Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/21 May/June 2022 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 1, 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
- 26
File names: 0620_s22_qp_21 · 0620_s22_ms_21
Grade thresholds for 0620/21 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 |
|---|---|---|---|---|---|---|
| 26 | 21 | 15 | 14 | 13 | 12 | 11 |
Topics in this paper
Which syllabus chapters 0620/21 May/June 2022 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/21 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
The numbers of protons and neutrons and the electronic structures of four particles, …
- Question 4
Which substance should be pure for the intended use? A a drug for curing disease B limestone for iron extraction C petroleum for fractional distillation D water for washing a car
- Question 5
Metals and ionic compounds have similarities and differences in their structure and properties. Which row about metals and ionic compounds is correct? similarity difference A both contain positive ions only ionic compounds contain anions B both contain positive ions ionic …
- Question 6
Which diagram represents the outer-shell electron arrangement in a nitrogen molecule? …
- 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
The relative atomic mass, Ar, of an element is determined by comparing the mass of one atom of the element with the mass of one atom of element Q. What is Q? A carbon B chlorine C hydrogen D oxygen
- Question 9
The equation for the reaction between aqueous lead(II) nitrate and aqueous sodium chloride is shown. Pb(NO3)2(aq) + 2NaCl (aq) PbCl 2(s) + 2NaNO3(aq) If 100 cm3 of aqueous lead(II) nitrate of concentration 0.1 mol / dm3 is reacted with …
- Question 10
The diagram shows the electrolysis of concentrated hydrochloric acid and concentrated aqueous sodium chloride using carbon electrodes. …
- Question 11
Aqueous copper(II) sulfate is electrolysed using copper electrodes. What is the ionic half-equation for the reaction at the cathode? A Cu Cu2+ …
- 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
The equation for the reaction between gaseous hydrogen and gaseous iodine to form gaseous hydrogen iodide is shown. …
- Question 14
Acidified aqueous silver nitrate is added to a test-tube containing aqueous chloride ions. The test-tube is then left in direct sunlight. Which row describes the observations and explains what happens to the reaction mixture? observation on adding aqueous silver nitrate …
- 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
Aqueous iron(III) chloride, FeCl 3, reacts with aqueous potassium iodide, KI. vFeCl 3 + wKI xFeCl 2 + yKCl + I2 Which statements are correct? 1 In the balanced equation, …
- Question 17
Which statement about acids is correct? A A strong acid has a higher pH than a weak acid of the same concentration. B A strong acid is a proton acceptor. C A weak acid is a proton donor. D A …
- 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
The electronic structure of element Z is 2,8,1. Which statements about Z are correct? 1 It is a metal. 2 It has two outer-shell electrons. 3 It is in Period …
- 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
Element M forms both M+ and M2+ ions. In which part of the Periodic Table is M placed? A Group I B Group II C Group III D transition elements
- Question 23
In the extraction of aluminium by electrolysis, cryolite is added to the bauxite ore. Which row describes the role of cryolite and gives the ionic half-equation at the cathode? role of cryolite ionic half-equation at the cathode A catalyst Al …
- Question 24
Mild steel is galvanised to prevent corrosion of the iron. Which statements about galvanising are correct? 1 Galvanising prevents corrosion because the zinc forms an alloy. 2 If the coating is damaged, water and oxygen do not corrode the iron. …
- Question 25
Which diagram represents the arrangement of the outer-shell electrons of a noble gas? …
- Question 26
Which statements about the general properties of metals are correct? 1 They are good conductors of heat and electricity. 2 They have low melting points. 3 They react with dilute acids to form a salt and water. 4 They react …
- Question 27
Reactions of three metals and their oxides are shown. metal add dilute hydrochloric acid to metal heat metal oxide with carbon …
- 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
The diagram shows the uses and treatment processes of muddy river water. muddy river water clear river water disinfected water use 1 use 2 process 1 process 2 Which row identifies uses 1 and 2 and processes 1 and 2? …
- Question 30
The equation for the manufacture of ammonia in the Haber process is shown. …
- 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
The flow chart shows part of the process for the manufacture of sulfuric acid and its electrolysis. gas 1 gas 2 gas 3 concentrated sulfuric acid dilute sulfuric acid electrolysis What are gases 1, 2 and 3? gas 1 gas …
- Question 33
Which statements about sulfur dioxide are correct? 1 Sulfur dioxide decolourises acidified potassium manganate(VII). 2 Sulfur dioxide forms when acids react with carbonates. 3 Sulfur dioxide is used as a bleach. 4 Sulfur dioxide is used to treat acidic soil. …
- 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
Ethanol is made industrially by the fermentation of glucose or by the catalytic addition of steam to ethene. Which statement describes an advantage of fermentation compared to catalytic addition? A Ethanol is the only product of fermentation. B Fermentation uses …
- Question 37
Some properties of colourless liquid L are listed. ● It boils at …
- Question 38
A molecule of compound P contains two carbon atoms and four hydrogen atoms. Which row represents P? name of compound Mr reacts with aqueous bromine A ethane …
- Question 39
The reaction of ethanol with acidified potassium manganate(VII) is shown. CH3CH2OH CH3COOH KMnO4 H+ Which type of reaction is taking place? A addition B condensation C hydrolysis D oxidation
- Question 40
Which polymer is a synthetic polyamide? A nylon B poly(ethene) C protein D Terylene Group The Periodic Table of Elements 1 H hydrogen 1 2 He helium 4 I II III IV V VI VII VIII 3 Li lithium 7 …
Other Chemistry papers from May/June 2022
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- 0620/22 Multiple choice (Extended)
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- 0620/41 Theory (Extended)
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- 0620/43 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical