1
Name: CHEMISTRY PAPER 1PEPERIKSAAN PENGGAL 1 2014 TING 5Answer
all questions
Jawab semua soalan
1.The diagram shows a model of an atom.Gambar rajah menunjukkan
satu model atom.
Who introduced this model?Siapakah yang memperkenalkan model
ini?ANeils Bohr
BJohn Dalton
CJames Chadwick
DErnest Rutherford
2.Which of the following set ups of apparatus is correct to
determine the melting point of acetamide?Antara susunan radas
berikut, yang manakah betul untuk menentukan takat lebur
asetamida?
3.Which compound has the correct formula?Sebatian manakah yang
mempunyai formula yang betul?
4.The following chemical equation shows the complete combustion
of ethane gas.Persamaan kimia berikut menunjukkan pembakaran
lengkap bagi gas etana.
What is the volume of ethane needed to produce 2.2 g of carbon
dioxide at standard temperature and pressure?[Molar mass of CO2 =
44 g mol-1; Molar volume of gas at standard temperature and
pressure = 22.4 dm3mol-1]Berapakah isi padu etana yang diperlukan
untuk menghasilkan 2.2 g karbon dioksida pada suhu dan tekanan
piawai?[Jisim molarCO2 = 44 g mol-1;Isi padu molar gas pada suhu
dan tekanan piawai= 22.4 dm3mol-1]
A0.05 dm3B0.10 dm3C0.56 dm3D1.12 dm3
5.2 g of an oxide of metal Z has an empirical formula of
Z3O2forms 1.68 g metal Z when completely reduced. What is the
relative atomic mass of metal Z?2 glogam oksidaZmempunyai formula
empirikZ3O2membentuk1.68 glogamZapabila diturunkan dengan
lengkapnya. Apakah jisim atom relatif bagi logamZ?[Relative atomic
mass: O, 16][Jisim atom relatif: O, 16]
A14
C28
B56
D112
6.Which of the following elements are in Group 18 in the
Periodic Table of Elements?Antara berikut unsur yang manakah dalam
Kumpulan18dalam Jadual Berkala Unsur?AHelium and kryptonHelium dan
kriptonBHydrogen and oxygenHidrogen dan oksigenCOxygen and
kryptonOksigen dan kriptonDHelium, hydrogen and oxygenHelium,
hidrogen dan oksigen
7.Which of the following pairs of physical properties of sodium
chloride is true?Antara pasangan sifat fizik berikut yang manakah
benar tentang natrium klorida?
8.Which of the following is an electrolyte?Antara berikut yang
manakah elektrolit?AAcetamideAsetamidaBAluminiumAluminiumCEthyl
propanoateEtil propanoatDLead(II) bromidePlumbum(II)bromida
9.Which of the following is true about an alkali?Antara
pernyataan berikut yang manakah benar tentang alkali?AAn alkali is
not corrosiveAlkali tidak mengkakisBAn alkali is a base that is
soluble in waterAlkali ialah bes yang larut dalam airCA strong
alkali has a low pH valueAlkali kuat mempunyai nilaipHyang rendahDA
weak alkali has a high degree of ionizationAlkali lemah ialah
alkali yang mempunyai kadar pengionan yang tinggi
10.Gas X is passed into an acidic dichromate solution.The colour
of the solution changes from orange to green.GasXdialirkan ke dalam
larutan dikromat berasid.Warna larutan itu bertukar dari jingga ke
hijau.What is gas X?Apakah gasX?ASulphur dioxideSulfur
dioksidaBHydrogen chlorideHidrogen kloridaCNitrogen dioxideNitrogen
dioksidaDChlorineKlorin
11.Glacial ethanoic acid is put into four test tubesA, B,
CandD.In which test tube does a reaction occur?Asid etanoik glasial
diisi dalam empat tabung ujiA, B, CdanD.Dalam tabung uji manakah
tindak balas berlaku?
