1 Diagram 1 shows a curve of change in the state of matter for solid Z. What is the point X and physical state Z from R to S? star A Freezing, Liquid B Melting, Solid C Freezing, Solid and liquid D Melting, Solid and liquid T4 Chapter 2.1 Basic Concepts of Matter
2 Which of the following is the correct match of each substance and its type of particles? star A Ion, Molecule, Atom B Molecule, Ion, Atom C Molecule, Atom, Ion D Atom, Ion, Molecule T4 Chapter 2.1 Basic Concepts of Matter
3 The following statement refer the contribution of scientist in developing Periodic Table of Element. - Plotted the graph of the atomic volume against the atomic mass the elements. - Elements at equivalent positions on the curve of the graph had similar chemical properties. Who was the scientist? star A Lothar Meyer B Henry Moseley C John Newlands D Dmitri Mendelev T4 Chapter 4.1 The Development of the Periodic Table of Elements
4 Helium gas had inert property. Which of the following statement is correct of the property? star A Has low density B Exists as monoatomic gas C Placed in Group 18 in the Periodic Table of Elements D Achieved stable electron arrangement T4 Chapter 4.3 Elements in Group 18
5 Which of the following is an ionic compound? star A Butane B Glucose C Calsium oxide D Silicon dioxide T4 Chapter 5.2 Ionic Bond
6 Diagram 6 shows the electron arrangement in compound PQ_2. Which elements are represented by P and Q? [Proton number. H=1, C=6, O=8, Cl = 17] star A Carbon, Oxygen B Oxygen, Hydrogen C Hydrogen, Chlorine D Carbon, Chlorine T4 Chapter 5.3 Covalent Bond
7 What ion is produced when a hydrogen ion combines with a water molecule? star A Oxide ion B Hydroxide ion C Ammonium ion D Hydroxonium ion T4 Chapter 5.5 Dative Bond T4 Chapter 6.1 The Role of Water in Showing Acidic and Alkaline Properties
8 What does acid basicity mean? star A The number of hydrogen ions, H+ that can be produced by one molecule acid that ionizes in water. B The number of hydroxide ions, OH- that can be produced by one molecule acid that ionizes in water. C The number of ammonium ions, NH4+ that can be produced by one molecule acid that ionizes in water. D The number of hydroxonium ions, H3O+ that can be produced by one molecule acid that ionizes in water. T4 Chapter 6.1 The Role of Water in Showing Acidic and Alkaline Properties
9 Which of the following is a slow reaction? I Precipitate reaction II Fermentation reaction III Combustion reaction IV Decay reaction star A I and II B I and III C II and IV D III and IV T4 Chapter 7.1 Determining Rate of Reaction
10 Which of the following is a factor that affects the rate of reaction? star A Temperature B Volume C Number of mol D Number of particles T4 Chapter 7.2 Factors Affecting Rate of Reactions
11 The following information is about the uses of substance S. - Cutting disc - Brake disc - Tungsten carbide ring What is substance S? star A Superconductor B Advanced ceramics C Traditional ceramics D Reinforced concrete T4 Chapter 8.3 Composition of Ceramics and Its Uses
12 Substance T has the following properties: - High stretching strength - Heat and electrical insulator - Resistant to corrosion - Durable What is the use of T? star A Helmet B Video camera C Camera lens D Cables in computer network T4 Chapter 8.4 Composite Materials and Its Importance
13 What is meant by conductor? star A A substance that conducts electricity under all conditions B A substance that conducts an electric current and breaks down into its constituents C A substance that conducts electricity in a solid or molten state but does not undergo a chemical change D A substance that can conduct an electric current in a molten state or an aqueous solution and undergoes a chemical change T5 Chapter 1.4 Electrolytic Cell
14 Diagram 14 shows a simple cell. What anion are present in the electrolyte? star A H+ B Pb2+ C OH- D Cl- T5 Chapter 1.3 Voltaic Cell
15 What is the product formed when hydrogen and propene are passed over a nickel catalyst at temperature 180°C? star A Propane B Propanol C Propanoic acid D Propyl propanoate T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
16 Diagram 16 shows a flow chart for the reactions of compound R. What is the general formula of R? star A CnH2n B CnH2n+2 C CnH2n+1OH D CnH2n+1COOH T5 Chapter 2.2 Homologous Series
17 Diagram 17 show the thermochemical equation of acids and alkalis are given as below: | HCl + NaOH -> NaCl + H2O | ΔH = - 57 kJ mol^-1 | | CH3COOH + NaOH -> CH3COONa + H2O | ΔH = - 55 kJ mol^-1 | Heat of neutralisation of HCl is higher because star A HCl is a strong acid B HCl is monoprotic acid C CH3COOH is strong acid D CH3COOH is diprotic acid T4 Chapter 6.3 Strength of Acids and Alkalis T5 Chapter 3.2 Heat of Reaction
18 Diagram 18 is an energy level diagram of a reaction. What is the type of reaction? star A Exothermic B Endothermic C Reduction D Addition T5 Chapter 3.1 Heat Change in Reactions
19 Among the following, which polymer results from a condensation polymerization reaction? star A Terylene B Polyethene C Polyvinyl chloride D 1,2- ethanediol T5 Chapter 4.1 Polymer
20 What makes vulcanized rubber more elastic and heat resistant than unvulcanized rubber? star A The formation of sulfur crosslinks reduces the single covalent bonds between carbons in vulcanized rubber B The formation of sulfur crosslinks reduces the double covalent bonds between carbons in vulcanized rubber C The formation of sulfur crosslinks reduces the double covalent bond between carbon and sulfur atoms in vulcanized rubber D The formation of sulfur crosslinks reduces the double covalent bond between sulfur in vulcanized rubber T5 Chapter 4.2 Natural Rubber
21 Diagram 21 shows the structure of a soap ion. Based on Diagram, which of the following statements is true? star A Parts X and Y are soluble in water B Parts X and Y are soluble in grease C Parts X is soluble in grease and part Y are soluble in water D Parts X is soluble in water and part Y is soluble in grease T5 Chapter 5.2 Cleaning Agents
22 Diagram 22 shows a type of product from a factory. Which of the following statements best explains how the application of nanotechnology can enhance the quality of the product? star A Make a product with anti-wrinkles property B Ensure a product that is easily stretchable C Manufacture a product that has more neat stitching D Produce a product with variety of more attractive colours T5 Chapter 5.5 Application of Nanotechnology in Industry
23 Figure 23 shows a lorry carrying bauxite to the factory to extract aluminum from its ore. The following equation represents the reaction extraction of aluminium. 2Al_2O_3 -> 4Al + 3O_2 What is the mass of aluminium extracted? [Relative atomic mass: O = 16, Al = 27;1 tonne = 1000 kg] star A 235 kg B 264 kg C 529 kg D 1058 kg T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation T5 Chapter 1.5 Extraction of Metal from Its Ore
24 Diagram 24 show the percentage of mass composition of fertiliser R. Fertiliser R is produced from the reaction between HX acid and ammonia gas. What is the mass of ammonia gas needed to produce 17.665 g of fertiliser R? [Relative atomic mass: H =1, N= 14, X = 35.5] star A 1.51 g B 1.60 g C 5.61 g D 5.96 g T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation
25 Table 25 shows melting point and boiling point of substances J, K, L and M. | Substances | Melting point (°C) | Boiling point (°C) | | J | -101.0 | - 35.0 | | K | - 94.0 | 65.0 | | L | 17.8 | 290.0 | | M | 97.8 | 883.0 | Which substance that will change from liquid to solid when placed in the freezer at temperature 2.0°C? star A J B K C L D M T4 Chapter 2.1 Basic Concepts of Matter
26 Table 26 shows three elements and their electron arrangement respectively. The letters used are not the actual symbol of the elements. | Element | Electron arrangement | | P | 2.8.1 | | Q | 2.8.4 | | R | 2.8.7 | Which of the following is correct about the three elements according to the sequence, P, Q and R? star A Atomic radius decreases B Melting point increases C Metallic properties increases D Electronegativity decreases T4 Chapter 4.6 Elements in Period 3
27 Diagram 27 shows the position of element of T and U in the Periodic Table of Element. Which of the following is the formula of compound formed when element T reacts with element U? star A TU_2 B T_2U C T_2U_3 D T_3U_2 T4 Chapter 3.3 Chemical Formula
28 How much is the pH value of a solution of potassium hydroxide, KOH that contains a concentration of hydroxide ions, OH- 0.1 mol dm^-3? star A 14 B 13 C 10 D 1 T4 Chapter 6.2 pH Value
29 Salt X decomposes when heated strongly. Brown gas is liberated and changes the color of the moist blue litmus paper to red. Heating residue is yellow when hot and white when cool. What is salt X? star A ZnCO_3 B PbCO_3 C Pb(NO_3)_2 D Zn(NO_3)_2 T4 Chapter 6.10 Effect of Heat on Salts
30 Diagram 30 shows the graph of gas volume against time for two experiments, I and II. In experiment set I, 5.0 g of zinc lumps react with 25.00 cm^3 of ethanoic acid at room temperature and pressure. What changes should be made to the reactants in experiment set II? star A Increase the size of zinc B Add nickel as a catalyst C Increase the volume of ethanoic acid D Replace ethanoic acid with hydrochloric acid T4 Chapter 7.2 Factors Affecting Rate of Reactions
