Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 Feb/March 2024 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 2, Feb/March 2024: 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
- 30
File names: 0620_m24_qp_22 · 0620_m24_ms_22
Grade thresholds for 0620/22 Feb/March 2024
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 |
|---|---|---|---|---|---|---|
| 30 | 25 | 19 | 17 | 15 | 13 | 11 |
Topics in this paper
Which syllabus chapters 0620/22 Feb/March 2024 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 Feb/March 2024
- Question 1
Solid X is heated for 600 seconds. The graph shows the heating curve that is obtained. …
- Question 2
Which statements about diffusion are correct? 2 Aqueous ions cannot diffuse in water. 1 Diffusion is caused by the random movement of particles. 2 Particles spread out in all directions in diffusion. 3 Diffusion can only take place in solids …
- Question 3
Which statement about an atom of fluorine, , is correct? 3 It contains a total of 28 protons, neutrons and electrons. A It contains more protons than neutrons. B Its isotopes contain different numbers of protons. C Its nucleus contains …
- Question 4
Two of the isotopes of calcium are represented as and . Which statement explains why these isotopes of calcium have identical chemical properties? 4 Both isotopes have the same number of neutrons. A Both isotopes have an electronic configuration of …
- Question 5
Which statement describes a property of potassium iodide? 5 It is insoluble in water. A It is a volatile substance. B It has a low melting point. C It conducts electricity when molten. D
- Question 6
Methanal, CH2O, has a boiling point of –19°C. At –20°C, the liquid methanal is a non-conductor of electricity. In a sample of methanal, each atom of carbon, hydrogen and oxygen has noble gas electronic configuration. Each atom has achieved this …
- Question 7
The structures of diamond and graphite are shown. 7 Which statement about diamond and graphite is correct? Diamond and graphite contain strong covalent bonds between carbon atoms. A Diamond and graphite have delocalised electrons. B Diamond and graphite have layered …
- Question 8
Which row contains a description of metallic bonding and a property that is explained by reference to metallic bonding? 8 property explained by reference to metallic bonding description of metallic bonding a metal will react with an acid, producing hydrogen …
- Question 9
What is the relative molecular mass, Mr, of sulfur dioxide? …
- Question 10
Magnetite is an ore of iron which contains the ions Fe2+, Fe3+ and O2– only. What is the formula of magnetite? 10 Fe3O4 D Fe3O2 C Fe2O3 B Fe2O A
- Question 11
Concentrated aqueous sodium chloride and dilute sulfuric acid are both electrolysed using inert electrodes. Which row identifies the product at the cathode in each electrolysis? 11 dilute sulfuric acid aqueous sodium chloride oxygen hydrogen A hydrogen hydrogen B oxygen chlorine …
- Question 12
Electrolytes can be broken down by electrolysis. Which rows are correct for each electrolyte? 12 product at anode reaction at cathode electrolyte oxygen …
- Question 13
Which statement about hydrogen–oxygen fuel cells is correct? 13 Hydrogen is extracted from clean, dry air. A The only product is carbon dioxide. B The reaction is endothermic. C No toxic gases are produced. D
- Question 14
Which statement defines the activation energy, Ea, for a reaction? 14 It is the minimum energy that colliding particles must have to react. A It is the minimum energy that endothermic reactions take in from their surroundings. B It is …
- Question 15
The equation for the complete combustion of ethyne, H–C≡C–H, is shown. …
- Question 16
In experiment 1, small lumps of limestone are added to dilute ethanoic acid at 40 °C. The volume of carbon dioxide released is measured at regular time intervals. A graph of the results is shown. 16 volume of carbon dioxide …
- Question 17
In the Haber process, nitrogen and hydrogen are reacted to make ammonia. …
- Question 18
The Ostwald process is used to make nitric acid. The conditions used in this process are: 18 a catalyst containing a transition element 1 a pressure of 10atm 2 a temperature of …
- Question 19
Hydrogen iodide is dissolved in water. HI …
- Question 20