12.The diagram shows the energy profile of a reaction.Eais the
activation energy for this reaction.Gambar rajah menunjukkan profil
tenaga bagi suatu tindak balas.Eaadalah tenaga pengaktifan bagi
tindak balas ini.
What will change the activation energy form Eato Ea'?Apakah yang
akan mengubah tenaga pengaktifan daripadaEakepadaEa'?
ATemperatureSuhuBCatalystMangkinCConcentrationKepekatanDTotal
surface areaJumlah luas permukaan
13.Which of the following explains the meaning of effective
collision?Antara pernyataan berikut, yang manakah menjelaskan
maksud perlanggaran berkesan?AThe collision where its energy is
less than the activation energyPerlanggaran yang tenaganya kurang
daripada tenaga pengaktifanBThe collision that has a low
energyPerlanggaran yang berlaku mempunyai tenaga yang rendahCThe
collision which takes place before a reactionPerlanggaran yang
berlaku sebelum sesuatu tindak balasDThe collision that causes a
reactionPerlanggaran yang menghasilkan tindak balas
14.The structural formulae of two isomers are as follows.Formula
struktur dua isomer adalah seperti berikut.
Which of the following names can be used for both isomers?Antara
nama berikut yang manakah boleh digunakan untuk kedua-dua
isomer?ABromoethaneBromoetanaBBromopropaneBromopropanaCBromobutaneBromobutanaDBromopentaneBromopentana
15.The diagram shows the set up of the apparatus for a
reaction.Gambar rajah menunjukkan susunan radas bagi satu tindak
balas.
What is the reaction?Apakah tindak balas
itu?AEsterificationPengesteranBCrackingPeretakanCDehydrationPendehidratanDOxidationPengoksidaan
16.Which of the following is the structural formula of an
unsaturated hydrocarbon?Antara berikut yang manakah formula
struktur hidrokarbon tak tepu?
17.A liquid produced effervescence when reacted with sodium
carbonate solution.What is the molecular formula of the liquid?Satu
cecair menghasilkan pembuakan apabila bertindak balas dengan
larutan natrium karbonat.Apakah formula molekul bagi cecair
itu?AHCOOH
BCH3CH2OH
CCH3COOCH3DCH3COONa
18.The diagram shows the set up of the apparatus for the
reduction of metal X oxide by hydrogen gas.Gambar rajah menunjukkan
susunan radas bagi penurunan oksida logamXoleh gas hidrogen.
What is the metal X oxide?
Apakah oksida logam X itu?AZinc oxideZink oksidaBAluminium
oxideAluminium oksidaCMagnesium oxideMagnesium oksidaDLead
oxidePlumbum oksida
19.The diagram shows four pairs of metals in different test
tubes.Gambar rajah menunjukkan pasangan logam dalam tabung uji
berlainan.
After one day, in which test tube is the solution blue?Selepas
satu hari, larutan dalam tabung uji yang manakah berwarna
biru?ATest tube 1Tabung uji1
BTest tube 2Tabung uji2
CTest tube 3Tabung uji3
DTest tube 4Tabung uji4
20.The diagram shows an experiment to study the particle theory
of matter.Gambar rajah menunjukkan satu eksperimen untuk mengkaji
teori zarah jirim.
Which of the following is the best explanation of the
observation in the experiment?Antara berikut yang manakah
penerangan paling baik mengenai pemerhatian dalam eksperimen
itu?AAgar dissolves copper(II) suphateAgar-agar melarutkan
kuprum(II)sulfatBCopper(II) sulphate is an ionic
compoundKuprum(II)sulfat merupakan sebatian ionCParticles in
copper(II) sulphate are minute and discreteZarah dalam
kuprum(II)sulfat adalah halus dan diskritDThe attractive force
between agar and copper(II) sulphate particles is strongDaya
tarikan antara zarah agar-agar dengan zarah kuprum(II)sulfat adalah
kuat
21.The table shows information about two types of
particle.Jadual menunjukkan maklumat bagi dua jenis zarah.
