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

Chemistry 0620/33 May/June 2018 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 3, May/June 2018: 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: 48

Open the question paper Mark scheme

File names: 0620_s18_qp_33 · 0620_s18_ms_33

Grade thresholds for 0620/33 May/June 2018

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
48	40	32	23	14

Topics in this paper

Which syllabus chapters 0620/33 May/June 2018 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Atoms, elements and compounds	2	17
Organic chemistry	1	14
The Periodic Table	1	13
Chemistry of the environment	1	10
Electrochemistry	1	10
Stoichiometry	1	9
Chemical reactions	1	7

Questions in 0620/33 May/June 2018

Question 1Atoms, elements and compounds · 9 marks
The names of seven gases are given. ammonia ethene helium hydrogen hydrogen chloride methane nitrogen (a) Answer the following questions about these gases. Each gas may be used once, more than once or not at all. State which gas: (i) …
Question 2Chemistry of the environment · 10 marks
(a) The table shows the percentage by volume of each of the gases present in the exhaust gases from a petrol engine and a diesel engine. name percentage by volume from a petrol engine percentage by volume from a diesel …
Question 3The Periodic Table · 13 marks
This question is about cobalt and its compounds. (a) A coloured crystal of cobalt(II) chloride was placed at the bottom of a beaker containing water. After 2 days, the colour had spread throughout the water. at the start after 2 …
Question 4Organic chemistry · 14 marks
This question is about alcohols. (a) The structure of compound P is shown. …
Question 5Electrochemistry · 10 marks
(a) Molten lead(II) bromide can be electrolysed using the apparatus shown. molten lead(II) bromide inert electrodes + – The negative electrode is called the cathode. State the name of the positive electrode. (b) Predict the products of the electrolysis of …
Question 6Atoms, elements and compounds · 8 marks
This question is about isotopes. (a) An atom of an isotope of oxygen is represented by the symbol shown. 17O 8 Describe the structure of an atom of this isotope of oxygen. In your answer, include: ● ● the position …
Question 7Stoichiometry · 9 marks
This question is about Group I elements and their compounds. (a) The properties of some Group I elements are shown in the table. element melting point / °C relative hardness observations when it reacts with cold water lithium 181 23 …
Question 8Chemical reactions · 7 marks
The apparatus shown is used to investigate the rate of reaction between calcium carbonate and hydrochloric acid at 30 °C. water hydrochloric acid A calcium carbonate (a) Name the piece of apparatus labelled A in the diagram. (b) Describe how …

Other Chemistry papers from May/June 2018

Questions students ask

Where can I get the 0620/33 May/June 2018 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_s18_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 2018?

48 marks out of 80, a C needed 32.

Which topics came up in 0620/33 May/June 2018?

Mostly Atoms, elements and compounds, Organic chemistry, The Periodic Table. The full list is in the table above.

Do I need an account to open 0620/33 May/June 2018?

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.