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2010

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

Chemistry 0620/31 Oct/Nov 2010 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Extended)), variant 1, Oct/Nov 2010: the question paper and its official mark scheme, 8 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.

Questions
8
Marks
80
Grade A from
42
Open the question paperMark scheme

File names: 0620_w10_qp_31 · 0620_w10_ms_31

Grade thresholds for 0620/31 Oct/Nov 2010

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.

ABCDE
42026018

Topics in this paper

Which syllabus chapters 0620/31 Oct/Nov 2010 tested, by marks. Each chapter links to every past-paper question on it.

ChapterQuestionsMarks
Chemistry of the environment217
Metals115
Chemical reactions113
Acids, bases and salts110
Atoms, elements and compounds19
Organic chemistry19
Electrochemistry17

Questions in 0620/31 Oct/Nov 2010

  1. Question 1Atoms, elements and compounds · 9 marks

    For Examiner’s Use 1 The table gives the composition of three particles. particle number of protons number of electrons number of neutrons …

  2. Question 2Metals · 15 marks

    For Examiner’s Use 2 About 4000 years ago the Bronze Age started in Britain. Bronze is an alloy of copper and tin. (a) (i) Suggest a reason why a bronze axe was better than a copper axe. (ii) Brass is …

  3. Question 3Electrochemistry · 7 marks

    For Examiner’s Use 3 The diagram shows a cell. This is a device which produces electrical energy. The reaction in a cell is a redox reaction and involves electron transfer. filter paper soaked in sodium chloride solution to complete the …

  4. Question 4Chemistry of the environment · 9 marks

    For Examiner’s Use 4 Ammonia is an important industrial chemical. (a) (i) Give the electron structure of an atom of nitrogen. (ii) Use this electronic structure, rather than the valency of nitrogen, to explain why the formula of ammonia is …

  5. Question 5Organic chemistry · 9 marks

    For Examiner’s Use 5 Monomers polymerise to form polymers or macromolecules. (a) (i) Explain the term polymerise. (ii) There are two types of polymerisation - addition and condensation. What is the difference between them? (b) An important monomer is chloroethene …

  6. Question 6Chemical reactions · 13 marks

    For Examiner’s Use 6 The table below shows the elements in the second period of the Periodic Table and some of their oxidation states in their most common compounds. element Li Be …

  7. Question 7Chemistry of the environment · 8 marks

    For Examiner’s Use 7 The diagram shows part of the carbon cycle. This includes some of the processes which determine the percentage of carbon dioxide in the atmosphere. carbon dioxide in the atmosphere photosynthesis combustion respiration (i) Carbon dioxide is …

  8. Question 8Acids, bases and salts · 10 marks

    For Examiner’s Use 8 Soluble salts can be made using a base and an acid. (a) Complete this method of preparing dry crystals of the soluble salt cobalt(II) chloride-6-water from the insoluble base cobalt(II) carbonate. Step 1 Add an excess …

Other Chemistry papers from Oct/Nov 2010

Questions students ask

Where can I get the 0620/31 Oct/Nov 2010 mark scheme?
Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_w10_ms_31), and on a wide screen it sits beside the question you are reading.
What was the grade threshold for an A in 0620/31 Oct/Nov 2010?
42 marks out of 80, a C needed 26.
Which topics came up in 0620/31 Oct/Nov 2010?
Mostly Chemistry of the environment, Metals, Chemical reactions. The full list is in the table above.
Do I need an account to open 0620/31 Oct/Nov 2010?
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.