Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/11 Oct/Nov 2016 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 1, Oct/Nov 2016: the question paper and its official mark scheme, 40 questions, with the grade thresholds. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
- Grade A from
- 30
File names: 5070_w16_qp_11 · 5070_w16_ms_11
Grade thresholds for 5070/11 Oct/Nov 2016
The minimum raw marks Cambridge set for each grade on this component (out of 40). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E |
|---|---|---|---|---|
| 30 | 24 | 19 | 17 | 15 |
Topics in this paper
Which syllabus chapters 5070/11 Oct/Nov 2016 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/11 Oct/Nov 2016
- Question 1
A student is given only the nucleon number of an atom. What can be deduced about the structure of the atom? A number of neutrons plus protons B number of neutrons only C number of protons plus electrons D number …
- Question 2
Two experiments were carried out. In experiment 1, ammonium carbonate was reacted with dilute hydrochloric acid. In experiment 2, ammonium carbonate was heated with aqueous sodium hydroxide. In each experiment, the gas evolved was tested with damp blue litmus paper …
- Question 3
A paper chromatography experiment is carried out to find an Rf value for Fe3+(aq). The result is shown. solvent front starting line y x Fe3+ To make the spot containing Fe3+(aq) more visible, the paper is sprayed with aqueous sodium …
- Question 4
The graph gives the melting points (m.p.) of mixtures of lead and tin. …
- Question 5
Some students wrote three statements about the bonding in a molecule of ammonia, NH3. 1 A nitrogen atom has three outer electrons so all outer electrons are involved in bonding. 2 A nitrogen atom has five outer electrons so two …
- Question 6
Which diagram correctly shows the arrangement of the ions in solid sodium chloride? A Cl – Cl – Cl – Cl – Na+ Na+ Na+ Na+ B Na+ Na+ Cl – Cl – Na+ Na+ Cl – Cl – C …
- Question 7
The table shows some properties of four solid elements. Which element could be graphite? electrical conductivity melting point …
- Question 8
Which statement about chlorine atoms and chloride ions is correct? A They are both isotopes of chlorine. B They undergo the same chemical reactions. C They have the same number of protons. D They have the same physical properties.
- Question 9
Four gases are listed. 1 CH4 2 NH3 3 CO2 …
- Question 10
Which diagram best represents the structure of a solid metal? …
- Question 11
A compound containing only the elements carbon and hydrogen has 80.0% by mass of carbon. What is its empirical formula? …
- Question 12
An ionic compound has the formula XY, where Y is a non-metal. Which statement about XY is correct? A An atom of X has lost at least one electron to form a positive ion. B Both X and Y share …
- Question 13
In an experiment, 1 cm3 of a gaseous hydrocarbon, Z, requires 4 cm3 of oxygen for complete combustion to give 3 cm3 of carbon dioxide. All gas volumes are measured at r.t.p. Which formula represents …
- Question 14
Aqueous copper(II) sulfate is electrolysed using copper as the positive electrode and carbon as the negative electrode. Which row gives correct information about this electrolysis? positive electrode negative electrode electrolyte A electrode dissolves copper deposited stays a constant blue colour …
- Question 15
Molten salts of four metals are electrolysed. The ions of which metal require the smallest number of electrons for one mole of atoms to be liberated during electrolysis? A aluminium B calcium C iron D sodium
- Question 16
Which two products are formed during photosynthesis? A carbon dioxide and water B chlorophyll and oxygen C glucose and oxygen D glucose and water
- Question 17
A student investigates how the concentration of a reagent affects the rate of a chemical reaction. Which piece of apparatus is essential for all rate investigations? A balance B gas syringe C measuring cylinder D stopwatch
- Question 18
Gold is used as a catalyst in some chemical reactions. In these reactions, gold • helps reduce the energy costs of the reaction. • increases the yield of the reaction. • is unchanged at the end of the reaction. • …
