1 Name the process of soap preparation. star A Esterification B Oxidation C Saponification D Sulphonation T5 Chapter 5.2 Cleaning Agents
2 What is the chemical formula of ammonium phosphate? star A NH_3PO_4 B NH_4PO_4 C (NH_3)_3PO_4 D (NH_4)_3PO_4 T4 Chapter 3.3 Chemical Formula
3 Which of the following substances is a covalent compound? star A Mercury B Silicon dioxide C Sodium thiosulphate D Lead(II) chloride T4 Chapter 5.7 Properties of Ionic Compounds and Covalent Compounds
4 Which of the following is not the unit for the rate of reaction? star A g s^-1 B kg cm^-3 C cm^3 mol^-1 D mol dm^-3 T4 Chapter 7.1 Determining Rate of Reaction
5 ### Diagram 1 | Tindak balas kimia | | Chemical reaction | | Tindak balas endotermik | Tindak balas eksotermik | | Endothermic reaction | Exothermic reaction | | X | Y | Which of the following statements is correct about X? star A Container becomes hot B Temperature of surroundings increases C Releases heat to surroundings D Example of the reaction is photosynthesis T5 Chapter 3.1 Heat Change in Reactions
6 Which of the following is a redox reaction? star A Igniting the gas stove B A reaction of acid on latex C Using cold pack to relieve muscle pain D Washing oil-stained clothes using soap T5 Chapter 1.1 Oxidation and Reduction
7 Diagram 2 shows the safety equipment in the laboratory. What is the function of the equipment? star A Extinguishing fire in the laboratory B Washing and cleaning the eye when accidents occur C Removing chemical substances, oil, dirt and microorganisms from the hands D Equipment to carry out experiments that release toxic vapours, cause combustions or produce pungent smells T4 Chapter 1.3 Usage, Management and Handling of Apparatus and Materials
8 ### Table 1 | Unsur Element | Bilangan proton Number of protons | Bilangan neutron Number of neutrons | |---|---|---| | P | 10 | 10 | | Q | 11 | 12 | | R | 19 | 20 | What is the nucleon number of atom R? star A 19 B 20 C 23 D 39 T4 Chapter 2.3 Atomic Structure
9 Diagram 3 shows the combustion of element Y with oxygen. What is element Y? star A Zinc B Lithium C Calcium D Potassium T4 Chapter 4.4 Elements in Group 1
10 The pH scale indicates the degree of acidity or alkalinity of a solution. Which of the following pH values is for strong alkaline solution? star A 13 B 10 C 8 D 2 T4 Chapter 6.2 pH Value
11 Alloy X has the following composition: | 95% Tin | | 3.5% Antimony | | 1.5% Copper | What is alloy X? star A Pewter B Brass C Duralumin D Stainless steel T4 Chapter 8.1 Alloy and Its Importance
12 What is the homologous series of methyl ethanoate? star A Ester B Alkyne C Alcohol D Carboxylic acid T5 Chapter 2.2 Homologous Series
13 Diagram 4 shows a structural formula of a monomer. Which of the following is the similarity between the monomer and its polymer? star A Molecular formula is C_2H_3Cl B Number of carbon atoms in the molecule C Have double bond between carbon atoms D Contain carbon atom, hydrogen atom and chlorine atom T5 Chapter 4.1 Polymer
14 Diagram 5 shows elements in Period 4 of the Periodic Table of elements. Which of the following is the characteristic of the elements? star A Able to show different oxidation numbers in the compounds B They are not able to form coloured compounds C Cannot conduct electricity D Have low melting point T4 Chapter 4.7 Transition Elements
15 Madam Aisyah was diagnosed with bone cancer. What isotope is used to treat Madam Aisyah? star A Phosphorus-32 B Sodium-24 C Carbon-14 D Cobalt-60 T4 Chapter 2.4 Isotopes and Its Uses
16 Which of the following is a weak alkali? star A Ammonia B Sodium hydroxide C Barium hydroxide D Potassium hydroxide T4 Chapter 6.3 Strength of Acids and Alkalis
17 Which of the following is matched correctly? | | Bahan komposit Composite material | Kegunaan Uses | |---|---|---| | A | Gentian optik Optical fibre | Topi keledar Helmet | | B | Kaca gentian Fibre glass | Jambatan Bridge | | C | Kaca fotokromik Photochromic glass | Tingkap bangunan Building window | | D | Konkrit diperkukuhkan Reinforced concrete | Kamera video Video camera | star A A B B C C D D T4 Chapter 8.4 Composite Materials and Its Importance
