element X and element Y? Antara persamaan kimia berikut, yang manakah benar bagi tindak balas antara unsur X dan unsur Y?ABCD

2X + Y2 2 XY X + Y2 XY2

2X + Y X2YX + Y XY

43 The table 2 shows the electron arrangements of elements R, S, T dan U. Jadual 2 menunjukkan susunan elektron bagi unsur R, S, T dan U

Which of the following pair of elements can form ionic compound? Antara pasangan unsur berikut, yang manakah boleh membentuk sebatian ion? A

B

C

D

R and SR dan S

S and US dan U

T and UT dan U

R and T R dan T

19

2.0 g metal oxide J contains 1.2 g of element J2.0 g oksida logam J mengandungi 1.2 g logam J

ElementsUnsur R S T U

Electron arrangementSusunan elektron 2.4 2.8 2.8.7 2.8.8.2


44 The reaction between hydrochloric acid and calcium carbonate produces carbon dioxide gas. The reaction is complete in 50 seconds and the maximum volume of gas produced is 25 cm 3.

Tindakbalas antara asid hidroklorik dengan kalsium kabonat menghasilkan gas karbon dioksida. Tindak balas lengkap dalam masa 50 saat dan isipadu maksimum gas ialah 25 cm3.

What is the average rate of reaction?Berapakah kadar tindak balas purata?

ABCD

0.5 cm3 s-1

1.0 cm3 s-1

2.0 cm3 s-1

4.0 cm3 s-1

45 Diagram 11 shows the set-up of apparatus for the titration of sodium hydroxide solution with sulphuric acid.Rajah11 menunjukkan susunan radas bagi titratan larutan natrium hidroksida dengan asid sulfurik

DIAGRAM 11 RAJAH 11What is the volume of 0.5 mol dm-3 of sulphuric acid solution required to completely neutralize 25 cm3 of 0.5 mol dm-3 sodium hydroxide solution?Berapakah isi padu 0.5 mol dm-3 asid sulfurik diperlukan untuk meneutralkan lengkap 25 cm3 0.5 mol dm-3 larutan natrium hidroksida?

A

B

C

D

12.50 cm3

25.00 cm3

50.00 cm3

75.50 cm3

20

0.5 mol dm-3 of sulphuric acid solutionLarutan 0.5 mol dm-3 asid sulfurik

25 cm3 of 0.5 mol dm-3 sodium hydroxide + phenolphthalein25 cm3 0.5 mol dm-3 larutan natrium hidroksida + fenolftalein


46 The following chemical equation shows the reaction of preparation lead(II) iodide salt.Persamaan kimia berikut menunjukkan tindak balas penyediaan garam plumbum(II) iodida.

Pb (NO3)2 (aq) + 2KI(aq) PbI2 (s) + 2KNO3(aq) Pb (NO3)2 (ak) + 2KI(ak) PbI2 (p) + 2KNO3(ak)

What is the volume of potassium iodide 0.5 mol dm-3 solution needed to produce 4.61 g lead(II) iodide salt?Berapakah isipadu larutan kalium iodida 0.5 mol dm-3 yang diperlukan untuk menghasilkan 4.61g garam plumbum(II) iodida?

[Relative atomic mass of Pb= 207, I= 127][Jisim atom relatif P= 207, I= 127]

A

B

C

D

20 cm3

40 cm3

400 cm3

1440 cm3

47 Diagram 12 shows the stages I, II, III and IV in the Contact Process during the preparation of sulphuric acid.Rajah 12 menunjukkan peringkat I, II, III dan IV bagi penyediaan asid sulfurik melalui proses Sentuh.

S I SO2 II SO3 III H2S 2O7 IV H2SO4

Which of the following chemicals is used at each stage?Antara bahan kimia berikut, yang manakah digunakan pada peringkat itu?

I II III IVA O2 O2 H2O H2SO4

B O2 O2 H2SO4 H2OC O2 H2O O2 H2SO4

D H2O O2 H2SO4 O2

48 Diagram 13 shows the set up of the apparatus for an experiment to determine the rate of reaction

21


between sodium thiosulphate solution and sulphuric acid solution.Rajah 13 menunjukkan susunan radas bagi eksperimen untuk menentukan kadar tindak balas antara natrium tiosulfat dengan asid sulfurik.

DIAGRAM 13 RAJAH 13

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

A

B

C

D

Sulphuric acid solution Larutan asid Sulfurik

Sodium thiosulphate solutionLarutan natrium tiosulfat

Temperature/ 0CSuhu/0C

Volume/cm3

Isipadu/cm3

Concentration/mol dm-3

Kepekatan/ mol dm-3

Volume/cm3

Isipadu/cm3

Concentration/mol dm-3

Kepekatan/ mol dm-3

10

10

10

20

1.0

1.0

0.5

0.5

50

50

50

40

0.5

0.5

0.5

0.5

30

40

30

40

Sodium thiosulphate solution and sulphuric acidLarutan natrium tiosulfat dan asid sulfurik

22


49 Diagram 14 shows the structural formula of carbon compound JRajah 14 di bawah menunjukkan formula struktur sebatian karbon J

DIAGRAM 14 RAJAH 14

Which of the following statements are true?Antara pernyataan berikut, yang manakah benar?[Relative atomic mass of H = 1, C = 12 ][Jisim atom relatif H = 1, C = 12 ]

I

II

III

IV

A

B

C

D

Empirical formula of J is C4H8

Formula empirik J ialah C4H8

Name of the compound J is but-1-eneNama sebatian J ialah but-1-ena

Hydration of compoud J produce butan-1ol Penghidratan sebatian J menghasilkan butan-1-ol

Complete combustion of compound J produce carbon dioxide gas and waterPembakaran lengkap sebatian J menghasilkan gas karbon dioksida dan air

I and II onlyI dan II sahaja

III and IV onlyIII dan IV sahaja

I, II and III onlyI, II dan III sahaja

II, III and IV onlyII, III dan IV sahaja

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H H H H | | | | H – C – C – C = C – H | | H H


50 Metal W is between iron and copper in the reactivity series of metal.The letters used are not the actual symbol of the elements.Logam W berada di antara ferum dan kuprum dalam siri kereaktifan logam. Huruf yang digunakan bukan simbol sebenar unsur itu

Which of the following metal oxides can be reduced by metal W? Antara oksida logam berikut, yang manakah boleh diturunkan oleh logam W?

A

B

C

D

Zinc oxideZink oksida

Silver oxideArgentum oksida

Magnesium oxideMagnesium oksida

Aluminium oxideAluminium oksida

END OF QUESTION PAPERKERTAS SOALAN TAMAT

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gerak gempur chemistry paper 1

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