1 Diagram 1 shows an atomic model. Which of the following scientist discovered this model? star A John Dalton B Ernest Rutherford C Neils Bohr D James Chadwick T4 Chapter 2.2 The Development of the Atomic Model
2 What is the chemical formula of tin (IV) oxide? star A SnO B Sn_2O C Sn_2O_2 D SnO_2 T4 Chapter 3.3 Chemical Formula
3 Which of the following statement is a special characteristic for transition elements? star A High density B Can conduct electricity C Solid with shiny surface D Have more than one oxidation number T4 Chapter 4.7 Transition Elements
4 Diagram 2 shows the standard representation for potassium-39. Which of the following is correct for K^+ ion? star A 19, 20, 18 B 19, 20, 19 C 18, 19, 18 D 18, 22, 19 T4 Chapter 2.3 Atomic Structure
5 Table 1 shows the position of element L and M in the Periodic Table of Elements. What is the chemical formula of the compound formed between element L and M ? star A LM B LM_2 C L_2M_3 D L_3M_2 T4 Chapter 3.3 Chemical Formula
6 What is the unit for molar volume of gas? star A g mol^-1 B dm^3 mol^-1 C mol dm^-3 D g dm^-3 T4 Chapter 3.2 Mole Concept
7 Element X is located in the same group as caesium in the Periodic Table of Elements. Which of the following statements are chemical properties of element X? I Reacts with water to produce an alkaline solution and hydrogen gas II Reacts with oxygen to produce a black solid III Reacts with chlorine gas to produce a white solid IV Reacts with sodium hydroxide solution to produce an insoluble salt star A I and III B I and IV C II and III D II and IV T4 Chapter 4.4 Elements in Group 1
8 Table 2 shows electron arrangement of four atoms. Based on information in Table 2, which pair of elements that form a compound that consists of neutral particles? star A W and X B W and Y C X and Z D Y and Z T4 Chapter 5.1 Basics of Compound Formation T4 Chapter 5.3 Covalent Bond
9 Which of the following salt does not dissolve in water but dissolve when heated to produce a colourless solution? star A Lead(II) carbonate B Lead(II) sulphate C Lead(II) iodide D Lead(II) nitrate T4 Chapter 6.9 Preparation of Salts
10 Diagram 3 shows bond X between water molecules. What is bond X ? star A Hydrogen bond B Dative bond C Covalent bond D Ionic bond T4 Chapter 5.4 Hydrogen Bond
11 Which of the following statement best describes the condition required for a reaction to occur? star A Frequency of collisions with correct orientation B Collisions with correct orientations with higher activation energy C Collisions with correct orientations and particles have energy equal to the activation energy D Total energy content of the reactants is higher than total energy content of the products T4 Chapter 7.4 Collision Theory
12 A student adds sodium chloride solution into a beaker containing a nitrate salt solution and white precipitate is formed. What are the free moving ions present when the reaction is completed? I Nitrate ion II Sodium ion III Lead(II) ion IV Chloride ion star A I and II B I and IV C II and III D III and IV T4 Chapter 6.9 Preparation of Salts
13 Which of the following can be used to make a glass pot for cooking? star A Soda-lime glass B Borosilicate glass C Lead crystal glass D Fused silica glass T4 Chapter 8.2 Composition of Glass and Its Uses
14 The following equation shows the reaction between zinc powder and 100 cm^3 of 1.0 mol dm^-3 nitric acid. Zn + 2HNO_3 → Zn(NO_3)_2 + H_2 What can be done to increase the rate of production of hydrogen gas? star A Add distilled water B Increase the mass of zinc powder C Increase the volume of nitric acid D Replace nitric acid with sulphuric acid T4 Chapter 7.2 Factors Affecting Rate of Reactions
15 Ceramics, glass, alloy and composite materials are manufactured substances in industry. Which statement is correct about these substances? star A A ceramic is made up of inorganic and non-metallic substances B An alloy is a mixture of two or more non-metals substances in a fixed composition C A composite material is a substance which has low melting point D The main component of glass is alumina T4 Chapter 8.3 Composition of Ceramics and Its Uses