18 What is the catalyst used in the hydrogenation reaction of alkenes? star A Iron B Nickel C Chlorine water D Phosphoric acid T5 Chapter 5.1 Oils and Fats
19 Which substance speeds up the coagulation of latex? star A Water B Methanol C Methanoic acid D Ammonia solution T5 Chapter 4.2 Natural Rubber
20 Amni collected seashells at the beach as shown in Diagram 6. The seashells contain a natural ionic compound. What elements are contained in this ionic compound? star A Sodium, sulphur and oxygen B Calcium, carbon and oxygen C Copper, carbon and oxygen D Calcium, oxygen and hydrogen T4 Chapter 3.3 Chemical Formula
21 Diagram 7 shows the reaction between hot iron wool and chlorine gas to produce solid X. State the chemical formula of solid X. star A FeCl3 B ZnCl2 C FeCl2 D MgCl2 T4 Chapter 4.5 Elements in Group 17
22 Diagram 8 shows a chemical cell with the different electrode potential values. Given the following electrode potential values. Ag+ + e → Ag E°= +0.80 V Fe2+ + 2e → Fe E°= -0.40 V What is the cell notation of the voltaic cell? star A Fe(s) | Fe2+(aq) || Ag+(aq) | Ag(s) B Ag(s) | Ag+ (aq) || Fe2+ (aq) | Fe(s) C Ag+(aq) | Ag(s) || Fe(s) | Fe2+(aq) D Fe (s) | Fe2+(aq) || Ag(s) | Ag+ (aq) T5 Chapter 1.3 Voltaic Cell
23 The following equation represents a reaction between hydrochloric acid and zinc. 2HCl + Zn -> ZnCl_2 + H_2 Which of the following will increase the rate of reaction? star A Use zinc powder B Reduce the mass of zinc C Reduce the volume of hydrochloric acid D Reduce the concentration of hydrochloric acid T4 Chapter 7.2 Factors Affecting Rate of Reactions
24 Which of the following contains 6.02 x 10^23 atoms? star A 1 mol of water B 1 mol of argon C 1 mol of hydrogen gas D 1 mol of sulphur dioxide T4 Chapter 3.2 Mole Concept
25 What is the main purpose of leachate treatment in solid waste disposal process? I To produce sludge that can be used as fertilisers if treated II To produce effluent that can be used as fertilisers III Reducing health risks IV Preventing air pollution star A I and II B I and III C II and IV D III and IV T5 Chapter 5.6 Application of Green Technology in Industrial Waste Management
26 Diagram 9 shows the apparatus set-up to determine the empirical formula of X oxide. Which of the following is X oxide? star A Calcium oxide B Magnesium oxide C Copper(II) oxide D Aluminium oxide T4 Chapter 3.3 Chemical Formula
27 Which of the following is the most suitable reaction to prepare copper(II) sulphate salt? star A Copper and sulphuric acid B Copper(II) oxide and nitric acid C Lead(II) nitrate and potassium sulphate T4 Chapter 6.9 Preparation of Salts
28 Diagram 9 shows the composition of ascorbic acid in vitamin C. What is the empirical formula of ascorbic acid? [Jisim atom relatif: H = 1, C = 12, O = 16] [Relative atomic mass: H= 1, C = 12, O = 16] star A CHO B C_3H_5O_3 C C_3H_4O_3 D C_6H_4O_3 T4 Chapter 3.3 Chemical Formula
29 A chef has to prepare a mutton dish in a short time. Select the changes that the chef needs to make in the preparation of the lamb meat before it cooks. star A Boil the lamb meat first B Cut the lamb meat into small pieces C Wash lamb in vinegar solution D Marinate lamb meat with spices T4 Chapter 7.3 Application of Factors that Affect the Rate of Reaction in Daily Life
30 The following information shows the results of an experiment to determine the heat of combustion of fuel X. Mass of fuel X burnt = 18.0 g Volume of water in the copper container = 200.0 cm^3 Increase in temperature = 18.0 °C What is the heat of combustion of fuel X? [Molar mass of fuel X = 180 g mol^-1; Specific heat capacity of water = 4.2 J g^-1 °C^-1; Density of water = 1.0 g cm^-3] star A -1512 kJ mol^-1 B -756.0 kJ mol^-1 C -151.2 kJ mol^-1 D -75.6 kJ mol^-1 T5 Chapter 3.2 Heat of Reaction
31 The equation shows the decomposition of a nitrate salt. 2Pb(NO_3)_2 -> 2PbO + 4NO_2 + O_2 Calculate the mass volume of nitrogen dioxide gas produces if 82.75 g of Pb(NO_3)_2 salt is heated at room condition. [Relative atomic mass: Pb =207, N =14, O =16; 1 mol gas = 24 dm^3 at room condition] star A 3.0 dm^3 B 6.0 dm^3 C 12.0 dm^3 D 24.0 dm^3 T4 Chapter 3.2 Mole Concept T4 Chapter 3.4 Chemical Equation
