1 Which industrial process uses iron as a catalyst? star A Manufacture of sulphuric acid B Manufactured of margarine C Manufactured of ammonia D Manufactured of nitric acid T4 Chapter 4.7 Transition Elements
2 Which of the following is not the component of soda lime glass? star A Sand B Boron oxide C Calcium carbonate D Sodium carbonate T4 Chapter 8.2 Composition of Glass and Its Uses
3 Which of the following is not additive in detergent? star A Biological enzyme B Emulsifier C Whitening agent D Fragrance T5 Chapter 5.2 Cleaning Agents
4 Which substance consists of ions? star A Carbon dioxide B Sulphur dioxide C Calcium chloride D Hydrogen chloride T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
5 Which of the following is the special characteristic of transition metals? star A Soft solid B Soluble in water C Low melting point D Form coloured ions T4 Chapter 4.7 Transition Elements
6 Diagram 1 shows the atom model of a compound. Which of the following is the property of the compound? star A Dissolves in water B Dissolve in organic solvent C High melting and boiling points D Able to conduct electricity in molten state T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
7 Which of the following is not strong acid? star A Hydrochloric acid B Nitric acid C Sulphuric acid D Phosphoric acid T4 Chapter 6.3 Strength of Acids and Alkalis
8 The following are the properties of a manufactured substance. - Hard but brittle - Transparent - Inert towards chemicals - Sensitive towards light intensity Which substance has the above properties? star A Kitchen utensils B Racing car C Spectacles D Prism T4 Chapter 8.4 Composite Materials and Its Importance
9 Diagram 2 shows the structural formula of an organic compound. What is the homologous series for the organic compound? star A Carboxylic acids B Alkanes C Alcohols D Alkenes T5 Chapter 2.2 Homologous Series
10 Diagram 3 shows the experimental set-up to determine the heat of combustion of ethanol, C2H5OH. What is appropriate for X and Y? star A Etanol Ethanol, Air Water B Air Water, Etanol Ethanol C Naftalena Naphthalene, Air Water D Air Water, Naftalena Naphthalene T5 Chapter 3.2 Heat of Reaction
11 Which of the following is not a natural polymer? star A Cellulose B Polystyrene C Polyisoprene T5 Chapter 4.1 Polymer
12 What are the chemical substances added to prevent food from becoming rancid? star A Antioxidant B Stabiliser C Dye D Thickener T5 Chapter 5.3 Food Additives
13 Who discovered neutrons? star A Neils Bohr B J. J. Thomson C James Chadwick D Ernest Rutherford T4 Chapter 2.2 The Development of the Atomic Model
14 Which of the following is the number for Avogadro's constant, N_A? star A 6.02 x 10^-24 mol^-1 B 6.02 x 10^23 mol^-1 C 6.02 x 10^24 mol^-1 D 6.02 x 10^-23 mol^-1 T4 Chapter 3.2 Mole Concept
15 What is the basic principle used in the arrangement of elements in the Periodic Table of Elements? star A Ascending nucleon number B Ascending relative atomic mass C Ascending proton number D Ascending number of electron T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements
16 Which compound is covalent compound? I Magnesium oxide, MgO II Lithium chloride, LiCl III Butane, C4H10 IV Tetrachloromethane, CCl4 star A I and II B I and IV C II and III D III and IV T4 Chapter 5.3 Covalent Bond
17 Acid which has a basicity value of 2 is star A carbonic acid. B ethanoic acid. C hydrochloric acid. D nitric acid. T4 Chapter 6.1 The Role of Water in Showing Acidic and Alkaline Properties
18 Marble chips react with hydrochloric acid to produce carbon dioxide. The equation for the reaction is as follows : CaCO3 + 2HCl -> CaCl2 + H2O + CO2 Which of the following will lower the rate of the reaction? star A Using a more dilute concentration of 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
19 Diagram 4 shows the composition of an alloy. Which of the following represents the alloy? star A Stainless steel B Duralumin C Pewter D Steel T4 Chapter 8.1 Alloy and Its Importance
