Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 May/June 2018 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, May/June 2018: the question paper and its official mark scheme, 40 questions, with the grade thresholds. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
- Grade A from
- 20
File names: 0620_s18_qp_12 · 0620_s18_ms_12
Grade thresholds for 0620/12 May/June 2018
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 |
|---|---|---|---|---|
| 20 | 17 | 14 | 12 | 10 |
Topics in this paper
Which syllabus chapters 0620/12 May/June 2018 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 May/June 2018
- Question 1
When iodine is heated it turns from a solid to a gas. When liquid ammonia is cooled it turns into a solid. When ice is heated it turns into water. Which terms describe these changes of state? when iodine is …
- Question 2
Which piece of apparatus cannot be used to collect and measure the volume of gas produced in an experiment? A burette B gas syringe C measuring cylinder D pipette
- Question 3
Pure ethanol has a melting point of –114 °C and a boiling point of 78 °C. What are the melting and boiling points of a sample of ethanol with glucose dissolved in it? melting point / °C boiling point …
- Question 4
Which atom has an equal number of protons, neutrons and electrons? A 40Ar …
- Question 5
Which description of brass is correct? A alloy B compound C element D non-metal
- Question 6
The bonding between elements X and Y in compound XY2 is shown. …
- Question 7
The ‘lead’ in a pencil is made of a mixture of graphite and clay. ‘lead’ When the percentage of graphite is increased, the pencil slides across the paper more easily. Which statement explains this observation? A Graphite has a high …
- Question 8
The equation for the reaction between magnesium and dilute sulfuric acid is shown. The Mr of MgSO4 is 120. Mg + H2SO4 → MgSO4 + H2 Which mass of magnesium sulfate is formed when 12 g of magnesium completely reacts …
- Question 9
The electrolysis of molten lead(II) bromide is shown. power supply + – molten lead(II) bromide Which statement describes what happens at the negative electrode? A Bromide ions gain electrons to form bromine molecules. B Bromine molecules gain electrons to form …
- Question 10
Which statement about the combustion of fuels is correct? A It always produces carbon dioxide. B It always produces carbon monoxide. C It is always endothermic. D It is always exothermic.
- Question 11
Which statement about chemical reactions is correct? A Endothermic reactions show a temperature decrease because energy is absorbed from the surroundings. B Endothermic reactions show a temperature increase because energy is released into the surroundings. C Exothermic reactions show a …
- Question 12
The diagram shows a rate of reaction experiment. excess dilute hydrochloric acid at 25 °C hydrogen magnesium Increasing the concentration of the acid and increasing the temperature both affect the rate of reaction. Which row is correct? increase the concentration …
- Question 13
Reaction X shows a test for water. Reaction Y occurs in the blast furnace for extracting iron. reaction X CoCl …
- Question 14
Which equation shows an oxidation reaction? …
- Question 15
Which two gases each give the same result for the test shown? test gas 1 gas 2 A damp blue litmus paper ammonia chlorine B damp blue litmus paper ammonia oxygen C lighted splint hydrogen chlorine D lighted splint hydrogen …
- Question 16
Which statement about oxides is correct? A A solution of magnesium oxide has a pH less than pH …
- Question 17
Which methods are suitable for preparing both zinc sulfate and copper(II) sulfate? 1 reacting the metal oxide with warm dilute aqueous sulfuric acid 2 reacting the metal with dilute aqueous sulfuric acid 3 reacting the metal carbonate with dilute aqueous …
- Question 18
Two separate tests are done on separate solutions of compound X. 1 Addition of aqueous sodium hydroxide forms a green precipitate that dissolves in an excess of aqueous sodium hydroxide. 2 Addition of dilute nitric acid and aqueous silver nitrate …
- Question 19
Which statement about the Periodic Table is correct? A Elements in the same group have the same number of electron shells. B It contains elements arranged in order of increasing proton number. C Metals are on the right and non-metals …
- Question 20
Chlorine, bromine and iodine are elements in Group VII of the Periodic Table. Which statement about these elements is not correct? A The colour gets darker down the group. B The density increases down the group. C They are all …
