Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 Feb/March 2022 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 2, Feb/March 2022: 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
- 26
File names: 0620_m22_qp_22 · 0620_m22_ms_22
Grade thresholds for 0620/22 Feb/March 2022
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 |
|---|---|---|---|---|---|---|
| 26 | 21 | 17 | 15 | 13 | 12 | 11 |
Topics in this paper
Which syllabus chapters 0620/22 Feb/March 2022 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 Feb/March 2022
- Question 1
Which gas has the fastest rate of diffusion? …
- Question 2
In which state does 1 dm3 of methane contain the most particles? A gas at …
- Question 3
Which statement explains why isotopes of the same element have the same chemical properties? A They have the same electronic structure. B They have the same relative mass. C They have the same nucleon number. D They have the same …
- Question 4
The electronic structures of atoms P and Q are shown. …
- Question 5
Fermentation of sugar produces a mixture of ethanol solution and solid yeast. How is the solid yeast removed from the mixture? A crystallisation B distillation C filtration D fractional distillation
- Question 6
Which row explains why copper is a good conductor of electricity at room temperature? copper ions move freely electrons move freely A no no B no yes C yes no D yes yes
- Question 7
Which pair of statements about diamond and graphite is correct? diamond graphite A Diamond and graphite are both pure carbon. They are both macromolecules. B Diamond and graphite can both be used as electrodes. Graphite is also used as a …
- Question 8
Sodium nitride contains the nitride ion, N3–. Sodium nitride is unstable and decomposes into its elements. What is the equation for the decomposition of sodium nitride? A 2NaN3 2Na …
- Question 9
Compound X contains carbon, hydrogen and oxygen only. By mass, it contains 26.7% carbon and 2.2% hydrogen. What is the empirical formula of X? A CHO B C2HO C CH2O D CHO2
- Question 10
Caesium fluoride is an ionic compound. Which statements about caesium fluoride are correct? 1 It conducts electricity when solid. 2 It has a high melting point. 3 It is soluble in water. 4 It is highly volatile. A 1 and …
- Question 11
Which diagram shows the direction of movement of ions and electrons during the electrolysis of molten sodium chloride? Cl – e– Na+ e– power supply A cathode anode Cl – e– Na+ Cl – Na+ e– power supply B cathode …
- Question 12
Calcium carbonate, CaCO3, reacts with dilute hydrochloric acid to produce carbon dioxide. The equation for the reaction is shown. The relative formula mass of calcium carbonate is 100. CaCO3 + 2HCl CaCl …
- Question 13
Molten sodium chloride and concentrated aqueous sodium chloride are electrolysed using platinum electrodes. What are the products at the negative electrode (cathode) in each electrolysis? molten sodium chloride concentrated aqueous sodium chloride A hydrogen hydrogen B hydrogen sodium C sodium …
- Question 14
An object is electroplated with silver using an aqueous silver salt as the electrolyte. Which row is correct? the object to be electroplated is the the other electrode is made from A anode carbon B anode silver C cathode carbon …
- Question 15
Which row describes the changes that occur in an endothermic reaction? energy change temperature A energy given out to the surroundings decreases B energy given out to the surroundings increases C energy taken in from the surroundings decreases D energy …
- Question 16
Which statement about fuels is correct? A Heat energy is only produced by burning fuels. B Hydrogen is used as a fuel although it is difficult to store. C Methane is a good fuel because it produces only water when …
- Question 17
Which statement about endothermic and exothermic reactions is correct? A In an endothermic reaction, less energy is absorbed in bond breaking than is released in bond forming. B In an endothermic reaction, the activation energy is always higher than in …
- Question 18
The reaction used to manufacture ammonia from nitrogen and hydrogen is reversible. An equilibrium is established between ammonia, nitrogen and hydrogen. Which statement describes the equilibrium? A Both the forward reaction and the backward reaction have the same rate. B …
- Question 19
How does increasing the concentration affect the reacting particles in a chemical reaction? increases the collision rate increases the proportion of particles with the activation energy …
- Question 20
Methyl orange is added to dilute hydrochloric acid and to aqueous sodium hydroxide. What is the colour of the methyl orange in each solution? colour in dilute hydrochloric acid colour in aqueous sodium hydroxide A orange red B red yellow …
- Question 21
Zinc oxide is an amphoteric oxide. Which types of substances will react with zinc oxide? A acids and bases B acids only C bases only D neither acids nor bases
- Question 22
Information about some silver compounds is shown. compound formula solubility in water silver carbonate Ag2CO3 insoluble silver chloride AgCl insoluble silver nitrate AgNO3 soluble silver oxide Ag2O insoluble Which equation shows a reaction which cannot be used to make a …
- Question 23
Aqueous ethanoic acid is a weak acid. Aqueous sodium hydroxide is a strong base. Aqueous ethanoic acid is neutralised by aqueous sodium hydroxide. Which statements are correct? 1 Aqueous ethanoic acid accepts protons from hydroxide ions. 2 The aqueous ethanoic …
- Question 24
Three properties of element X are listed. ● It contains atoms with a full outer shell of electrons. ● It is monoatomic. ● It is unreactive. In which part of the Periodic Table is the element placed? A Group I …
- Question 25
Which word equation represents a reaction that occurs? A sodium oxide + carbon sodium + carbon dioxide B sodium oxide + iron sodium + iron(II) oxide C iron(II) oxide + copper iron + copper(II) oxide D iron(III) …
- Question 26
Which statement about the extraction of aluminium is correct? A Aluminium is formed at the cathode during the electrolysis of aluminium oxide. B Hematite is mainly aluminium oxide. C Molten cryolite is used to raise the melting point of the …
- Question 27
Metal M is mixed with copper to produce brass. What is M? A chromium B nickel C vanadium D zinc
- Question 28
The table gives some properties of an element. melting point in C 3422 appearance of the element grey appearance of the chloride of the element dark blue density in g / cm3 19.2 electrical conductivity when solid good Which other …
- Question 29
Ammonia is produced using the Haber process. Which row shows the source of the raw materials and the reaction conditions? source of nitrogen source of hydrogen temperature / C pressure / atm A air hydrocarbons …
- Question 30
How many species are acting as bases in this reversible reaction? HNO3 …
- Question 31
The equation for a reaction occurring in the Contact process is shown. 2SO2 …
- Question 32
Which information about carbon dioxide and methane is correct? carbon dioxide methane A formed when vegetation decomposes key B greenhouse gas …
- Question 33
The structure of an ester is shown. …
- Question 34
Which statements about lime are correct? 1 Lime is made by heating calcium carbonate (limestone). 2 Lime is used to desulfurise flue gases. 3 Lime is used to treat alkaline soil. 4 The chemical name for lime is calcium oxide. …
- Question 35
Which structure is correctly named? A ethanoic acid …
- Question 36
The structure of part of a polymer is shown. C H Cl C H CH3 C H Cl C H CH3 C H Cl Which monomers can be used to make this polymer? …
- Question 37
Carboxylic acids are made by the oxidation of alcohols. Which carboxylic acid is produced from CH3CH2OH? A butanoic acid B ethanoic acid C methanoic acid D propanoic acid
- Question 38
Propene, C3H6, reacts with bromine, Br2, in an addition reaction. Which structure represents the product of this reaction? …
- Question 39
Which statements about ethanol are correct? 1 Ethanol is used as a solvent. 2 Ethanol can be made directly from ethane. 3 Ethanol is a covalent compound. A 1 only B 1 and …
- Question 40
Which diagram represents the structure of nylon? …
Other Chemistry papers from Feb/March 2022
- 0620/12 Multiple choice (Core)
- 0620/32 Theory (Core)
- 0620/42 Theory (Extended)
- 0620/62 Alternative to Practical