Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 May/June 2020 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 2, May/June 2020: 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_s20_qp_22 · 0620_s20_ms_22
Topics in this paper
Which syllabus chapters 0620/22 May/June 2020 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 May/June 2020
- Question 1
A mixture of ice and water is left to stand and the ice melts. Which row describes what happens as the ice is melting? temperature of mixture energy changes A increases average kinetic energy of particles increases B increases energy …
- Question 2
Which piece of apparatus is used to measure 25.0 cm3 of aqueous sodium hydroxide? …
- Question 3
Paper chromatography is used to determine the Rf values for four different food colourings. Which food colouring has an Rf value of …
- Question 4
The diagram shows the electronic structure of a particle with a nucleon number (mass number) of …
- Question 5
The electronic structures of two atoms, P and Q, are shown. …
- Question 6
Which statement about the structure of a metal explains why metals are malleable? A The electrons can move freely throughout the lattice. B The layers of metal ions can slide over each other. C The metal ions are positively charged. …
- Question 7
The bonding, structure and melting point of sodium chloride and sulfur dichloride are shown. compound bonding structure melting point / °C sodium chloride ionic giant lattice 801 sulfur dichloride covalent simple molecular –121 Why does sulfur dichloride have a lower …
- Question 8
Lead(II) nitrate, Pb(NO3)2, reacts with potassium iodide, KI, to form a yellow precipitate, PbI2, and a soluble salt, KNO3. What is the equation for the reaction? A Pb(NO3)2 + KI → PbI2 + KNO3 B Pb(NO3)2 + 2KI → PbI2 …
- Question 9
The Haber process is a reversible reaction. …
- Question 10
Electrolytes can be broken down by electrolysis. Which rows are correct for each electrolyte? electrolyte reaction at cathode product at anode 1 dilute aqueous sodium chloride …
- Question 11
The electrolysis of aqueous copper(II) sulfate, using inert electrodes, is shown. aqueous copper(II) sulfate + – Which statement about a reaction at an electrode is correct? A Copper ions gain electrons at the negative electrode. B Copper ions gain electrons …
- Question 12
Methane burns in excess oxygen. The equation is shown. CH4(g) …
- Question 13
Which statements about hydrogen fuel cells are correct? 1 Water is formed as the only waste product. 2 Both water and carbon dioxide are formed as waste products. 3 The overall reaction is …
- Question 14
Which list contains only chemical changes? A melting, evaporating, dissolving B rusting, freezing, subliming C neutralisation, polymerisation, combustion D boiling, condensing, distillation
- Question 15
The results of adding excess marble chips (calcium carbonate) to hydrochloric acid at 50 °C and at 30 °C are shown. Only the temperature is changed. volume of carbon dioxide given off / cm3 time …
- Question 16
Methane reacts with steam and an equilibrium is reached. CH4(g) + H2O(g) CO(g) + 3H2(g) The forward reaction is endothermic. Which row shows how the amount of hydrogen at equilibrium changes when the pressure or temperature is changed as indicated? …
- Question 17
When aqueous iron(III) chloride is added to aqueous potassium iodide a chemical reaction occurs and iodine is formed. Which statement is correct? A Iodide ions are oxidised, they gain electrons in this reaction. B Iodide ions are oxidised, they lose …
- Question 18
The graph shows how the pH of a solution changes as an acid is added to an alkali. acid + alkali → salt + water Which letter represents the area of the graph where both acid and salt are present? …
- Question 19
Which statement describes a weak acid? A It is a proton acceptor and is fully ionised in aqueous solution. B It is a proton acceptor and is partially ionised in aqueous solution. C It is a proton donor and is …
- Question 20
The apparatus shown is used to prepare aqueous copper(II) sulfate. Y solid X aqueous copper(II) sulfate excess of solid X filter paper heat stirrer What are X and …
- Question 21
Which process is not used in the preparation of an insoluble salt? A filtration B washing C crystallisation D drying
- Question 22
Which statement about Group I and Group VII elements is correct? A Group VII elements are monoatomic non-metals. B Lithium is more reactive with water than caesium. C The melting points of Group I metals increase down the group. D …
- Question 23
The properties of the element titanium, Ti, can be predicted from its position in the Periodic Table. Which row identifies the properties of titanium? can be used as a catalyst conducts electricity when solid has low density forms coloured compounds …
- Question 24
Which diagram shows a mixture of noble gases? …
- Question 25
Which property is shown by all metals? A They are extracted from their ores by heating with carbon. B They conduct electricity. C They form acidic oxides. D They react with hydrochloric acid to form hydrogen.
- Question 26
Many metal carbonates decompose when they are heated. Which row describes what happens when potassium carbonate, calcium carbonate and copper(II) carbonate are heated using a Bunsen burner? decomposes easily decomposes with difficulty does not decompose at Bunsen temperatures A calcium …
- Question 27
Molten iron from the blast furnace contains impurities. The process of turning the impure iron into steel involves blowing oxygen into the molten iron and adding calcium oxide. What are the reasons for blowing in oxygen and adding calcium oxide? …
- Question 28
Four iron nails are added to four different metal sulfate solutions. In which solution does a displacement reaction occur? A copper(II) sulfate B magnesium sulfate C sodium sulfate D zinc sulfate
- Question 29
Which statement about pure water is not correct? A It condenses at …
- Question 30
Three processes in the carbon cycle are shown. 1 Methane reacts with oxygen producing carbon dioxide and water. 2 Carbon dioxide and water are absorbed and used by plants to make oxygen. 3 Oxygen is used by living things to …
- Question 31
In the Haber process, nitrogen and hydrogen are reacted to make ammonia. …
- Question 32
Which process, used to prevent iron from rusting, involves sacrificial protection? A alloying B electroplating C galvanising D painting
- Question 33
A student suggests three uses of calcium carbonate (limestone). 1 manufacture of cement 2 manufacture of iron 3 treating alkaline soils Which suggestions are correct? A 1 and 2 only B 1 and 3 only C 2 and 3 only …
- Question 34
One of the reactions used in the manufacture of sulfuric acid is shown. 2SO2 + O2 2SO3 Which catalyst is used to increase the rate of this reaction? A iron B manganese(IV) oxide C vanadium(V) oxide D nickel
- Question 35
Ethanol is made on an industrial scale by the fermentation of sugars or by the reaction of ethene with steam in the presence of a suitable catalyst. What is a disadvantage of making ethanol from ethene rather than by fermentation? …
- Question 36
Which statement about compounds in the same homologous series is correct? A They have the same chemical properties because they have the same number of carbon atoms. B They have the same physical properties because they have the same number …
- Question 37
Increasing the number of atoms in one molecule of a hydrocarbon increases the amount of energy released when it burns. What is the correct order? less energy released more energy released A ethene ethane methane B ethene methane ethane C …
- Question 38
An organic compound, P, reacts with zinc to produce a gas, Q. What are P and …
- Question 39
Alkanes undergo substitution reactions in the presence of UV light. Which equation represents a substitution reaction of ethane? …
- Question 40
Which substances are natural polymers? 1 proteins 2 carbohydrates 3 nylon 4 poly(ethene) A 1 and …
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