1 Psychiatric patients always see, hear or believe things that are not real. Which medicine is suitable to treat these patients? star A Betamethasone B Formaldehyde C Haloperidol D Aspirin T5 Chapter 5.4 Medicines and Cosmetics
2 What is the meaning of isotopes? star A Atoms of different elements that have the same number of neutrons but different number of protons. B Atoms of the same element that have different number of neutrons and protons. C Atoms of the same element that have the same number of protons but different number of neutrons. D Atoms of the same element that have the same number of neutrons but different number of electrons. T4 Chapter 2.4 Isotopes and Its Uses
3 Which of the following chemical bond is formed through the transfer of electron? star A Ionic bond B Dative bond C Metallic bond D Covalent bond T4 Chapter 5.2 Ionic Bond
4 Which of the following affects the rate of reaction? star A Volume of the products B The concentration of the products C The mass of the products D The size of the reactants T4 Chapter 7.2 Factors Affecting Rate of Reactions
5 Diagram 1 shows how Bukhari fell off his bicycle during a picnic and bruised his knee. His sister, Zara, quickly took out an emergency cold pack from the first aid kit. She added substance Z into a plastic bag of water and shook it. The bag turned cold after a few seconds and was applied to the bruise. What is substance Z used to produce the cooling effect? star A Calcium nitrate B Magnesium nitrate C Ammonium nitrate D Sodium nitrate T5 Chapter 3.3 Application of Exothermic and Endothermic Reactions in Daily Life
6 Which of the following does not occur during oxidation? star A Gain of electron B Increase in oxidation number C Gain of oxygen D Loss of hydrogen T5 Chapter 1.1 Oxidation and Reduction
7 Diagram 2 shows an accident in the laboratory involving a mercury spill. While waiting for the arrival of Fire Rescue Department, what substance should be sprinkled to cover up the spill? star A Sulphur B Sodium C Sodium chloride D Calcium carbonate T4 Chapter 1.3 Usage, Management and Handling of Apparatus and Materials
8 Table 1 shows the melting points for a few substances. | Substance | Melting point (°C) | | W | - 25 | | X | - 1.7 | | Y | 4.5 | | Z | 16.5 | Referring to Table 1, which of the following substances is solid at 5°C? star A Substance W B Substance X C Substance Y D Substance Z T4 Chapter 2.1 Basic Concepts of Matter
9 Which of the following statements is true regarding the modern Periodic Table of Elements? star A There are 18 periods in the Periodic Table of Elements. B The elements are arranged in ascending order of atomic mass. C Element with a proton number of 13 is placed in group 13. D Horizontal rows in the Periodic Table of Elements are called groups T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements
10 Which of the following substances has alkaline properties? star A Carbon dioxide B Potassium oxide C Nitrogen dioxide D Sulphur dioxide T4 Chapter 4.6 Elements in Period 3
11 Fibre glass is produced when plastic is strengthened with glass fibres. This composite material is used to make helmets, car bumpers and printed circuit boards. Which of the following is the reason glass fibres are used in the making of fibre glass? star A Resistant to corrosion B High stretching strength C Durable D High compression strength T4 Chapter 8.4 Composite Materials and Its Importance
12 The following equation shows the conversion of an organic compound. What is process X? star A Hydration B Oxidation C Dehydration D Hydrogenation T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
13 Polyethene is widely used in the production of plastic bags and beverage bottles as shown in Diagram 3. Based on its properties, what is the most accurate classification for this type of polymer? star A Thermoset B Thermoplastic C Elastomer D Natural polymer T5 Chapter 4.1 Polymer
14 Diagram 4 shows the elements R, S, T and U in the Periodic Table of Elements as well as a picture of tool X that applies the use of one of the given elements. Which element is suitable to be used in tool X? star A R B S C T D U T4 Chapter 4.6 Elements in Period 3
