NO. K PENGENLN - - NGK GILIRN SOLN PRKTIS ESTRI PROJEK JW UNTUK JY (JUJ) 2017 SIJIL PELJRN MLYSI 4541/1 HEMISTRY SET 1 Paper 1 4541/1 1 ¼ jam Satu jam lima belas minit JNGN UK KERTS SOLN INI SEHINGG IERITHU 1. Kertas soalan ini adalah dalam dwibahasa 2. Soalan dalam ahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu. 3. alon dikehendaki membaca maklumat di halaman depan kertas soalan ini. Kertas soalan ini mengandungi 20 halaman bercetak 4541/1 SET1 JUJ KIMI 2017 1
INFORMTION FOR NITES 1. This question paper consists of 50 questions. 2. nswer all questions. 3. nswer each question by blackening the correct space on the answer sheet. 4. lacken only one space for each question. 5. If you wish to change your answer, erase the blackened mark that you have made. Then blacken the space for the new answer. 6. The diagrams in the questions provided are not drawn to scale unless stated. 7. You may use a non-programmable scientific calculator. MKLUMT UNTUK LON 1. Kertas soalan ini mengandungi 50 soalan. 2. Jawab semua soalan. 3. Jawab dengan menghitamkan ruangan yang betul pada kertas jawapan. 4. Hitamkan satu ruangan sahaja bagi setiap soalan. 5. Sekiranya anda hendak menukar jawapan, padamkan tanda yang telah dibuat. Kemudian hitamkan jawapan yang baru. 6. Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan. 7. nda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram. 4541/1 SET1 JUJ KIMI 2017 2
1 Which of the following statements give the correct meaning of chemistry? Pernyataan yang manakah memberi maksud kimia dengan betul? hemistry is the study of matter. Kimia ialah kajian tentang jirim. hemistry is an art of transforming metals. Kimia ialah seni penukaran logam. hemistry is a systematic study of natural phenomena. Kimia ialah kajian sistematik tentang fenomena semulajadi. hemistry is the study gained through scientific investigations. Kimia ialah kajian yang diperolehi melalui penyiasatan saintifik. 2 What is the contribution of Ernest Rutherford in the development of atomic models history? pakah sumbangan Ernest Rutherford dalam sejarah perkembangan model atom? iscovered electron Menemui elektron iscovered proton Menemui proton Proved the existence of neutrons. Membuktikan kewujudan neutron. Proposed that the electron move in shells around nucleus. Mencadangkan elektron bergerak dalam petala mengelilingi nukleus. 3 group of rcheologist has found an artifact. Which isotopes will help them to determine the age of the artifact? Sekumpulan ahli arkeologi telah menemui satu artifak. Isotop yang manakah akan membantu mereka untuk menentukan umur artifak tersebut? Sodium 24 Natrium 24 arbon 14 Karbon 14 obalt 60 Kobalt 60 Phosphorus 32 Fosforus - 32 4541/1 SET1 JUJ KIMI 2017 3
4 Which of the following explains the decrease in the atomic size of the element across period 3? ntara berikut yang manakah menerangkan tentang pengurangan saiz atom merentasi kala 3? The number of valence electrons increase across period 3 ilangan elektron valens meningkat merentasi kala 3 The number of proton increase across period 3 ilangan proton meningkat merentasi kala 3 The number of shell filled with electrons increase across period 3 ilangan petala berisi elektron meningkat merentasi kala 3 The relative atomic mass increase across period 3 Jisim atom relatif meningkat merentasi kala 3 5 Which of the following exist as monoatomic gas? ntara berikut, yang manakah wujud dalam bentuk gas monoatom? hlorine Klorin Hydrogen Hidrogen Helium Helium Oxygen Oksigen 6 tom take part in the formation of chemical bond to.. tom mengambil bahagian dalam pembentukan ikatan kimia untuk.. Increase their energy Meningkatkan tenaga Neutralize their charge Meneutralkan cas Increase the density of their charges Meningkatkan ketumpatan cas chieve a stable electron arrangement Mencapai susunan elektron stabil. 4541/1 SET1 JUJ KIMI 2017 4
7 iagram below shows the setup of the apparatus for electrolysis Rajah di bawah menunjukkan susunan radas bagi elektrolisis Which of the following compound can be used as an electrolyte? Manakah antara sebatian berikut boleh digunakan sebagai elektrolit? mmonia solution Larutan ammonia Glucose solution Larutan glukosa Naphthalene Naftalena Ethanol Etanol 8 Which of the following substances is an electrolyte? ntara yang berikut bahan manakah merupakan elektrolit? Glucose Glukosa Ethanol Etanol cetamide setamida Sodium chloride solution Larutan natrium klorida 9 Which of the following is the correct definition of acid? ntara yang berikut, yang manakah definisi tepat bagi asid? n acid is a covalent compound. sid ialah sebatian kovalen. n acid is an ionic compound sid ialah sebatian ionik. n acid is a compound that ionises in water to to produce hydrogen ions sid ialah sebation yang mengion dalam air untuk menghasilkan ion hidrogen. n acid is a compound that ionises in water to produce hydroxide ions sid ialah sebatian yang mengion dalam air untuk menghasilkan ion hidroksida. 4541/1 SET1 JUJ KIMI 2017 5
10 Which of the following statements is correct about solubility of salt? ntara pernyataan yang berikut, yang manakah benar tentang garam terlarutkan? ll nitrate salts disolved in water Semua garam nitrat larut dalam air. ll chloride salts disolved in water Semua garam klorida larut dalam air. ll sulphate salts does not disolved in water Semua garam sulfat tidak larut dalam air. ll carbonate salts does not disolved in water Semua garam karbonat tidak larut dalam air. 11 When Lead(II) nitrate salt is heated, a brown gas is produced. Which of the following is this gas? pabila garam Plumbum(II) nitrat dipanaskan, gas perang terhasil. ntara berikut, yang manakah merupakan gas ini? Sulphur dioxide. Sulfur dioksida. arbon dioxide. Karbon dioksida. mmonia. mmonia. Nitrogen dioxide. Nitrogen dioksida. 12 Which of the following processes is industrially used in the production of ammonia? ntara yang berikut, proses yang manakah digunakan secara industry dalam penghasilan ammonia? Haber process Proses Haber ontact process Proses Sentuh Oxidation Pengoksidaan Hydrogenation Penghidrogenan 4541/1 SET1 JUJ KIMI 2017 6
13 Which of the following substances is used in the production of the bodies of aircraft? ntara yang berikut,, bahan yang manakah digunakan dalam pembuatan badan kapal terbang? Stainless steel Keluli nirkarat Pewter Piuter uralumin uralumin ronze Gangsa 14 Which of the following is a fast reaction? ntara yang berikut, yang manakah merupakan tindak balas yang pantas. Precipitation reaction Tindak balas pemendakan Photosynthesis Fotosintesis Fermentation Penapaian Rusting Pengaratan 15 How does a catalyst increase the rate of reaction? agaimanakah mangkin meningkatkan kadar tindak balas? Increases the number of effective collisions Meningkatkan bilangan perlanggaran berkesan Increases the activation energy of the reaction Meningkatkan tenaga pengaktifan tindak balas Increases the total number of reactant particles Meningkatkan jumlah bilangan zarah-zarah bahan tindak balas Increases the kinetic energy of reactant particles Meningkatkan tenaga kinetik zarah-zarah bahan tindak balas 16 Which of the following is an example of inorganic substance? Manakah antara berikut ialah satu contoh bahan tak organik? 2 H 5 OH 3 H 6 H 2 O 3 5 H 12 4541/1 SET1 JUJ KIMI 2017 7
