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

Chemistry 0620/33 May/June 2022 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 3, 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: 44

Open the question paper Mark scheme

File names: 0620_s22_qp_33 · 0620_s22_ms_33

Grade thresholds for 0620/33 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
44	37	29	21	13

Topics in this paper

Which syllabus chapters 0620/33 May/June 2022 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Organic chemistry	2	21
The Periodic Table	1	16
Chemistry of the environment	1	11
Atoms, elements and compounds	1	9
Electrochemistry	1	9
Chemical energetics	1	8
Chemical reactions	1	6

Questions in 0620/33 May/June 2022

Question 1Atoms, elements and compounds · 9 marks
(a) A list of symbols and formulae is shown. Al 2O3 C2H5OH CO2 Fe2O3 H2 He K+ Li+ N2 Na+ O2– Answer the following questions using these symbols or formulae. Each symbol or formula may be used once, more than …
Question 2Organic chemistry · 10 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+ 0.8 CO3 2– 0.7 …
Question 3The Periodic Table · 16 marks
This question is about Group I and Group VII elements. (a) Deduce the number of electrons, neutrons and protons in one atom of the isotope of sodium shown. 23Na 11 number of electrons number of neutrons number of protons …
Question 4Chemical energetics · 8 marks
This question is about acids and carbonates. (a) Describe the colour change when excess acid is added to a solution of methyl orange in alkaline solution. from to �� (b) Complete the word equation for the reaction of hydrochloric acid …
Question 5Chemistry of the environment · 11 marks
This question is about Group VI elements and their compounds. (a) Name the changes of physical state when: ● oxygen gas is converted to liquid oxygen ● solid sulfur is converted directly to sulfur gas. (b) Use the kinetic …
Question 6Organic chemistry · 11 marks
(a) The structures of four organic compounds, …
Question 7Electrochemistry · 9 marks
This question is about lithium and compounds of lithium. (a) Lithium reacts with nitrogen to produce lithium nitride, Li3N. Complete the chemical equation for this reaction. Li …
Question 8Chemical reactions · 6 marks
A student investigates the rate of decomposition of aqueous hydrogen peroxide using 0.2 g of a catalyst. …

Other Chemistry papers from May/June 2022

Questions students ask

Where can I get the 0620/33 May/June 2022 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_s22_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 2022?

44 marks out of 80, a C needed 29.

Which topics came up in 0620/33 May/June 2022?

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

Do I need an account to open 0620/33 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.