Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)

Chemistry 0620/31 May/June 2022 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 1, May/June 2022: the question paper and its official mark scheme, 8 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.

Questions: 8
Marks: 80
Grade A from: 46

Open the question paper Mark scheme

File names: 0620_s22_qp_31 · 0620_s22_ms_31

Grade thresholds for 0620/31 May/June 2022

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
46	37	28	20	12

Topics in this paper

Which syllabus chapters 0620/31 May/June 2022 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
States of matter	2	24
Organic chemistry	2	21
Electrochemistry	1	13
Atoms, elements and compounds	1	9
Chemical energetics	1	7
Chemical reactions	1	6

Questions in 0620/31 May/June 2022

Question 1Atoms, elements and compounds · 9 marks
(a) A list of symbols and formulae is shown. CaO CH4 C2H4 C2H6 Cl – Cu2+ H2 He K+ N2 Na+ SO2 Answer the following questions using these symbols or formulae. Each symbol or formula may be used once, more …
Question 2Organic chemistry · 9 marks
The table shows the masses of some ions in a 1000 cm3 sample of toothpaste. name of ion formula of ion mass of ion in 1000 cm3 of toothpaste / g NH4 + 0.2 calcium Ca2+ 1.2 Cl – 0.9 …
Question 3States of matter · 11 marks
This question is about halogens and halogen compounds. (a) Deduce the number of electrons, neutrons and protons in one atom of the isotope of chlorine shown. 37Cl 17 number of electrons number of neutrons number of protons (b) State …
Question 4Chemical energetics · 7 marks
This question is about acids and bases. (a) Describe the colour of methyl orange in acidic and alkaline solutions. in acidic solution in alkaline solution (b) Complete the word equation for the reaction of hydrochloric acid with calcium oxide. …
Question 5States of matter · 13 marks
This question is about Group IV elements and their compounds. (a) The changes of state of lead are shown. solid lead melting A liquid lead lead gas B condensing Name the changes of state represented by A and …
Question 6Organic chemistry · 12 marks
(a) The structures of four organic compounds, …
Question 7Electrochemistry · 13 marks
This question is about zinc and compounds of zinc. (a) Zinc is a metal. Give three physical properties of metals. …
Question 8Chemical reactions · 6 marks
A student investigates the reaction of large pieces of copper(II) carbonate with dilute hydrochloric acid. The hydrochloric acid is in excess. CuCO3 + 2HCl → CuCl 2 + CO2 + H2O The rate of reaction is found by measuring the …

Other Chemistry papers from May/June 2022

Questions students ask

Where can I get the 0620/31 May/June 2022 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_s22_ms_31), and on a wide screen it sits beside the question you are reading.

What was the grade threshold for an A in 0620/31 May/June 2022?

46 marks out of 80, a C needed 28.

Which topics came up in 0620/31 May/June 2022?

Mostly States of matter, Organic chemistry, Electrochemistry. The full list is in the table above.

Do I need an account to open 0620/31 May/June 2022?

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.