15 Diagram 5 shows the change in physical state of ice cubes. What is process X? star A Boiling B Melting C Deposition D Freezing T4 Chapter 2.1 Basic Concepts of Matter
16 Which of the following terminology refers to chemical substances that ionizes completely in water to produce low concentration of hydrogen ions? star A Strong alkali B Strong acid C Weak alkali D Weak acid T4 Chapter 6.3 Strength of Acids and Alkalis
17 Silicon dioxide is the main ingredient for all types of glasses. Which glass is only made up of silica? star A Borosilicate glass B Lead crystal glass C Fused silica glass D Soda-lime glass T4 Chapter 8.2 Composition of Glass and Its Uses
18 Which of the following substances is a hydrocarbon? star A Pentanol B Ethyl ethanoate C Methanoic acid D 2-methylbutane T5 Chapter 2.1 Types of Carbon Compound
19 Diagram 6 shows Raina walking to the school in the morning during heavy rain. She wears a waterproof raincoat that keeps her dry. The raincoat is made from a durable synthetic polymer X. Which of the following is the monomer of polymer X? star A H O | | C = C | | H H B H N | | C = C | | H H C H H | | C = C | | H H D H Cl | | C = C | | H H T5 Chapter 4.1 Polymer
20 Diagram 7 shows the Lewis structure of a water molecule. What is the maximum number of hydrogen bonds that can be formed by a water molecule? star A 1 B 2 C 3 D 4 T4 Chapter 5.4 Hydrogen Bond
21 Table 2 shows a Periodic Table of Element with four elements represented by letters W, X, Y and Z. Which of these elements has an electron arrangement of noble gas? | Element | Proton number | Nucleon number | | W | 6 | 12 | | X | 10 | 20 | | Y | 12 | 24 | | Z | 17 | 35 | star A W B X C Y D Z T4 Chapter 4.3 Elements in Group 18
22 The following ionic equation represents a redox reaction. Zn + Cu^2+ -> Zn^2+ + Cu Which statement is correct? star A Copper(II) ion is oxidized B Zinc atom release electrons C Copper atom is an oxidizing agent D The oxidation number of zinc decrease T5 Chapter 1.1 Oxidation and Reduction
23 Which of the following is a fast reaction? I Rusting of iron II Combustion of gases III Matchstick ignition IV Fermentation star A I and II B II and III C I and IV D III and IV T4 Chapter 7.1 Determining Rate of Reaction
24 Formula of sulphate ion is SO4^2- and nitrate ion is NO3^-. If Y ion and sulphate ion formed a compound with formula YSO4, state the formula of compound formed by Y ion and nitrate ion. star A YNO3 B Y2NO C Y2NO3 D Y(NO3)2 T4 Chapter 3.3 Chemical Formula
25 Graphene is one of the carbon allotropes, other than diamond and graphite, but has different characteristics from the rest. Which of the following is true about graphene? star A Elastic B Opaque C Strong but brittle D Poor conductor of heat and electricity T5 Chapter 5.5 Application of Nanotechnology in Industry
26 Diagram 8 shows the type of sugar found in honey. What is the empirical formula of the sugar in diagram 8? star A CHO B C2HO C CH2O D CHO2 T4 Chapter 3.3 Chemical Formula
27 Diagram 9 shows a reaction to produce fertiliser Y. What is the percentage of nitrogen by mass in fertilizer Y? [Relative atomic mass: H=1, N=14, O=16, S=32] star A 21.21% B 35.0% C 42.9% D 66.7% T4 Chapter 3.3 Chemical Formula
28 Diagram 10 below shows the reaction between chlorine gas and hot iron wool to produce brown solid X. Calculate the mass of solid X when 100 cm³ of chlorine gas reacted with the hot iron wool. [Relative atomic mass : Fe=56, Cl=35.5. ; Molar volume of gas at room temperature = 24 dm³ mol⁻¹] star A 0.452 g B 0.451 g C 451.4 g D 451.3 g T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation T4 Chapter 4.5 Elements in Group 17
29 Diagram 11 shows the setup of the apparatus for an experiment to determine the rate of reaction between sodium thiosulphate and sulphuric acid carried out by Sara in the laboratory. Which of the following combination of conditions take the shortest time for the mark X to disappear from sight? | | Sodium thiosulphate solution | Sulphuric acid | Temperature (°C) | | | Volume (cm³) | Concentration (mol dm⁻³) | Volume (cm³) | Concentration (mol dm⁻³) | | | A | 50 | 1.0 | 10 | 1.0 | 30 | | B | 50 | 0.5 | 10 | 0.5 | 30 | | C | 50 | 0.5 | 10 | 0.5 | 40 | | D | 40 | 0.5 | 20 | 0.5 | 40 | star A A B B C C D D T4 Chapter 7.2 Factors Affecting Rate of Reactions