17 Which of the following involves a redox reaction? Manakah antara berikut terlibat dalam tindak balas redox? Neutralization Penutralan Fermentation Penapaian Esterification Pengesteran iplacement Penyesaran 18 Which of the following processes does not release heat energy to the surroundings? ntara proses berikut, yang manakah tidak membebaskan tenaga ke persekitaran? Sublimation Pemejalwapan Neutralization Peneutralan ombustion Pembakaran Haber Process Proses Haber 19 casia gum can be used to Gam akasia digunakan untuk Replace sugar in the food menggantikan gula dalam makanan preserve orange juice mengawet jus oren Mix two different liquids mencampur dua cecair yang berlainan Enhance the color of the food meningkatkan warna makanan 20 Which of the following is not true about detergent? ntara berikut yang manakah tidak benar tentang detergen? It can reduce the surface tension of water Ia boleh mengurangkan tegangan permukaan bagi air. It can be used for washing garments. Ia boleh digunakan untuk membasuh baju. It is not effective in hard water. Ia tidak berkesan dalam air liat. It has hydrophobic head and hydrophilic tail. Ia mempunyai kepala suka air dan ekor benci air. 4541/1 SET1 JUJ KIMI 2017 8
21 iagram below shows the arrangement of particle of substance X Rajah dibawah menunjukkan susunan zarah bagi sebatian X. What is the state of matter of substance X? pakah keadaan jirim bagi sebatian X? Gas Gas Solid Pepejal Liquid ecair Liquid-gas ecair-gas 22 Which of the following is the correct empirical formula for H 3 OOH? ntara berikut, yang manakah formula empirik bagi sebatian H 3 OOH? HOOH H 2 O H 3 O HO 2 23 The proton number of atom R is 14 and its relative atomic mass is 28. Which statement is correct about R? Nombor proton bagi atom R ialah 14 dan jisim atom relatifnya ialah 28. Pernyataan manakah yang betul tentang R? The mass of 1 atom of R is 28g. Jisim bagi 1 atom R ialah 28g. The molar mass of R is 28g/mol Jisim molar bagi R ialah 28g/mol 14 g of R contains 6.03 x 10 23 atoms 14 g R mengandungi 6.03 x 10 23 atoms tom R has 14 protons, 14 electrons and 28 neutrons. tom R mempunyai 14 proton, 14 electron dan 28 neutron. 4541/1 SET1 JUJ KIMI 2017 9
24 The information of an element X is as follows: Maklumat berikut adalah berkaitan dengan unsur X dibawah: ble to form complex ion oleh membentuk ion kompleks an be used as catalyst oleh digunakan sebagai mangkin Has a variable oxidation number Mempunyai pelbagai nombor pengoksidaan Which of the following is element X based on the information? erdasarkan maklumat di atas,yang manakah dijangkakan unsur X? rgon rgon Nickel Nikel hlorine Klorin Potassium Kalium 25 Table below shows the proton number of four atoms. Jadual dibawah menunjukkan nombor proton bagi empat jenis atom. tom tom Electron arrangement Susunan elektron P Q R S 2.8.7 2.6 2.8.1 2.4 Which of the following will form an ionic compound? ntara berikut yang manakah akan membentuk sebatian ion? P and/dan Q P and/dan S Q and/dan R Q and/dan S 4541/1 SET1 JUJ KIMI 2017 10
26 iagram below shows the structure of Q ion. Rajah dibawah menunjukkan struktur bagi ion Q. + What is the number of valence electrons of a Q atom? erapakah bilangan elektron valens bagi satu atom Q? 1 8 9 2 27 Electrolysis of molten sodium chloride is conducted using carbon electrode. Name the product formed at anode. Elekrolisis leburan natrium klorida dijalankan dengan menggunakan elekrod karbon. Namakan hasil yang terbentuk di anod. Sodium Natrium hlorine Klorin Hydrogen Hidrogen Oxygen Oksigen 4541/1 SET1 JUJ KIMI 2017 11
28 farmer found that his soil is too acidic for some plants to grow well. Which substance is suitable to reduce the acidity of the soil? Seorang petani mendapati tanahnya terlalu berasid untuk tanamannya tumbuh dengan baik. ahan manakah yang sesuai untuk mengurangkan keasidan tanah itu? arium chloride arium klorida alsium oxide Kalsium oksida Sodium nitrite Natrium nitrit Potassium iodide Kalium iodida 29 The reaction between lead(ii) nitrate, Pb(NO 3 ) 2 and sodium chloride, Nal produces lead(ii) chloride, Pbl 2 and sodium nitrate, NaNO 3. Which ionic equation represents the reaction? Tindak balas