1 Which substance is an element and exist as molecule? star A Helium B Hydrogen C Ammonia D Magnesium T4 Chapter 3.3 Chemical Formula
2 Ahmad uses colorful lights to attract customers to his restaurant. What is the suitable material to fill in the light? star A Helium B Argon C Neon D Krypton T4 Chapter 4.3 Elements in Group 18
3 How covalent bond is formed? star A Through the transfer of electrons between metal atoms and non-metal atoms B Through electron sharing between non-metal atoms C Through electron transfer between non-metal atoms D Through electron sharing between metal atoms and non-metal atoms T4 Chapter 5.3 Covalent Bond
4 Fast reaction example is star A Fermentation B Photosynthesis C Fruit decaying D Double decomposition T4 Chapter 7.1 Determining Rate of Reaction
5 What is the composition of fused silica glass? star A Boron oxide B Alumina C Silica D Soda T4 Chapter 8.2 Composition of Glass and Its Uses
6 Which of the following substance undergoes oxidation? star A Chlorine B Potassium iodide C Acidified potassium manganate(VII) solution D Iron(III) chloride T5 Chapter 1.1 Oxidation and Reduction
7 Which of the following is the example of endothermic reaction? star A Ethanol burns in excess oxygen B Solid ammonium nitrate is dissolved in distilled water C Solid sodium hydroxide is dissolved in distilled water D Dilute hydrochloric acid is added into potassium hydroxide solution T5 Chapter 3.1 Heat Change in Reactions
8 What is the characteristic of synthetic polymer? star A Chemically reactive B Durable and strong C Strong and brittle D Good conductor of heat T5 Chapter 4.1 Polymer
9 What is the chemical substance added to prevent cosmetic products from spoiling? star A Lecithin B Sodium lactate C Paraben D Iron(III) oxide T5 Chapter 5.4 Medicines and Cosmetics
10 Which of the following is an ionic compound? star A MgCl_2 B CO_2 C NH_3 T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
11 The relative atomic mass of an element is the number of times the mass of one... star A atom is greater than the mass of one carbon-12 atom B atom is greater than the mass of one oxygen atom C atom is greater than \frac{1}{12} of the mass of one carbon-12 atom D molecule is greater than \frac{1}{12} of the mass of one carbon-12 atom T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass
12 ### Diagram 1 | Zn^2+ + 2e^- \rightleftharpoons Zn | - 0.76 V | | Cu^2+ + 2e^- \rightleftharpoons Cu | + 0.34 V | Based on Diagram 1, which is a stronger oxidising agent? star A Cu B Cu^2+ C Zn D Zn^2+ T5 Chapter 1.2 Standard Electrode Potential
13 Which of the following process involves only non-hydrocarbon compound? star A Esterification B Hydration C Oxidation D Hydrogenation T5 Chapter 2.1 Types of Carbon Compound
14 Which application of nanotechnology is correctly matched? star A Energy and electricity: High conductivity wiring system B Medical: Antimicrobial food packaging C Agriculture: More effective pesticide D Semiconductors and electronic: Long lasting batteries T5 Chapter 5.5 Application of Nanotechnology in Industry
15 Krypton is used in laser for eye retina treatment. What is the state of matter of krypton? star A Gas B Liquid C Solid T4 Chapter 4.3 Elements in Group 18
16 ### Diagram 2 What are solution A, solution B and salt K? star A Lead(II) sulphate, Potassium chloride, Lead(II) chloride B Silver nitrate, Lead(II) chloride, Silver chloride C Barium carbonate, Sulphuric acid, Barium sulphate D Lead(II) nitrate, Sodium sulphate, Lead(II) sulphate T4 Chapter 6.9 Preparation of Salts