16 Diagram 4 shows the apparatus set-up to determine the rate of reaction through the changes in mass. What is the measurable change to determine the rate of reaction other than changes in mass? star A Decrease in volume of hydrochloric acid B Decrease in pH value of the solution C Decrease in temperature of the solution D Increase in volume of hydrogen gas T4 Chapter 7.1 Determining Rate of Reaction
17 Ozone, O_3 is a gas consists of three oxygen atoms. What is the oxidation number of oxygen in ozone molecule? star A -6 B -2 C -1 D 0 T5 Chapter 1.1 Oxidation and Reduction
18 Diagram 5 shows the water treatment process. What is Q process? star A Precipitation B Electro-coagulation C Incineration D Composting T5 Chapter 5.6 Application of Green Technology in Industrial Waste Management
19 The following chemical equation represents a redox reaction. X_2 + 2K Br -> 2K X + Br_2 Element X is located in Group 17 in the Periodic Table of Elements. What is the expected observation when element X is replaced by iodine? star A Brown gas is produced B Brown solution remains C Colourless solution remains D Brown solution decolourised T4 Chapter 4.5 Elements in Group 17 T5 Chapter 1.1 Oxidation and Reduction
20 Which of the following properties is true about a hydrogen sulphide? star A Low, Soluble, Cannot B Low, Insoluble, Can C High, Soluble, Cannot D High, Insoluble, Can T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
21 Which of the following compound is a saturated hydrocarbon? star A C_2H_2 B C_3H_4 C C_3H_8 D C_4H_8 T5 Chapter 2.2 Homologous Series
22 Vinegar contains mixture of water and ethanoic acid, CH_3COOH. What is the molarity of vinegar with a concentration of 40 g dm^{-3}? [Molar mass of ethanoic acid, CH_3COOH = 60 g mol^{-1}] star A \frac{40}{60} mol dm^{-3} B \frac{60}{40} mol dm^{-3} C \frac{40}{60} x 1000 mol dm^{-3} D \frac{60}{40} x 1000 mol dm^{-3} T4 Chapter 6.5 Concentration of Aqueous Solution
23 Diagram 6 shows an apparatus set-up for a chemical reaction. What is the product of this reaction? star A Butan-1-ol B Butan-2-ol C Butan-1,2-diol D Butan-2,3-diol T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
24 Diagram 7 shows the energy level diagram that represents the reaction between Q and R. What is the value of the activation energy of the reaction? star A E1 kJ B (E1 - E2) kJ C (E1 - E3) kJ D (E2 - E3) kJ T4 Chapter 7.4 Collision Theory
25 The heat change when sulphuric acid reacts with magnesium to produce one mol of magnesium sulphate is 467 kJ. Which of the following energy level diagram represents the reaction? star A A Figure B B Figure C C Figure D D Figure T5 Chapter 3.1 Heat Change in Reactions
26 Diagram 8 shows the uses of product W in daily life. Which of the following is the main component in product W ? star A Styrene-butadiene rubber (SBR) B Silicone rubber C Thiokol D Neoprene T5 Chapter 4.3 Synthetic Rubber
27 What is the function of sodium tripolyphosphate in detergents? star A Make clothes smell fresh and clean B Make fabrics whiter and brighter C Change stains to colourless substance D Soften the water T5 Chapter 5.2 Cleaning Agents
28 Diagram 9 shows two types of rubber P and Q. Which of the following is true about the properties of rubber P and rubber Q? star A Soft, Hard B Low melting point, High melting point C Difficult to oxidised, Easily oxidised D Less elastic, More elastic T5 Chapter 4.2 Natural Rubber
29 Diagram 10 shows the structural formula of a triglyceride molecule. What is the molecular formula for fatty acid in the triglyceride molecule? star A C3H8O3 B C18H34O2 C C19H35O2 D C57H104O6 T5 Chapter 5.1 Oils and Fats
30 The following equation shows a complete combustion for 4.4 g of propane gas. C3H8 + 5O2 -> 3CO2 + 4H2O What is the volume of carbon dioxide gas produced at room condition? [Relative atomic mass: H = 1, C = 12; 1 mol of gas occupies 24 dm3 at room conditions] star A 0.1 dm3 B 0.3 dm3 C 2.4 dm3 D 7.2 dm3 T4 Chapter 3.2 Mole Concept
31 Which of the following chemical equations is balanced correctly? star A Fe_2O_3 + 2Al → Al_2O_3 + Fe B 2C_3H_6 + 3O_2 → 6CO_2 + 6H_2O C BaCl_2 + K_2SO_4 → BaSO_4 + 2KCl D (NH_4)_2SO_4 + NaOH → Na_2SO_4 + H_2O + 2NH_3 T4 Chapter 3.4 Chemical Equation
