Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/13 May/June 2026 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 3, 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_13 · 0620_s26_ms_13
Topics in this paper
Which syllabus chapters 0620/13 May/June 2026 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/13 May/June 2026
- Question 1
Which statement about solids, liquids or gases is correct? 1 Liquids are easy to compress. A Solids are easy to compress. B Gases expand to fill their container. C Liquids expand to fill their container. D
- Question 2
Which statement describes a compound? 2 It contains two or more elements chemically combined. A It contains two or more elements physically combined. B It contains two or more elements forming an alloy. C It contains two or more elements …
- Question 3
Four statements about particles in an atom are listed. 3 1 Protons and neutrons have the same relative mass and different relative charges. 2 Protons and neutrons have different relative masses and the same relative charge. 3 Protons and electrons …
- Question 4
Which statement about the atomic structure of the named element is correct? 4 Antimony, Sb, has only four occupied electron shells. A Selenium, Se, has only six electrons in its third electron shell. B Strontium, Sr, has four outer-shell electrons. …
- Question 5
An atom of element X has 20 protons and 20 neutrons. An atom of element Y has 19 electrons and a nucleon number of 40. Which statement is correct? 5 X is an isotope of argon. A X is an …
- Question 6
Which dot-and-cross diagram represents the bonding in sodium chloride? 6 + Na – Cl A – Na + Cl B + Na – Cl C Na Cl D
- Question 7
The formula of ammonia is NH3. Which statement about a molecule of ammonia is correct? 7 The bonding in a molecule of ammonia is ionic. A The nitrogen atom has a noble gas configuration; the hydrogen atoms do not. B …
- Question 8
Which statement about graphite is correct? 8 It has a low melting point because it has a simple molecular structure. A It has a high melting point because it has a giant ionic structure. B It has a low melting …
- Question 9
The diagram shows a model of an organic molecule. 9 key hydrogen atom carbon atom oxygen atom What is the molecular formula of this organic molecule? …
- Question 10
What is the relative formula mass of ammonium nitrate, NH4NO3? …
- Question 11
Substance X is electrolysed. A different gas is produced at each electrode. The gases are collected and tested at room temperature. One of the gases produces a squeaky pop when tested with a lighted splint. The other gas bleaches damp …
- Question 12
An iron pan is electroplated with copper. The apparatus for the electroplating is shown. 12 power supply metal electrode iron pan electrolyte Which row identifies the metal electrode and the electrolyte? electrolyte metal electrode aqueous iron(II) nitrate copper anode A …
- Question 13
Four statements about hydrogen fuel cells are listed. 13 1 Carbon dioxide and water are produced in the fuel cell. 2 In the fuel cell, hydrogen combines with oxygen. 3 The fuel cell converts chemical energy into electrical energy. 4 …
- Question 14
Four changes are described. 14 1 When sodium is added to water, thermal energy is released. 2 When water boils, thermal energy is absorbed. 3 When concentrated sulfuric acid is added to water, the temperature of the surroundings increases. 4 …
- Question 15
Which process involves a chemical change? 15 adding sodium to water A boiling water B dissolving sodium chloride in water C producing water from aqueous sodium chloride D
- Question 16
Which word equation is correct? 16 calcium + water →calcium hydroxide + hydrogen A zinc + hydrochloric acid →zinc chloride + water B magnesium + oxygen →magnesium oxide + water C aluminium + sulfuric acid →aluminium nitrate + hydrogen …
- Question 17
Dilute hydrochloric acid reacts with calcium carbonate. 1.0g of calcium carbonate is added to 50cm3 of dilute hydrochloric acid and the initial rate of reaction is calculated. The experiment is repeated but one change is made. All other conditions are …
- Question 18
Substance X is a blue solid. When X is heated, steam is produced and the solid turns white. What is X? 18 anhydrous cobalt(II) chloride A anhydrous copper(II) sulfate B hydrated cobalt(II) chloride C hydrated copper(II) sulfate …