Based on the information in the table, both particles X and Y
areBerdasarkan maklumat dalam jadual, zarahXdan zarahYadalahAinert
gases/gas adiBnegative ions/ion negatifCatom of metals/atom
logamDisotopes of the same elementisotop unsur yang sama
22.Which of the following diagrams represents the electron
arrangement of an element of Group 1 ?Antara gambar rajah berikut,
yang manakah mewakili susunan elektron bagi suatu unsur Kumpulan1
?
23.The diagram shows two balloons filled with oxygen gas and
hydrogen gas respectively.Gambar rajah menunjukkan dua belon yang
masing-masing diisikan dengan gas oksigen dan gas hidrogen.
Which of the following statements is true about the two
gases?Antara pernyataan berikut yang manakah benar tentang dua gas
itu?AThe number of moles of oxygen gas is greater than hydrogen
gasBilangan mol gas oksigen lebih besar daripada bilangan mol gas
hidrogenBThe number of moles of oxygen gas and hydrogen gas is
equal.Bilangan mol gas oksigen sama dengan bilangan mol gas
hidrogenCThe number of oxygen gas molecules is greater than
hydrogen gas moleculesBilangan molekul gas oksigen lebih besar
daripada bilangan molekul gas hidrogenDThe number of oxygen gas
molecules is fewer than hydrogen gas moleculesBilangan molekul gas
oksigen kurang daripada bilangan molekul gas hidrogen
24.The formula for a sulphate ion is SO
24
and for a
nitrate is NO
3
.
If the formula of the sulphate salt of M is MSO4, what is the
formula of the nitrate salt of M?
Formula bagi ion sulfat adalahSO
24
dan ionnitrat adalahNO3
.Jika formula garam sulfat bagiMialahMSO4,apakah formula garam
nitrat bagiM?
AMNO3CM2NO3BM(NO3)2DM(NO3)3
25.The diagram shows the electron arrangement in a molecule of
element Y.Gambar rajah menunjukkan susunan elektron bagi satu
molekul unsurY.
Where is element Y placed in the Periodic Table of Elements?Di
manakah kedudukan unsurYdalam Jadual Berkala Unsur?
26.The diagram shows the set up of the apparatus of a chemical
cell.Gambar rajah menunjukkan susunan radas satu sel kimia.
Which of the following happens in the chemical cell?Antara
berikut yang manakah berlaku dalam sel kimia itu?AThe iron rod
becomes thickerRod ferum menjadi lebih tebalBThe copper rod becomes
thinnerRod kuprum menjadi lebih nipisCThe intensity of the blue
colour of copper(II) sulphate solution decreasesKeamatan warna biru
larutan kuprum(II)sulfat berkurangDThe colour of the solution in
Beaker 1 changes from green to brownWarna larutan dalam
Bikar1bertukar daripada hijau ke perang
27.The diagram shows the set up of the apparatus for the
reaction between calcium carbonate and ethanoic acid in two
different solvents.Gambar rajah menunjukkan susunan radas bagi
tindak balas antara kalsium karbonat dengan asid etanoik dalam dua
pelarut yang berlainan.
Which of the following statements are true about the observation
in beakers X and Y?Antara pernyataan berikut yang manakah benar
tentang pemerhatian dalam bikarXdanYitu?I
Water ionizes ethanoic acid in beaker XAir mengionkan asid
etanoik dalam bikarX
II
Benzene ionizes ethanoic acid in beaker YBenzena mengionkan asid
etanoik dalam bikarY
III
Water reacts with calcium carbonates in beaker XAir bertindak
balas dengan kalsium karbonat dalam bikarX
IV
Ethanoic acid remains as molecule in beaker YAsid etanoik kekal
sebagai molekul-molekul dalam bikarY
AI and II onlyIdanIIsahajaBI and IV onlyIdanIVsahajaCII and III
onlyIIandIIIsahajaDIII and IV onlyIIIdanIVsahaja
28.The following is the equation that represents the reaction
between propene and chlorine.Berikut adalah persamaan yang mewakili
tindak balas antara propena dengan klorin.