32 Which of the following gases contains 1.2 mol of atoms at room conditions? [1 mol of gas occupies 24 dm^3 at room conditions] star A 14.4 dm^3 carbon dioxide gas B 14.4 dm^3 nitrogen gas C 14.4 dm^3 methane gas D 14.4 dm^3 argon gas T4 Chapter 3.2 Mole Concept
33 Diagram 11 shows an apparatus set-up for a laboratory activity to prepare sodium hydroxide solution through the dilution method. What is the volume of distilled water needed to prepare 0.6 mol dm^-3 sodium hydroxide solution? star A 0.04 dm^3 B 0.06 dm^3 C 0.10 dm^3 D 0.14 dm^3 T4 Chapter 6.6 Standard Solution
34 Diagram 12 shows standard representation for atom X and atom Y. What is the relative molecular mass of the compound formed between atom X and atom Y? star A 17 B 15 C 10 D 8 T4 Chapter 2.3 Atomic Structure T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass
35 Diagram 13 shows the graph for the reaction between sulphuric acid and excess zinc powder in two sets of experiment, Set I and Set II. Which of the following changes explain the difference between Set I and Set II? star A Catalyst is added in Set I B Zinc granules is used in Set II C Higher temperature of sulphuric acid is used in Set II D Higher concentration of sulphuric acid is used in Set II T4 Chapter 7.2 Factors Affecting Rate of Reactions
36 Diagram 1.4 shows an apparatus set-up for an experiment. Given; | Tindak balas sel setengah Reaction of half-cell | E^0 (V) (298 K) | | :------------------------------------------------ | :--------------: | | I_2 + 2e \rightleftharpoons 2I^- | + 0.54 | | H_2O_2 + 2H^+ + 2e \rightleftharpoons 2H_2O | + 1.77 | Which of the following statement is correct about the reaction? star A Iodide ion is reduced to iodine molecule B Oxidation number of oxygen decreases from -1 to -2 C Hydrogen peroxide is a reducing agent D Colour of solution changes from brown to colourless T5 Chapter 1.1 Oxidation and Reduction T5 Chapter 1.2 Standard Electrode Potential
37 Diagram 15 shows the apparatus set-up for a chemical cell. Given: | Tindak balas sel setengah Reaction of half-cell | E^0 (V) (298 K) | |---|---| | Mg^2+ + 2e <=> Mg | -2.38 | | Ag^+ + e <=> Ag | +0.80 | Which of the followings show the overall ionic equation and the value of cell voltage for the chemical cell? star A Mg + Ag^+ -> Mg^2+ + Ag, +3.18 B Mg^2+ + 2Ag -> Mg + 2Ag^+, -1.58 C Mg + 2Ag^+ -> Mg^2+ + 2Ag, +3.18 D Mg + 2Ag^+ -> Mg^2+ + 2Ag, -1.58 T5 Chapter 1.2 Standard Electrode Potential T5 Chapter 1.3 Voltaic Cell
38 Diagram 16 shows the apparatus set-up for the electrolysis process of 25.0 cm^3 of copper(II) sulphate solution using a certain mass of carbon electrodes. The electrolysis process is stopped when blue copper(II) sulphate solution turns colourless. The final mass of carbon cathode is 5.6 g. What is the molarity of the copper(II) sulphate solution used? [Relative atomic mass: O = 16, S = 32, Cu = 64] star A 0.7 mol dm^-3 B 1.0 mol dm^-3 C 2.5 mol dm^-3 D 3.5 mol dm^-3 T4 Chapter 6.5 Concentration of Aqueous Solution T5 Chapter 1.4 Electrolytic Cell
39 Diagram 17 shows a flow chart for series of reactions on salt V. Which of the following is correct about W, X and Y ? star A White solid, Produce 'pop' sound with lighted wooden splinter, CaSO_4 B White solid, Produce 'pop' sound with lighted wooden splinter, BaSO_4 C Yellow solid when hot, white when cold, Ignites the glowing wooden splinter, ZnSO_4 D Brown solid when hot, yellow when cold, Ignites the glowing wooden splinter, PbSO_4 T4 Chapter 6.10 Effect of Heat on Salts
40 Diagram 18.1 shows two chemical cells with copper as cathode and their cell voltage, E^0_cell respectively. Diagram 18.2 shows two sets of experiments, Set I and Set II to compare heat of displacement of silver from silver nitrate solution by metal X and metal Y. During reactions, both containers becomes hot. Which of the following statement best describe experiments in Diagram 18.2? star A Heat of displacement for Set II is lower than Set I B Temperature rise for Set I is lower than Set II C Heat released to the surrounding for Set II is higher than Set I D The total energy content of the products is higher than the total energy content of the reactants in both sets T5 Chapter 3.1 Heat Change in Reactions T5 Chapter 3.2 Heat of Reaction