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

Chemistry 0620/31 Oct/Nov 2022 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 1, Oct/Nov 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: 42

Open the question paper Mark scheme

File names: 0620_w22_qp_31 · 0620_w22_ms_31

Grade thresholds for 0620/31 Oct/Nov 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
42	36	30	24	19

Topics in this paper

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

Chapter	Questions	Marks
Organic chemistry	3	24
Metals	1	13
Acids, bases and salts	1	13
Atoms, elements and compounds	1	12
States of matter	1	10
Chemistry of the environment	1	8

Questions in 0620/31 Oct/Nov 2022

Question 1Organic chemistry · 8 marks
The structures of seven compounds, …
Question 2Metals · 13 marks
(a) The table compares the percentage by mass of the elements in the whole Earth and in the Earth’s crust. element percentage by mass in the whole Earth percentage by mass in the Earth’s crust aluminium 1.20 8.20 calcium 1.10 …
Question 3Organic chemistry · 7 marks
This question is about fuels and energy production. (a) Name a fuel that is a solid at room temperature. (b) The diagram shows the apparatus used to compare the energy released when 100 cm3 of water is heated by burning …
Question 4States of matter · 10 marks
This question is about halogens. (a) The table shows some properties of four halogens. halogen melting point in °C boiling point in °C density at room temperature and pressure in g / cm3 fluorine –220 –188 chlorine –35 0.003 bromine …
Question 5Chemistry of the environment · 8 marks
This question is about compounds of nitrogen. (a) Fertilisers containing nitrogen are used by farmers to improve crop growth. Name two other elements found in most fertilisers that improve crop growth. and �� (b) Ammonium chloride, NH4Cl, reacts with calcium …
Question 6Acids, bases and salts · 13 marks
This question is about acids, bases and salts. (a) Describe the reaction of excess hydrochloric acid with zinc and with zinc oxide. Give the names of the products and any observations. reaction with zinc ● products and �� ● observations …
Question 7Organic chemistry · 9 marks
(a) The structure of lactic acid is shown. …
Question 8Atoms, elements and compounds · 12 marks
This question is about metals. (a) Nickel is a transition element. Sodium is an element in Group I of the Periodic Table. Nickel has a higher melting and boiling point than sodium. Give two other ways in which the physical …

Other Chemistry papers from Oct/Nov 2022

Questions students ask

Where can I get the 0620/31 Oct/Nov 2022 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_w22_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 Oct/Nov 2022?

42 marks out of 80, a C needed 30.

Which topics came up in 0620/31 Oct/Nov 2022?

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

Do I need an account to open 0620/31 Oct/Nov 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.