1 Diagram 1 shows a situation where a candy is placed under sunlight. What is process X? star A Melting B Evaporation C Freezing D Sublimation T4 Chapter 2.1 Basic Concepts of Matter
2 Which of the following matches is correct about neutron? star A -1, 0 B 0, 1 C 0, 0 D +1, 1 T4 Chapter 2.2 The Development of the Atomic Model
3 'Electrons are free to move and are not owned by any atom nor ion'. What is the correct term for the statement? star A Valence electron B Metallic bond C Sea of electrons D Delocalised electrons T4 Chapter 5.6 Metallic Bond
4 Graphene is a material with many superior properties. What are the properties of graphene? star A Opaque B Shining C Strong and hard D Low electrical resistance T5 Chapter 5.5 Application of Nanotechnology in Industry
5 Which of the following bases dissolves in water? star A Sodium oxide B Magnesium oxide C Calcium hydroxide D Copper(II) hydroxide T4 Chapter 6.1 The Role of Water in Showing Acidic and Alkaline Properties
6 Which of the following noble gases are correctly match with its uses? star A I and II B I and III C II and IV D III and IV T4 Chapter 4.3 Elements in Group 18
7 What is the property of yttrium barium copper oxide ceramic, YBCO? star A High stretching strength B High compression strength C High electrical resistance at room temperature D No electrical resistance at very low temperature T4 Chapter 8.4 Composite Materials and Its Importance
8 Diagram 8 shows the electron arrangement of a compound. Which of the following substances can dissolve the compound? star A Water B Ethanol C Hexane D Methylbenzene T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
9 Which of the following is the example of fast reaction and slow reaction? star A Combustion of petrol in car engine, Photosynthesis B Photosynthesis, Fruit decay C Electric cell reaction, Combustion of petrol in car engine D Fruit decay, Electric cell reaction T4 Chapter 7.1 Determining Rate of Reaction
10 The following apparatus are made up of substance M. Which of the following characteristics makes M suitable for making the apparatus? - High refractive index - Low coefficient of thermal expansion - Resistance to high temperature when heated - Easy to mold into glass containers star A I and II B I and IV C II and III D III and IV T4 Chapter 8.2 Composition of Glass and Its Uses
11 Which of the following metals is extracted from its ore by electrolysis method? star A Potassium B Copper C Tin D Iron T5 Chapter 1.5 Extraction of Metal from Its Ore
12 Reaction Q occurs when methane gas reacts with chlorine gas under sunlight. What is reaction Q? star A Combustion B Hydration C Oxidation D Substitution T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
13 Which of the following number of moles represented the correct heat of reaction? star A Mole of the salt produced for heat of neutralisation B Mole of the solid formed for heat of precipitation C Mole of oxygen supplied for heat of combustion D Mole of the metal used for heat of displacement T5 Chapter 3.2 Heat of Reaction
14 Diagram 14 shows the structural formula of a polymer. What is the characteristic of the polymer? star A High permeability in water B Becomes brittle when heated C Hard white solid in room temperature D Easily reacts with alkali T5 Chapter 4.1 Polymer
15 An experiment was conducted to determine the empirical formula of an oxide of copper. Hydrogen gas is flowed continuously until the glass tube is cooled to room temperature after heating is stopped. Which of the following statements is correct to explain why the step is taken? star A Avoid copper from being oxidised B Remove the air from glass tube C Ensure the reaction is completed D Avoid water droplets form on the wall of glass tube T4 Chapter 3.3 Chemical Formula
16 Diagram 16 shows a type of plant that can be found around residential areas. What is the function of the plant? star A Relieves joint pain B Prevents colds C Treats skin disease D Reduces cholesterol level T5 Chapter 5.4 Medicines and Cosmetics
17 Diagram 17 shows the energy profile diagram for a reaction. Which of the following diagrams shows the correct activation energy level, Ea? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 7.4 Collision Theory
18 Diagram 18 shows the formation of ammonium chloride. What of the following statements is correct about the reaction? star A 1 unit of hydrogen chloride reacts with 1 unit of ammonia producing 1 unit of ammonium chloride B 1 mol of hydrogen chloride molecules reacts with 1 mol of ammonia molecules producing 1 mol of ammonium chloride C 1 molecule of hydrogen chloride react with 1 molecule of ammonia producing 1 molecule of ammonium chloride D 0.5 mol of hydrogen chloride molecules reacts with 1 mol of ammonia molecules producing 1.5 mol of ammonium chloride T4 Chapter 3.4 Chemical Equation
