Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/11 Oct/Nov 2022 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 1, Oct/Nov 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
- 23
File names: 5070_w22_qp_11 · 5070_w22_ms_11
Grade thresholds for 5070/11 Oct/Nov 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 |
|---|---|---|---|---|
| 23 | 18 | 14 | 12 | 11 |
Topics in this paper
Which syllabus chapters 5070/11 Oct/Nov 2022 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/11 Oct/Nov 2022
- Question 1
Which row shows the most appropriate apparatus for the measurement given? quantity apparatus A 25.0 cm3 of solution measuring cylinder B 32.7 cm3 of solution pipette C 75 cm3 of gas gas syringe D 80 cm3 of solution burette
- Question 2
A liquid, X, is distilled from a mixture using the apparatus shown. water out water in liquid X heat During the distillation, the thermometer reads from 157 °C to 160 °C. Which information about liquid X is correct? A The …
- Question 3
An aqueous solution contains a salt, Y. Addition of an aqueous solution X results in a precipitate being formed that redissolves when more X is added. What could solution X and salt Y be? solution X salt Y A HCl …
- Question 4
Which gas diffuses the fastest at the same pressure? A nitrogen at …
- Question 5
The diagram shows the outer shell electrons of the atoms of two elements, Q and R. key = an electron = a nucleus Q R The sulfate of Q is insoluble. Element R is gaseous at room temperature and pressure. …
- Question 6
Which statement about iodine atoms and iodide ions is correct? A They are both isotopes of iodine. B They undergo the same chemical reactions. C They have the same number of protons. D They have the same physical properties.
- Question 7
The element chlorine has two isotopes, …
- Question 8
What is the nucleon number of the isotope of uranium, …
- Question 9
Silicon dioxide has a giant structure. Each silicon atom is joined to four oxygen atoms by covalent bonds. Part of the structure is shown. O Si O O Si …
- Question 10
Elements X and Y react to form compound XY. Element Y has more electrons in its outer shell than element X. Compound XY conducts electricity in the molten state. Which row correctly states the electron change that occurs during the …
- Question 11
Which compound has the most single bonds in one molecule? A CH3CH3 B CH3CH2OH C CH3CO2H D CH3CHCH2
- Question 12
The formula of ammonium metavanadate is NH4VO3. It consists of NH4 ions and VO3 ions. What are the charges on these ions? NH4 ion VO3 ion …
- Question 13
Which mass of oxygen gas combines with exactly 16 g of sulfur to form sulfur dioxide, SO2? …
- Question 14
The atomic number of ruthenium is 44. One of the oxides of ruthenium is a black solid, …
- Question 15
250 cm3 of 1.0 mol / dm3 hydrochloric acid reacts with an excess of solid sodium carbonate. The equation is shown. 2HCl (aq) + Na2CO3(s) → 2NaCl (aq) + CO2(g) + H2O(l) What is the volume of carbon dioxide produced …
- Question 16
When excess aqueous barium chloride is added to 25.0 cm3 of 1.00 mol / dm3 sodium sulfate, a white precipitate of barium sulfate is formed. Na2SO4(aq) + BaCl 2(aq) → BaSO4(s) + 2NaCl (aq) The precipitate is filtered off, washed, …
- Question 17
Aqueous copper(II) sulfate is electrolysed using inert electrodes. Which statement is correct? A Copper is collected at the anode. B Hydrogen is collected at the cathode. C Oxygen is collected at the anode. D Sulfur is collected at the cathode.
- Question 18
Concentrated aqueous sodium chloride is electrolysed using inert electrodes. Which equation shows the reaction that occurs at the anode? A 2Cl – → Cl …
- Question 19
Which pair of equations correctly represents the reactions taking place at the anode and at the cathode during the electrolysis of molten silver bromide? anode cathode A 2Br – → Br2 + 2e– Ag2+ …
- Question 20
Which two processes are both endothermic? A combustion and cracking B combustion and fermentation C cracking and photosynthesis D respiration and photosynthesis
- Question 21
A sample of sulfuric acid is added to 10 g of zinc granules. A reaction occurs and a gas is produced. The rate of the reaction is increased if a small amount of copper is added. The copper is unchanged …
- Question 22
The rate of reaction between magnesium and dilute hydrochloric acid is investigated. The equation is shown. Mg(s) + 2HCl (aq) → MgCl 2(aq) …
- Question 23
In which reaction is the underlined substance reduced? A CaCO3 + 2HCl → CaCl …
- Question 24
Which change involves reduction? A calcium carbonate to calcium oxide B copper to brass C ethene to poly(ethene) D sand to silicon
- Question 25
Thiosulfate ions, S2O3 2–, react with iodine, I2, in aqueous solution. 2S2O3 2–(aq) + I2(aq) → 2I–(aq) + S4O6 2–(aq) In this reaction, the S2O3 2– ions 1 electrons and are 2 . Which words correctly complete gaps 1 and …
- Question 26
The equation shows a reaction in the Contact process. 2SO2(g) + O2(g) 2SO3(g) …
- Question 27
Some medicines contain the magnesium salt of a fatty acid. The fatty acids are members of the homologous series of carboxylic acids and contain one carboxylic acid group. What is the carboxylic acid functional group and how many moles of …
- Question 28
Sodium sulfate, Na2SO4, and sodium hydrogensulfate, NaHSO4, can both be prepared using aqueous sodium hydroxide and sulfuric acid. 2NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + 2H2O(l) NaOH(aq) + H2SO4(aq) → NaHSO4(aq) …
- Question 29
Which substance reacts with dilute sulfuric acid in the preparation of a pure sample of lead(II) sulfate? A aqueous lead(II) nitrate B lead foil C powdered lead(II) carbonate D powdered lead(II) oxide
- Question 30
Which statement about sulfuric acid is correct? A In the manufacture of sulfuric acid, iron is used as the catalyst in the Contact process. B Sulfuric acid is used in some batteries. C Sulfuric acid is used as a fertiliser. …
- Question 31
Two statements are given. statement 1 Going down Group I and Group VII, the melting point of the elements increases. statement 2 Chlorine can displace iodine from aqueous potassium iodide but cannot displace bromine from aqueous potassium bromide. Which statements …
- Question 32
A reversible reaction involves a solid reacting with hydrogen. Which of the metals, aluminium and iron, would catalyse the reaction and what is their effect on the position of equilibrium? act as a catalyst position of equilibrium A both aluminium …
- Question 33
Iron is obtained in the blast furnace from the ore haematite. Which statement is correct? A Calcium carbonate is used to remove acidic impurities. B Coke is reduced to carbon dioxide. C Haematite is oxidised by carbon monoxide. D Haematite …
- Question 34
Three statements about the carbon cycle are given. 1 The carbon cycle regulates the amount of carbon dioxide in the atmosphere. 2 During photosynthesis, carbon dioxide is produced. 3 Combustion of hydrocarbons requires oxygen. Which statements are correct? A 1 …
- Question 35
Carbon is used in the purification of the water supply. What is the reason for this? A to remove mud and other insoluble solids B to remove nitrates caused by the excessive use of fertiliser C to remove tastes and …
- Question 36
Octane is an alkane with eight carbon atoms per molecule. What is the molecular formula of octane, and how does its boiling point compare with that of butane? molecular formula of octane boiling point of octane A C8H16 higher than …
- Question 37
Which equation for the reaction between propane and chlorine is correct? …
- Question 38
Propanoic acid reacts with calcium carbonate. The products of this reaction are calcium propanoate, carbon dioxide and water. What is the equation for this reaction? A 2C2H5COOH + Ca2CO3 → 2C2H5COOCa + CO2 …
- Question 39
The monomer, CH3CH=CHCH3, can be used to make an addition polymer. This addition polymer has a chain of carbon atoms joined to each other by C–C single bonds. Each of these carbon atoms is also bonded to at least one …
- Question 40
Which row correctly shows the structure of a polymer and the monomers from which it is made? monomers polymer …
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