Cambridge O Level · 5070 · Paper 2 · Theory

Chemistry 5070/22 May/June 2020 past paper

Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, May/June 2020: the question paper and its official mark scheme, 10 questions worth 85 marks. Free to open, no account needed.

Questions: 10
Marks: 85

Open the question paper Mark scheme

File names: 5070_s20_qp_22 · 5070_s20_ms_22

Topics in this paper

Which syllabus chapters 5070/22 May/June 2020 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Metals	2	19
Stoichiometry	2	16
Organic chemistry	2	16
States of matter	1	12
Chemistry of the environment	1	10
Chemical energetics	1	7
Atoms, elements and compounds	1	5

Questions in 5070/22 May/June 2020

Question 1Atoms, elements and compounds · 5 marks
Choose from the following chlorides to answer the questions. aluminium chloride ammonium chloride calcium chloride hydrogen chloride iron(III) chloride silver chloride sodium chloride Each chloride may be used once, more than once or not at all. Which chloride: (a) contains …
Question 2Chemical energetics · 7 marks
Hydrogen reacts with oxygen as shown in the equation. …
Question 3States of matter · 12 marks
The table shows some properties of five esters. name structure relative molecular mass melting point / °C boiling point / °C methyl methanoate HCOOCH3 …
Question 4Metals · 9 marks
Part of the reactivity series is shown. magnesium more reactive aluminium zinc chromium iron less reactive (a) Predict the names of the products formed when chromium reacts with dilute hydrochloric acid. (b) Powdered zinc is added to aqueous chromium(III) ions, …
Question 5Stoichiometry · 6 marks
Sulfuric acid, H2SO4, reacts with sodium hydroxide, NaOH, as shown. H2SO4(aq) + 2NaOH(aq) Na2SO4(aq) …
Question 6Organic chemistry · 6 marks
The structures of two alcohols are shown. …
Question 7Stoichiometry · 10 marks
This question is about some of the oxides of the elements in Period 3. (a) State the electronic configuration of the negative ion in sodium oxide, Na2O. (b) Magnesium oxide is an insoluble base that can be used to prepare …
Question 8Metals · 10 marks
Copper is a transition element. (a) State two properties that are typical of the compounds of a transition element. …
Question 9Chemistry of the environment · 10 marks
Sulfur dioxide is a colourless gas which can be found in air. (a) State one environmental problem caused by the presence of sulfur dioxide in air. (b) When heated in air iron pyrite, FeS2, reacts with oxygen. Sulfur dioxide and …
Question 10Organic chemistry · 10 marks
Fractional distillation and cracking are important processes in the conversion of petroleum (crude oil) into useful hydrocarbons. (a) Fractional distillation separates petroleum (crude oil) into fractions such as bitumen and naphtha. (i) Which physical property allows the petroleum (crude oil) …

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Questions students ask

Where can I get the 5070/22 May/June 2020 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5070_s20_ms_22), and on a wide screen it sits beside the question you are reading.

Which topics came up in 5070/22 May/June 2020?

Mostly Metals, Stoichiometry, Organic chemistry. The full list is in the table above.

Do I need an account to open 5070/22 May/June 2020?

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.