Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 May/June 2022 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, May/June 2022: the question paper and its official mark scheme, 40 questions worth 40 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
- Grade A from
- 22
File names: 0620_s22_qp_12 · 0620_s22_ms_12
Grade thresholds for 0620/12 May/June 2022
The minimum raw marks Cambridge set for each grade on this component (out of 40). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E |
|---|---|---|---|---|
| 22 | 19 | 16 | 14 | 12 |
Topics in this paper
Which syllabus chapters 0620/12 May/June 2022 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 May/June 2022
- Question 1
Substances change state when their temperature is changed. Which changes of state take place when the temperature of a substance is lowered? 1 boiling 2 condensation 3 freezing 4 melting A 1 and …
- Question 2
A student measures the time taken for 2.0 g of magnesium to dissolve in 50 cm3 of dilute sulfuric acid. Which apparatus is essential to complete the experiment? 1 stop-clock 2 measuring cylinder 3 thermometer 4 balance …
- Question 3
Which method is used to separate a mixture of the following liquids? liquid boiling point / C methanol 64.5 ethanol 78.5 propan-1-ol 97.2 butan-1-ol 117.0 A crystallisation B evaporation C filtration D fractional distillation
- Question 4
X and Y are two different elements. X and Y have the same number of nucleons. Which statement about X and Y is correct? A They have the same physical properties. B Their atoms have the same number of electrons. …
- Question 5
Which row identifies an alloy, a pure metal and a non-metal? alloy pure metal non-metal A brass carbon copper B brass copper carbon C copper brass carbon D copper carbon brass
- Question 6
Which statement about ions and ionic bonding is correct? A Caesium atoms gain electrons to form negatively charged caesium ions. B Ionic bonding involves sharing of pairs of electrons. C Potassium ions and chloride ions have the same number of …
- Question 7
Which dot-and-cross diagram shows the arrangement of outer shell electrons in a molecule of hydrogen chloride? H A Cl H B Cl H C Cl Cl H D
- Question 8
Which statement explains why graphite can be used as a lubricant? A All of the atoms in graphite are carbon. B Each carbon atom forms three bonds. C Graphite has a macromolecular structure. D The layers in graphite can slide …
- Question 9
A compound of element X has the formula X2O and a relative formula mass of 144. What is element X? A copper, Cu B gadolinium, Gd C sulfur, S D tellurium, Te
- Question 10
The diagram shows the electrolysis of concentrated hydrochloric acid and concentrated aqueous sodium chloride using carbon electrodes. …
- Question 11
Which type of reaction occurs when calcium carbonate is heated at a high temperature to produce calcium oxide and carbon dioxide? A combustion B endothermic C oxidation D reduction
- Question 12
Which row identifies a chemical change and a physical change? chemical change physical change A boiling ethanol burning ethanol B burning ethanol evaporating ethanol C dissolving ethanol in water burning ethanol D evaporating ethanol dissolving ethanol in water
- Question 13
Which statement about rate of reaction is correct? A Catalysts increase the time for the reaction to be completed. B Decreasing particle size increases the rate of reaction. C Decreasing temperature increases the rate of reaction. D Rate of reaction …
- Question 14
Some common household substances are tested with litmus and methyl orange. household substance colour of litmus colour of methyl orange bicarbonate of soda blue yellow lemonade red red milk red red milk of magnesia blue yellow washing powder blue yellow …
- Question 15
Water is added to anhydrous copper(II) sulfate. What happens during the reaction? A The copper(II) sulfate turns blue and the solution formed gets colder. B The copper(II) sulfate turns blue and the solution formed gets hotter. C The copper(II) sulfate …
- Question 16
In which equation is carbon both oxidised and reduced? …
- Question 17
Aqueous solutions containing copper(II) ions can be identified using flame tests and by adding aqueous sodium hydroxide. Which row describes what is observed in these tests? flame test aqueous sodium hydroxide A blue-green flame light blue precipitate B blue-green flame …