- Question 19
The equations show two chemical reactions involved in the production of iron from its ore. …
- Question 20
Which solids neutralise dilute sulfuric acid to form aqueous magnesium sulfate? 20 1 magnesium carbonate 2 magnesium hydroxide 3 magnesium nitrate 4 magnesium oxide 2 and 4 only …
- Question 21
Which statement about bases is correct? 21 All bases dissolve in water to form solutions with a pH greater than 7. A Bases react with ammonium salts to form ammonia gas. B All oxides of elements in Period 3 of …
- Question 22
A method used to make copper(II) sulfate crystals is shown. 22 1 Place dilute sulfuric acid in a beaker. 2 Warm the acid. 3 Add copper(II) oxide until it is in excess. 4 Filter the mixture. 5 Evaporate the filtrate …
- Question 23
Which row describes the changes across a period of the Periodic Table, from left to right? 23 metallic character number of outer-shell electrons decreases decreases A increases decreases B increases increases C decreases increases D
- Question 24
Which statements about elements in Group VIII of the Periodic Table are correct? 24 1 Atoms of the elements have full outer electron shells. 2 They are diatomic. 3 They are gaseous at room temperature and pressure. 4 They react …
- Question 25
Caesium is a Group I element. Which statement describes a property of caesium? 25 It does not conduct electricity. A It has a higher melting point than sodium. B It reacts more vigorously with water than potassium. C It is …
- Question 26
Aqueous bromine is added to aqueous sodium iodide. bromine + sodium iodide …
- Question 27
Some properties of element X are listed. 27 1 It forms coloured compounds. 2 It has a high melting point. 3 It has a high density. Which properties show that X is a transition element? 2 and 3 only D …
- Question 28
Cobalt is a metal. It is more reactive than hydrogen, but less reactive than iron. Which statements are correct? 28 1 Cobalt reacts with dilute hydrochloric acid. 2 Cobalt reacts rapidly with cold water to form hydrogen gas. 3 Cobalt …
- Question 29
Which substances in the air are needed for iron to rust? 29 oxygen and water A oxygen only B water and carbon dioxide C water only D
- Question 30
In a titration, why is distilled water and not tap water used to rinse the burette? 30 Distilled water contains more bacteria than tap water. A Distilled water contains fewer dissolved ions than tap water. B Distilled water dissolves substances …
- Question 31
‘Fastgrow’ is an NPK fertiliser containing elements essential for improved plant growth. Which mixture of substances is used to make ‘Fastgrow’? 31 ammonium sulfate and potassium nitrate A ammonium nitrate and potassium phosphate B sodium nitrate and ammonium phosphate C …
- Question 32
Which diagram shows the percentage composition of clean, dry air? 32 percentage composition …
- Question 33
What is the general formula of the alcohol homologous series? 33 CnH2n+1OH D CnH2nOH C CnH2n–1OH B CnHnOH A
- Question 34
Which statement describes ethane? 34 It is a saturated covalent compound. A It is an unsaturated covalent compound. B It is a saturated ionic compound. C It is an unsaturated ionic compound. D
- Question 35
Which structure represents ethene? …
- Question 36
What is the name of fraction X? 36 kerosene X gasoline refinery gas fractions diesel oil lubricating fraction petroleum bitumen alcohol A fuel oil B naphtha C paraffin D
- Question 37
Four equations involving ethanoic acid are listed. 37 1 ethanoic acid + calcium →calcium ethanoate + water 2 ethanoic acid + magnesium oxide →magnesium ethanoate + water 3 CH3COOH + NaOH →CH3COONa …
- Question 38
Which piece of apparatus is used to measure exactly 25.00cm3 of dilute hydrochloric acid? 38 a balance A a beaker B a measuring cylinder C a volumetric pipette …
- Question 39
A mixture contains sand and an aqueous solution of sodium chloride. Which processes are used to obtain a sample of solid sand and a sample of solid sodium chloride from the mixture? 39 crystallisation followed by filtration A evaporation followed …
- Question 40
Four coloured substances, P, Q, R and S, are analysed by chromatography. The chromatogram is shown. 40 solvent front baseline …
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