1 Diagram 1 shows zinc granules which is put into a conical flask containing sulphuric acid to produce gas A. What is gas A? star A Oxygen B Hydrogen C Ammonia D Carbon dioxide gas T4 Chapter 6.4 Chemical Properties of Acids and Alkalis
2 Which substance is electrolyte? star A Propanol B Naphthalene C Sodium chloride D Hydrogen chloride T5 Chapter 1.4 Electrolytic Cell
3 Diagram 2 shows the arrangement of particles of a substance that undergo change in the physical state through process Y. Which of the following substances undergo process Y? I Bromine II Iodine III Chlorine IV Naphthalene star A I and IV B I and III C II and III D II and IV T4 Chapter 2.1 Basic Concepts of Matter
4 Which of the following substance is an element? star A Water B Neon C Oxygen T4 Chapter 2.1 Basic Concepts of Matter
5 Diagram 3 shows the standard representation symbol of beryllium atom. What is the number of valence electron for beryllium atom? star A 2 B 3 C 4 D 9 T4 Chapter 2.3 Atomic Structure
6 Which of the following Group 1 elements has the smallest atomic size? star A Lithium B Sodium C Potassium D Rubidium T4 Chapter 4.4 Elements in Group 1
7 Which of the following elements could form coloured compounds and aqueous solutions? star A Aluminium B Chromium C Scandium D Potassium T4 Chapter 4.7 Transition Elements
8 The scuba tank used by deep sea divers contains 79% nitrogen and 21% a mixture of oxygen and unknown elements. Which of the following could be the element? star A Argon B Fluorine C Helium D Hydrogen T4 Chapter 4.3 Elements in Group 18
9 Which substance is a covalent compound? star A Magnesium oxide B Copper(II) oxide C Sodium chloride D Hydrogen chloride T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
10 Diagram 4 shows the formation of bonding X. What is bonding X? star A Ionic bond B Dative bond C Covalent bond D Hydrogen bond T4 Chapter 5.5 Dative Bond
11 Which of the following is an example of makeup cosmetic? star A Eyeshadows B Facial masks C Deodorants D Skin moisturisers T5 Chapter 5.4 Medicines and Cosmetics
12 When glass X is heated to high temperature and quickly plunged into cold water, X does not crack. What is the possible glass that represent X? star A Soda lime glass B Fused silica glass C Lead crystal glass D Borosilicate glass T4 Chapter 8.2 Composition of Glass and Its Uses
13 Which of the following does not happen when the temperature is increased? star A Particles move faster. B Particles collide more often C Particles collide with more energy. D More particles collide in the correct orientations. T4 Chapter 7.4 Collision Theory
14 Diagram 5 shows magnetic resonance imaging where material X is used in particle acceleration. What is material X? star A Photochromic glass B Superconductor C Optical fibre D Reinforced concrete T4 Chapter 8.4 Composite Materials and Its Importance
15 Petroleum consists of hydrocarbons. How are these hydrocarbons separated? star A Through melting and condensation processes. B Through boiling and distillation processes. C Through fractional distillation and cracking processes. D Through boiling and condensation processes. T5 Chapter 2.1 Types of Carbon Compound
16 Diagram 6 shows set-up of apparatus to prepare compound X. Which of the following statement is true about compound X? I Has general formula C_nH_2n II Has functional group of —COOH III Reacts with magnesium to produce hydrogen gas IV Reacts with hydrogen at 180 °C in the presence of nickel to produce alkane star A I and III B I and IV C II and III D II and IV T5 Chapter 2.2 Homologous Series T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
17 Why the boiling point of water is higher than methane? star A Water is liquid but methane is gas B Carbon is more electronegative than oxigen C The force of attraction in water molecule is stronger than in methane molecule D Structure of water molecule is bent while structure of methane molecule is linear T4 Chapter 5.4 Hydrogen Bond
18 Diagram 7 shows the atom model of a compound. Which of the following is correct about the compound? star A High melting and boiling points B Formed from the sharing of electrons of metal atoms C Van der Waals force of attraction exists between its molecules T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