Which of the following is the structural formula of Q?Antara
berikut yang manakah formula struktur bagiQ?
29.The diagram shows the process of producing compound Z.Gambar
rajah menunjukkan proses penghasilan sebatianZ.
Which of the following is the structural formula for compound
Z?Antara berikut yang manakah struktur bagi sebatianZ?
30.The diagram shows the mechanism of rust formation.Gambar
rajah menunjukkan mekanisme pembentukan karat.
Which of the following statements is true about this
mechanism?
Antara pernyataan berikut yang manakah benar mengenai mekanisme
ini?AAn iron atom releases two electrons to form an iron(II)
ionSatu atom ferum membebaskan dua elektron membentuk satu ion
ferum(II)
BAn iron(II) ion receives two electrons from an iron atomSatu
ion ferum(II)menerima dua elektron daripada satu atom ferumCAn
oxygen molecule receives two electrons to form a hydroxide ionSatu
molekul oksigen menerima dua elektron untuk membentuk satu ion
hidroksidaDFour hydroxide ions are formed when two water molecules
receive four electronsEmpat ion hidroksida terbentuk apabila dua
molekul air menerima empat elektron
31.When powder of metal P is heated with black metal Q oxide,
the following observations are made:Apabila serbuk logamPdipanaskan
dengan oksida logamQyang berwarna hitam, maklumat berikut
diperoleh:
Based on the information above, which statement is
true?Berdasarkan maklumat di atas, pernyataan yang manakah
benar?AThe powder of metal Q can displace P from its salt
solutionSerbuk logam Q boleh menyesarkan P daripada larutan
garamnyaBMetal Q oxide can react with a heated carbon powderOksida
logam Q boleh bertindak balas dengan serbuk karbon yang
dipanaskanCMetal P oxide can react with a heated iron powderOksida
logam P boleh bertindak balas dengan serbuk logam ferum yang
dipanaskanDThe powder of metal P can react with a heated magnesium
oxide powderSerbuk logam P boleh bertindak balas dengan serbuk
magnesium oksida yang dipanaskan
32.A redox reaction can be represented by the following
equation.Satu tindak balas redoks boleh diwakili oleh persamaan
berikut.
Element X is in Group 17 in the Periodic Table of Elements.What
can be observed if element X is replaced with iodine?UnsurXberada
dalam Kumpulan17dalam Jadual Berkala Unsur.Apakah yang dapat
diperhatikan jika unsurXdigantikan dengan iodin?ABrown gas is
producedGas perang terhasilBColourless solution is producedLarutan
jernih terhasilCNo change is observedTiada perubahan dapat
diperhatikanDBrown colour of the iodine is decolourizedWarna perang
larutan iodin dinyahwarnakan
33.A hydrocarbon compound is burnt completely in air to form
17.6 g of carbon dioxide gas and 7.2 g of water.What is the
molecular formula of the hydrocarbon compound?Satu sebatian
hidrokarbon dibakar dengan lengkap di udara menghasilkan17.6g gas
karbon dioksida dan7.2g air. Apakah formula molekul sebatian
hidrokarbon itu?
Given that the relative atomic mass of C = 12, H = 1, O =
16.Diberi jisim atom relatifC = 12, H = 1, O = 16.
AC2H6CC3H8BC4H8DC4H10
34.An atom of element X has 4 shells containing electrons.When
element X reacts with chlorine, a compound with formula XCl is
formed.
Which of the following is element X?AtomXmempunyai4petala
mengandungi elektron.Apabila unsurXbertindak balas dengan gas
klorin, sebatian berformulaXClterbentuk.Antara berikut yang manakah
unsurX?
Given that the atomic number of Na = 11, Si = 14, K = 19, Ca =
20.Diberi nombor atomNa = 11, Si = 14, K = 19, Ca = 20.
