Cambridge O Level · 5070 · Paper 2 · Theory

Chemistry 5070/22 Oct/Nov 2017 past paper

Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, Oct/Nov 2017: 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: 53

Open the question paper Mark scheme

File names: 5070_w17_qp_22 · 5070_w17_ms_22

Grade thresholds for 5070/22 Oct/Nov 2017

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
53	40	27	21	14

Topics in this paper

Which syllabus chapters 5070/22 Oct/Nov 2017 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Atoms, elements and compounds	2	22
Chemical reactions	2	20
The Periodic Table	1	10
Chemistry of the environment	1	10
Metals	1	9
Organic chemistry	1	9
Acids, bases and salts	1	5

Questions in 5070/22 Oct/Nov 2017

Question 1Atoms, elements and compounds · 9 marks
A1 (a) Choose from the following elements to answer the questions. aluminium carbon hydrogen iron magnesium nitrogen oxygen sodium vanadium Each element may be used once, more than once or not at all. Which element: (i) is a catalyst in …
Question 2Atoms, elements and compounds · 13 marks
A2 Sodium chloride, NaCl, and magnesium chloride, MgCl2, are both ionic compounds. (a) Describe the arrangement of the ions and the type of attractive forces between the ions in solid magnesium chloride. arrangement type of attractive forces (b) Explain why …
Question 3Metals · 9 marks
A3 Metals have characteristic physical properties such as good electrical and thermal conductivity. (a) Give two other physical properties which are characteristic of metals. …
Question 4Organic chemistry · 9 marks
A4 Lavandulol is found in lavender plants. CH3 CH3 CH3 CH2 C C CH CH CH2OH CH2 (a) (i) Give the molecular formula for lavandulol. (ii) Lavandulol contains an –OH group. Name the homologous series of compounds which contain the …
Question 5Acids, bases and salts · 5 marks
A5 Dilute ethanoic acid reacts with sodium carbonate. Sodium ethanoate, CH3COONa, and two other compounds are formed. (a) Construct the equation for this reaction. (b) The reaction of dilute ethanoic acid with sodium carbonate is endothermic. Explain in terms of …
Question 6Chemical reactions · 10 marks
B6 At high temperatures, hydrogen reacts with iodine to form hydrogen iodide. …
Question 7The Periodic Table · 10 marks
B7 The table shows the melting points and relative electrical conductivities of three elements from Period 3 of the Periodic Table. property element magnesium silicon sulfur melting point …
Question 8Chemistry of the environment · 10 marks
B8 Potassium nitrate, potassium sulfate and potassium phosphate are used in fertilisers. (a) Calculate the percentage by mass of potassium in potassium sulfate, K2SO4. % by mass (b) Describe a test for sulfate ions. test result (c) Explain why nitrates …
Question 9Chemical reactions · 10 marks
B9 Nitrogen(V) oxide decomposes on heating to form nitrogen(IV) oxide and oxygen. 2N2O5(g) 4NO2(g) …

Other Chemistry papers from Oct/Nov 2017

Questions students ask

Where can I get the 5070/22 Oct/Nov 2017 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5070_w17_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 2017?

53 marks out of 75, a C needed 27.

Which topics came up in 5070/22 Oct/Nov 2017?

Mostly Atoms, elements and compounds, Chemical reactions, The Periodic Table. The full list is in the table above.

Do I need an account to open 5070/22 Oct/Nov 2017?

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.