20 Table 1 below shows the melting and boiling points of substances W, X, Y and Z. | Bahan Substance | Takat lebur (°C) Melting point (°C) | Takat didih (°C) Boiling point (°C) | |---|---|---| | W | -75 | -15 | | X | -20 | 97 | | Y | 35 | 147 | | Z | 5 | 120 | Which substance is a liquid at room temperature? star A X and Z B Y and Z C W only D X only T4 Chapter 2.1 Basic Concepts of Matter
21 Which of the following chemical equations is not a redox reaction? star A Ag^+ + Cl^- → AgCl B Cl_2 + S^{2-} → 2Cl^- + S C 2Fe^{3+} + Zn → 2Fe^{2+} + Zn^{2+} D Mg + Cu^{2+} → Mg^{2+} + Cu T5 Chapter 1.1 Oxidation and Reduction
22 The following molecular formula represents a carbon compound formed from the reaction between compounds X and Y. C2H5COOC3H7 What are compounds X and Y? star A CH3CH2COOH, CH3CH2OH B CH2CH2CH2CH2COOH, CH3CH2CH2OH C CH3CH2CH2COOH, CH3CH2OH D CH3CH2COOH, CH3CH2CH2OH T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
23 Based on the graph 1, calculate the average rate of reaction for this reaction. star A 7.00 cm^3 min^-1 B 10.00 cm^3 min^-1 C 6.50 cm^3 min^-1 D 6.00 cm^3 min^-1 T4 Chapter 7.1 Determining Rate of Reaction
24 Diagram 5 shows reaction between zinc powder and copper(II) sulphate solution. Which of the following explained about the reaction? star A Heat changes when 1 mol of halogen is displaced from its salt solution. B Heat changes when 1 mol of ion is produced from its metal. C Heat changes when 1 mol of metal is displaced from its salt solution. T5 Chapter 3.2 Heat of Reaction
25 Diagram 6 shows a phosphoric acid molecule. How many electrons are involved in the formation of all covalent bonds in the phosphoric acid molecule? star A 7 B 8 C 12 D 16 T4 Chapter 5.3 Covalent Bond
26 Diagram 7 shows the structural formula of rubber monomer. What is the name of the compound based on the IUPAC nomenclature? star A 3-methylbutene B 2-methylpentene C 2-methylbut-1,3-diene D 3-methylbut-1,3-diene T5 Chapter 2.4 Isomers and Naming Based on IUPAC Nomenclature
27 Which of the following products of condensation polymerisation? I II III IV star A I and II B II and III C III and IV D I and IV T5 Chapter 4.1 Polymer
28 Diagram 8 shows X treatment process. Choose the correct statement to explain the product of X? star A Wastewater consists of acrylonitrile, toluene and methylbenzene B After proper treatment, sludge can be used as fertilizers for the agriculture sector C Wastewater that has been treated can be reused for crop irrigation D Wastewater can be discharged as effluent. T5 Chapter 5.6 Application of Green Technology in Industrial Waste Management
29 Which of the following is the correct change in the property of elements across the period in the Periodic Table of Elements? star A The atomic radius increases B The number of protons in each atom increases C The number of valence electrons in each atom decreases T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements
30 Which of the following is the characteristic of hydrogen chloride gas that enables its acidic properties to be shown? star A Ionise in water B Dissolve in water C Contains hydrogen ion in its molecule D Ionise in water and produce hydrogen ion T4 Chapter 6.1 The Role of Water in Showing Acidic and Alkaline Properties
31 Diagram 9 shows an energy level diagram. Which of the following does not explain the reaction in Diagram 9? star A Exothermic reaction B Endothermic reaction C Temperature decrease D Heat absorbed T5 Chapter 3.1 Heat Change in Reactions
32 Decomposition of potassium chlorate(V), KClO3 by heat is often used to produce oxygen gas in the laboratory. 2KClO3(p/s) →2KCl(p/s) + 3O2(g) If you are a lab assistant, what are the masses of potassium chlorate(V), KClO3 needed to produce 20 dm³ of oxygen gas? [Jisim atom relatif : O = 16, Cl = 35.5, K = 39; Isipadu molar : 24 dm³ mol⁻¹ pada keadaan bilik] [Relative atomic mass : O = 16, Cl = 35.5, K = 39; Molar volume : 24 dm³ mol⁻¹ at room conditions] star A 68.1 g B 102.1 g C 50.68 g D 153.06 g T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation
33 Diagram 10 shows the structural formula of a compound. What is the name of the compound? star A Butyl pentanoate B Butyl propanoate C Pentyl pentanoate D Methyl butanoate T5 Chapter 2.2 Homologous Series
34 4.16 g of element W reacts with 1.92 g of oxygen to form metal oxide W. The empirical formula for this metal oxide is W2O3. What is the relative atomic mass of W? [Relative atomic mass : O = 16] star A 27 B 52 C 56 D 104 T4 Chapter 3.3 Chemical Formula
35 Diagram 11 shows the apparatus arrangement of a chemical cell in a redox reaction. | Mg^2+ (ak/aq) + 2e^- <=> Mg (p/s) | E° = - 2.38 V | |---|---| | Ag^2+ (ak/aq) + e^- <=> Ag (p/s) | E° = + 0.80 V | What is the voltmeter reading in Diagram 11? star A 0.96 V B 3.18 V C -1.58 V D -2.38 V T5 Chapter 1.3 Voltaic Cell
36 0.2 mol of magnesium carbonate crystals react with excess sulphuric acid. After 1.0 minute, 0.05 mol of magnesium carbonate remains as residue. What is the average rate of the rate of reaction? [Relative atomic mass: Mg = 24, C = 12, O = 16] star A 0.07 g s^-1 B 0.0025 g s^-1 C 0.28 g s^-1 D 0.21 g s^-1 T4 Chapter 7.1 Determining Rate of Reaction
37 The chemical equation below represents the chemical reaction for the preparation of a soluble salt, zinc sulphate. Zn(p/s) + H2SO4(ak/aq) → ZnSO4(ak/aq) + H2(g) 3.5 g of zinc powder is added to 50 cm^3 of 0.60 mol dm^-3 sulphuric acid. What is the mass of unreacted zinc powder? [Relative atomic mass : Zn = 65] star A 0.43 g B 0.75 g C 1.55 g D 1.95 g T4 Chapter 3.4 Chemical Equation T4 Chapter 6.5 Concentration of Aqueous Solution
38 The following thermochemical equation represents the neutralization reaction between 25 cm^3 nitric acid and 25 cm^3 potassium hydroxide solution of the same molarity. The temperature of the mixture increased by 7 °C. [Specific heat capacity of the solution = 4.2 J g^-1 °C^-1, Density of the solution = 1 g cm^-3] HNO_3 (ak) + KOH_(ak) -> KNO_3 (ak) + H_2O (ce) ΔH = -57.3 kJ mol^-1 What is the molarity of both solutions? star A 0.52 mol dm^-3 B 1.03 mol dm^-3 C 2.10 mol dm^-3 D 2.24 mol dm^-3 T4 Chapter 6.5 Concentration of Aqueous Solution T5 Chapter 3.2 Heat of Reaction
39 Ekhwan carried out an experiment of rate of reaction using granules of zinc and 50 cm³ hydrochloric acid 1.0 mol dm⁻³. Volume of hydrogen gas plots as shown as curve I in Diagram 12. Suggest substances can be replaced to obtain curve II and III. star A Excess zinc powder and 50 cm³ hydrochloric acid 1.0 mol dm⁻³, Excess zinc powder and 25 cm³ hydrochloric acid 1.0 mol dm⁻³ B Excess zinc powder and 50 cm³ sulphuric acid 1.0 mol dm⁻³, Excess zinc powder and 25 cm³ sulphuric acid 1.0 mol dm⁻³ C Excess zinc granule and 50 cm³ sulphuric acid 1.0 mol dm⁻³, Excess zinc granule and 25 cm³ sulphuric acid 1.0 mol dm⁻³ D Excess zinc powder and 50 cm³ hydrochloric acid 1.0 mol dm⁻³, Excess zinc powder and 25 cm³ hydrochloric acid with copper(II) sulphate solution 1.0 mol dm⁻³ T4 Chapter 7.2 Factors Affecting Rate of Reactions
40 Diagram 13 shows the electrolysis of hydrochloric acid with different concentrations. Which of the following statements is true about Cell I and Cell II? star A A glowing wooden splinter relights when it is put in the test tube at cathode, A pop sound is produced when a lighted wooden splinter is put near the mouth of the test tube at cathode. B Cl- and OH- ions move to the cathode., Cl- and OH- ions move to anode. C Colourless gas bubbles release at the anode and cathode., Colourless gas bubbles release at the cathode Greenish yellow gas released at anode. D Half equation at cathode : 2H+ + 2e -> H2, Half equation at anode : 4OH+ -> 2H2O + O2 + 4e T5 Chapter 1.4 Electrolytic Cell