ACalciumKalsiumBPotassiumKaliumCSodiumNatriumDSiliconeSilikon
35.The picture shows a waste disposal site.The activity of
microorganisms in the waste produces methane gas.Gambar rajah
menunjukkan suatu kawasan pelupusan sampah.Aktiviti mikroorganisma
di kawasan itu menghasilkan gas metana.
What is the mass of methane gas produced?Berapakah jisim gas
metana yang terhasil?
Given that the relative atomic mass of H = 1, C = 12 and 1 mol
of gas occupies 24 dm3at room temperature and pressure.Diberi jisim
atom relatifH = 1, C = 12dan1 mol gas menempati24 dm3pada suhu dan
tekanan bilik.A12 g
B16 g
C21 g
D27 g
36.5 g of element X reacted with 8 g of element Y to form a
compound with the formula XY2.What is the relative atomic mass of
element X?5 gunsurXbertindak balas dengan8 gunsurYuntuk membentuk
satu sebatian yang mempunyai formulaXY2.Berapakah jisim atom
relatif unsurX?
Given that the relative atomic mass of Y = 80.Diberi jisim atom
relatifY = 80.
A25
B40
C50
D100
37.The table shows the number of electrons and neutrons for ions
G2-, H+, L-and M2+.These letters are not actual symbols for the
elements.Jadual menunjukkan bilangan elektron dan bilangan neutron
bagi ionG2-, H+, L-danM2+.Huruf-huruf ini bukanlah simbol sebenar
bagi unsur itu.
Which of the following shows the correct nucleon number of the
ion?Antara berikut yang manakah menunjukkan nombor nukleon yang
betul bagi ion?
IonNucleon NumberNombor Nukleon
AG2-21
BH+21
CL-
35
DM2+36
38.The diagram shows the set up of the apparatus of a simple
chemical cell. The reading on the voltmeter is 0.3 V.Gambar rajah
menunjukkan susunan radas bagi satu sel kimia ringkas. Bacaan
voltmeter ialah0.3 V.
Which of the following will increase the reading on the
voltmeter?Antara kaedah berikut yang manakah dapat menambahkan
bacaan voltmeter?I
Increase the volume of iron(II) sulphate solutionTambahkan
isipadu larutan ferum(II)sulfatII
Substitute the iron plate with a silver plateGantikan kepingan
ferum dengan kepingan argentumIII
Use a more dilute iron(II) sulphate solutionGunakan larutan
ferum(II)sulfat yang lebih cairIV
Subtitute the zinc plate with a magnesium plateGantikan kepingan
zink dengan kepingan magnesiumAI and II onlyIdanIIsahajaBI and III
onlyIdanIIIsahajaCII and IV onlyIIdanIVsahajaDII, III and IV
onlyII, IIIdanIVsahaja
39.The diagram shows four simple chemical cells.In each cell,
iron is one of the electrodes.Gambar rajah menunjukkan empat buah
sel kimia ringkas.Dalam setiap sel itu, satu daripada elektrodnya
adalah ferum.
In which cell does iron act as the negative terminal?Dalam sel
yang manakah ferum bertindak sebagai terminal negatif?ACell
ISelI
BCell IISelII
CCell IIISelIII
DCel IVSelIV
40.0.12 g of magnesium reacts with excess hydrochloric acid to
produce hydrogen gas.Given that the relatives molecular mass of H =
1, Mg = 24, C1 = 35.5 and 1 mol of gas occupies 24 dm3at room
temperature and pressure.0.12 gmagnesium bertindak balas dengan
asid hidroklorik berlebihan menghasilkan gas hidrogen.Diberi jisim
atom relatifH = 1, Mg = 24, Cl = 35.5dan1mol gas menempati24
dm3pada suhu dan tekanan bilik.
Which of the following is true about the reaction?Antara berikut
yang manakah benar bagi tindak balas itu?
