Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/11 May/June 2023 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 1, May/June 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
- 21
File names: 0620_s23_qp_11 · 0620_s23_ms_11
Grade thresholds for 0620/11 May/June 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 |
|---|---|---|---|---|
| 21 | 18 | 15 | 13 | 11 |
Topics in this paper
Which syllabus chapters 0620/11 May/June 2023 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/11 May/June 2023
- Question 1
The diagram shows the result of dropping a purple crystal into water. water purple crystal after five hours purple solution Which processes take place in this experiment? chemical reaction diffusing dissolving …
- Question 2
Which row about elements, mixtures and compounds is correct? metallic element non-metallic element mixture compound A copper methane brass sulfur B brass sulfur copper methane C copper sulfur brass methane D brass methane copper sulfur
- Question 3
What are the relative charge and relative mass of an electron? relative charge relative mass …
- Question 4
The atomic structures of four particles, …
- Question 5
Which row shows the properties of an ionic compound? electrical conductivity of solid melting point …
- Question 6
Which row describes the formation of single covalent bonds in methane? A atoms share a pair of electrons both atoms gain a noble gas electronic structure B atoms share a pair of electrons both atoms have the same number of …
- Question 7
Which equation represents the neutralisation of nitric acid using sodium hydroxide? A NaOH(aq) + HNO3(aq) → NaNO3(aq) …
- Question 8
What is the relative formula mass of ammonium nitrate, NH4NO3? …
- Question 9
Concentrated aqueous sodium chloride is electrolysed using inert electrodes. Gases X and Y are produced at the electrodes shown. …
- Question 10
Which statement about hydrogen fuel cells is correct? A Hydrogen fuel cells do not produce carbon dioxide. B Hydrogen fuel cells do not need oxygen. C The waste from a hydrogen fuel cell is an acidic gas. D The reaction …
- Question 11
A reaction pathway diagram is shown. energy progress of reaction reactants products Which statement about this reaction is correct? A The reaction rate increases during the reaction. B The reaction is endothermic. C The reaction transfers thermal energy to the …
- Question 12
Lumps of calcium carbonate react with dilute hydrochloric acid as shown. CaCO3 + 2HCl → CaCl …
- Question 13
Solid copper(II) sulfate exists in two different forms, anhydrous and hydrated. One of these forms is blue and the other is white. The change between these two forms is reversible. blue form white form What is the blue form and …
- Question 14
Four redox equations and statements about the equations are shown. reaction statement …
- Question 15
Sodium hydroxide forms an alkaline solution with a pH of 14. Which indicator turns yellow when added to this solution? A litmus B methyl orange C thymolphthalein D universal indicator
- Question 16
Which row identifies an acidic oxide and a basic oxide? acidic oxide basic oxide A CaO CuO B CaO SO2 C CO2 CuO D CO2 SO2
- Question 17
A student makes aqueous copper(II) chloride by adding excess copper(II) carbonate to dilute hydrochloric acid. What is the next step in the method in the formation of solid copper(II) chloride? A crystallisation B evaporation C filtration D titration
- Question 18
Which statements about the trends across a period of the Periodic Table are correct? 1 Aluminium is more metallic than sodium. 2 Beryllium is more metallic than carbon. 3 Boron is more metallic than lithium. 4 Magnesium is more metallic …
- Question 19
Which row shows the trend in melting point, density and reactivity as Group I is descended? melting point density reactivity A increases decreases decreases B decreases increases increases C increases decreases increases D decreases increases decreases
- Question 20
Which row describes a similarity and a difference between chlorine and bromine? similarity difference A both are gases at room temperature and pressure chlorine and bromine have different colours B both exist as diatomic molecules chlorine is more dense than …
- Question 21
Which statement describes transition elements? A They have high densities and high melting points. B They have high densities and low melting points. C They have low densities and high melting points. D They have low densities and low melting …
- Question 22
Which diagram shows the electronic structure of a noble gas? …
- Question 23
Which gas is made when powdered zinc is added to dilute hydrochloric acid? A carbon dioxide B chlorine C hydrogen D oxygen
- Question 24
Which metal is used in aircraft manufacture because it has a low density? A aluminium B copper C iron D potassium
- Question 25
The diagram represents the structure of a solid. Which solids does the diagram represent? brass graphite sodium chloride …
- Question 26
Three students, X, Y and Z, are told that solid P reacts with dilute acids and also conducts electricity. The table shows the students’ suggestions about the identity of …
- Question 27
Which substances in the air are needed for iron to rust? A oxygen and water B oxygen only C water and carbon dioxide D water only
- Question 28
Part of the reactivity series of metals is shown. metal P decreasing reactivity carbon metal Q metal R Which row shows how each metal is extracted from its ore? metal P metal Q metal R A electrolysis of molten ore …
- Question 29
Several processes are used to treat domestic water. Which row identifies a reason for the given process? process reason A chlorination removes impurities B filtration removes insoluble solids C sedimentation removes soluble solids D use of carbon kills bacteria
- Question 30
Which pair of compounds make an NPK fertiliser? A ammonium sulfate and potassium phosphate B calcium hydroxide and ammonium nitrate C calcium phosphate and potassium chloride D potassium nitrate and ammonium sulfate
- Question 31
Some information about gas X is listed. ● It is not present in clean, dry air. ● It is not a cause of respiratory problems. ● It is responsible for global warming. What is X? A carbon dioxide B carbon …
- Question 32
Part of the structure of a molecule of vitamin A is shown. …
- Question 33
The fractional distillation of petroleum is shown. Which fraction contains hydrocarbons with the longest chain length? A fuel gas bitumen …
- Question 34
Which equation represents the cracking of an alkane? …
- Question 35
Which statements about ethanol are correct? 1 Ethanol is made by reacting steam with ethene at …
- Question 36
Which substances react with aqueous ethanoic acid to form a gas? 1 magnesium 2 magnesium carbonate 3 magnesium oxide …
- Question 37
In reaction R, 2000 molecules of CH2=CH2 react to form a single molecule X only. 2000 CH2=CH2 → X Which terms describe reaction R, CH2=CH2 and X? reaction R CH2=CH2 X A addition monomer polymer B addition polymer monomer C …
- Question 38
The concentration of acids and alkalis can be determined by titration. Which pieces of equipment are needed to perform a titration? …
- Question 39
Which process is used to produce drinking water from sea water? A crystallisation B distillation C filtration D chlorination
- Question 40
The results of two separate tests on a white solid X are shown. test result add dilute nitric acid effervescence add aqueous sodium hydroxide and warm a gas is formed which turns damp red litmus paper blue What is X? …
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