17 ### Diagram 3 Based on the conversation, which type of glass container is the most suitable to be used by Zaid? star A Soda-lime glass B Lead crystal glass C Borosilicate glass D Fused silica glass T4 Chapter 8.2 Composition of Glass and Its Uses
18 Which of the following chemical formulae is correct? star A Li_2O B KBr_2 C Al_3Cl D MgNO_3 T4 Chapter 3.3 Chemical Formula
19 Which assumptions need to be made in determining the heat of reaction? I No heat is absorbed by the apparatus II Only a small amount of heat is lost to surrounding III The density of any aqueous solution is equal to the density of water, 1 gcm^-3 IV The specific heat of reaction of any aqueous solution is equal to the specific heat of reaction of water, 4.2 kJg^-1 °C^-1 star A I and II B I and III C II and IV D III and IV T5 Chapter 3.2 Heat of Reaction
20 ### Diagram 4 Which statement explains the formation of bonds in Diagram 4? star A Metals need to share electrons with each other B Metals need to donate their valence electrons C Electrostatic attraction force between a sea of electrons and positively charged metal ions D Electrostatic attraction force between positive ions and negative ions in metals T4 Chapter 5.6 Metallic Bond
21 ### Diagram 5 Which of the following statement is true about the alkaline solution X? star A pH value less than 7 B Ionise partially in water C Number of hydroxide ion per unit volume is high T4 Chapter 6.3 Strength of Acids and Alkalis
22 Alloys are usually harder than their pure metal. What is the factor explains this situation? star A Electrical conductivity B Density C Melting point D Atomic radius T4 Chapter 8.1 Alloy and Its Importance
23 Equation below shows a redox reaction. Mg + CuSO_4 -> Cu + MgSO_4 Based on the equation, predict the colour change of the copper(II) sulphate solution. star A blue turns colorless B blue turns brown C blue is bleached D blue does not change T5 Chapter 1.1 Oxidation and Reduction
24 ### Diagram 6 Based on Diagram 6, what is the function of the medicine? star A Treat psychosis B Relieves pain in conscious state C Kills or retards bacterial growth D Provide relief to the inflamed area T5 Chapter 5.4 Medicines and Cosmetics
25 ### Diagram 7 What is the number of protons of this particle? star A 6 B 8 C 10 D 12 T4 Chapter 2.3 Atomic Structure
26 ### Table 1 Arrange the three elements based on the descending order of proton number. star A Q,R,P B R,P,Q C P,R,Q D R,Q,P T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements
27 ### Diagram 8 Which graph best represent the above reaction? star A A Figure B B Figure C C Figure D D Figure T5 Chapter 3.1 Heat Change in Reactions
28 ### Table 2 What is the reason for this situation? star A Reaction for Set I and Set II are using strong acid B Reaction for Set I absorb more heat C Reaction for Set I is an endothermic reaction while reaction for Set II is an exothermic reaction D Reaction for Set II reabsorb heat of reaction to complete the ionization process T5 Chapter 3.1 Heat Change in Reactions
29 ### Diagram 9 What is the purpose of lifting and closing the lid quickly time to time during heating? star A To avoid the pressure in the crucible B To avoid the crucible from cracking C To avoid the white fumes from escaping D To avoid water vapour from entering the crucible T4 Chapter 3.3 Chemical Formula
30 ### Diagram 10 Which polymer is not produce through the polymerisation reaction as shown Diagram 10? star A Polyethene B Polyester C Polystyrene D Polychloroethene T5 Chapter 4.1 Polymer
31 Equation shows the reaction when ethane burnt in oxygen. C_2H_6 + \frac{7}{2} O_2 \rightarrow 2CO_2 + 3H_2O What is the volume of carbon dioxide gas produced when 1200 cm^3 of ethane gas is burnt completely in air? [1 mol of gas occupied 24 dm^3 at room condition] star A 1.40 cm^3 B 2.40 cm^3 C 1200 cm^3 D 2400 cm^3 T4 Chapter 3.2 Mole Concept