19 Which of the following is the importance of Green Technology? star A Build a sustainable industry B Improving efficiency in transportation C Understand customer tastes D Improving standards of living T5 Chapter 5.6 Application of Green Technology in Industrial Waste Management
20 Diagram 8 shows the structural formula of an isomer for an alkene. Name the isomer according to the IUPAC nomenclature system. star A 2-methylbut-2-ene B 3-methylpent-2-ene C 3-methylpent-3-ene D 2,2-dimethylbut-2-ene T5 Chapter 2.4 Isomers and Naming Based on IUPAC Nomenclature
21 The following ionic equation shows the reaction between zinc and acid. Zn + 2H$^+$ -> Zn$^{2+}$ + H$_2$ What is the oxidation number change for hydrogen? star A 0 to +1 B 0 to +2 C +1 to 0 D +1 to +2 T5 Chapter 1.1 Oxidation and Reduction
22 Which of the following equations represents a redox reaction? star A 2 CH_3COOH + CaCO_3 -> (CH_3COO)_2Ca + H_2O + CO_2 B Pb(NO_3)_2 + 2 KI -> PbI_2 + 2KNO_3 C H_2SO_4 + CuO -> CuSO_4 + H_2O D 2 CuO + C -> 2 Cu + CO_2 T5 Chapter 1.1 Oxidation and Reduction
23 What is the mass of phosphorus that contains twice the number of atoms found in 14g of iron? [Relative atomic mass : P = 31 ; Fe = 56] star A 62.0 g B 28.0 g C 15.5 g D 10.7 g T4 Chapter 3.2 Mole Concept
24 Which of the following statements is correct about one mole of ethane gas, C_2H_4 and one mole of carbon dioxide, CO_2 gas? [Relative atomic mass: H, 1; C, 12; O, 16] I Both have the same number of atoms. II Both have the same number of molecules. III Both have the same relative molecular mass. IV Both have the same volume at the same temperature and pressure. star A I and II B I and III C II and IV D III and IV T4 Chapter 3.2 Mole Concept
25 Marble chips react with hydrochloric acid to produce carbon dioxide. The equation for the reaction is as follows: CaCO_3 + 2HCl -> CaCl_2 + H_2O + CO_2 Antara berikut, yang manakah menghasilkan kadar tindak balas rendah? Which of the following will lower the rate of the reaction? star A Use more dilute hydrochloric acid B Use smaller sized marble chips C Use a larger volume of hydrochloric acid D Use marble chips that have a larger surface area T4 Chapter 7.2 Factors Affecting Rate of Reactions
26 Diagram 9 shows the electron arrangement in compound JL. Which elements is represented by J and L? star A Lithium, Oxygen B Lithium, Fluorine C Beryllium, Fluorine T4 Chapter 4.4 Elements in Group 1 T4 Chapter 4.5 Elements in Group 17 T4 Chapter 5.1 Basics of Compound Formation
27 Rubber plays an important role in the development of our country's economy. One of the uses of rubber is making tyres as shown in Diagram 10. The material used to make tyres is vulcanised rubber, which is natural rubber added with sulphur. What happens when sulphur is added into natural rubber? star A Rubber molecules slide more easily over each other B Sulphur atoms form cross-links between rubber molecules C The melting point of rubber decreases D Elasticity of rubber increases T5 Chapter 4.2 Natural Rubber
28 Diagram 11 shows structure of rubber T. Which of the following is the property of rubber T? star A Easily sticky when heated B Easily oxidized C Elastic T5 Chapter 4.2 Natural Rubber
29 A student carries out an experiment. He wants to produce a rubber strip that is more resistant to heat and more elastic. He dips the rubber strip in a beaker containing disulphur dichloride and substance X. What is substance X? star A Ammonia solution B Methylbenzene C Ethanoic acid D Sodium chloride solution T5 Chapter 4.2 Natural Rubber
30 Natrium hydroxide solution 0.10 mol dm^-3 was added to the beakers which containing 25 cm^3 of 0.1 mol dm^-3 of hydrochloric acid. The changes of pH value of the solutions in the beaker was measured with pH metre. The result was recorded in Table 1. | Bikar | 1 | 2 | 3 | 4 | | Beaker | | | | | | Isipadu NaOH (cm^3) | 0.0 | 12.5 | 25.0 | 50.0 | | Volume of NaOH (cm^3) | | | | | | Nilai pH | 1 | 3 | x | 13 | | pH value | | | | | Jadual 1 / Table 1. What is the pH value of third beaker? star A 5.0 B 7.0 C 9.0 D 11.0 T4 Chapter 6.7 Neutralisation
31 Table 2 shows the pH values of various solutions. | Larutan Solution | P | Q | R | S | T | |---|---|---|---|---|---| | pH | 2 | 5 | 1 | 7 | 9 | Jadual 2/Table 2 Which pair of solutions can react with sodium carbonate to produce carbon dioxide gas? star A P, R B Q, S C P, T D Q, R T4 Chapter 6.4 Chemical Properties of Acids and Alkalis