I
Mg + 2H+Mg2++ H2II
Volume of gas released is 120 cm3Isi padu gas terbebas ialah120
cm3III
Mass of the salt formed is 0.30 gJisim garam terbentuk ialah0.30
g
IV
This is redox reactionTindak balas ini adalah tindak balas
redoksAI and II onlyIdanIIsahajaBI and III onlyIdanIIIsahaja
CI, II and IV onlyI, IIdanIVsahajaDII, III and IV onlyII,
IIIdanIVsahaja
41.The following equation represents the neutralization reaction
between an acid, H2X, and potassium hydroxide, KOH.Persamaan di
bawah mewakili tindak balas peneutralan antara asid, H2Xdan kalium
hidroksida, KOH.
H2X + 2KOH K2X + 2H2O
What is the volume of 1 mol dm-3potassium hydroxide, KOH, which
is needed to neutralize 25.0 cm3of 0.5 mol dm-3acid H2X?
Berapakah isi padu1 mol dm-3kalium hidroksida, KOH,yang
diperlukan untuk meneutralkan25.0 cm3, 0.5 mol dm-3asidH2X?
A50.00 cm3B25.00 cm3C12.50 cm3D6.25 cm3
42.The table belowshows the volume of hydrogen gas, H2,
collected in the reaction between zinc and sulphuric acid.Jadualdi
bawahmenunjukkan isi padu gas hidrogen, H2yang dikumpul dalam
tindak balas antara zink dan asid sulfurik.Time/minMasa/minitVolume
of hydrogen gas/cm3Isi padu gas hidrogen/cm3 0
0
0.5
7.90
1.0
14.40
1.5
20.40
2.0
23.90
2.5
26.40
3.0
26.40
3.5
26.40
TABLE /JADUAL
What is the average rate of reaction?
Apakah purata kadar tindak balas?A13.2 cm3min-1B10.56
cm3min-1C7.56 cm3min-1D7.40 cm3min-1
43.The decomposition of 25 cm3of 0.1 mol dm3hydrogen peroxide
solution at room temperature produces graph I as shown in Diagram
below.Penguraian25 cm3larutan hidrogen peroksida0.1 mol d m3pada
suhu bilik menghasilkan grafIseperti dalam gambar Rajah di
bawah.
Diagram /Rajah
Which of the following will produce graph II?
Antara yang berikut, manakah yang akan menghasilkan grafII?
A25 cm3of 0.01 mol dm3hydrogen peroxide solution at room
temperature25 cm3hidrogen peroksida0.01 mol dm3pada suhu bilikB20
cm3of 0.5 mol dm3hydrogen peroxide solution at room temperature20
cm3hidrogen peroksida0.5 mol dm3pada suhu bilikC25 cm3of 0.1 mol dm
hydrogen peroxide solution with manganese(IV) oxide25 cm3hidrogen
peroksida0.01 mol dm3dengan mangan(IV)oksidaD25 cm3of 1 mol
dm3hydrogen peroxide solution at 60C25 cm3hidrogen peroksida1 mol
dm3padasuhu60C
44.In an experiment, the decomposition of 25 cm3of 0.1 mol
dm-3hydrogen peroxide solution produces oxygen gas.The graph of the
volume of oxygen gas against time is drawn and curve P is
obtained.Dalam satu eksperimen, penguraian25 cm3larutanhidrogen
peroksida0.1 mol dm-3menghasilkan gas oksigen.Graf isipadu gas
oksigen melawan masa dilukis dan lengkungPdiperoleh.
If the experiment is repeated using another solution, which
solution will produce curve Q?Sekiranya ekperimen diulang dengan
menggunakan larutan lain, larutan manakah yang akan menghasilkan
lengkungQ?
A25 cm3of 0.15 mol dm-3hydrogen peroxide25 cm3hidrogen
peroksida0.15 mol dm-3B20 cm3of 0.15 mol dm-3hydrogen peroxide20
cm3hidrogen peroksida0.15 mol dm-3C15 cm3of 0.15 mol dm-3hydrogen
peroxide15 cm3hidrogen peroksida0.15 mol dm-3D10 cm3of 0.25 mol
dm-3hydrogen peroxide10 cm3hidrogen peroksida0.25 mol dm-3
45.Diagrambelow shows the structural formula of an organic
compound.Rajahdi bawahmenunjukkan formula struktur satu sebatian
organik.
