Cambridge O Level · 5070 · Paper 2 · Theory

Chemistry 5070/22 Oct/Nov 2018 past paper

Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, Oct/Nov 2018: the question paper and its official mark scheme, 9 questions worth 85 marks, with the grade thresholds. Free to open, no account needed.

Questions: 9
Marks: 75
Grade A from: 54

Open the question paper Mark scheme

File names: 5070_w18_qp_22 · 5070_w18_ms_22

Grade thresholds for 5070/22 Oct/Nov 2018

The minimum raw marks Cambridge set for each grade on this component (out of 75). Thresholds change every session and variant, so always compare your score with the paper you actually sat.

A	B	C	D	E
54	42	30	23	17

Topics in this paper

Which syllabus chapters 5070/22 Oct/Nov 2018 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
The Periodic Table	2	20
Chemistry of the environment	2	20
Organic chemistry	1	11
Electrochemistry	1	10
Stoichiometry	1	10
Atoms, elements and compounds	1	7
Acids, bases and salts	1	7

Questions in 5070/22 Oct/Nov 2018

Question 1Atoms, elements and compounds · 7 marks
The electronic configurations of five atoms are shown. …
Question 2Electrochemistry · 10 marks
Magnesium reacts with aqueous copper(II) sulfate. Mg(s) + CuSO4(aq) MgSO4(aq) + Cu(s) (a) (i) Explain by referring to the equation, why this is a redox reaction. (ii) Construct the ionic equation for this reaction. (b) Pure copper can be made …
Question 3Acids, bases and salts · 7 marks
The structure of fumaric acid is shown. …
Question 4Organic chemistry · 11 marks
The alkenes are a homologous series of unsaturated hydrocarbons. (a) Describe two characteristics of a homologous series. …
Question 5The Periodic Table · 10 marks
The Periodic Table is an arrangement of elements in groups and periods. (a) What are the factors that determine the position of an element in the Periodic Table? (b) Phosphorus is an element in Group V of the Periodic Table. …
Question 6Chemistry of the environment · 10 marks
Some properties of Group VI elements are shown. element density at room temperature in g / cm3 melting point / °C boiling point / °C electrical conductivity of solid oxygen …
Question 7Chemistry of the environment · 10 marks
Plants remove carbon dioxide from the air during photosynthesis. (a) (i) Complete the equation for photosynthesis. …
Question 8The Periodic Table · 10 marks
Bismuth is a metallic element in Group V of the Periodic Table. (a) Complete the diagram to show the structure and bonding in a typical metal. Label your diagram. (b) Describe three physical properties which are typical of most metals. …
Question 9Stoichiometry · 10 marks
Sulfuric acid reacts with zinc to form zinc sulfate and hydrogen. Zn(s) + H2SO4(aq) ZnSO4(aq) …

Other Chemistry papers from Oct/Nov 2018

Questions students ask

Where can I get the 5070/22 Oct/Nov 2018 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5070_w18_ms_22), and on a wide screen it sits beside the question you are reading.

What was the grade threshold for an A in 5070/22 Oct/Nov 2018?

54 marks out of 75, a C needed 30.

Which topics came up in 5070/22 Oct/Nov 2018?

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

Do I need an account to open 5070/22 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.