1 Diagram 1 shows part of the Periodic Table of Elements. Which letter indicates the position of a non-metallic element? star A A B B C C D D T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements
2 Which of the following has a high pH value? star A Ammonia B Ethanoic acid C Nitric acid D Potassium hydroxide solution T4 Chapter 6.2 pH Value T4 Chapter 6.3 Strength of Acids and Alkalis
3 What substance is produced when hydrocarbon burns in excess oxygen? star A Carbon dioxide and carbon monoxide B Carbon dioxide, carbon monoxide and water C Carbon dioxide and water T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
4 Figure 2 shows the chemical equation model for the reaction between hydrogen and ammonia. What type of particles are found in the product of the reaction? star A Atom B Ion C Molecule T4 Chapter 5.5 Dative Bond
5 The following is a chemical equation for a reaction carried out in the laboratory. > Palmitic acid + sodium hydroxide > Sodium palmitate + Glycerol What is the name of this reaction? star A Neutralisation B Sulphonation C Dehydration D Saponification T5 Chapter 5.2 Cleaning Agents
6 Which of the following substance is a bromine ? star A P B Q C R D S T4 Chapter 4.5 Elements in Group 17
7 Diagram 3 shows the composition of the elements found in an alloy P. What is the use of the alloy P shown in Diagram 3? star A Racing bike B Body of speed boat C Bridge reinforcement D Surgical instruments T4 Chapter 8.1 Alloy and Its Importance
8 Diagram 4 shows how a chemical bond is formed. What type of bond is shown in Diagram 4? star A Hydrogen, Ion B Covalent, Ion C Dative, Hydrogen D Covalent, Dative T4 Chapter 5.3 Covalent Bond T4 Chapter 5.5 Dative Bond
9 Diagram 5 shows the chemical equation for the conversion of saturated fat to unsaturated fat. What is the name of the reaction, substance X and substance Y star A Substitution, Hydrogen, Ultra violet B Hydrogenation, Hydrogen, Nickel C Halogenation, Halogen, Platinum D Hydration, Water, Sulphuric acid T5 Chapter 5.1 Oils and Fats
10 Diagram 6 shows the arrangement of the apparatus used to find the empirical formula for a metal oxide of X. Which of the following is possible for oxide X? I. Zinc oxide II. Magnesium oxide III. Copper (II) oxide IV. Lead (II) oxide star A I and II B I and III C II and IV D III and IV T4 Chapter 3.3 Chemical Formula
11 Which hydrocarbon has 5 carbon atoms in its molecule? I. 2-methylpentane II. 3-methylbut-1-ene III. 3-methylpent-1-ene IV. 2,2-dimethylpropane star A I and II B I and III C II and IV D III and IV T5 Chapter 2.4 Isomers and Naming Based on IUPAC Nomenclature
12 Which atom is the most electronegative? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 4.5 Elements in Group 17
13 Table 1 shows information for isotopes of magnesium atoms What is value of X? [Relative atomic mass Mg=24] star A 22.1 B 23.1 C 24.1 D 25.1 T4 Chapter 2.4 Isotopes and Its Uses
14 Which of the following is a redox reaction? star A Zinc oxide + carbon B Copper (II) oxide + nitric acid C Copper (II) sulphate + sodium hydroxide solution D Hydrochloric acid + sodium hydroxide solution T5 Chapter 1.1 Oxidation and Reduction
15 Which of the following correctly shows the type of polymer and its characteristics? star A Elastomer polymers, cannot be remoulded after heating. B Thermosetting polymers, can be stretched and can return to their original shape when released C Thermoplastic polymers, Can be repeatedly remoulded upon heating and can be recycled T5 Chapter 4.1 Polymer
16 Which of the following is an unsaturated hydrocarbon? star A C4H6 B C4H10 C C4H10O D C4H9O2 T5 Chapter 2.1 Types of Carbon Compound
17 Diagram 7 shows the change in temperature when anhydrous copper (II) sulphate powder is dissolved in distilled water. What type of reaction takes place in Diagram 7? star A Redoxs B Endothermic C Displacement D Exothermic T5 Chapter 3.1 Heat Change in Reactions
18 Diagram 8 shows the observation of an experiment that has been carried out by a student in the laboratory. What is the colour of precipitate X? star A White B Grey C Brown D Yellow T4 Chapter 6.11 Qualitative Analysis
19 The following equations represents redox reaction? What is the reducing agent for each reaction? star A I_2O_5, SO_2 B I_2O_5, H_2S C CO, H_2S D CO, SO_2 T5 Chapter 1.1 Oxidation and Reduction
20 Which chemical formula is correctly named according to the IUPAC nomenclature system? star A SO_3, Sulphur trioxide B MgO, Magnesium dioxide C Fe_2O_3, Iron (II) oxide D Cu_2O, Copper (II) oxide T4 Chapter 3.3 Chemical Formula
21 Which of the following reactions produce artificial food flavors? I. C_3H_7OH + 2[O] -> C_2H_5COOH + H_2O II. C_2H_5OH + C_3H_6O_2 -> C_2H_5COOC_2H_5 + H_2O III. CH_3COOH + NaOH -> CH_3COONa + H_2O IV. C_2H_5COOH + C_3H_7OH -> C_2H_5COOC_3H_7 + H_2O star A I and II B I and III C II and IV D III and IV T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
22 What is the function of steel in reinforced concrete? star A Matrix substance B Strengthening substance C Composite substance T4 Chapter 8.4 Composite Materials and Its Importance