Which statements about aqueous ethanoic acid are correct? 20 It can be produced by oxidising ethanol with potassium iodide. 1 It reacts with magnesium to produce hydrogen gas. 2 It has an approximate pH value of 3. 3 It produces …
- Question 21
Which element forms an acidic oxide? 21 calcium A lithium B magnesium C sulfur D
- Question 22
Which statement describes the properties of hydrochloric acid? 22 Carbon dioxide is produced when limestone reacts with hydrochloric acid. A Hydrogen is produced when sodium hydroxide reacts with hydrochloric acid. B Methyl orange turns yellow in strong hydrochloric acid. C …
- Question 23
Elements P and Q have the same number of electron shells. An atom of Q has more electrons in its outer electron shell than an atom of P. Which statements are correct? 23 P and Q are in the same …
- Question 24
Which substance reacts with dilute sulfuric acid to form a salt that can be removed from the resulting mixture by filtration? 24 aqueous barium chloride A aqueous sodium hydroxide B copper C copper(II) carbonate D
- Question 25
Astatine is below iodine in Group VII in the Periodic Table. Which row describes the properties of astatine? 25 reactivity state at room temperature displaces chlorine, bromine and iodine gas A displaces iodine but does not displace chlorine or bromine …
- Question 26
Which property of copper explains why it is classified as a transition element? 26 Copper can be bent into different shapes. A Copper forms Cu2+ and Cu+ ions. B Copper is a good conductor of electricity. C Copper has a …
- Question 27
Brass is an alloy that is formed from copper and zinc. Which statements are correct? 27 Brass, copper and zinc all conduct electricity. 1 Brass is a compound of copper and zinc. 2 Brass is harder than zinc. 3 2 …
- Question 28
The equation for the reaction of metal M with aqueous zinc sulfate is shown. M(s) + ZnSO4(aq) →MSO4(aq) + Zn(s) Which statement explains why metal M reacts with aqueous zinc sulfate? 28 Zinc is less reactive than M because M …
- Question 29
In the blast furnace, the impurity silicon(IV) oxide is removed by the formation of slag. Which equation represents the formation of the substance which reacts with silicon(IV) oxide to form slag? …
- Question 30
Aluminium is extracted from bauxite by electrolysis. Which statement is correct? 30 Aluminium ions are oxidised to form aluminium. A The cathode has to be replaced regularly because it reacts with the oxygen which is formed. B Carbon dioxide is …
- Question 31
Iron rusts but aluminium does not easily corrode. Which statement explains why aluminium does not easily corrode? 31 It is an alloy. A It is below iron in the reactivity series. B It is a transition element. C Its surface …
- Question 32
Which chemicals can be used as a fertiliser to provide the three elements needed for improved plant growth? 32 (NH2)2CO and KCl A (NH4)2HPO4 and K2SO4 B (NH4)2HPO4 and (NH2)2CO C (NH2)2CO and K2SO4 D
- Question 33
What is the colour change when water is added to anhydrous cobalt(II) chloride? 33 blue to white A blue to pink B white to blue C white to pink D
- Question 34
How do carbon dioxide and methane cause global warming? 34 They emit the thermal energy they have absorbed back to the Earth. A They absorb the radiation directly from the Sun. B They increase thermal energy loss to space. C …
- Question 35
Four statements about photosynthesis are listed. 35 Chlorophyll is required for photosynthesis. 1 The equation for photosynthesis is …
- Question 36
Which molecules are structural isomers? …
- Question 37
Which statements about the reaction of ethene with steam are correct? 37 The product has a higher molecular mass than ethane. 1 The product reacts with aqueous bromine. 2 The number of electrons shared between carbon atoms decreases. 3 The …
- Question 38
Methane and chlorine react to form chloromethane. Which row describes the necessary reaction condition and the type of reaction? 38 type of reaction reaction condition substitution ultraviolet light A substitution nickel catalyst B addition nickel catalyst C addition ultraviolet light …
- Question 39
Parts of the structure of two different polymers, X and Y, are shown. …
- Question 40
Substance Q is tested using paper chromatography. The resulting chromatogram is shown. 40 solvent front baseline Which statement is correct? Q is a pure substance. A The Rf value of the lower spot is …
Other Chemistry papers from Feb/March 2024
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