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2011

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

Chemistry 0620/33 Oct/Nov 2011 past paper

Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Extended)), variant 3, Oct/Nov 2011: 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
41
Open the question paperMark scheme

File names: 0620_w11_qp_33 · 0620_w11_ms_33

Grade thresholds for 0620/33 Oct/Nov 2011

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
41023017

Topics in this paper

Which syllabus chapters 0620/33 Oct/Nov 2011 tested, by marks. Each chapter links to every past-paper question on it.

ChapterQuestionsMarks
Chemistry of the environment225
Stoichiometry114
Chemical energetics112
The Periodic Table110
States of matter110
Metals19

Questions in 0620/33 Oct/Nov 2011

  1. Question 1The Periodic Table · 10 marks

    For Examiner’s Use 1 Use your copy of the Periodic Table to answer these questions. (a) Choose an element from the Periodic Table to match each description. You may give either the name or the symbol. (i) It is the …

  2. Question 2States of matter · 10 marks

    For Examiner’s Use 2 Starch, a complex carbohydrate, is a natural macromolecule or polymer. It can be formed from its monomer by condensation polymerisation. (a) (i) Explain the terms: monomer condensation polymerisation (ii) Draw the structural formula of starch to …

  3. Question 3Chemistry of the environment · 13 marks

    For Examiner’s Use 3 Fertilisers are used to promote plant growth. Two fertilisers are ammonium phosphate, (NH4)3PO4, and calcium dihydrogenphosphate, Ca(H2PO4)2. (a) Describe a test to distinguish between these two fertilisers. test result (b) Many fertilisers are manufactured from ammonia. …

  4. Question 4Metals · 9 marks

    For Examiner’s Use 4 (a) Steel rusting is an example of an oxidation reaction. (i) Defi ne the term steel. (ii) Defi ne oxidation in terms of electron transfer. (b) A method of preventing steel rusting is sacrifi cial protection. …

  5. Question 5Chemistry of the environment · 12 marks

    For Examiner’s Use 5 The reactions in this question are all examples of photochemical reactions. (a) Explain the phrase photochemical reaction. (b) Many millions of years ago, the Earth’s atmosphere was rich in carbon dioxide and contained negligible amounts of …

  6. Question 6Chemical energetics · 12 marks

    For Examiner’s Use 6 Nickel is a transition element. (a) Predict three differences in the chemical properties of nickel and barium. (b) Nickel ores are converted into nickel(II) oxide. This can be reduced to impure nickel by heating with carbon. …

  7. Question 7Stoichiometry · 14 marks

    For Examiner’s Use 7 The alkenes are a series of unsaturated hydrocarbons. They have the general molecular formula CnH2n. (a) Deduce the molecular formula of an alkene which has a relative molecular mass of 126. Show your working. (b) The …

Other Chemistry papers from Oct/Nov 2011

Questions students ask

Where can I get the 0620/33 Oct/Nov 2011 mark scheme?
Open the mark scheme above - it is the official Cambridge scheme for this exact paper (0620_w11_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 2011?
41 marks out of 80, a C needed 23.
Which topics came up in 0620/33 Oct/Nov 2011?
Mostly Chemistry of the environment, Stoichiometry, Chemical energetics. The full list is in the table above.
Do I need an account to open 0620/33 Oct/Nov 2011?
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.