Diagram /Rajah
Based on the IUPAC nomenclature, the compound is called
Berdasarkan IUPAC, sebatian ini disebut
sebagaiA2,3,3-trimethylpent-2 ene.2,3,3-trimetilpent-2 ena.
B2,3,3-trimethylpent-3 ene.2,3,3-trimetilpent-3 ena.
C3-ethyl-2-methylpent-1 ene. 3-etil-2-metilpent-1
ena.D3-ethyl-2-methyl pent-2 ene.3-etil-2-metilpent-2 ena.
46.Diagrambelow shows a set-up of apparatus is used to separate
a mixture through distillation.Rajahdi bawahmenunjukkan susunan
radas yang digunakan untuk memisahkan satu campuran melalui
penyulingan.
Diagram /Rajah
What is the mistake in this set-up?Apakah kesilapan dalam
susunan radas ini?
AThe bottom end of the thermometer should be touching the
water.Hujung bawah termometer perlu menyentuh air.BThe bottom end
of the thermometer should be below the surface of the water.Hujung
bawah termometer perlu di bawah permukaan air.CWater should enter
at Q and flow out at P.Air perlu masuk padaQdan keluar padaP.
DThe Liebig condenser should be horizontal.Kondenser Liebig
perlu mendatar.
47.A rubber latex buyer is worried that the latex he bought will
coagulate before they are sent to the factory. Which is the most
suitable way to overcome his problem?Seorang pembeli susu getah
bimbang susu getah yang dibelinya membeku sebelum dihantar ke
kilang. Antara langkah-langkah berikut, yang manakah paling sesuai
dilakukan untuk mengatasi masalah pembeli susu getah
tersebut?ABring the rubber latex to the factory using a fast
carMembawa susu getah ke kilang dengan kenderaan yang lajuBClose
the container of the rubber latex with an airtight coverMenutup
bekas susu getah dengan penutup yang kedap udaraCAdd ethanoic acid
into the rubber latexMenambah asid asid etanoik ke dalam susu
getahDAdd ammonia solution to the rubber latexMenambah larutan
ammonia ke dalam susu getah
48.Which of the following reactions is not a redox
reaction?Antara yang berikut, tindak balas manakah yang bukan suatu
tindak balas redoks?A4Li + O2 2Li2O
BBr2+ 2I- 2Br-+ I2CPb2++ 2Br- PbBr2DMg + 2H+ Mg2++ H2
49.Diagrambelow shows the apparatus set-up used to investigate
the reaction of acidified potassium manganate(VII) with iron(II)
sulphate solution.Rajahdi bawahmenunjukkan susunan radas untuk
mengkaji tindak balas antara kalium manganat(VII)berasid dengan
larutan ferum(II)sulfat.
DiagramRajah
Which of the following is the colour change of the two
solutions?Antara yang berikut, yang manakah perubahan warna bagi
kedua-dua larutan itu?
50.The position of metal X is located below magnesium in the
reactivity series of metals. Which of the following statement is
nottrue?Kedudukan logamXberada di bawah magnesium dalam siri
kereaktifan logam. Antara berikut, penyataan manakah
yangtidakbenar?AMagnesium has a higher tendency to ionise compared
to metal X.Magnesium lebih cenderung mengion berbanding logam
X.
BMagnesium can displace metal X from salt solution X.Magnesium
boleh menyesarkan logamXdaripada larutan garamX.
CMagnesium is a stronger oxidising agent than metal X.Magnesium
adalah agen pengoksidaan yang lebih kuat daripada logamX.
DMagnesium reacts more vigorously with oxygen than the reaction
between metal X with oxygen.Magnesium bertindak balas lebih cergas
dengan oksigen berbanding tindak balas logamXterhadap oksigen.
End of Question PaperDisediakan oleh, Disahkan oleh,
.. ........
(SSY) (EN SIM SIONG HEE)
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