31 Table 31 shows the volume of gas that accumulates when magnesium carbonate reacts with sulfuric acid. | Time(minute) | 0.0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | | Volume of gas (cm^3) | 0.0 | 25.0 | 40.0 | 51.0 | 58.0 | 63.0 | 68.0 | 70.0 | 70.0 | What is the average rate of reaction in the first two minutes? star A 29 cm^3minute^-1 B 20 cm^3minute^-1 C 18 cm^3minute^-1 D 17.5 cm^3minute^-1 T4 Chapter 7.1 Determining Rate of Reaction
32 Diagram 32 shows the apparatus set-up for four chemical cells. | Mg^(2+)(ak) + 2e <=> Mg(p) | E°= -2.38V | Sn^(2+)(ak) + 2e <=> Sn(p) | E°= -0.14V | | Al^(3+)(ak) + 3e <=> Al (p) | E°= -1.66V | Pb^(2+)(ak) + 2e <=> Pb(p) | E°= -0.13V | | Zn^(2+)(ak) + 2e <=> Zn(p) | E°= -0.76V | Cu^(2+)(ak) + 2e <=> Cu(p) | E°= +0.34V | | Fe^(2+)(ak) + 2e <=> Fe(p) | E°= -0.44V | Ag^(+)(ak) + e <=> Ag(p) | E°= +0.80V | Which of the following gives the highest cell voltage reading? star A Set I B Set II C Set III D Set IV T5 Chapter 1.3 Voltaic Cell
33 Diagram 33 shows the change of substance M to substance L through process Z. Which of the following is correct about process Z? star A Heated at 180 °C with nickel B Steamed at 300 °C with phosphoric acid C Reacts with hydrogen chloride at room temperature D Passes through hot porcelain chips T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
34 Diagram 34 shows the setup of apparatus for the determination of heat of reaction. Which of the following statements is true? star A The process of bond breaking occurs. B The temperature increases during the reaction. C The value of \Delta H for the reaction is positive. D The energy content of the products is higher than the energy content of the reactants. T5 Chapter 3.1 Heat Change in Reactions T5 Chapter 3.2 Heat of Reaction
35 Diagram 35 shows the energy level diagram of the following chemical reaction. Which of the following statements is true? star A The heat of reaction is 70 kJ B R and S are more stabil than P and Q. C The activation energy is 200 kJ. D Heat is released when P reacts with Q to produce R and S. T4 Chapter 7.4 Collision Theory T5 Chapter 3.1 Heat Change in Reactions
36 Diagram 36 shows two different reactions of a metal. What is the mass of solid R formed when the same mass of sodium is used in reaction I and reaction II? [Relative atomic mass: Na = 23, O = 16, Cl = 35.5] star A 0.828 g B 1.656 g C 4.212 g D 8.424 g T4 Chapter 3.4 Chemical Equation
37 Diagram 37 show the decomposition reaction of lead(II) nitrate, Pb(NO_3)_2 when heated at room temperature and pressure. Which of the following is true when 0.1 mol of lead(II) nitrate, Pb(NO_3)_2 is decomposed? [Relative formula mass: PbO = 223 and 1 mol gas occupies the volume 24 dm^3 at room temperature and pressure] star A 2.23 g lead(II) oxide is formed B 2.4 dm^3 oxygen gas released C 4.46 g lead(II) oxide is formed D 4800 cm^3 nitrogen oxide gas released T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation T4 Chapter 6.10 Effect of Heat on Salts
38 Diagram 38 shows an experiment to detect the presence of carbon dioxide in a laboratory. What is the mass of reactant required if the volume of carbon dioxide gas produced is 350 cm^3? [Relative atomic mass: Zn = 65; C = 12; O = 16; Molar volume = 24 dm^3mol^-1 at room condition] star A 2.055 g B 1.825 g C 0.125 g D 0.0146 g T4 Chapter 3.2 Mole Concept
39 Diagram 39 shows the apparatus set-up for extracting metal from the ore. 2 cm³ of molten X is put into two separate test tubes and added with two reagents which is sodium hydroxide solution, NaOH and ammonia solution, NH3 separately. Table 39 shows the observation results for the above reaction. | Reagent | Observation | | Sodium hydroxide solution, NaOH | A white precipitate insoluble in sodium hydroxide solution, excess NaOH | | Ammonia solution, NH3 | No change | Molten X reacts with hydrochloric acid to form a soluble salt. What is the change in oxidation number of X. star A +3 to 0 B +2 to 0 C 0 to +2 D 0 to +3 T4 Chapter 6.11 Qualitative Analysis T5 Chapter 1.1 Oxidation and Reduction T5 Chapter 1.5 Extraction of Metal from Its Ore
40 The thermochemical equation for the complete combustion of ethanol, C2H5OH is shown below. C2H5OH + 3O2 -> 2CO2 + 3H2O ΔH = -1376 kJmol^-1 If 6.9 g of ethanol is burnt in excess oxygen, how much is the heat released? [Relative atomic mass: C = 12; H = 1, O = 16] star A 9173.3 kJ B 206.4 kJ C 198.69 kJ D 0.15 kJ T5 Chapter 3.2 Heat of Reaction