23 Diagram 9 shows the structural formula of compound X What is the relative molecular mass for the empirical formulae of the compound X? [Relative atomic mass : H=1, C=12, O=16] star A 86 B 88 C 102 D 172 T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass T4 Chapter 3.3 Chemical Formula
24 Which of the following explains why the pH of 1.0 mol dm-³ of ethanoic acid is higher than 1.0 mol dm-³ of hydrochloric acid? star A Ethanoic acid dissolves completely in water B Degree of ionisation of ethanoic acid is higher C Concentration of hydrogen ion in hydrochloric acid is higher D Number of hydrogen ion per molecule in hydrochloric acid is lower T4 Chapter 6.3 Strength of Acids and Alkalis
25 Diagram 10 shows a diagram of bond breaking and formation in a chemical reaction. What is the value of Q star A - 185 kJ mol^-1 B + 185 kJ mol^-1 C -247 kJ mol^-1 D + 247 kJ mol^-1 T5 Chapter 3.1 Heat Change in Reactions
26 Diagram 11 shows the structural formula of two cleaning agents X and Y. Which of the following is true about cleaning agent X or cleaning agent Y? star A Washing agent Y forms a insoluble salt in hard water B Washing agent Y washes effectively in acidic water C Washing agent X washes effectively in hard water D Washing agent X washes effectively in acidic and alkaline water. T5 Chapter 5.2 Cleaning Agents
27 The following are the chemical formulas for compounds X oxide and X chloride. In which group is element X in the Periodic Table of Elements? star A Inert gas B Halogen C Alkali metal D Transition elements T4 Chapter 4.4 Elements in Group 1
28 Which of the following can form hydrogen bonds with water? star A Ethanol B Ethane C Naphthalene T4 Chapter 5.4 Hydrogen Bond
29 Diagram 11 shows two test that wer carried out on two fifferent types of salt. What is X ? star A Calcium B Lead C Copper D Silver T4 Chapter 6.11 Qualitative Analysis
30 Diagram 12 shows the observation for the reaction of displacement reaction. Which statement best describes the observation? star A Copper undergoes oxidation B Concentration of ion X increases C Ion X gains the electron D Copper atoms are formed T5 Chapter 1.1 Oxidation and Reduction
31 In a reaction, effective collisions between the reacting particles must occur for the reaction to occur. What conditions are necessary for effective collision to occur? I. The right amount of reactants II. Correct collision orientation III. Small size of reactant IV. Produces energy beyond the activation energy star A I and II B I and III C II and IV D III and IV T4 Chapter 7.4 Collision Theory
32 Diagram 13 shows the changes that occur in a simple chemical cell. Which statement is true about the changes in Diagram 13? star A P is a positive terminal B Electron flow from P to Q C E° value of P is more negative than Q D P can displaced Q from the electrolyte T5 Chapter 1.3 Voltaic Cell
33 Diagram 14 shows the steps for the preparation of dissolved salt. What is the value of X? [Relative atomic mass : C=12, O=16, Zn=65] star A 3.125 g B 3.25 g C 4.25 g D 4.375 g T4 Chapter 3.4 Chemical Equation T4 Chapter 6.5 Concentration of Aqueous Solution T4 Chapter 6.9 Preparation of Salts
34 Diagram 15 shows the observations of two experiments carried out on compound X. Which of the following can explain the situation in Diagram 15. star A Substance X is a covalent compound B In a solid, the molecules of substance X are not free to move C In the solution state, the ions of substance X can move freely D In the state of solution, the free electrons move to form a sea of electrons that conduct an electric current T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
35 Diagram 16 shows the observation of an experiment to study the effect of metal Q and metal R on the corrosion of iron What are Q metals and R metals? star A Copper, Silver B Silver, Zinc C Zinc, Copper D Magnesium, Zinc T5 Chapter 1.6 Rusting
36 Which of the following carbon compounds will produce the most soot when burned in air? [Relative atomic mass : H=1, C=12, O=16] star A Pentane B Pentena C Pentyne D Pentanol T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
37 Diagram 17 shows the burette readings used to collect gas X in a reaction. Based on Diagram 17, what is the average rate of reaction for the reaction. star A 0.33 cm^3 s^-1 B 0.42 cm^3 s^-1 C 0.75 cm^3 s^-1 D 0.82 cm^3 s^-1 T4 Chapter 7.1 Determining Rate of Reaction
38 Table 2 shows the heat changes for two neutralization reactions that have been carried out in the laboratory. Which is true about X and Y? star A X = Y B X = 2Y C 2X = Y T5 Chapter 3.1 Heat Change in Reactions T5 Chapter 3.2 Heat of Reaction
39 Which of the following chemical equations is correct for the decomposition of lead (II) nitrate when heated strongly? star A Pb(NO3)2 → PbO + NO2 + O2 B Pb(NO3)2 → PbO + 2NO2 + O3 C 2Pb(NO3)2 → 2PbO + 4NO2 + O2 D Pb(NO3)2 → 2PbO + NO2 + 2O2 T4 Chapter 6.10 Effect of Heat on Salts
40 Diagram 18 shows the observation when hydrochloric acid is added to 25 cm³ of 0.1 mol dm⁻³ of sodium hydroxide solution which is dripped with phenolphthalein indicator. What is the pH value of colourless solution of X star A 0 B 1 C 7 D 13 T4 Chapter 6.7 Neutralisation