Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 Oct/Nov 2024 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 2, Oct/Nov 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
- 27
File names: 0620_w24_qp_22 · 0620_w24_ms_22
Grade thresholds for 0620/22 Oct/Nov 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 |
|---|---|---|---|---|---|---|
| 27 | 24 | 20 | 18 | 16 | 14 | 12 |
Topics in this paper
Which syllabus chapters 0620/22 Oct/Nov 2024 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 Oct/Nov 2024
- Question 1
Oxygen melts at –219 C and boils at –183 C. At which temperature is oxygen a liquid? …
- Question 2
The pressure of a sample of gas is decreased. The temperature is kept constant. Which row describes the effects on the particles? movement of particles collisions between particles A slower occur less often B slower occur with more force C …
- Question 3
Rubidium has two isotopes, Rb 85 37 and Rb. 87 37 Which statement explains why both isotopes have the same chemical properties? A They have the same number of protons. B They have the same electronic configuration. C They have …
- Question 4
Which pair of elements react to form a compound with a strong attraction between oppositely charged ions? A carbon and bromine B carbon and nitrogen C sodium and oxygen D sodium and potassium
- Question 5
Four substances, P, Q, R and S, are described. ● P is diatomic. ● Q is a good conductor of electricity when solid and when molten. ● R is a silver solid with a very high melting point. ● S …
- Question 6
Which diagram shows the covalent bonding in a molecule of carbon dioxide? …
- 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
Diamond and graphite have giant covalent structures of carbon atoms. Which statement describes graphite? A It has a strong, rigid three-dimensional structure. B It has four strong covalent bonds between each carbon atom. C It has layers, which can slide …
- Question 9
Which row explains the malleability and electrical conductivity of a solid metal? malleability electrical conductivity A Delocalised electrons can move freely through the structure. Delocalised electrons can move freely through the structure. B Delocalised electrons can move freely through the …
- Question 10
The equation for the decomposition of ammonium carbonate, (NH4)2CO3, is shown. (NH4)2CO3(s) 2NH3(g) + CO2(g) + H2O(l) [Mr: (NH4)2CO3, 96] The total volume of gas produced is 360 cm3 at r.t.p. Which mass of ammonium carbonate, (NH4)2CO3, is decomposed? …
- Question 11
What is the empirical formula of a compound that contains 3.66 g of hydrogen, 37.8 g of phosphorus and 58.5 g of oxygen? …
- Question 12
Aqueous copper(II) sulfate is electrolysed using graphite electrodes. Which row identifies the product and observations at each electrode during the electrolysis? anode cathode product observation product observation A oxygen bubbles of gas copper electrode turns pink B copper electrode turns …
- Question 13
Molten sodium chloride is electrolysed using inert electrodes. Which row shows the products formed at the cathode and anode? cathode anode A chlorine hydrogen B chlorine sodium C hydrogen chlorine D sodium chlorine
- Question 14
The equation for the formation of ammonia is shown. …
- Question 15
Sulfur dioxide is converted to sulfur trioxide in the Contact process. The conditions used are 450 C and 200 kPa with a vanadium(V) oxide catalyst. Which row describes and explains the effect of changing conditions on the rate of reaction? …
- Question 16
Hydrogen gas reacts with iodine gas to form hydrogen iodide gas in an equilibrium reaction. …
- Question 17
The equation for the reaction of carbon with carbon dioxide is shown. C + CO2 2CO Which row identifies the carbon atom that is reduced and its change in oxidation number? atom that is reduced change in oxidation number …
- Question 18
Aqueous iron(II) sulfate is added to acidified potassium manganate(VII). The purple colour of the potassium manganate(VII) disappears. Aqueous potassium iodide is added to acidified potassium dichromate(VI). A dark brown solution forms. Which row identifies the role of the iron(II) sulfate …
- Question 19
Which row shows the difference between a weak acid and a strong acid? weak acid strong acid A fully dissociated partially dissociated B concentrated dilute C dilute concentrated D partially dissociated fully dissociated
- Question 20
Which substance turns methyl orange red? A aqueous ammonia B dilute hydrochloric acid C aqueous sodium hydroxide D distilled water
- Question 21
Which row describes zinc oxide and calcium oxide? zinc oxide calcium oxide A basic acidic B acidic basic C amphoteric acidic D amphoteric basic
- Question 22
Which row shows the properties of a transition element? catalyst colour of oxide electrical conductivity A yes red good B yes green poor C no yellow good D no white poor
- Question 23
Fluorine is the element at the top of Group VII of the Periodic Table. Which statement describes fluorine? A It is inert. B It is monatomic. C It is non-metallic. D It is a solid at room temperature.
- Question 24
When aluminium is placed in dilute hydrochloric acid, there is no reaction. When zinc is placed in dilute hydrochloric acid, bubbles of gas are immediately given off. Which statement correctly explains these observations? A Aluminium is coated with a layer …
- Question 25
Which statements about the use of sacrificial protection to prevent iron from rusting are correct? 1 A more reactive metal than iron is used as a sacrificial protector because it undergoes reduction before iron. 2 Zinc is used as a …
- Question 26
Aluminium is extracted from its ore by electrolysis. What is the role of cryolite in this process? A to lower the operating temperature B to lower the boiling point of bauxite C to raise the melting point of bauxite D …
- Question 27
Which row identifies two greenhouse gases and three processes by which they contribute to global warming? two greenhouse gases three processes A carbon dioxide and methane absorption, creation and reflection of thermal energy B carbon dioxide and oxygen absorption, creation …
- Question 28
Which mixture contains all of the elements in a typical NPK fertiliser? A ammonium nitrate and calcium phosphate B ammonium phosphate and potassium chloride C potassium nitrate and ammonium chloride D potassium carbonate and ammonium nitrate
- Question 29
Bromine reacts with but-2-ene. What is the displayed formula of the product of this reaction? …
- Question 30
Which statement is correct? A Bitumen is used as a fuel for ships. B Coal, natural gas and oxygen are all fuels. C Hydrogen is the main constituent of natural gas. D Petroleum is separated into useful substances by fractional …
- Question 31
Which statement explains why ethanoic acid is saturated? A The molecule dissociates completely in water. B There is a carbon–oxygen double bond in the molecule. C The carbon–carbon bond in the molecule is a single bond. D All the carbon–hydrogen …
- Question 32
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 33
Which row shows the properties of methane? soluble in water state at room temperature gives a positive test with aqueous bromine A no gas no B no gas yes C yes liquid no D yes liquid yes
- Question 34
The table shows two methods used to make ethanol. method type of process conditions source of raw material temperature / C pressure / atm catalyst fermentation batch 35 1 yeast sugar cane adding steam to ethene continuous 300 60 acid …
- Question 35
Which equation represents an addition reaction? A CH3CHO + HCN CH3CH(OH)CN …
- Question 36
The structure of part of a polymer is shown. …
- Question 37
Which structure represents part of a protein? …
- Question 38
Which piece of apparatus can only measure a single fixed volume? …
- Question 39
Pure solid copper(II) nitrate can be obtained from a mixture of copper(II) nitrate and copper powder. Three stages in the method are listed. X add water and stir Y crystallise Z filter After the three stages, the copper(II) nitrate is …
- Question 40
Which row describes a test and the observation for aqueous sulfate ions? test observation A add dilute nitric acid a gas is produced which turns limewater cloudy B add dilute nitric acid and aqueous barium nitrate white precipitate forms C …
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