Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 Oct/Nov 2022 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 2, Oct/Nov 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_w22_qp_22 · 0620_w22_ms_22
Grade thresholds for 0620/22 Oct/Nov 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 | 22 | 18 | 16 | 15 | 13 | 11 |
Topics in this paper
Which syllabus chapters 0620/22 Oct/Nov 2022 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 Oct/Nov 2022
- Question 1
The rate of diffusion of three gases, ammonia, carbon dioxide and methane, is measured. What is the order of the rate of diffusion of the gases from slowest to fastest? A CO2 NH3 CH4 B CO2 CH4 …
- Question 2
Which description of Brownian motion is correct? A random movement of particles due to bombardment by larger particles B random movement of particles due to bombardment by smaller particles C random movement of particles from a high concentration to a …
- Question 3
The chromatogram obtained using four substances, …
- Question 4
Which statements about isotopes of the same element are correct? 1 They are atoms which have the same chemical properties because they have the same number of electrons in their outer shell. 2 They are atoms which have the same …
- Question 5
Which statement about solid magnesium oxide is correct? A It is a giant structure made up of magnesium and oxygen atoms bonded covalently. B It is an electrical conductor with mobile magnesium ions and oxygen ions. C Magnesium loses electrons …
- Question 6
Which molecule contains only three shared pairs of electrons? A CH3OH B Cl …
- Question 7
Which particles are present in the structure of metals? 1 positive ions 2 negative ions 3 shared pairs of electrons 4 mobile electrons A 1 and …
- Question 8
Caffeine is a stimulant found in coffee. …
- Question 9
Which sample does not contain a number of atoms equal to the Avogadro constant? …
- Question 10
The electrolysis of concentrated aqueous sodium chloride and molten sodium chloride is shown. …
- Question 11
When an acid is added to an alkali, the temperature of the reaction mixture rises. Which words describe this reaction? A decomposition and endothermic B decomposition and exothermic C neutralisation and endothermic D neutralisation and exothermic
- Question 12
Some properties of four fuels are shown. Which fuel is a gas at room temperature and makes two products when it burns in a plentiful supply of air? fuel formula melting point / C boiling point …
- Question 13
The electrical energy, or voltage, of two simple cells is measured. V cell 1 zinc magnesium electrolyte V cell 2 magnesium copper electrolyte statement 1 The voltage of cell 1 is greater than cell 2. statement 2 Zinc is more …
- Question 14
Dilute aqueous sodium chloride is electrolysed using carbon electrodes. What is the product at the anode? A carbon dioxide B hydrogen C oxygen D sodium
- Question 15
The volume of gas given off in a chemical reaction is measured over time. The results are shown. …
- Question 16
Dinitrogen tetroxide, N2O4, is converted into nitrogen dioxide, NO2, in a reversible reaction. N2O4(g) 2NO2(g) The forward reaction is endothermic. Which conditions give the highest equilibrium yield of nitrogen dioxide? pressure / atmospheres temperature A 2 high B 2 low …
- Question 17
When magnesium is heated with zinc oxide a reaction occurs. The equation is shown. Mg + ZnO MgO + Zn Which substance is oxidised? A magnesium B magnesium oxide C zinc D zinc oxide
- Question 18
X and Y are oxides of two different elements. ● X reacts with water to produce aqueous solution …
- Question 19
Ethanoic acid reacts with water to produce an acidic solution. Which row describes the roles of ethanoic acid and water in this reaction? ethanoic acid water A accepts a proton donates a proton B accepts an electron donates an electron …
- Question 20
Copper(II) sulfate is a soluble salt. Calcium sulfate is an insoluble salt. Which row shows suitable reactants for preparing a pure sample of the named salt? salt reactants A calcium sulfate calcium carbonate + dilute sulfuric acid B calcium sulfate …
- Question 21
Strontium displaces magnesium from molten magnesium chloride. Bromine displaces iodine from aqueous potassium iodide. Which row describes the change in reactivity down both Group II and Group VII of the Periodic Table? reactivity down the group Group II Group VII …
- Question 22
Elements J and K are in the same period in the Periodic Table. J reacts with acids to produce a salt and hydrogen. K reacts with sodium to form an ionic compound. Which statement about J and K is correct? …
- Question 23
Part of the Periodic Table is shown. Which element has a high density, a high melting point and forms a brown oxide? …
- Question 24
The reactions of four metals, …
- Question 25
Three experiments, J, K and L, are set up to investigate rusting. J mild steel water K painted iron water L stainless steel water In which experiments does rusting occur? …
- Question 26
Silver is below copper in the reactivity series. Which row describes the reactions of silver? reaction with steam reaction with dilute hydrochloric acid A no reaction no reaction B no reaction reacts to produce hydrogen gas C reacts to produce …
- Question 27
Iron is galvanised by coating it in zinc. Brass is made by mixing copper with zinc. Which row gives the reasons for each of these uses of zinc? reason for galvanising iron reason for making brass A prevents corrosion produces …
- Question 28
The diagram shows a stage in the purification of dirty water. coarse gravel fine gravel sand dirty water pot with holes in bottom Which process does this apparatus show? A chlorination B condensation C distillation D filtration
- Question 29
Which substance in polluted air damages stonework and kills trees? A carbon dioxide B carbon monoxide C lead compounds D sulfur dioxide
- Question 30
Ammonium nitrate, NH4NO3, is a fertiliser and is added to fields to help crops grow. Slaked lime, Ca(OH)2, is an alkali and is added to fields to reduce the acidity of the soil. Ammonium nitrate and slaked lime should not …
- Question 31
The scheme shows four stages in the conversion of sulfur to sulfuric acid. In which stage is a catalyst used? oleum air air water sulfur sulfur dioxide sulfur trioxide concentrated sulfuric acid concentrated sulfuric acid stage B stage D stage …
- Question 32
Which element has an oxide that is used as a food preservative? A helium B hydrogen C iron D sulfur
- Question 33
Which substance gives off carbon dioxide on heating? A lime B limestone C limewater D slaked lime
- Question 34
Which compound has the most –CH2– groups in one molecule? A butane B butanoic acid C butan-1-ol D but-1-ene
- Question 35
Methane reacts with chlorine in the presence of ultraviolet light. Which substance is not produced in this reaction? …
- Question 36
Ethene reacts with both hydrogen and steam. Which row about these reactions is correct? reactant with ethene type of reaction catalyst used A hydrogen substitution phosphoric acid B hydrogen addition nickel C steam substitution phosphoric acid D steam addition nickel
- Question 37
Which type of reaction occurs when ethanol is converted to ethanoic acid? A combustion B decomposition C neutralisation D oxidation
- Question 38
Hydrolysis of polymer P produces the three compounds shown. …
- Question 39
Which statement about unsaturated hydrocarbons is correct? A CH3CH2CH=CHCH3 is an unsaturated hydrocarbon. B Ethene has more hydrogen atoms per molecule than ethane. C Unsaturated hydrocarbons have double bonds between carbon and hydrogen atoms. D Unsaturated hydrocarbons turn aqueous bromine …
- Question 40
The equation shows the formation of a polymer called Kevlar. HOOC COOH …
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