1 Which of the following is an inorganic compound. star A Carbon dioxide B Propanol C Glucose D Natural gas T5 Chapter 2.1 Types of Carbon Compound
2 What is the meaning of Avogadro's constant? star A Number of particles in one mole a substance B Pressure of one mole of a substance C Volume occupied by one mole of gas D Mass of one mole of a substance T4 Chapter 3.2 Mole Concept
3 Which of the following is explaining the reduction reaction? star A Gain of oxygen B Gain of hydrogen C Increase in oxidation number D Loss of electron T5 Chapter 1.1 Oxidation and Reduction
4 Which of the following statements is true about effective collision? star A Collision of reaction particles in the correct orientation B Collisions of particles with high kinetic energy C Collisions of particles that reach active energy D Collisions of particles that produce new reactions T4 Chapter 7.4 Collision Theory
5 Which of the following uses polyethene? star A Tyre B Toys C Water pipe D Plastic packaging T5 Chapter 4.1 Polymer
6 The chemical substance with highest pH value is star A strong acid B strong alkali C weak acid D weak alkali T4 Chapter 6.2 pH Value
7 Which of the following processes occur when ice changes to water? star A Exothermic B Endothermic C Neutralisation D Vulcanisation T5 Chapter 3.1 Heat Change in Reactions
8 The uses of catalysts increase the rate of reaction. Which of the catalysts is used to convert pollutants from car exhaust into safe substances before released into the environment? star A Platinum B Iron C Palladium D Nickel T4 Chapter 7.3 Application of Factors that Affect the Rate of Reaction in Daily Life
9 The elements in the Modern Periodic Table of Elements are arranged according to star A The order of relative atomic mass is ascending B The order of increasing proton number C Ascending order of nucleon number D Valence electron number T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements
10 What is the composition of fused silica glass? star A Soda B Boron oxide C Alumina D Silica T4 Chapter 8.2 Composition of Glass and Its Uses
11 Soaps are produced from the ___________ reaction between fatty acids and alkalis. star A saponification B addition C oxidation D neutralisation T5 Chapter 5.2 Cleaning Agents
12 > Nucleus contains neutrons that has no charge and the mass almost equal to protons. Who is the scientist? star A Neils Bohr B J. J. Thomson C James Chadwick D Ernest Rutherford T4 Chapter 2.2 The Development of the Atomic Model
13 What is the other name of Group 2 in the Periodic Table of Element? star A Alkali Earth metal B Alkali metal C Halogen D Noble gas
14 Which of the following statements is correct about chemical bonds? I A hydrogen bond is a type of covalent bond in which the shared pair of electrons comes from only one atom II Electrostatic attraction between a sea of electrons and positively charged metal ions forms metallic bonds III Ionic bonds are formed by the transfer of electrons between metal atoms and non-metal atoms IV A single covalent bond is formed when two atoms share two pairs of electrons star A I and II B I and IV C II and III D III and IV T4 Chapter 5.2 Ionic Bond T4 Chapter 5.6 Metallic Bond
15 What is meant by strong acid? star A A highly concentrated acid B A highly corrosive acid C An acid that produces a high concentration of hydrogen ions in water D An acid which has the highest pH value T4 Chapter 6.3 Strength of Acids and Alkalis
16 ### Diagram 2 State types of composite materials in the machine. star A Reinforced concrete B Fibre glass C Optical fibre D Superconductor T4 Chapter 8.4 Composite Materials and Its Importance
17 ### Diagram 3 What is the name of the substance that gives the pleasant fragrance? star A Geranyl ethanoate B Ethane C Ethanol D Ethanoic acid T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