antara plumbum(ii) nitrat, Pb(NO 3 ) 2 dan natrium klorida, Nal menghasilkan plumbum(ii) klorida, Pbl 2 dan natrium nitrat, NaNO 3. Persamaan kimia yang manakah mewakili tindak balas ini? Pb(NO 3 ) 2 + Nal Pbl + NaNO 3 Pb(NO 3 ) 2 + Nal Pbl 2 + NaNO 3 Pb(NO 3 ) 2 + Nal 2 Pbl 2 + 2NaNO 3 Pb(NO 3 ) 2 + 2Nal Pbl 2 + 2NaNO 3 30 The following statements are related to the collision theory of a collision. Pernyataan berikut adalah berkaitan dengan teori perlanggaran bagi satu tindak balas I The total surface area of the reactant particles increases Jumlah luas permukaan zarah bahan tindak balas bertambah II The kinetic energy of the reactant particles increases Tenaga kinetik zarah bahan tindak balas bertambah III The frequency of the collision between the reactant particles increases Frekuensi perlanggaran antara zarah bahan tindak balas bertambah IV The number of the reactant particles per one unit of volume increases ilangan zarah bahan tindak balas dalam satu unit isipadu bertambah Which of the following combination is true about the effect of the rise in temperature on the reactant particles. ntara kombinasi berikut, yang manakah benar tentang kesan peningkatan suhu ke atas Zarah bahan tindak balas? I and II only I dan II sahaja II and III only II dan III sahaja III and IV only III dan IV sahaja I and IV only I dan IV sahaja 4541/1 SET1 JUJ KIMI 2017 12
31 Which of the following alcohol has the highest boiling point. ntara berikut, alkohol manakah yang mempunyai takat didih yang tinggi. utanol utanol Pentanol Pentanol Heksanol Hexanol Heptanol Heptanol 32 The following equation shows part of the reaction involved in the preparation of detergent. Persamaan berikut menunjukkan sebahagian tindak balas yang berlaku dalam penyediaan detergen. O H 3 (H 2 ) n H 2 O S O H O O + NaOH H 3 (H 2 ) n H 2 O S O Na + + H 2 O O What is the name of the reaction? pakah nama tindak balas itu? lkylation Pengalkilan Sulphonation Pengsulfonan Saponification Saponifikasi Neutralisation Peneutralan 33 Which of the following can be used to change the green color of ion iron(ii) to brown color of iron(iii). ntara berikut yang manakah yang digunakan untuk menukar warna hijau ion ferum(ii) sulfat kepada warna perang ion ferum(iii) Lead Plumbum cidified potassium manganate(vii) kalium manganate(vii) berasid Magnesium sulfate solution Larutan Magnesium sulfat. Sulphuric acid sid sulfurik. 4541/1 SET1 JUJ KIMI 2017 13
34 The following thermochemistry equation shows the reaction between potassium hydroxide solution and nitric acid. Persamaan termokimia berikut menunjukkan tindak balas antara larutan kalium hidroksida dan asid nitrik KOH(aq) + HNO 3 (aq) KNO 3 (aq) + H 2 O(l) H = - 57kJ mol -1 Which of the following statements is true? ntara pernyataan berikut, yang manakah benar? The reaction is endothermic Tindak balas ini adalah endotermik The heat is absorbed from the surroundings Haba diserap dari persekitaran The temperature of the solution mixtures rises Suhu larutan campuran meningkat 57 kj of heat energy is absorbed to form 1 mole of water 57 kj tenaga haba diserap untuk membentuk 1 mol air 35 Which of the following types of medicine can be used to treat tuberculosis? ntara jenis ubat berikut, yang manakah boleh digunakan untuk merawat tuberculosis? nalgesic nalgesik ntibiotic ntibiotik Hormone Hormon Psychotherapeutic psikoterapeutik 36 What is the number of neutrons in the isotopes of bromine 35 r? erapakah bilangan neutron dalam isotop romin 35 r? 35 46 81 116 81 81 4541/1 SET1 JUJ KIMI 2017 14