32 Diagram 10 shows a graph of volume of gas against time when 25 cm^3 of hydrochloric acid reacts with excess zinc granules. Calculate the number of moles of hydrochloric acid used. [Relative atomic mass: H = 1, Cl = 35.5, Mg = 24; Molar volume of gas: 24 dm^3 mol^-1 at room conditions] star A 0.001 B 0.005 C 0.010 D 0.020 T4 Chapter 3.2 Mole Concept T4 Chapter 6.4 Chemical Properties of Acids and Alkalis
33 Figure 11 shows various items made from polymers. Which of the following is a source of natural polymer? star A Nylon B Cellulose C Polyethene D Polypropene T5 Chapter 4.1 Polymer
34 Which of the following is the use of alcohol? star A To make vinegar B To make plastic C To make detergents D Production of synthetic rubber T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
35 Which diagram shows the electron arrangement for oxygen molecules, O2? [Proton number: O = 8] star A A Figure B B Figure C C Figure D D Figure T4 Chapter 5.3 Covalent Bond
36 When hydrochloric acid is added into a conical flask containing potassium hydroxide solution, pink colour of phenolphthalein turns colourless. What is the purpose of adding phenolphthalein into the conical flask before the end point? star A To detect the present of hydrogen ion, H^+ B To detect the present of hydroxide ion, OH^- C To detect the present of sodium ion, Na^+ D To detect the present of chloride ion, Cl^- T4 Chapter 6.7 Neutralisation
37 Diagram 12 shows the molecular formula of two hydrocarbon compounds. Which of the following is true about compounds P and Q? star A Compound P produces more soot when burnt in air B Compound Q decolourises brown bromine water, compound does not C Compound P is a saturated hydrocarbon, compound Q is an unsaturated hydrocarbon D Compound P undergoes substitution reaction, compound Q undergoes additional reaction T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
38 Diagram 13 shows the set-up of the apparatus to study the electrolysis of sodium chloride. Name the gas X and gas Y? | | Gas X | Gas Y | |---|---|---| | A | Gas Hidrogen Hydrogen gas | Gas klorin Chlorine gas | | B | Gas oksigen Oxygen gas | Gas hidrogen Hydrogen gas | | C | Gas Klorin Chlorine gas | Gas hidrogen Hydrogen gas | | D | Gas hidrogen Hydrogen gas | Gas oksigen Oxygen gas | star A A B B C C D D T5 Chapter 1.4 Electrolytic Cell
39 Diagram 14 shows a flow chart for a series of reactions on compound P. Which of the following is correct about Q, R and S? | | Q | R | S | |---|---|---|---| | A | Menyahwarnakan warna perang air bromin Decolourised brown colour of bromine water | Bertindak balas dengan logam reaktif menghasilkan garam dan air Reacts with reactive metal to form salt and water | CO2 | | B | Terbakar dengan nyalaan biru dan tidak menghasilkan jelaga Burns with a blue flame without soot | Bau manis buah-buahan Sweet and fruity smell | H2O | | C | Menyahwarnakan warna perang air bromin Decolourised brown colour of bromine water | Bertindak balas dengan logam reaktif menghasilkan garam dan gas hidrogen Reacts with reactive metal to form salt and hydrogen gas | CO2 | | D | Terbakar dengan nyalaan biru dan tidak menghasilkan jelaga Burns with a blue flame without soot | Bau manis buah-buahan Sweet and fruity smell | H2 | star A A B B C C D D T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series
40 Diagram 15 shows the energy profile of a reaction. The following information is about the chemical bond energy of reactants and products of the reaction. | Ikatan Bond | Tenaga Ikatan (kJ mol⁻¹) Bond energy (kJ mol⁻¹) | | :---------- | :------------------------------------------------ | | X-X | 436 | | Y-Y | 243 | | X-Y | 432 | Which of the following is correct about the Diagram 15? | | Jumlah tenaga haba yang diserap untuk pemutusan ikatan (kJ mol⁻¹) Total heat energy absorbed for bond breaking (kJ mol⁻¹) | Jumlah tenaga haba yang dibebaskan untuk pembentukan ikatan (kJ mol⁻¹) Total heat energy released for bond formation (kJ mol⁻¹) | Q | | :- | :-------------------------------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------------------------------------------------------- | :----- | | A | 218 | 216 | +434 | | B | 679 | 864 | -185 | | C | 193 | 432 | -239 | | D | 1340 | 432 | +908 | star A A B B C C D D T5 Chapter 3.1 Heat Change in Reactions