- Question 19
The table shows some properties of four metal chlorides. Which row is magnesium chloride? colour solubility in water method of preparation A green insoluble precipitation B green soluble metal and acid C white insoluble precipitation D white soluble metal and …
- Question 20
A lump of element X can be cut by a knife. During its reaction with water, X floats and melts. What is X? A calcium B copper C magnesium D potassium
- Question 21
Which row shows the pH values for 0.1 mol / dm3 solutions of ammonia, hydrochloric acid, sodium chloride and sodium hydroxide? pH values NH3 HCl NaCl NaOH …
- Question 22
The diagram shows the apparatus used to extract aluminium from aluminium oxide. carbon electrodes electrolyte aluminium Which statement about this process is correct? A The electrolyte is a solid mixture of aluminium oxide and cryolite. B The electrolyte is aluminium …
- Question 23
A student has five reagents. • dilute hydrochloric acid • dilute sulfuric acid • dilute nitric acid • solid calcium carbonate • solid copper(II) carbonate How many soluble salts can be prepared? …
- Question 24
Which reaction is not a redox reaction? A CaCO3 → CaO + CO2 …
- Question 25
Some properties which make elements different from each other are listed. 1 metallic character 2 number of electron shells in an atom 3 number of protons in an atom 4 total number of electrons in an atom Which two properties …
- Question 26
Aqueous copper(II) sulfate solution is placed in an iron container and left to stand for several days. Which statement describes what happens? A Atmospheric oxygen reacts with the copper(II) sulfate to give black copper(II) oxide. B Some fine iron particles …
- Question 27
Which equation shows a reaction that will occur at room temperature and pressure? A Br2(aq) + 2NaCl (aq) → 2NaBr(aq) + Cl 2(aq) B Br2(aq) + 2NaI(aq) → 2NaBr(aq) + I2(aq) C I2(aq) + 2NaCl (aq) → 2NaI(aq) + Cl …
- Question 28
Attaching pieces of magnesium to underground iron pipes can protect the iron from corrosion. Which reaction protects the iron from corrosion? A Fe2+(aq) …
- Question 29
Which compound is used as a fertiliser? A ammonium sulfate B barium carbonate C calcium hydroxide D lead chloride
- Question 30
In the Haber process, hydrogen and nitrogen react to form ammonia in the presence of a catalyst. Which of the two reactants is obtained by fractional distillation and what is the catalyst used in the Haber process? obtained by fractional …
- Question 31
An element, Z, from Group II of the Periodic Table reacts with chlorine, an element from Group VII. What is the formula of the ionic compound formed? A ZCl 2 B Z2Cl C Z2Cl 7 D Z7Cl 2
- Question 32
The table shows treatments used for drinking water supplies and reasons for using those treatments. Which row is correct? method of water treatment reason A chlorination removes tastes B desalination removes solids C filtration removes salt D use of carbon …
- Question 33
The table shows some atmospheric pollutants and their possible effects. Which row is not correct? pollutant effect A CFCs cause depletion of the ozone layer B CO2 forms photochemical smog C CO is poisonous to humans D NO2 forms acid …
- Question 34
How many moles of ethanoic acid, CH3CO2H, react with one mole of magnesium? …
- Question 35
With which substance will ethene react to form more than one product? A argon B hydrogen C oxygen D steam
- Question 36
The diagram shows the structures of two hydrocarbons, X and …
- Question 37
The diagram shows the structure of an ester. …
- Question 38
An unsaturated hydrocarbon with six carbon atoms contains only three C=C double bonds. This hydrocarbon is reacted with excess hydrogen at a high temperature. What is the formula of the resulting hydrocarbon? …
- Question 39
Compound Q has the formula C4H10. Which statement about compound Q is correct? A It undergoes addition reactions with chlorine. B It has a lower boiling point than methane. C It has the same general formula as methane. D There …
- Question 40
Hydrolysis of R, a macromolecule, gives a mixture of amino acids. What is …
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