1 Which of the following atomic structure model was introduced by James Chadwick? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 2.2 The Development of the Atomic Model
2 Which of the following statement is true for 0.5 mol of oxygen gas? [Relative atomic mass: O = 16] [Avogadro constant = 6.02 x 10^23 mol^-1] [Molar volume of gas at room conditions = 24 dm^3 mol^-1] star A Relative molecular mass is 16 B The number of molecule is 6.02 x 10^23 C Occupies a volume of 24 cm^3 at room condition D The number of atom is same as one mole of helium T4 Chapter 3.2 Mole Concept
3 Diagram 1 shows gas X given to a patient as an anesthesia. What is gas X? star A Neon B Helium C Radon D Xenon T4 Chapter 4.3 Elements in Group 18
4 Why the reactivity of elements in Group 1 increases when going down the group? star A The boiling point decreases B Density of element increases C The number of electrons increase D The attraction force of nucleus towards valence electron becomes weaker T4 Chapter 4.4 Elements in Group 1
5 Which of the following shows the Lewis structure of hydrogen chloride molecule? [Proton number, H = 1, Cl = 17] star A A Figure B B Figure C C Figure T4 Chapter 5.3 Covalent Bond
6 Which of the following substances can conduct electricity at room temperature? star A Copper B Glucose C Silicon dioxide D Sodium chloride T4 Chapter 5.6 Metallic Bond
7 Diagram 2 shows a gas test for a reaction. What is the gas produced? star A Chlorine B Oxygen C Hydrogen D Carbon dioxide T4 Chapter 6.10 Effect of Heat on Salts
8 The following chemical equation shows a reaction. Na2S2O3 + 2HCl → 2NaCl + SO2 + H2O + S What is the observable and measurable changes for the reaction? star A Formation of sulphur precipitate B Decrease in concentration of hydrochloric acid C Increase in the mass of sodium thiosulphate D Decrease in the volume of sulphur dioxide T4 Chapter 7.2 Factors Affecting Rate of Reactions
9 Diagram 3 shows equipments made from an alloy. Which of the following is the correct match about the alloy? star A Copper | Tin B Iron | Chromium, nickel and carbon C Tin | Antimony and copper D Aluminium | Copper, magnesium and manganese T4 Chapter 8.1 Alloy and Its Importance
10 Which of the following is true about oxidation reaction? star A Gain of electrons B Loss of oxygen C Gain of hydrogen D Oxidation number increases T5 Chapter 1.1 Oxidation and Reduction
11 Which of the following statement is correct about petroleum cracking process? star A Use catalyst B Occurs at low temperature and pressure C Use to produce long chain hydrocarbon D Separation of petroleum compounds is based on difference in boiling point T5 Chapter 2.1 Types of Carbon Compound
12 Diagram 4 shows a structural formula of a compound. What is the homologous series of the compound? star A Ester B Alkene C Alcohol D Carboxylic acid T5 Chapter 2.2 Homologous Series
13 Which of the following substances absorb heat when dissolves in water? star A Sulphuric acid B Potassium hydroxide C Sodium thiosulphate D Calcium oxide T5 Chapter 3.1 Heat Change in Reactions
14 Which of the following is true about natural polymer? star A Sucrose | Starch B Glucose | Cellulose C Isoprene | Protein D Amino acid | Natural rubber T5 Chapter 4.1 Polymer
15 What is the side effect of betamethasone valerate used in cosmetics? star A Causes damage to the kidneys and nervous system B Hypersensitive skin C Redness and peeling skin D Skin irritation and changes to skin pigmentation T5 Chapter 5.4 Medicines and Cosmetics
16 The information for element Z is as follows. Electron arrangement of Z^3+ ion is 2.8 Nucleon number of atom Z is 27 Based on the information, which is the atomic structure for element Z? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 2.3 Atomic Structure
