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

Chemistry 0620/33 May/June 2023 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 3, May/June 2023: 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: 41

Open the question paper Mark scheme

File names: 0620_s23_qp_33 · 0620_s23_ms_33

Grade thresholds for 0620/33 May/June 2023

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
41	33	25	17	9

Topics in this paper

Which syllabus chapters 0620/33 May/June 2023 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Chemistry of the environment	2	19
Electrochemistry	1	18
Organic chemistry	1	13
Experimental techniques and chemical analysis	1	10
States of matter	1	8
The Periodic Table	1	6
Acids, bases and salts	1	6

Questions in 0620/33 May/June 2023

Question 1Chemistry of the environment · 6 marks
Fig. 1.1 shows part of the Periodic Table. I II III IV V VI VII VIII Li Al Ar …
Question 2States of matter · 8 marks
(a) Table 2.1 shows some properties of the halogens. Table 2.1 halogen melting point in °C boiling point in °C density at room temperature and pressure in g / cm3 fluorine –220 –188 chlorine –101 0.003 bromine …
Question 3Experimental techniques and chemical analysis · 10 marks
(a) Polluted water can contain harmful substances such as metal compounds, nitrates and sewage. (i) Name two other substances present in polluted water which are harmful to aquatic life. …
Question 4Electrochemistry · 18 marks
This question is about bromine and compounds of bromine. (a) Deduce the number of protons, neutrons and electrons in the bromide ion shown. 81Br – 35 number of protons number of neutrons number of electrons (b) Hydrogen bromide decomposes …
Question 5The Periodic Table · 6 marks
This question is about metals. (a) Nickel is a transition element. Sodium is an element in Group I of the Periodic Table. State two differences in the physical properties of nickel compared to sodium. …
Question 6Acids, bases and salts · 6 marks
(a) A student investigates the reaction of magnesium with dilute hydrochloric acid at three different temperatures. The temperatures are: …
Question 7Organic chemistry · 13 marks
(a) Fig. 7.1 shows the displayed formula of compound …
Question 8Chemistry of the environment · 13 marks
This question is about non-metals. (a) Non-metals are poor thermal conductors. Describe two other physical properties which are typical of non-metals. …

Other Chemistry papers from May/June 2023

Questions students ask

Where can I get the 0620/33 May/June 2023 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_s23_ms_33), and on a wide screen it sits beside the question you are reading.

What was the grade threshold for an A in 0620/33 May/June 2023?

41 marks out of 80, a C needed 25.

Which topics came up in 0620/33 May/June 2023?

Mostly Chemistry of the environment, Electrochemistry, Organic chemistry. The full list is in the table above.

Do I need an account to open 0620/33 May/June 2023?

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.