- Question 18
The oxides of two elements, X and Y, are separately dissolved in water and the pH of each solution tested. oxide tested pH of solution …
- Question 19
An acid is neutralised by adding an excess of an insoluble solid base. A soluble salt is formed. How is the pure salt obtained from the reaction mixture? A crystallisation evaporation filtration B evaporation crystallisation filtration …
- Question 20
Some statements about gas G are listed. G is monoatomic. G is found in clean, dry air. G is used in lamps. Which element is G? A argon B helium C nitrogen D oxygen
- Question 21
Part of the Periodic Table is shown. Which element is a metal? …
- Question 22
The elements sodium to argon form Period 3 of the Periodic Table. Which row describes the trend across Period 3 from left to right? number of outer-shell electrons metallic character group number A decreases decreases decreases B decreases increases decreases …
- Question 23
Some properties of element E are listed. It has a high density. It has a high melting point. What is E? A aluminium B bromine C iron D lithium
- Question 24
Lithium, sodium and potassium are elements in Group I of the Periodic Table. Chlorine, bromine and iodine are elements in Group VII of the Periodic Table. Which row identifies the least dense of these elements in each group? Group I …
- Question 25
- Question 26
Iron is extracted from hematite in the blast furnace at a temperature of about 1550 C. Which equation shows the main reaction that increases the temperature in the furnace? A CaCO3 CaO + CO2 …
- Question 27
Which diagram represents the arrangement of atoms in an alloy? …
- Question 28
Which uses of the metals shown are correct? aluminium stainless steel A aircraft bodies car bodies B car bodies aircraft bodies C chemical plant food containers D food containers cutlery
- Question 29
Which row identifies a substance present in clean air and a substance that is a pollutant in air? present in clean air pollutant in air A oxides of nitrogen nitrogen B carbon dioxide sulfur dioxide C carbon monoxide lead compounds …
- Question 30
Which property of sulfur dioxide explains why it is used as a food preservative? A acidic oxide B bleach C kills bacteria D pungent smell
- Question 31
Fertilisers are used to provide three of the elements needed for plant growth. Which two compounds would give a fertiliser containing all three of these elements? A Ca(NO3)2 and (NH4)2SO4 B Ca(NO3)2 and (NH4)3PO4 C KNO3 and (NH4)2SO4 D KNO3 …
- Question 32
Compound J is an unsaturated carboxylic acid. Which bonds are present in a molecule of …
- Question 33
Petroleum is separated into useful fractions by fractional distillation. Which fraction is used as a fuel for jet aeroplanes? A fuel oil B gasoline C naphtha D kerosene / paraffin
- Question 34
What are the products when limestone (calcium carbonate) is heated strongly? A calcium hydroxide and carbon dioxide B calcium hydroxide and carbon monoxide C calcium oxide and carbon dioxide D calcium oxide and carbon monoxide
- Question 35
Ethene reacts with substance X to form ethanol. What is X? A ethanoic acid B glucose C hydrogen D steam
- Question 36
What is the equation for the complete combustion of methane? A CH4 …
- Question 37
Alkenes can be produced by cracking large hydrocarbon molecules to form smaller hydrocarbon molecules. Which equations represent possible reactions when tetradecane, C14H30, is cracked? …
- Question 38
The products formed by burning substance J are passed through the apparatus shown. ice products of burning J white precipitate forms in limewater water collects What is substance J? A carbon monoxide B ethanol C hydrogen D sulfur
- Question 39
Which statements about ethanoic acid are correct? 1 Aqueous ethanoic acid reacts with magnesium to form magnesium ethanoate. 2 Carbon dioxide is formed when aqueous ethanoic acid reacts with sodium carbonate. 3 Hydrogen is formed when aqueous ethanoic acid reacts …
- Question 40
Which statement about polymerisation is correct? A Large monomer molecules join to form small polymer molecules. B Large polymer molecules join to form small monomer molecules. C Small monomer molecules join to form large polymer molecules. D Small polymer molecules …
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