37 The following equation shows the decomposition of hydrogen peroxide, H 2 O 2. Persamaan menunjukkan proses penguraian hidrogen peroksida H 2 O 2. 2H 2 O 2 2H 2 O + O 2 What is the volume of hydrogen gas, O 2 produced from the decomposition of 1 mol of hydrogen peroxide at standard temperature and pressure (STP)? [Molar volume of gas at STP = 22.4 dm 3 /mol] erapakah isipadu gas oksigen O 2 terhasil daripada penguraian 1 mol hidrogen peroksida pada suhu dan tekanan piawai (STP)? [isipadu molar gas pada STP = 22.4 dm 3 /mol] 11.2 dm 3 33.6 dm 3 22.4 dm 3 44.8 dm 3 38 n oxide of element X has the empirical formula X 2 O 3. 2.24 g of element X reacts completely with 0.96 g of oxygen. What is the relative atomic mass of X? [relative atomic mass O,16 ] Suatu oksida bagi unsur X mempunyai formula empirik X 2 O 3. 2.24 g unsur X bertindakbalas lengkap dengan 0.96 g oksigen. erapakah jisim atom relatif bagi X? [Jisim atom relatif:o,16] 112 25 56 17 39 iagram below shows the electrons arrangements of atoms X and Y. X and Y are not the actual symbols of the elements. Rajah dibawah menunjukkan susunan elektron bagi atom X dan atom Y. X dan Y bukan merupakan simbol sebenar bagi unsur tersebut. X Y tom X and atom Y react to form a compound.what is the molecular formula for that compound? tom X dan atom Y bertindakbalas membentuk satu sebatian. pakah formula molekul bagi sebatian yang terbentuk? XY 4 X 4 Y X 2 Y XY 2 4541/1 SET1 JUJ KIMI 2017 15
40 iagram below shows the set up of the chemical cell. Rajah di bawah menunjukkan susunan radas bagi sebuah sel kimia Magnesium ribbon / pita magnesium opper/ kuprum Lime/Limau nipis Why is the galvanometer needle deflected? Mengapakah jarum galvanometer terpesong? Magnesium reacts with lemon juice Magnesium bertindakbalas dengan jus limau Magnesium as the positive terminal Magnesium bertindak sebagai terminal positif Hydrogen gas is produced at cathode Gas hidrogen terbebas di katod Nitrogen dioxide is produced at anode Nitrogen dioksida terhasil di anod 41 Excess zinc powder is added to 25 cm 3, 0.1 mol dm -3 of copper(ii) sulphate solution. alculate the mass of copper formed. Serbuk zink yang berlebihan ditambahkan ke dalam 25 cm 3 larutan kuprum(ii) sulfat 0.1 mol dm -3. Hitung jisim kuprum yang dihasilkan. 0.16 g 160 g 6.4 g 64 g 42 student is stung by an insect with an alkaline sting. Which of the following substances is the most suitable to be applied to the part stung to treat the student? Seorang murid disengat oleh serangga yang mempunyai sengatan yang beralkali. ntara bahan berikut, apakah yang paling sesuai disapukan pada tempat yang disengat untuk merawat murid itu? Vinegar uka Ethanol Etanol Tooth paste Ubat gigi ooking oil Minyak masak 4541/1 SET1 JUJ KIMI 2017 16
43 4.05 g of powdered zinc oxide reacts with excess dilute hydrochloric acid. What is the mass of zinc chloride formed in the reaction? [relative atomic mass: O=16; l=35.5; Zn=65] 4.05 serbuk zink oksida bertindak balas dengan asid hidroklorik cair berlebihan. erapa jisim zink klorida yang terbentuk dalam tindak balas itu? [jisim atom relatif: O=16; l=35.5; Zn=65] 2.5 g 3.2 g 5.5 g 6.8 g 44 In an experiment, sulphuric acid reacts with excess magnesium to produce 36 cm 3 of hydrogen gas. iagram below shows the graph of the volume of hydrogen gas against time and curve II is obtained. alam satu eksperimen, asid sulfuric bertindak balas dengan magnesium yang berlebihan untuk menghasilkan 36 cm 3 gas hidrogen. Rajah dibawah menunjukkan graf isipadu gas hydrogen melawan masa dan lengkung II yang diperolehi. If the exsperiment is repeated by using another solution, which solution will produce curve I? Jika eksperimen diulang dengan menggunakan larutan lain, larutan yang manakah akan menghasilkan lengkung I? 10 cm 3 of 0.10 mol dm -3 nitric acid 10 cm 3 asid nitrik 0.10 mol dm -3 15 cm 3 of 0.10 mol dm -3 ethanoic acid 15 cm 3 asid etanoik 0.10 mol dm -3 20 cm 3 of 0.15 mol dm -3 sulphuric acid 20 cm 3 asid sulfurik 0.15 mol dm -3 40 cm 3 of 0.15 mol dm -3 hydrochloric acid 40 cm 3 asid nitrik 0.15 mol dm -3 4541/1 SET1 JUJ KIMI 2017 17
