Cambridge O Level · 5070 · Paper 2 · Theory

Chemistry 5070/21 Oct/Nov 2024 past paper

Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 1, Oct/Nov 2024: the question paper and its official mark scheme, 7 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.

Questions: 7
Marks: 80
Grade A from: 53

Open the question paper Mark scheme

File names: 5070_w24_qp_21 · 5070_w24_ms_21

Grade thresholds for 5070/21 Oct/Nov 2024

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
53	38	23	17	12

Topics in this paper

Which syllabus chapters 5070/21 Oct/Nov 2024 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Chemistry of the environment	2	24
Metals	1	15
Organic chemistry	1	14
Acids, bases and salts	1	14
Atoms, elements and compounds	1	7
Electrochemistry	1	6

Questions in 5070/21 Oct/Nov 2024

Question 1Atoms, elements and compounds · 7 marks
(a) Fig. 1.1 shows the electronic configurations of five atoms, …
Question 2Metals · 15 marks
(a) Iron is extracted in a blast furnace by the reduction of iron(III) oxide with carbon monoxide. Fe2O3 + 3CO 2Fe + 3CO2 (i) This reaction is a redox reaction. State the meaning of the term redox reaction. (ii) Explain …
Question 3Electrochemistry · 6 marks
Fig. 3.1 shows the apparatus used for the electrolysis of concentrated aqueous sodium chloride using graphite electrodes. power supply + − Fig. 3.1 (a) Label the cathode on Fig. 3.1. (b) Explain why concentrated aqueous sodium chloride conducts electricity. (c) …
Question 4Organic chemistry · 14 marks
This question is about alkanes and alkenes. (a) But-1-ene belongs to the alkene homologous series. Members of the same homologous series differ from one member to the next by a –CH2– group and have similar chemical properties. State two other …
Question 5Chemistry of the environment · 14 marks
A student adds large pieces of copper(II) carbonate to dilute hydrochloric acid. The copper(II) carbonate is in excess. (a) Complete the equation by adding state symbols for the products. CuCO3(s) + 2HCl (aq) CuCl …
Question 6Chemistry of the environment · 10 marks
Fig. 6.1 shows the structures of zinc sulfide and disulfur dichloride. Zinc sulfide has a structure similar to diamond. zinc sulfide zinc atoms sulfur atoms Key: disulfur dichloride Cl S S Cl Fig. …
Question 7Acids, bases and salts · 14 marks
(a) Propanoic acid can be represented by the formula CH3CH2COOH. (i) Propanoic acid reacts with methanol, CH3OH, to produce an ester. Name the ester formed and draw its displayed formula. name displayed formula (ii) Propanoic acid is a weak acid. …

Other Chemistry papers from Oct/Nov 2024

Questions students ask

Where can I get the 5070/21 Oct/Nov 2024 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5070_w24_ms_21), and on a wide screen it sits beside the question you are reading.

What was the grade threshold for an A in 5070/21 Oct/Nov 2024?

53 marks out of 80, a C needed 23.

Which topics came up in 5070/21 Oct/Nov 2024?

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

Do I need an account to open 5070/21 Oct/Nov 2024?

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.