18 ### Diagram 4 What statement best describes the heat of reaction in the above situation? star A Heat is absorbed when 1 mole of copper is displaced from copper(II) sulphate by iron nail B Heat is released when 1 mole of copper is displaced from copper(II) sulphate solution by iron nail C Heat change when 1 mole of copper is displaced from copper(II) sulphate by iron nail D Heat is released when 1 mole of copper(II) sulphate reacts with iron nail T5 Chapter 3.2 Heat of Reaction
19 ### Diagram 5 Which of the following is the similarity between the monomer and its polymer? star A Molecular formula is C_2H_3Cl B Have double bond between carbon atoms C Contain carbon atom, hydrogen atom and chlorine atom D Number of carbon atoms in the molecule T5 Chapter 4.1 Polymer
20 Amran has washed his clothes with water from well but the dirt is still there. Which of the following statements is the most accurately describe the situation? star A There are calcium ion, Ca^2+ and magnesium ion, Mg^2+ in the well water B Use a small quantity of detergent C The presence of insoluble salt D The well water is too cold T5 Chapter 5.2 Cleaning Agents
21 ### Diagram 6 Which of the following phenomena occur at R? star A Supercooling B Superheating C Deposition D Condensation T4 Chapter 2.1 Basic Concepts of Matter
22 Which chemical equation is balanced? star A CaCO_3 → CaO + 2CO_2 B Zn + 2HCl → ZnCl_2 + H_2 C Zn(NO_3)_2 → ZnO + 2NO_2 + O_2 D NaOH + H_2SO_4 → Na_2SO_4 + H_2O T4 Chapter 3.4 Chemical Equation
23 ### Diagram 7 Which of the following compounds may form when element X reacts with element Y? star A XY_2 B X_2Y C XY_3 D XY T4 Chapter 5.1 Basics of Compound Formation
24 ### Diagram 8 What is the type of chemical bond that will be formed between atom P and atom Q? star A Ionic B Metallic C Dative D Covalent T4 Chapter 5.1 Basics of Compound Formation
25 Which of the following pairs of chemical substances and degree of dissociation is correct? star A Ammonia solution - Complete B Sodium hydroxide - Partial C Oxalic acid - Partial D Ethanoic acid - Complete T4 Chapter 6.3 Strength of Acids and Alkalis
26 Ammonia, NH_3 is produced by the direct combination between nitrogen, N_2 and hydrogen, H_2. ### Diagram 9 Choose the correct statement to explain the using of temperature 350 °C in the process of producing ammonia, NH_3. star A The percentage of products is low while the rate of reaction is high B The percentage of products is high while the rate of reaction is low C The percentage of products is high while the rate of reaction is high D The percentage of products is low while the rate of reaction is low T4 Chapter 7.2 Factors Affecting Rate of Reactions T5 Chapter 3.1 Heat Change in Reactions
27 ### Diagram 10 What is the most suitable characteristic that enables material X to be used widely? star A Easy to clean B Strong and hard C Chemically inert D Shiny T4 Chapter 8.3 Composition of Ceramics and Its Uses
28 ### Diagram 11 Which statement is true based on Diagram 11. I X atom has 3 electrons II X atom has +3 charge III X atom has no neutron IV X atom is neutral star A I and II B II and III C III and IV D I and IV T4 Chapter 2.3 Atomic Structure
29 Here is half of the oxidation equation. > 2Br^-(ak/aq) -> Br_2(ak/aq) + 2e^- Based on the equation, which statement is true? star A Electrons are donated by bromine B Electrons are accepted by bromine C Electrons are donated by bromide ion D Electrons are accepted by bromide ion T5 Chapter 1.1 Oxidation and Reduction
30 Which of the organic compound is an unsaturated hydrocarbon? star A Pentane B Pentene C Pentanol D Pentyl pentanoate T5 Chapter 2.1 Types of Carbon Compound T5 Chapter 2.2 Homologous Series
31 Petrol vapour and air are compressed in the car engine combustion chamber before burnt. The compression increases the number of petrol vapour per unit volume and allows the petrol to burn very quickly until it explodes. Choose one factor that affects the rate of reaction in the above statement. star A Size B Temperature C Pressure D Concentration T4 Chapter 7.3 Application of Factors that Affect the Rate of Reaction in Daily Life
32 ### Diagram 12 0.5 mole element Q reacts with element R to form compound QR. What is the mass of QR formed from the reaction? star A 10.0 g B 16.0 g C 20.0 g D 24.0 g T4 Chapter 3.2 Mole Concept T4 Chapter 3.3 Chemical Formula T4 Chapter 3.4 Chemical Equation
33 ### Diagram 13 In this reaction, the thermometer reading increases. Among the following pairs, which one is correct about the type of reaction and the value of X? star A Endothermic, +858.56 B Endothermic, -858.56 C Exothermic, +858.56 D Exothermic, -858.56 T5 Chapter 3.1 Heat Change in Reactions
34 The monomer of polyisoprene is isoprene or by the IUPAC name 2-methylbut-1,3-diene. What is the relative molecular mass of the monomer isoprene? [Relative atomic mass : C = 12, H = 1 ] star A 67 B 68 C 69 D 70 T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass
35 ### Table 1 | Type | Example | | Anti allergies | P | | Analgesics | Q | | Psychotic drugs | R | Which of the following represent P, Q and R? star A Antihistamines, Paracetamol, Haloperidol B Antimicrobials, Aspirin, Clozapine C Corticosteroids, Penicillin, Codeine D Antihistamines, Haloperidol, Paracetamol T5 Chapter 5.4 Medicines and Cosmetics
36 ### Table 2 | Gem | Element | | Ruby | Chromium | | Sapphire | Iron, titanium | | Amethyst | Manganese | Apart from the characteristics in the table above, choose the correct statement to explain the other characteristics found in the element. star A Elements have same oxidation numbers B Elements are soft metals with shiny surfaces C Elements exist as monoatomic gas D Elements form complex ions T4 Chapter 4.7 Transition Elements
37 ### Diagram 14 What is the concentration of sodium hydroxide solution in mol dm^{-3}? star A 0.5 B 0.4 C 0.2 D 0.1 T4 Chapter 6.7 Neutralisation
38 ### Diagram 15 | Bond | Bond energy (kJ mol^-1) | | H - H | 432 | | O = O | 494 | | H - O - H | 920 | A Chinese company is manufacturing a high-capacity train using hydrogen gas as fuel. If 0.8 kg hydrogen was used to propel the train for 100 km, how much heat energy was released? [Relative atomic mass : H = 1] star A 482 kJ B 1 846 kJ C 184 600 kJ D 192 800 kJ T5 Chapter 3.1 Heat Change in Reactions
39 ### Diagram 16 Which of the following statements best describes the reaction of the metal used? star A Magnesium is more reactive towards oxygen, Copper is more reactive towards oxygen B Magnesium is flammable, Copper is not flammable C Magnesium is more reactive towards oxygen, Copper is less reactive towards oxygen D Magnesium is less reactive towards hydrogen, Copper is more reactive towards hydrogen T5 Chapter 1.1 Oxidation and Reduction
40 ### Table 4 | Set | Chemical reaction | Heat of neutralisation ΔH (kJ mol^{-1}) | | I | HCl + NaOH → NaCl + H_2O | x | | II | CH_3COOH + NaOH → CH_3COONa + H_2O | y | Which of the following statements is true regarding the thermochemical equation above? star A Hydrochloric acid, HCl is a strong acid that ionises partially in water, Ethanoic acid, CH_3COOH is a weak acid that ionises fully in water B Hydrochloric acid, HCl produces high concentration of hydrogen ion, Ethanoic acid, CH_3COOH produces low concentration of hydrogen ion C The reaction between hydrochloric acid, HCl and sodium hydroxide, NaOH is complete, The reaction between ethanoic acid, CH_3COOH and sodium hydroxide, NaOH is incomplete D Heat of reaction, ΔH is positive, Heat of reaction, ΔH is negative T5 Chapter 3.2 Heat of Reaction