32 A series of tests are conducted to verify the cation and anion that is present in a salt solution. Table shows the observation for each test. | Ujian /Test | Pemerhatian /Observation | |---|---| | Tambah larutan natrium hidroksida secara berlebihan ke dalam larutan garam Add an excess of sodium hydroxide solution into the salt solution | Mendakan putih terbentuk dan tidak larut dalam larutan natrium hidroksida yang berlebihan. White precipitate formed and insoluble in excess sodium hydroxide | | Tambah larutan ammonia secara berlebihan ke dalam larutan garam Add an excess of ammonia solution into a salt solution | Mendakan putih terbentuk dan tidak larut dalam larutan ammonia yang berlebihan. White precipitate formed and insoluble in excess ammonia solution | Rajah 11 /Diagram 11 Which of the following is the cation present in the salt solution? star A Ca^2+ ion B Mg^2+ ion C Zn^2+ ion D Pb^2+ ion T4 Chapter 6.11 Qualitative Analysis
33 Diagram 12 shows the structural formula of ester that produces the fragrant smell found in green apple. Alia wants to prepare the ester in laboratory. Which of the following can be used to prepare the ester? star A Butanoic acid and methanol B Butanoic acid and butanol C Methanoic acid and butanol D Methanoic acid and methanol T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
34 Ethene can be differentiate from ethane because ethene can star A Soluble in water B Does not burn in the air C React with alcohol to produce ester D Bleaching the brown colour of bromine water T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
35 Diagram 13 shows the arrangement of apparatus for the electrolysis of molten lead(II) oxide, PbO. Which of the following half-equations occurs at the anode and cathode? star A Pb^2+ + 2e -> Pb, 2O^2- -> O_2 + 4e B 2O^2- -> O_2 + 4e, 2H^+ + 2e -> H_2 C Pb^2+ + 2e -> Pb, 2H^+ + 2e -> H_2 D 2O^2- -> O_2 + 4e, Pb^2+ + 2e -> Pb T5 Chapter 1.4 Electrolytic Cell
36 Diagram 14 shows the arrangement of the apparatus to study the effect of other metals on the corrosion of iron. Given the value of the standard electrode potential as follows. Zn^2+ (ak) + 2e \rightleftharpoons Zn (p) -0.76 V Fe^2+ (ak) + 2e \rightleftharpoons Fe (p) - 0.44 V Cu^2+ (ak) + 2e \rightleftharpoons Cu (p) + 0.34 V Pb^2+ (ak) + 2e \rightleftharpoons Pb (p) - 0.13 V In which test tube can the blue spot be observed? star A I dan II B I dan III C II dan III T5 Chapter 1.6 Rusting
37 When 50 cm^3 of 2.0 mol dm^-3 lead (II) nitrate was added to 50 cm^3 of 2.0 mol dm^-3 of sodium sulphate, the temperature increased by 10 °C. What is the value of heat of precipitation? [Specific heat capacity of solution = 4.2 Jg^-1 °c^-1; Density of solution = 1.0 g cm^-3] star A -21 kJ mol^-1 B +21 kJ mol^-1 C -42 kJ mol^-1 D +42 kJ mol^-1 T5 Chapter 3.2 Heat of Reaction
38 Digital communication plays a very important role in modern living. Effective transmission of data, voices and images in a digital format requires a suitable material. What is the material? star A Copper B Silicon C Optical fibre D Superconductor T4 Chapter 8.4 Composite Materials and Its Importance
39 The thermochemical equation represents the combustion of heptane in excess oxygen. C_7H_16(l) + 11O_2(g) -> 7CO_2(g) + 8H_2O(l) ; \Delta H = -7521 kJ mol^-1 Pembakaran heptana dalam lebihan oksigen membebaskan 526.47 kJ tenaga. Berapakah jisim heptana yang digunakan? [Jisim atom relatif: H = 1, C = 12] The combustion of heptane in excess oxygen releases 526.47 kJ of energy. What is the mass of heptane used? [Relative atomic mass: H = 1, C = 12] star A 3.5 g B 7.0 g C 9.0 g D 12.5 g T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass T4 Chapter 3.4 Chemical Equation T5 Chapter 3.2 Heat of Reaction
40 Diagram 15 shows the energy level diagram of the displacement reaction between Magnesium and iron(II) chloride solution. What is the increase in temperature if 50 cm³ of 0.20 mol dm⁻³ iron(II) chloride solution is reacted with excess magnesium? [Specific heat capacity of the solution = 4.2 J g⁻¹ °C⁻¹; Density of solution = 1.0 g cm⁻³] star A 2.03 °C B 5.01 °C C 7.02 °C D 10.03 °C T4 Chapter 6.5 Concentration of Aqueous Solution T5 Chapter 3.2 Heat of Reaction