17 Diagram 5 shows comparison of mass between iron atom with nitrogen atom. Which of the following can replace nitrogen, N atom? [Relative atomic mass: Li = 7, N = 14, Mg = 24, Si = 28, S = 32] I 2 silicon atoms II 3 magnesium atoms III 4 sulphur atoms IV 8 lithium atoms star A I and II B I and IV C II and III D III and IV T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass
18 Diagram 6 shows part of the Periodic Table of Elements consisting element P, Q, R, S and T. Based on Diagram 6, what is the arrangement of atomic size in ascending order for elements P, Q, R, S and T? star A Q, P, T, S, R B R, S, T, P, Q C P, Q, R, S, T D T, S, R, Q, P T4 Chapter 4.6 Elements in Period 3
19 Diagram 7 shows the electron arrangement of atom X and Y. Atom X and Y combine to form a compound. What is the type of bond and chemical formula of the compound? star A Ionic | XY B Ionic | XY_2 C Covalent | XY_2 D Covalent | XY T4 Chapter 5.1 Basics of Compound Formation
20 Toothpaste can be used to treat ant bite. What is one of the chemical substance that can be found in the ant bite? star A Sulphuric acid B Sodium nitrate C Methanoic acid D Sodium hydroxide T4 Chapter 6.7 Neutralisation
21 Diagram 8 shows an experiment conducted by a student. What is the observation for the experiment? star A Green solution turns brown B No changes occur C Brown solution turns green D Colourless solution turns brown T5 Chapter 1.1 Oxidation and Reduction
22 Diagram 9 shows the graph for the reaction between excess zinc powder with dilute sulphuric acid. The rate of reaction at time t is zero. Which of the following explains the rate of reaction at time t? star A Time taken for reaction increases B All acid has reacted C Volume of gas remains constant D All zinc powder has reacted T4 Chapter 7.1 Determining Rate of Reaction
23 Diagram 10 shows a dental implant used to replace missing teeth along with the characteristics of the implant. Which of the following ceramic is the most suitable to produce an implant as in Diagram 10? star A Silicon carbide B Alumina C Zirconia D Titanium carbide T4 Chapter 8.3 Composition of Ceramics and Its Uses
24 Diagram 11 shows a blast furnace used in the extraction of iron from its ore through reduction by carbon. The following chemical equation shows one of the reactions in the blast furnace. Fe2O3 + 3CO → 2Fe + 3CO2 Which zone does the reaction occurs? star A Zone 1 B Zone 2 C Zone 3 T5 Chapter 1.5 Extraction of Metal from Its Ore
25 Diagram 12 shows the use of magnesium blocks on the steel pillars of an oil rig to prevent rusting. How the magnesium block protects the steel pillars of an oil rig from rusting? star A Magnesium block is easier to undergo oxidation reaction B Magnesium block is easier to react with steel pillars C Magnesium block is an oxidising agent D Magnesium block prevents the steel pillars from in contact with water and oxygen T5 Chapter 1.6 Rusting
26 What is the product formed when propene gas reacts with steam? star A A Figure B B Figure C C Figure D D Figure T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
27 Diagram 13 shows the apparatus set-up for the reaction between butan-1-ol and acidified potassium dichromate(VI) solution to produce compound R. What is the molecular formula for compound R? star A C4H9OH B C4H8(OH)2 C C3H7COOH D C4H9COOH T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
28 Diagram 14 shows two chemical reactions. Which of the following is correct about reaction I and reaction II? star A Releases heat to surrounding | Absorbs heat from surrounding B Container becomes hot | Container becomes cold C Total energy content of reactant is lower than product | Total energy content of reactant is higher than product D Temperature of surrounding increases | Temperature of surrounding decreases T5 Chapter 3.1 Heat Change in Reactions
29 Diagram 15 shows structure of a polymer. Which of the following is the monomer for this polymer? star A CH3-CH=CH-CH3 B CH2=CH-C=CH2 CH3 C CH3-CH=C-CH3 CH3 D CH3-C=CH2 CH3 T5 Chapter 4.2 Natural Rubber