45 Which of the following reactants produces the highest rate of reaction with zinc powder? ntara bahan tindak balas berikut, yang manakah menghasilkan kadar tindak balas yang paling tinggi dengan serbuk zink? 25 cm 3 of sulphuric acid 0.1 mol dm -3 25 cm 3 asid sulfurik 0.1 mol dm -3 25 cm 3 of ethanoic acid 0.1 mol dm -3 25 cm 3 asid etanoik 0.1 mol dm -3 25 cm 3 of nitric acid 0.1 mol dm -3 25 cm 3 asid nitrik 0.1 mol dm -3 25 cm 3 of hydrochloric acid 0.1 mol dm -3 25 cm 3 asid hidroklorik 0.1 mol dm -3 46 The combustion of propanol in excess oxygen gives out water and carbon dioxide gas. What is the mass of propanol required to produce 60 dm 3 of carbon dioxide gas at room temperature? [ Relative atomic mass: =12, O=16, H=1; Molar volume at room condition=24dm 3 ] Pembakaran propanol dalamoksigen berlebihan menghasilkan air dan gas karbon dioksida. pakah jisim propanol yang diperlukan untuk menghasilkan 60 dm 3 gas karbon diokide pada suhu bilik. [ Jisim atom relatif: =12, O=16, H=1; Isipadu molar bagi gas pada suhu bilik=24dm 3 ] 25.0 g 37.5 g 27.5 g 50.0g 47 iagram below shows the apparatus set up to study the redox reaction. Rajah dibawah menunjukkan susunan radas untuk mengkaji tindak balas redoks arbon electrode Elektrod karbon Solution X Larutan X ilute sulphuric acid sid sulfuric cair arbon electrode Elektrod karbon Pottasium iodide Solution Larutan kalium iodida The galvanometer will not show a reading if the solution X is Galvanometer tidak akan menunjukkan bacaan jika larutan X tersebut ialah iron(iii) nitrate solution. larutan ferum(iii) nitrat cidified pottasium manganate(vii) solution larutan kalium manganat(vii) berasid Sodium hloride solution. larutan natrium klorida cidified hydrogen peroxide solution larutan hidrogen peroksida berasid 4541/1 SET1 JUJ KIMI 2017 18
48 Metal N displaces copper from copper(ii) nitrate solution but does not displaces zink from zink nitrate solution. Which of the following correctly shows the arrangement of copper, N and zink metals in descending order as a reducing agent? Logam N menyesarkan kuprum daripada larutan kuprum(ii) nitrat tetapi tidak menyesarkan zink dengan larutan zink nitrat. ntara berikut, yang manakah menunjukkan susunan yang betul bagi logam kuprum, logam N dan logam zink itu dalam tertib menurun sebagai agen penurunan? Zn, u, N Zn, N, u N, u, Zn u, N, Zn 49 The chemical reaction is said to be exothermic if Tindakbalas kimia dikatakan eksotermik jika I heat energy is absorbed from its surroundings Tenaga haba diserap dari persekitaran. II the energy content of the reactants is higher than the products. kandungan tenaga bahan bagi bahan tindak balas lebih tinggi daripada hasil. III the energy content of the reactants is lower than the products. kandungan tenaga bahan bagi bahan tindak balas lebih rendah daripada hasil. IV a lot of heat energy is produced during the reaction. anyak tenaga yang dihasikan semasa tindak balas itu. I and II only I dan II sahaja I and III only I dan III sahaja III and IV only III dan IV sahaja I, II and III only I,II dan III sahaja 4541/1 SET1 JUJ KIMI 2017 19
50 The following information shows the results of an experiment to determine the heat change for the combustion of butanol. Maklumat berikut menunjukkan keputusan bagi satu eksperimen untuk menentukan perubahan haba bagi pembakaran butanol. Volume of water in copper tin Isipadu air dalam tin kuprum Initial temperature Suhu awal Higher temperature Suhu tertinggi = 250cm 3 = 25.5 o = 70.2 o alculate the heat released by the combustion of butanol. [Specific heat capacity of water = 4.2 Jg -1 o -1 ] Hitung haba yang dibebaskan dari pembakaran butanol [kapasiti haba tentu butanol ialah = 4.2 Jg -1 o -1 ] 42.93 KJ 46.94 KJ 56.39 KJ 63.49 KJ EN OF QUESTION PPER KERTS SOLN TMT 4541/1 SET1 JUJ KIMI 2017 20