Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 May/June 2026 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, May/June 2026: the question paper and its official mark scheme, 40 questions worth 40 marks. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
File names: 0620_s26_qp_12 · 0620_s26_ms_12
Topics in this paper
Which syllabus chapters 0620/12 May/June 2026 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 May/June 2026
- Question 1
Two gas jars are arranged as shown. The glass plate is removed and the jars allowed to stand for 3 hours. 1 light brown bromine vapour dark brown bromine vapour air glass plate 3 hours Which statement explains the change …
- Question 2
What is the relative charge and the relative mass of an electron? 2 relative mass relative charge …
- Question 3
Which row identifies the particles present in the nucleus and in the shells of one atom of …
- Question 4
Element M is in Group I and element N is in Group VII. Which diagram represents the bond that forms when element M and element N react together? …
- Question 5
What is the total number of shared electrons in one molecule of ammonia? …
- Question 6
Which use of graphite depends on the layers of carbon atoms being able to slide over each other? 6 cutting tools A electrodes B jewellery C lubricant D
- Question 7
The diagram represents phosphoric acid. …
- Question 8
The equation for the complete combustion of methane, CH4, is shown. CH4 + 2O2 →CO2 …
- Question 9
Four units are listed. 9 1 dm3 /mol 2 g/dm3 3 mol/dm3 4 g/mol Which units are units of concentration? 3 and …
- Question 10
Which row identifies the cathode, the anode and the electrolyte when nickel is electroplated with a thin layer of silver? 10 electrolyte anode cathode aqueous silver nitrate nickel silver A aqueous silver nitrate silver nickel B aqueous nickel(II) nitrate nickel …
- Question 11
X is an insoluble binary compound. In an experiment, X is electrolysed to form two elements. Which statement describes …
- Question 12
Which statement about a fuel cell in a car is correct? 12 The fuel cell produces heat, which powers the car. A The fuel cell is supplied with hydrogen directly from the air. B The only emission from a fuel …
- Question 13
Which statement describes an exothermic reaction? 13 Thermal energy is transferred to the surroundings leading to a decrease in the temperature of the surroundings. A Thermal energy is transferred to the surroundings leading to an increase in the temperature of …
- Question 14
An experiment X is carried out between a solid and a solution using the apparatus shown. 14 gas syringe The total volume of gas given off is measured at different times and the results plotted on a graph. In a …
- Question 15
What is shown by the symbol ⇌in the equation for a chemical reaction? 15 Heat is needed for the reaction to occur. A Water is needed for the reaction to occur. B A catalyst is needed to increase the rate …
- Question 16
Farmers add calcium oxide (lime) and ammonium salts to their fields. The compounds are not added at the same time because they react with each other. Which gas is produced in this reaction? 16 ammonia A carbon dioxide B hydrogen …
- Question 17
Which row identifies the universal indicator colour, pH and hydrogen ion concentration for the stated solution? 17 hydrogen ion concentration pH universal indicator colour description high 8 blue strong alkali A low 6 blue weak acid B high 1 red …
- Question 18
Magnesium sulfate is a soluble solid which is formed when insoluble magnesium oxide reacts with dilute sulfuric acid. Which method is used to prepare solid magnesium sulfate? 18 Excess sulfuric acid is reacted with magnesium oxide. The mixture is evaporated …
- Question 19
What is the charge on one ion of strontium, Sr? …
- Question 20
Elements P, Q and R are three elements in Group I of the Periodic Table. Element P has a lower density than element Q. Element Q has a higher melting point than element R. What are elements P, Q and …
- Question 21
Fluorine is the element above chlorine in Group VII of the Periodic Table. Which statements about fluorine are correct? 21 1 Fluorine is a solid at room temperature and pressure. 2 Iodine displaces fluorine from aqueous potassium fluoride. 3 The …
- Question 22