19 Diagram 19 shows the standard representation of an atom of element T. Which of the following properties is correct about element T? star A Produces a yellowish solution when dissolves in sodium hydroxide solution B Reacts with bromine to form a brown solid C Reacts with oxygen gas to form a basic oxide D Produces an acidic solution when dissolves in water T4 Chapter 4.5 Elements in Group 17
20 Which of the following particles is responsible in showing acidic properties in hydrogen chloride solution? star A Hydrogen atom B Chloride ion C Hydrogen ion D Hydroxide ion T4 Chapter 6.1 The Role of Water in Showing Acidic and Alkaline Properties
21 Diagram 21 shows the standard representation of atoms of sodium and oxygen elements. Which of the following statements explains how bond is formed when these two elements react? star A One Na atom donates one electron to one O atom B Two Na atoms donate two electrons to one O atom respectively C One O atom receives one electron from two Na atoms respectively D One O atom shares two pairs of electrons with one Na atom T4 Chapter 5.2 Ionic Bond
22 Which of the following is a reduction reaction? star A Zn atom changes to Zn^2+ ion B MnO_4^- ion changes to Mn^2+ ion C Cl^- ion changes to Cl_2 molecule D H_2S molecule changes to S atom T5 Chapter 1.1 Oxidation and Reduction
23 Diagram 23 shows the apparatus set up for two redox reactions. What is the process occured at electrode X in Set I and observation at electrode Y in Set II? star A Oxidation, Brown solid deposited B Oxidation, Colourless bubble of gas released C Reduction, Brown solid deposited D Reduction, Colourless bubble of gas released T5 Chapter 1.4 Electrolytic Cell
24 The following ionic equation represents the reaction between sodium thiosulphate solution and sulphuric acid. > 2H^+ + S_2O_3^{2-} → S + SO_2 + H_2O Which of the following statements explains the effect of the increasing of the concentration of sodium thiosulphate solution on the rate of reaction? star A Activation energy becomes lower B Kinetic energy of thiosulphate ions increase C Mass of sodium thiosulphate dissolved in 1 dm³ water increases D The time of collision between hydrogen ions and thiosulphate ions increases T4 Chapter 7.2 Factors Affecting Rate of Reactions
25 Aqil washed the oil stain on his shirt using soap and well water but the dirt remained. Which of the following statements describes the situation? star A The well water temperature is low B Soluble salts are produced C Small amount of soap is used D Calcium ion and magnesium ion are present in well water T5 Chapter 5.2 Cleaning Agents
26 Diagram 26 show a part in washing machine which is made of stainless steel. Which of the following explains the use of stainless steel in washing machine? star A Absorbs odour and dirt from clothes B Withstand high heat produced C Has resistance to corrosion D Conducts the electric current supplied T4 Chapter 8.1 Alloy and Its Importance
27 Which of the following is the same for 1 mole of sulphur dioxide, SO2 gas and 1 mole of sulphur trioxide, SO3 gas? star A Mass B Number of atoms C Number of molecules D Number of electrons T4 Chapter 3.2 Mole Concept
28 Diagram 28 shows a chemical equation for a reaction of a carbon compound. Which of the following substances are suitable to be used as X? - Porcelain chips - Phosphoric acid - Slaked lime - Concentrated sulphuric acid star A I and II B I and IV C II and III D III and IV T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
29 Diagram 29 shows the apparatus set up of an experiment to determine the heat of reaction. Which of the following assumption should be made in the calculation to determine the heat of reaction? star A The density of fuel is equal to the density of water B The volume of water and the mass of fuel used are proportional C The specific heat capacity of fuel is equal to the specific heat capacity of water D Heat released during combustion of fuel is not absorbed by the copper container T5 Chapter 3.2 Heat of Reaction
