Cambridge O Level · 5070 · Paper 2 · Theory

Chemistry 5070/22 Oct/Nov 2019 past paper

Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, Oct/Nov 2019: 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: 56

Open the question paper Mark scheme

File names: 5070_w19_qp_22 · 5070_w19_ms_22

Grade thresholds for 5070/22 Oct/Nov 2019

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
56	44	31	25	19

Topics in this paper

Which syllabus chapters 5070/22 Oct/Nov 2019 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Atoms, elements and compounds	2	20
Acids, bases and salts	2	18
Chemical reactions	1	13
Chemical energetics	1	10
Experimental techniques and chemical analysis	1	10
Organic chemistry	1	9
The Periodic Table	1	5

Questions in 5070/22 Oct/Nov 2019

Question 1The Periodic Table · 5 marks
The diagram shows part of the Periodic Table. He …
Question 2Atoms, elements and compounds · 10 marks
Magnesium is a metal. (a) State two properties which are characteristic of most metals. …
Question 3Organic chemistry · 9 marks
Petroleum (crude oil) is a mixture of hydrocarbons. (a) Describe and explain how petroleum is separated into different hydrocarbon fractions. In your answer include a description of fractional distillation in an oil refinery. You may draw a labelled diagram. (b) …
Question 4Chemical reactions · 13 marks
The equation shows the reaction of calcium carbonate with hydrochloric acid. CaCO3(s) + 2HCl (aq) CaCl 2(aq) + CO2(g) …
Question 5Acids, bases and salts · 8 marks
The table shows some properties of four Group I elements. element melting point / ºC relative thermal conductivity atomic radius / nm lithium …
Question 6Acids, bases and salts · 10 marks
Butanoic acid, C3H7COOH, is a carboxylic acid. (a) Draw the structure of butanoic acid to show all of the atoms and all of the bonds. (b) Describe the movement and arrangement of the particles in liquid butanoic acid. movement arrangement …
Question 7Chemical energetics · 10 marks
Sulfuric acid is made by the Contact process. 2SO2(g) + O2(g) 2SO3(g) …
Question 8Atoms, elements and compounds · 10 marks
Phosphorus is an element in Group V of the Periodic Table. (a) One of the isotopes of phosphorus is: …
Question 9Experimental techniques and chemical analysis · 10 marks
Proteins are natural polymers. (a) Name one other natural polymer. (b) Describe how proteins can be hydrolysed to amino acids. (c) The structure of the amino acid alanine is shown. H2N COOH CH3 C H Alanine can be polymerised to …

Other Chemistry papers from Oct/Nov 2019

Questions students ask

Where can I get the 5070/22 Oct/Nov 2019 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5070_w19_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 2019?

56 marks out of 75, a C needed 31.

Which topics came up in 5070/22 Oct/Nov 2019?

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

Do I need an account to open 5070/22 Oct/Nov 2019?

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.