30 Diagram 12 shows the apparatus setup and the observations of an experiment to determine the heat of precipitation that had been carried out in a laboratory. The experiment is repeated by changing the concentration of potassium iodide solution to 1.0 mol dm^-3. What is the highest temperature change obtained? [Specific heat capacity of water = 4.2 J g^-1 °C^-1] star A 31.7 °C B 35.8 °C C 40.2 °C D 33.5 °C T5 Chapter 3.2 Heat of Reaction
31 Diagram 13 shows a process to confirm the presence of the cation in salt solution S. Which of the following cations is present in salt solution S? star A Al^3+ B Ca^2+ C Zn^2+ D Mg^2+ T4 Chapter 6.11 Qualitative Analysis
32 Excess magnesium powder is added to 25 cm³ of 0.5 mol dm⁻³ hydrochloric acid, HCl. The maximum volume of hydrogen gas, H₂ released is obtained after 120 seconds. What is the average rate of reaction in cm³s⁻¹? [Molar volume of gas at STP = 22.4 dm³mol⁻¹] star A 0.117 B 0.233 C 1.170 D 1.244 T4 Chapter 7.1 Determining Rate of Reaction
33 Natural rubber used in daily life is soft and easily degrades when exposed to heat and air. A student carried out an experiment by soaking a piece of natural rubber in a solution containing compound Y and an organic solvent. After several minutes, the rubber sheet was dried and found to be more elastic and more resistant to heat.What is compound Y? star A Ammonia B Disulphur dichloride C Ethanoic acid D Pentene T5 Chapter 4.2 Natural Rubber
34 Which of the following is the correct general formula for alkyne? star A CnH2n B CnH2n+2 C CnH2n-2 D CnH2n+1OH T5 Chapter 2.2 Homologous Series
35 Diagram 14 shows the electron arrangement in compound JL. Which elements are represented by J and L? | | J | L | | A | Lithium | Sulphur | | B | Lithium | Chlorine | | C | Beryllium | Oxygen | | D | Magnesium | Oxygen | star A A B B C C D D T4 Chapter 2.3 Atomic Structure T4 Chapter 5.1 Basics of Compound Formation
36 Diagram 15 shows Pak Ali feeling sad because his agricultural activities are not successful because the soil is not suitable. This happened because Pak Ali's farm is near to industrial factories which emit acidic gases. Which of the following substances can be used to help Pak Ali increase the fertility of the soils? star A Potassium sulphate B Ammonium nitrate C Iron(II) sulphate D Calcium hydroxide T4 Chapter 6.7 Neutralisation
37 Diagram 16 shows a structural formula of an ester. What are the reactants used to prepare this ester? star A Ethanol and ethanoic acid B Ethanol and propanoic acid C Propan-2-ol and ethanoic acid D Propan-1-ol and propanoic acid T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
38 Diagram 17 shows the apparatus setup for a simple cell. Based on Diagram 17, which of the following is true? star A Metal P is a positive terminal B Metal Q undergoes oxidation C Electrons flow from metal P to metal Q D The E° value of metal Q is more negative than metal P T5 Chapter 1.3 Voltaic Cell
39 Diagram 18 shows the process of producing compound Z. Based on Diagram 18, which of the following statement is true? star A Compound Z can dissolve in water B Compound X can burn to produce a lot of soot C Compound Y turns moist red litmus paper blue D Propanol has higher boiling point compared to compound X T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
40 Diagram 19 shows Samson conducting two experiments using zinc metal powder in Set A and magnesium metal powder in Set B, each added into copper (II) nitrate solution. After a few minutes, he observed that the temperature of the mixture in Set B increased more than in Set A. Why did Set B show a higher temperature increase? star A Magnesium reacts more actively when displacing copper ions B Magnesium undergoes a more complete displacement and releases more heat. C Magnesium is less reactive than zinc. D Magnesium releases electrons more easily than zinc. T5 Chapter 3.2 Heat of Reaction