30 Diagram 16 shows a type of food containing additives X. Which of the following pairs are correct about additive X? star A Triphenyl | Dyes B Propyl ethanoate | Flavourings C Sodium nitrite | Preservatives D Ascorbic acid | Antioxidants T5 Chapter 5.3 Food Additives
31 Diagram 17 shows the structural formula for acetamide molecule. What is the number of carbon atoms in 14.75 g acetamide? [Relative atomic mass: H = 1, C = 12, N = 14, O = 16] [Avogadro constant = 6.02 x 10^23 mol^-1] star A 1.5 x 10^23 B 3.0 x 10^23 C 1.2 x 10^24 D 1.4 x 10^24 T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass T4 Chapter 3.2 Mole Concept T4 Chapter 3.3 Chemical Formula
32 Diagram 18 shows an electric kettle that is frequently used by Ali. After several years, a white layer formed on the heating coil inside the electric kettle. What are the substance that Ali can use to remove the white layer? I Vinegar II Baking powder III Soap IV Lemon star A I and II B I and IV C II and III D III and IV T4 Chapter 6.4 Chemical Properties of Acids and Alkalis
33 Table 1 shows the information for element L and M. Which of the following represent chemical equation for the reaction between element L and M? star A L + M → LM B L + 2M → LM_2 C L_2 + M → L_2M D 2L + M_2 → 2LM T4 Chapter 3.4 Chemical Equation
34 Diagram 19 shows steps to prepare 500 cm³ of 0.1 mol dm⁻³ Solution II from Solution I by dilution method. What is the value of x and y? [Relative atomic mass: H = 1, O = 16, Na = 23] star A 2.0 | 0.2 B 8.0 | 0.8 C 10.0 | 1.0 D 44.0 | 4.0 T4 Chapter 6.6 Standard Solution
35 Table 2 shows the volume of carbon dioxide, CO2 gas collected in the reaction between limestone powder and dilute hydrochloric acid. What is the average rate of reaction in the second minute? star A 0.260 cm³ s⁻¹ B 0.306 cm³ s⁻¹ C 0.357 cm³ s⁻¹ D 0.368 cm³ s⁻¹ T4 Chapter 7.1 Determining Rate of Reaction
36 Diagram 20 shows the electrolysis of 1.0 mol dm⁻³ copper(II) chloride, CuCl2 solution. Given the standard electrode potential value: What is the half equation for the reactions at anode and cathode? star A 2Cl⁻ → Cl2 + 2e⁻ | Cu²⁺ + 2e⁻ → Cu B Cl2 + 2e⁻ → 2Cl⁻ | 2H⁺ + 2e⁻ → H2 C O2 + 2H2O + 4e⁻ → 4OH⁻ | H2 → 2H⁺ + 2e⁻ D 4OH⁻ → O2 + 2H2O + 4e⁻ | Cu²⁺ + 2e⁻ → Cu T5 Chapter 1.4 Electrolytic Cell
37 Diagram 21 shows several reactions involving propanol. Which of the following reagents are use in the confirmatory test of compound J, K and L? star A Acidified potassium manganate(VII) solution | Ethanol | Lighted wooden splinter B Calcium carbonate | Bromine water | Limewater C Bromine water | Calcium carbonate | Limewater D Ethanol | Calcium carbonate | Lighted wooden splinter T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
38 Diagram 22 shows an experiment to determine the heat of combustion of ethanol, C2H5OH. The heat combustion of ethanol is -1371 kJ mol^-1. What is the highest temperature of water when 1.15 g of ethanol burnt completely? [Relative atomic mass, H = 1, C = 12, O = 16] [Specific heat capacity of water = 4.2 J g^-1 °C^-1] star A 36.0 °C B 53.0 °C C 55.0 °C D 59.0 °C T5 Chapter 3.2 Heat of Reaction
39 Diagram 23 shows the observations of confirmatory test of cation and anion for salt solution X. What is salt X? star A Zinc chloride B Calcium nitrate C Aluminium sulphate D Magnesium chloride T4 Chapter 6.11 Qualitative Analysis
40 Diagram 24 shows the results for neutralisation reactions of acid X, acid Y and acid Z with 50 cm³ of sodium hydroxide, NaOH solution at different concentration. Which of the following is true about acid X, acid Y and acid Z? star A Sulphuric acid | Monoprotic | Weak B Hydrochloric acid | Diprotic | Strong C Phosphoric acid | Monoprotic | Weak D Nitric acid | Diprotic | Strong T4 Chapter 6.1 The Role of Water in Showing Acidic and Alkaline Properties T4 Chapter 6.3 Strength of Acids and Alkalis