Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 May/June 2022 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), 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
- 25
File names: 0620_s22_qp_22 · 0620_s22_ms_22
Grade thresholds for 0620/22 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 | F | G |
|---|---|---|---|---|---|---|
| 25 | 20 | 15 | 14 | 13 | 12 | 11 |
Topics in this paper
Which syllabus chapters 0620/22 May/June 2022 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 May/June 2022
- Question 1
Which two gases will diffuse at the same rate, at the same temperature? A carbon monoxide and carbon dioxide B carbon monoxide and nitrogen C chlorine and fluorine D nitrogen and oxygen
- 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
A chromatogram of a single substance T is shown. solvent front baseline …
- 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
The diagrams show the structures of three macromolecules P, Q and …
- Question 6
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 7
The equation for the reaction between barium chloride and dilute sulfuric acid is shown. BaCl 2 + H2SO4 BaSO4 + 2HCl Which row shows the state symbols for this equation? BaCl 2 H2SO4 BaSO4 2HCl A (aq) (aq) (s) …
- Question 8
Methane and steam react in the presence of a catalyst. CH4(g) …
- 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
The diagram shows the electrolysis of aqueous copper(II) sulfate using inert electrodes. Which arrow shows the movement of electrons in the circuit? power supply anode cathode …
- 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 statements explain why increasing the concentration of a reactant increases the rate of reaction? 1 It increases the collision rate of particles. 2 It lowers the activation energy. 3 A greater proportion of the colliding molecules have the required …
- Question 14
When the colourless gas N2O4 is heated, it forms the brown gas NO2. When the reaction mixture is cooled, the brown colour fades and turns back to colourless. Which type of reaction is described by these observations? A decomposition B …
- 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
Which arrow on the energy level diagram shows the overall energy change for an endothermic reaction? energy progress of reaction reactants products …
- Question 17
When a hydrogen–oxygen fuel cell is in operation, a different reaction happens at each electrode. at the hydrogen electrode …
- 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
Substance J takes part in a redox reaction. In the reaction, J gains electrons. Which statement is correct? A J is the oxidising agent and it is oxidised in the reaction. B J is the oxidising agent and it is …
- Question 21
Elements in Group IV of the Periodic Table are shown. carbon silicon germanium tin lead What does not occur in Group IV as it is descended? A The proton number of the elements increases. B The elements become more metallic. …
- Question 22
Which statement about acids is correct? A Acids are proton acceptors. B Acids transfer electrons to bases in aqueous solution. C Hydrochloric acid reacts with ammonium hydroxide to produce ammonia. D Ethanoic acid partially ionises in aqueous solution.
- Question 23
Which elements have both a high melting point and variable oxidation states? A alkali metals B transition elements C halogens D noble gases
- 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
The number of protons and the number of neutrons in the atoms of elements X, Y and Z are shown. number of protons number of neutrons …
- Question 27
Which diagram represents the arrangement of atoms in an alloy? …
- Question 28
Three metal compounds, J, K and L, are heated using a Bunsen burner. The results are shown. J colourless gas produced, which relights a glowing splint K colourless gas produced, which turns limewater milky L no reaction Which row identifies …
- Question 29
Processes involved in the extraction of zinc are listed. 1 Heat zinc oxide with carbon. 2 Condense zinc vapour. 3 Vaporise the zinc. 4 Roast zinc ore in air. In which order are the processes carried out? …
- Question 30
Which process uses sacrificial protection to prevent steel from rusting? A galvanising B oiling C copper plating D painting
- 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
Which processes produce carbon dioxide? 1 respiration 2 photosynthesis 3 fermentation 4 combustion of hydrogen A 1 and …
- Question 33
Which reaction in the Contact process requires the use of a catalyst? …
- 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
The structure of ester W is shown. …
- Question 36
Ethene reacts with substance X to form ethanol. What is X? A ethanoic acid B glucose C hydrogen D steam
- 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 structures of some hydrocarbons are shown. …
- Question 39
Ethane reacts with chlorine in the presence of ultraviolet light. Which substances are produced in the reaction? …
- Question 40
Which polymer structure has the same linkages as Terylene? …
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