ppt 15
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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
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)