- Question 21
Which row describes the properties of a transition element? property 1 property 2 A forms colourless compounds acts as a catalyst B forms colourless compounds low electrical conductivity C high density acts as a catalyst D high density low electrical …
- Question 22
Which statement about the elements in Group VIII is correct? A They all form diatomic molecules. B They all have eight electrons in their outer shells. C They all react with oxygen to form oxides. D They are all gases …
- Question 23
Stainless steel is an alloy of iron, carbon and other metals. Which row is correct? stainless steel is harder than pure iron stainless steel resists corrosion better than pure iron …
- Question 24
A student is given metal Z and its oxide. The student does some experiments to find out the position of metal Z in the reactivity series. The results are shown. ● Metal Z reacted slowly with dilute hydrochloric acid. ● …
- Question 25
Iron is produced from iron ore in a blast furnace. waste gases slag hot air molten iron raw materials zone 3 zone 2 zone 1 Which equation represents the main reaction that happens in zone …
- Question 26
Which row describes the use of an alloy and the property upon which the use depends? alloy use property A mild steel cutlery resistant to corrosion B mild steel machinery strong C stainless steel cutlery low density D stainless steel …
- Question 27
Dry air is passed over hot copper until all the oxygen has reacted. heat copper dry air The volume of gas at the end of the reaction is 120 cm3. What is the starting volume of dry air? A 132 …
- Question 28
A steel bicycle which had been left outdoors for several months was starting to rust. What would not reduce the rate of corrosion? A Remove the rust and paint the bicycle. B Remove the rust and store the bicycle in …
- Question 29
Which statements about water are correct? 1 Household water contains dissolved salts. 2 Water for household use is filtered to remove soluble impurities. 3 Water is treated with chlorine to kill bacteria. 4 Water is used in industry for cooling. …
- Question 30
Ammonium nitrate is a common fertiliser used by farmers to increase the yield of their crops. Which compound reacts with ammonium nitrate to form ammonia? A calcium hydroxide B potassium nitrate C sodium chloride D sodium phosphate
- Question 31
Which process does not release a greenhouse gas? A digestion of food in cows B reaction between zinc and hydrochloric acid C respiration by animals D thermal decomposition of calcium carbonate
- Question 32
Which row describes the uses of sulfur and sulfur dioxide? sulfur sulfur dioxide A extraction of aluminium food preservative B extraction of aluminium water treatment C manufacture of sulfuric acid food preservative D manufacture of sulfuric acid water treatment
- Question 33
Limestone is used in many industrial processes. In which process is it not used? A manufacture of alkenes B manufacture of cement C manufacture of iron D manufacture of lime
- Question 34
Lime is used to treat an industrial waste. lime untreated waste treated waste Which change occurs in the treatment? untreated waste treated waste A acidic → neutral B alkaline → acidic C alkaline → neutral D neutral → acidic
- Question 35
What is not the correct use of the fraction named? name of fraction use A fuel oil making waxes B gas oil fuel in diesel engines C kerosene jet fuel D naphtha making chemicals
- Question 36
Four organic compounds are listed. ethane ethanoic acid ethanol ethene Which bond do all four compounds contain? …
- Question 37
Which compounds belong to the same homologous series? A ethane and propane B ethanoic acid and ethanol C methane and ethene D propene and ethanoic acid
- Question 38
Which substances can be obtained by cracking hydrocarbons? A ethanol and ethene B ethanol and hydrogen C ethene and hydrogen D ethene and poly(ethene)
- Question 39
The equations for two important processes used to manufacture ethanol are shown. process …
- Question 40
Part of the label on the packet of a potato product is shown. This potato product contains: starch ethanoic acid sodium chloride sugar Which constituent is a natural polymer? A ethanoic acid B sodium chloride C starch D sugar Group …
Other Chemistry papers from May/June 2018
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- 0620/41 Theory (Extended)
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- 0620/61 Alternative to Practical
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