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2010

Cambridge O Level · 5070 · Paper 2 · Theory

Chemistry 5070/21 Oct/Nov 2010 past paper

Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 1, Oct/Nov 2010: the question paper and its official mark scheme, 9 questions worth 85 marks. Free to open, no account needed.

Questions
9
Marks
85
Open the question paperMark scheme

File names: 5070_w10_qp_21 · 5070_w10_ms_21

Topics in this paper

Which syllabus chapters 5070/21 Oct/Nov 2010 tested, by marks. Each chapter links to every past-paper question on it.

ChapterQuestionsMarks
Organic chemistry327
Chemical reactions112
Metals110
The Periodic Table110
Stoichiometry110
Atoms, elements and compounds19
Electrochemistry17

Questions in 5070/21 Oct/Nov 2010

  1. Question 1Organic chemistry · 7 marks

    A1 The structural formulae of some compounds containing the element carbon are shown. …

  2. Question 2Atoms, elements and compounds · 9 marks

    For Examiner’s Use A2 The symbols of some atoms and ions including their nucleon number and proton number are shown below. (a) Which one of these atoms or ions has the greatest number of protons? (b) Which two of these …

  3. Question 3Chemical reactions · 12 marks

    For Examiner’s Use A3 Carbonyl chloride, COCl 2, is a colourless, poisonous gas formed when carbon monoxide and chlorine combine in the presence of sunlight. The forward reaction is exothermic. CO(g) + Cl2(g) COCl2(g) (a) Predict and explain how each …

  4. Question 4Metals · 10 marks

    For Examiner’s Use A4 Many inks contain salts of the metals potassium, iron, cobalt and nickel in addition to ethanoic acid and gallic acid. (a) (i) State two differences in the physical properties of the metals potassium and iron. (ii) …

  5. Question 5Electrochemistry · 7 marks

    For Examiner’s Use A5 A student electrolysed an aqueous solution of potassium bromide using carbon electrodes. (a) Draw a labelled diagram of a suitable apparatus that can be used for this electrolysis. (b) The ions present in an aqueous solution …

  6. Question 6The Periodic Table · 10 marks

    B6 Part of Mendeleev’s original Periodic Table showing an arrangement of elements according to their similar properties is shown below. The numbers are the atomic masses of the elements. Fe = 56 Ni / Co …

  7. Question 7Organic chemistry · 10 marks

    For Examiner’s Use B7 The table shows the boiling points of the first four members of the alkane homologous series. It also shows the enthalpy changes when these alkanes undergo complete combustion. alkane boiling point /oC enthalpy change of combustion …

  8. Question 8Organic chemistry · 10 marks

    For Examiner’s Use B8 Proteins are naturally occurring macromolecules. (a) (i) What do you understand by the term macromolecule? (ii) Name another naturally occurring macromolecule. (b) Proteins can be hydrolysed to amino acids. State a suitable reagent and condition for …

  9. Question 9Stoichiometry · 10 marks

    For Examiner’s Use B9 Phosphine, PH3, is a gas which has a smell of garlic. It is formed when white phosphorus is warmed with aqueous sodium hydroxide. 4P + 3NaOH + 3H2O PH3 + 3NaH2PO2 (a) Draw a ‘dot-and-cross’ diagram …

Other Chemistry papers from Oct/Nov 2010

Questions students ask

Where can I get the 5070/21 Oct/Nov 2010 mark scheme?
Open the mark scheme above - it is the official Cambridge scheme for this exact paper (5070_w10_ms_21), and on a wide screen it sits beside the question you are reading.
Which topics came up in 5070/21 Oct/Nov 2010?
Mostly Organic chemistry, Chemical reactions, Metals. The full list is in the table above.
Do I need an account to open 5070/21 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.