Cobalt is a transition element. What is a property of cobalt? 22 It forms coloured compounds. A It is a poor electrical conductor. B It has a low density. C It has a low melting point. …
- Question 23
Which row identifies the properties that make aluminium useful as a food container? key ✓= yes ✗= no 23 high resistance to corrosion good electrical conductivity low density …
- Question 24
Which alkali and acid react to produce a salt in which both the cation and anion are used to make a fertiliser? 24 ammonia and hydrochloric acid A ammonia and nitric acid B sodium hydroxide and hydrochloric acid C sodium …
- Question 25
Which row identifies properties of zinc? 25 thermal conductivity reacts with dilute acid poor no A good no B poor yes C good yes …
- Question 26
A scientist investigates the rusting of nails using the apparatus shown. 26 wet cotton wool wet cotton wool W X wet cotton wool Y damp air Z iron nail iron nail coated in grease stainless steel nail iron nail The …
- Question 27
Which row identifies the ore of aluminium and describes its extraction method? 27 extraction method ore reduction with carbon bauxite A electrolysis bauxite B reduction with carbon hematite C electrolysis hematite D
- Question 28
Water from natural sources may contain substances such as metal compounds, dissolved oxygen, phosphates and plastics. Which statement is correct? 28 Some metal compounds provide essential minerals for life. A Dissolved oxygen is always harmful to aquatic life. B Phosphates …
- Question 29
Which row identifies the source and the adverse effect of the named pollutant? 29 adverse effect source pollutant acid rain complete combustion in a car engine CO A increased global warming decomposition of vegetation CH4 B photochemical smog decomposition of …
- Question 30
The percentage composition of gases on the planet Neptune is shown. 30 percentage composition/% gas 80 hydrogen 18 helium 1.5 methane 0.5 other gases Which statement about the atmospheres on Neptune and on the Earth is correct? There is more …
- Question 31
Ethane, ethene, ethanol and ethanoic acid are all organic compounds. Which compounds are hydrocarbons? 31 ethane, ethene, ethanol and ethanoic acid A ethane and ethanol only B ethane and ethene only C ethane only …
- Question 32
Gas oil and naphtha are two fractions obtained from petroleum. What are uses of these fractions? 32 naphtha gas oil making chemicals jet fuel A making roads jet fuel B making chemicals diesel engine fuel C making roads diesel engine …
- Question 33
Four different fuels are listed. 33 1 ethanol 2 petroleum 3 hydrogen 4 natural gas Which fuels are fossil fuels? 2 and …
- Question 34
Which formula represents a compound which turns aqueous bromine colourless? …
- Question 35
Which statements about ethanol are correct? 35 1 Ethanol is made by reacting steam with ethene at 300°C. 2 Ethanol is made by fermentation at 55°C. 3 Ethanol burns to produce carbon dioxide and water. 4 Ethanol contains a carbon–carbon …
- Question 36
Potassium ethanoate is made by reacting ethanoic acid with potassium hydroxide. What else is formed in the reaction? key ✓= yes ✗= no 36 carbon dioxide water hydrogen …
- Question 37
The diagram shows the structure of an important product. …
- Question 38
Which processes are required to separate sand from a mixture of solid sodium chloride and sand? 38 1 add a suitable solvent 2 filter 3 distil 2 and 3 only D 1 and 3 only C 1 and 2 only …
- Question 39
Which statement about chlorine gas is correct? 39 It bleaches damp blue litmus paper. A It turns damp red litmus paper blue. B It decolourises acidified aqueous potassium manganate(VII). C It turns limewater cloudy. D
- Question 40
A solution of compound Z gives a light blue precipitate with aqueous ammonia. The precipitate dissolves in an excess of ammonia. A flame test is done on compound Z. What is the colour of the flame? 40 blue-green A lilac …
Other Chemistry papers from May/June 2026
- 0620/11 Multiple choice (Core)
- 0620/13 Multiple choice (Core)
- 0620/21 Multiple choice (Extended)
- 0620/22 Multiple choice (Extended)
- 0620/23 Multiple choice (Extended)
- 0620/31 Theory (Core)
- 0620/32 Theory (Core)
- 0620/33 Theory (Core)
- 0620/41 Theory (Extended)
- 0620/42 Theory (Extended)
- 0620/43 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical