Cambridge O Level · 5070 · Paper 2 · Theory

Chemistry 5070/22 May/June 2024 past paper

Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, May/June 2024: the question paper and its official mark scheme, 9 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.

Questions: 9
Marks: 80
Grade A from: 53

Open the question paper Mark scheme

File names: 5070_s24_qp_22 · 5070_s24_ms_22

Grade thresholds for 5070/22 May/June 2024

The minimum raw marks Cambridge set for each grade on this component (out of 80). Thresholds change every session and variant, so always compare your score with the paper you actually sat.

A	B	C	D	E
53	37	22	17	13

Topics in this paper

Which syllabus chapters 5070/22 May/June 2024 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Organic chemistry	2	17
Acids, bases and salts	2	16
Chemical energetics	1	12
Electrochemistry	1	10
Chemical reactions	1	9
States of matter	1	9
Chemistry of the environment	1	7

Questions in 5070/22 May/June 2024

Question 1Acids, bases and salts · 5 marks
Choose from the following substances to answer the questions. anhydrous copper(II) sulfate calcium carbonate carbon monoxide chlorine ethanoic acid iron methanoic acid methanol nickel silicon(IV) oxide vanadium(V) oxide Each substance can be used once, more than once or not at …
Question 2Chemical energetics · 12 marks
Aluminium carbide, Al4C3, reacts with water to form methane, CH4, and aluminium hydroxide. (a) Construct the symbol equation for this reaction. (b) Methane is a saturated hydrocarbon. (i) Explain why methane is a hydrocarbon. (ii) Explain why methane is saturated. …
Question 3Electrochemistry · 10 marks
Aqueous hydrogen peroxide decomposes when heated to form oxygen. 2H2O2(aq) …
Question 4Chemical reactions · 9 marks
Calcium bromide, CaBr2, is an ionic solid composed of a lattice of calcium ions and bromide ions. (a) Explain why calcium bromide has a high melting point. (b) Describe how calcium atoms and bromine molecules react to form calcium ions …
Question 5Acids, bases and salts · 11 marks
When a sample of zinc carbonate is heated in a closed system, an equilibrium mixture is formed. ZnCO3(s) ZnO(s) + CO2(g) The forward reaction is endothermic. (a) The temperature of the closed system is decreased and the pressure is kept …
Question 6Chemistry of the environment · 7 marks
Methane, nitrogen monoxide and sulfur dioxide are air pollutants. (a) Describe one adverse effect of higher levels of methane in air. (b) The combustion of fossil fuels that contain sulfur produces sulfur dioxide. Describe two strategies to reduce the emission …
Question 7States of matter · 9 marks
Oxygen is a gas at room temperature. Sulfur is a solid at room temperature. (a) A sample of oxygen has a volume of 540 cm3 at room temperature and pressure. The temperature of the sample is increased but the pressure …
Question 8Organic chemistry · 9 marks
Fig. 8.1 is a flow diagram showing information about some organic chemical reactions. …
Question 9Organic chemistry · 8 marks
Polymers are made by either an addition reaction or a condensation reaction. (a) Fig. 9.1 shows the equation for the reaction used to prepare a polymer. The monomer is both an alcohol and a carboxylic acid. HO …

Other Chemistry papers from May/June 2024

Questions students ask

Where can I get the 5070/22 May/June 2024 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5070_s24_ms_22), and on a wide screen it sits beside the question you are reading.

What was the grade threshold for an A in 5070/22 May/June 2024?

53 marks out of 80, a C needed 22.

Which topics came up in 5070/22 May/June 2024?

Mostly Organic chemistry, Acids, bases and salts, Chemical energetics. The full list is in the table above.

Do I need an account to open 5070/22 May/June 2024?

No. Every paper opens for free without signing in. A free account also saves your pen marks and records your score against the grade thresholds.