Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/13 Oct/Nov 2023 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 3, Oct/Nov 2023: 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
- 22
File names: 0620_w23_qp_13 · 0620_w23_ms_13
Grade thresholds for 0620/13 Oct/Nov 2023
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 |
|---|---|---|---|---|
| 22 | 20 | 17 | 15 | 13 |
Topics in this paper
Which syllabus chapters 0620/13 Oct/Nov 2023 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/13 Oct/Nov 2023
- Question 1
Which statement about solids, liquids or gases is correct? A Solids are easy to compress. B Liquids are easy to compress. C Liquids expand to fill their container. D Gases expand to fill their container.
- Question 2
Which substance is a mixture? A air B graphite C oxygen D water
- Question 3
The structure of an atom of element X is shown. 5p 6n key = electron = neutron = proton n p What is element X? A boron B carbon C sodium D sulfur
- Question 4
Sodium reacts with chlorine to form sodium chloride. Which statements describe what happens to the sodium atoms in this reaction? 1 Sodium atoms form positive ions. 2 Sodium atoms form negative ions. 3 Sodium atoms gain electrons. 4 Sodium atoms …
- Question 5
Which statement about ammonia is correct? A It conducts electricity when liquid. B It contains three covalent bonds. C It has a high boiling point. D It has a giant covalent structure.
- Question 6
Which row describes the structure and a use of graphite? structure use A giant covalent lubricant B giant covalent cutting tools C simple molecular lubricant D simple molecular cutting tools
- Question 7
The equation represents the reaction between solid magnesium oxide and dilute hydrochloric acid to form magnesium chloride and water. MgO + 2HCl MgCl …
- Question 8
What is the equation for the reaction between calcium and chlorine? A 2Ca + Cl Ca2Cl B 2Ca + Cl 2 Ca2Cl 2 C Ca + Cl CaCl D Ca + Cl 2 CaCl 2
- Question 9
Calcium nitrate has the formula Ca(NO3)2. What is the relative formula mass, Mr, of calcium nitrate? …
- Question 10
Dilute sulfuric acid is electrolysed using platinum electrodes. The gases produced at each electrode are collected. The gases are mixed together and ignited with a lighted splint. What is formed during this reaction? A hydrogen sulfide B sulfur dioxide C …
- Question 11
Electricity is passed through molten sodium chloride using inert electrodes. What is observed at the electrodes? A A colourless gas is produced at the negative electrode. B A pale yellow-green gas is produced at the positive electrode. C A silver-coloured …
- Question 12
Fuel cells are used as energy sources in cars. Which row gives a fuel used in a fuel cell and the products formed? fuel in a fuel cell products formed A hydrogen carbon dioxide and water B hydrogen water only …
- Question 13
When water is added to anhydrous iron(III) chloride, FeCl 3, hydrated iron(III) chloride, FeCl 3•6H2O, is formed and energy is given out. FeCl …
- Question 14
Which process is a chemical change? A burning carbon in air B dissolving copper(II) sulfate crystals in water C evaporating ethanol D freezing water
- Question 15
Anhydrous cobalt(II) chloride is blue and turns pink when water is added. How is this reaction reversed? A adding dilute acid B filtering C heating D cooling
- Question 16
Ethanol can be turned into ethanoic acid by passing it over hot copper(II) oxide. CH3CH2OH + 2CuO CH3COOH …
- Question 17
When heated strongly, silicon(IV) oxide reacts with carbon. SiO2 …
- Question 18
Information about four solutions, …
- Question 19
Which oxides are basic? 1 calcium oxide 2 sodium oxide 3 iron(II) oxide …
- Question 20
Which row describes the changes across a period of the Periodic Table, from left to right? number of outer-shell electrons metallic character A decreases decreases B decreases increases C increases increases D increases decreases
- Question 21
Which row shows properties of an element that is in the same group of the Periodic Table as lithium? electrical conductivity density in g / cm3 A high 0.97 B high 8.93 C low 0.07 D low 3.12
- Question 22
Which row describes how the properties of Group I elements change as the group is descended? melting point density reactivity A increases increases increases B increases decreases decreases C decreases increases increases D decreases decreases decreases
- Question 23
The elements in Group VII include chlorine, bromine and iodine. Which statements are correct? 1 Iodine is more dense than chlorine. 2 Iodine displaces chlorine from a solution containing chloride ions. 3 Bromine is a diatomic non-metal. 4 Chlorine gas …
- Question 24
Cobalt is a transition element. What is a property of cobalt? A It can form coloured compounds. B It is a poor electrical conductor. C It has a low density. D It has a low melting point.
- Question 25
Which statements about brass are correct? 1 It is an alloy of zinc and copper. 2 It is a compound of zinc and copper. 3 It is a mixture of zinc and copper. A 1 and …
- Question 26
Aluminium is used to make containers for storing food. Which property makes it suitable for this use? A conducts heat B low density C resists corrosion D shiny surface
- Question 27
Which pair of diagrams represents both a pure metal and an alloy? pure metal A alloy pure metal B alloy pure metal C alloy pure metal D alloy
- Question 28
A metal M is between sodium and magnesium in the reactivity series. Which reactions occur with M and its oxide? M reacts with steam M can be extracted by heating its oxide with carbon A no no B no yes …
- Question 29
The diagrams show experiments to investigate rusting of iron nails. 3 boiled water 2 salt water 1 tap water layer of oil In which test-tubes do the nails rust? …
- Question 30
Some uses of water are listed. 1 for drinking 2 in chemical reactions 3 in swimming pools 4 in washing For which uses is it necessary to chlorinate the water? A 1 and …
- Question 31
Two tests are done on an NPK fertiliser. test 1 flame test test 2 heat with aqueous sodium hydroxide and aluminium foil Which observations are made? test 1 test 2 A green flame gas evolved which turns red litmus blue …
- Question 32
The gases from the engine of a car contain oxides of nitrogen. How are these oxides formed? A Nitrogen reacts with carbon dioxide. B Nitrogen reacts with carbon monoxide. C Nitrogen reacts with oxygen. D Nitrogen reacts with petrol.
- Question 33
Which statements explain why plastics should be recycled? 1 They do not decompose when added to land fill. 2 They pollute rivers and oceans, harming wildlife. 3 They can produce toxic gases when burned. …
- Question 34
Unwanted vegetation is sometimes placed in a bin where it decomposes. The compost formed is used to fertilise soils. Which gas is likely to be present in a higher percentage inside the bin than in the air outside the bin? …
- Question 35
Ethene reacts with steam and with bromine in two separate reactions. What are the products of these two reactions? A ethanoic acid and bromoethane B ethanoic acid and dibromoethane C ethanol and bromoethane D ethanol and dibromoethane
- Question 36
Four types of reactions are listed. 1 substitution 2 combustion 3 polymerisation 4 addition Which reactions will ethane undergo? A 1 and …
- Question 37
The flow diagram shows how poly(ethene) may be made from petroleum. petroleum fuel oil ethene poly(ethene) …
- Question 38
Magnesium reacts with dilute hydrochloric acid to produce hydrogen gas. Which pieces of apparatus are needed to determine the rate of this reaction? …
- Question 39
The chromatograms of four different dyes are shown. pencil line …
- Question 40
The results of some tests on an aqueous solution of substance X are listed. 1 A cream precipitate is produced when adding aqueous silver nitrate. 2 Adding aqueous sodium hydroxide produces a green precipitate which dissolves in excess alkali. 3 …
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