32 ### Diagram 11 Calculate the new molarity of hydrochloric acid? star A 0.25 mol dm^-3 B 0.30 mol dm^-3 C 0.75 mol dm^-3 D 0.90 mol dm^-3 T4 Chapter 6.6 Standard Solution
33 The usage of synthetic plastic such as polyethene is increasing in the packaging industry. However, these plastic are difficult to decompose and cause pollution. What is the best solution to reduce this negative impact on the environment? star A Promote the use of biodegradable plastic B Producing more plastic to meet consumer demand C Burning plastic waste to reduce its volume in landfills D Using more synthetic plastics because they are more durable T5 Chapter 4.1 Polymer
34 Metal P is a Group 1 element in Periodic Table of Elements that can react with oxygen to form oxide of P. What is the mass of metal P that react with 2.4 dm^3 oxygen gas at room conditions? [Relative atomic mass: P= 7; O=16, Molar volume of gas = 24 dm^3 mol^-1 at room condition] star A 0.7g B 1.4g C 2.8g D 8.0g T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation T4 Chapter 4.4 Elements in Group 1
35 The headman of Kampung Cendana wants to build a memorial monument made of bronze to commemorate the tragedy of the massive fire that occurred in the village 3 years ago. His proposal was not accepted by the villagers who wanted the monument to be built of iron to save costs. Which statement is the most accurate supporting headman proposal? star A Bronze does not rust and the monument will last longer B The bronze surface is shiny and makes the monument more beautiful C Bronze has higher compression strength so monument does not break easily D Bronze is highly heat resistant and does not melt easily in hot weather T4 Chapter 8.1 Alloy and Its Importance
36 ### Diagram 12 The voltage reading, Eº for the above chemical cell is +1.24 V. By referring to the standard electrode potential, Eº of the half-cell of metal X, calculate the value of the standard electrode potential of the half-cell of metal Y. X^2+ (ak/aq) + 2e \rightleftharpoons X (p/s) Eº = -0.44 V star A +0.80 V B - 0.80 V C +1.68 V D - 1.68 V T5 Chapter 1.2 Standard Electrode Potential T5 Chapter 1.3 Voltaic Cell
37 ### Diagram 13 Which of the following is correct for the compound formed? star A Ionic compound, Y_2Z, 83.5 B Covalent compound, Y_2Z, 83.5 C Covalent compound, YZ_2, 95 D Ionic compound, YZ_2, 95 T4 Chapter 3.3 Chemical Formula T4 Chapter 5.2 Ionic Bond
38 ### Diagram 14 Hydrocarbon Z burnt completely in excess oxygen to produce carbon dioxide gas and water. What is the volume of carbon dioxide gas released? [Relative atomic mass: C=12; H=1; Molar mass Z=56 g mol⁻¹; 1 mol of gas occupies 24 dm³ at room condition] star A 7.2 dm³ B 14.4 dm³ C 21.6 dm³ D 28.8 dm³ T4 Chapter 3.4 Chemical Equation
39 ### Diagram 15 Which statement is correct if volume of acid used in all experiment are the same? I Concentration of acid used in experiment R is lower than P II Temperature in experiment S is higher than R III Concentration of acid used in experiment Q is higher than R IV The temperature of the acid is the same in experiments P and Q star A I and II B I and III C II and IV D III and IV T4 Chapter 7.2 Factors Affecting Rate of Reactions
40 ### Diagram 16 Based on Diagram 16, identify S, T and U. star A Butane-2,3-diol, CH3CHBrCHBrCH3, ( H CH3 C-C CH3 H )n B CH3CHBrCHBrCH3, Butane-2,3-diol, ( H CH3 C-C CH3 H )n C Butane-2,3-diol, ( H CH3 C-C CH3 H )n, CH3CHBrCHBrCH3 D ( H CH3 C-C CH3 H )n, CH3CHBrCHBrCH3, Butane-2,3-diol T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series