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

Chemistry 0620/33 Oct/Nov 2018 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 3, Oct/Nov 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: 54

Open the question paper Mark scheme

File names: 0620_w18_qp_33 · 0620_w18_ms_33

Grade thresholds for 0620/33 Oct/Nov 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
54	46	38	31	24

Topics in this paper

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

Chapter	Questions	Marks
Acids, bases and salts	3	28
Atoms, elements and compounds	2	17
Electrochemistry	1	13
Metals	1	12
Stoichiometry	1	10

Questions in 0620/33 Oct/Nov 2018

Question 1Atoms, elements and compounds · 8 marks
(a) The electronic structures of five atoms, …
Question 2Stoichiometry · 10 marks
(a) The table shows the concentrations of the ions present in the solution obtained from squid nerve cells and in human blood plasma. ion present solution obtained from squid nerve cells human blood plasma concentration in …
Question 3Acids, bases and salts · 9 marks
(a) Brass is an alloy of copper and zinc. (i) Which one of the following diagrams best represents an alloy? …
Question 4Acids, bases and salts · 9 marks
(a) The structure of compound P is shown. …
Question 5Electrochemistry · 13 marks
(a) When sulfur vapour falls on to a cold surface, small crystals of solid sulfur form. Use the kinetic particle model to describe the arrangement and motion of the particles in sulfur when it is: …
Question 6Acids, bases and salts · 10 marks
(a) The diagrams show the structures of four substances, …
Question 7Metals · 12 marks
A student investigates the rate of reaction of iron powder with dilute hydrochloric acid. dilute hydrochloric acid iron powder (a) Complete the diagram to show the apparatus the student could use to collect and measure the gas produced. Label your …
Question 8Atoms, elements and compounds · 9 marks
The table shows the properties of some Group VII elements. element boiling point in °C density at room temperature in g / cm3 physical state at room temperature fluorine –188 0.0017 chlorine 0.0032 gas bromine 59 3.1 liquid iodine 184 …

Other Chemistry papers from Oct/Nov 2018

Questions students ask

Where can I get the 0620/33 Oct/Nov 2018 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_w18_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 Oct/Nov 2018?

54 marks out of 80, a C needed 38.

Which topics came up in 0620/33 Oct/Nov 2018?

Mostly Acids, bases and salts, Atoms, elements and compounds, Electrochemistry. The full list is in the table above.

Do I need an account to open 0620/33 Oct/Nov 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.