30 Diagram 30 shows a structural formula of polymer X. Which of the following statements is correct about the polymerisation reaction to produce X? star A The polymerisation reaction occurs at the hydroxyl and carboxylate groups of the monomers involved B The polymerisation occurs towards monomer which has single covalent bond in its molecule C The product of the polymerisation is polymer X and another by-product D The polymerisation involves monomers from two different homologous series T5 Chapter 4.1 Polymer
31 Diagram 31 shows the natural abundance of two isotopes of an element. What is the value of y? [Relative atomic mass : B = 10.8] star A 2.8 B 10 C 10.9 D 11.2 T4 Chapter 2.4 Isotopes and Its Uses
32 The empirical formula of compound P is CH_2O. What is the volume of hydrogen gas released when 20 cm^3 of 0.5 mol dm^{-3} compound P reacts with excess zinc? [Relative atomic mass : H = 1, C = 12, O = 16, Molar mass of compound P = 60 g mol^{-1}, Molar volume of gas = 24 dm^3 mol^{-1} at room conditions] star A 120 cm^3 B 240 cm^3 C 1200 cm^3 D 2400 cm^3 T4 Chapter 3.2 Mole Concept T4 Chapter 3.3 Chemical Formula
33 Diagram 33 shows the apparatus set-up to study the chemical property of element Y which is located in Group 1 of the Periodic Table of Elements. What is the mass of element Y burnt if the number of moles of the product formed in the reaction is 0.15 mol? [Relative atomic mass : Y = 7] star A 1.05 g B 2.10 g C 4.20 g D 7.00 g T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation T4 Chapter 4.4 Elements in Group 1
34 Amin's finger was stung by a bee while helping his mother gardening in house yard. What is the action should be taken by his mother to relieve Amin's pain? star A Apply baking powder paste on the finger B Put aloe vera gel on the finger C Squeeze lime juice on the finger D Dip finger into vinegar T4 Chapter 6.7 Neutralisation
35 Diagram 35 shows a chemical equation of a chemical reaction. What is substance W and the observation of chemical test to identify X? star A CH3COOH, Blue litmus paper turns red B CH3COOH, Lighted wooden splinter produced pop sounds C C2H5OH, Glowing wooden splinter lights up D C2H5OH, Lime water turns cloudy T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
36 Diagram 36 shows the apparatus set up for an experiment conducted by a group of pupils. The pupils intend to electroplate the spoon with grey coating but the spoon becomes brown instead. What modification should be done to obtain the grey coating? star A Rotate iron spoon continuously B Change the copper(II) sulphate solution to silver nitrate solution C Change the concentration of copper(II) sulphate solution to 2.0 mol dm^-3 D Change the position of batteries terminal for silver electrode and iron spoon T5 Chapter 1.4 Electrolytic Cell
37 Diagram 37 shows an apparatus set up for an experiment to determine the heat of displacement of copper. The heat of displacement of copper obtained is -210 kJ mol⁻¹. What is the maximum temperature of the mixture if the initial temperature of the solution is 30.0 °C? [Specific capacity of solution = 4.2 J g⁻¹°C⁻¹] star A 25.0 °C B 35.0 °C C 45.0 °C D 55.0 °C T5 Chapter 3.2 Heat of Reaction
38 Diagram 38 shows the observation obtained from the experiment carried out to investigate the elasticity of two types of rubber. Which of the following statements explains the comparison between this property? star A Attraction forces of rubber polymer in rubber II is stronger with the presence of sulphur. B The presence of sulphur cross link pulls the rubber polymer in rubber II back to its original arrangement C Formation of sulphur cross link decreased the number of double covalent bonds in rubber I D Relative molecular mass of rubber I is greater with the presence of sulphur T5 Chapter 4.2 Natural Rubber
39 Diagram 39 shows the apparatus set up of an experiment to determine the end point of titration. Table 39 shows the result obtained from the experiment | Titration | I | II | III | | :--- | :--- | :--- | :--- | | Final burette reading (cm^3) | 25.00 | 34.00 | 39.00 | | Initial burette reading(cm^3) | 0.00 | 10.00 | 13.00 | What is the concentration of barium hydroxide solution used? star A 0.050 mol dm^-3 B 0.025 mol dm^-3 C 0.100 mol dm^-3 D 0.200 mol dm^-3 T4 Chapter 6.5 Concentration of Aqueous Solution T4 Chapter 6.7 Neutralisation
40 Table 40 shows the conditions of reactants for two set of experiments. | Experiment | Reactants | | :--- | :--- | | I | 50 cm^3 of 2.0 mol dm^-3 hydrochloric acid + excess zinc powder | | II | 25 cm^3 of 2.0 mol dm^-3 sulphuric acid + excess zinc powder | Which of the following graphs represents both set of experiments? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 7.2 Factors Affecting Rate of Reactions