Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)

Chemistry 0620/33 Oct/Nov 2016 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 3, Oct/Nov 2016: 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: 44

Open the question paper Mark scheme

File names: 0620_w16_qp_33 · 0620_w16_ms_33

Grade thresholds for 0620/33 Oct/Nov 2016

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
44	38	30	23	16

Topics in this paper

Which syllabus chapters 0620/33 Oct/Nov 2016 tested, by marks. Each chapter links to every past-paper question on it.

Chapter	Questions	Marks
Acids, bases and salts	2	25
Chemistry of the environment	1	13
The Periodic Table	1	13
Organic chemistry	1	12
Stoichiometry	1	9
Experimental techniques and chemical analysis	1	8

Questions in 0620/33 Oct/Nov 2016

Question 1Experimental techniques and chemical analysis · 8 marks
The diagram shows part of the Periodic Table. Li …
Question 2Chemistry of the environment · 13 marks
A scientist analysed the substances present in a 1 dm3 sample of river water in an agricultural area. The table shows the mass of each ion dissolved in the 1 dm3 sample. name of ion formula of ion mass / …
Question 3Organic chemistry · 12 marks
Ethanol can be manufactured by fermentation and from ethene. (a) Describe the manufacture of ethanol by fermentation and from ethene. In your answer include • the essential conditions required for each reaction, • one or more relevant word equations. (b) …
Question 4Acids, bases and salts · 10 marks
Jelly is a mixture of water and protein chains. water protein chains (a) A crystal of blue dye was placed on top of some jelly. After 30 minutes some of the blue colour could be seen in the jelly. After …
Question 5Acids, bases and salts · 15 marks
Lime (calcium oxide) is made by heating limestone (calcium carbonate). CaCO3(s) CaO(s) + CO2(g) (a) (i) Is this reaction exothermic or endothermic? Explain your answer. (ii) The reaction is reversible. What information in the equation shows that this reaction is …
Question 6The Periodic Table · 13 marks
The Periodic Table is a method of classifying elements. (a) (i) In what order are the elements arranged in the Periodic Table? (ii) How does the character of the elements change from left to right across a period? (iii) Describe …
Question 7Stoichiometry · 9 marks
The diagram shows the changes of state when phosphorus is cooled slowly to room temperature. phosphorus vapour A liquid phosphorus solid phosphorus B (a) Give the names of the changes of state labelled A and …

Other Chemistry papers from Oct/Nov 2016

Questions students ask

Where can I get the 0620/33 Oct/Nov 2016 mark scheme?

Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_w16_ms_33), and on a wide screen it sits beside the question you are reading.

What was the grade threshold for an A in 0620/33 Oct/Nov 2016?

44 marks out of 80, a C needed 30.

Which topics came up in 0620/33 Oct/Nov 2016?

Mostly Acids, bases and salts, Chemistry of the environment, The Periodic Table. The full list is in the table above.

Do I need an account to open 0620/33 Oct/Nov 2016?

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.