Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/12 Oct/Nov 2017 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 2, Oct/Nov 2017: 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
- 29
File names: 5070_w17_qp_12 · 5070_w17_ms_12
Grade thresholds for 5070/12 Oct/Nov 2017
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 |
|---|---|---|---|---|
| 29 | 23 | 18 | 16 | 14 |
Topics in this paper
Which syllabus chapters 5070/12 Oct/Nov 2017 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/12 Oct/Nov 2017
- Question 1
A mixture of sand and sodium chloride can be separated in three steps. Step 1 is to add water to the mixture. The diagram shows step 2 and step 3. Where is pure sodium chloride collected? step 2 step 3 …
- Question 2
The results of two tests on solution X are shown. reagent added observation on adding a few drops of reagent observation on adding an excess of reagent aqueous sodium hydroxide white precipitate precipitate dissolves aqueous ammonia white precipitate precipitate remains …
- Question 3
Which diagram shows the arrangement of particles inside a balloon containing a mixture of the gases nitrogen and oxygen? …
- Question 4
A student follows the rate of the reaction between marble chips, CaCO3, and dilute hydrochloric acid. CaCO3 + 2HCl → CaCl 2 + CO2 + H2O Which diagrams show apparatus that is suitable for this experiment? measuring cylinder hydrochloric acid …
- Question 5
A chemist wishes to separate and identify a mixture of substances using paper chromatography. The diagram shows the apparatus used. The solvent is water. solvent The solvent front is allowed to reach the top of the paper before the chemist …
- Question 6
Which particle contains the same number of both neutrons and electrons? …
- Question 7
Which statement is correct for all metals? A They are hard and brittle. B They are made up of a lattice of positive and negative ions. C They conduct electricity by movement of electrons. D They conduct electricity by movement …
- Question 8
X represents the element of atomic number 8 and Y represents the element of atomic number 19. The two elements react together to form a compound. Which row is correct for the compound formed? formula type of bonding A Y2X …
- Question 9
The empirical formula of a liquid compound is C2H4O. To find the empirical formula, it is necessary to know A the density of the compound. B the percentage composition by mass of the compound. C the relative molecular mass of …
- Question 10
25.0 g of hydrated copper(II) sulfate crystals are heated to produce anhydrous copper(II) sulfate and water vapour. CuSO4.5H2O(s) → CuSO4(s) + 5H2O(g) What is the mass of anhydrous copper(II) sulfate formed? [Mr: CuSO4, …
- Question 11
Which sample contains the most atoms? A 0.5 moles of water B 1.0 moles of carbon dioxide C 1.0 moles of methane D 2.0 moles of hydrogen chloride
- Question 12
The relative atomic mass of chlorine is 35.5. What is the mass of 2 moles of chlorine gas? …
- Question 13
One mole of an organic compound, Q, is completely burnt in oxygen and produces exactly three moles of water. Which compound is Q? A butane, C4H10 B ethanol, C2H5OH C propane, C3H8 D propanol, C3H7OH
- Question 14
In an experiment, 1 mol of powdered copper and 1 mol of powdered zinc are placed in a flask. Dilute acid, containing 1 mol of acid, is added to the flask. The flask is left until all the reactions, if …
- Question 15
A simple cell can be made using two different metals as the electrodes and an aqueous solution as the electrolyte. Which statements about simple cells are correct? 1 A greater voltage is produced using magnesium and silver than using magnesium …
- Question 16
Magnesium can be produced by electrolysis of molten magnesium chloride, MgCl 2. What are the equations for the reactions that occur at the positive electrode and at the negative electrode? positive electrode negative electrode A 2Cl – → Cl …
- Question 17
Three different solutions were electrolysed using inert electrodes. solution 1 aqueous sodium chloride solution 2 concentrated hydrochloric acid solution 3 dilute sulfuric acid Which solutions produce hydrogen at the negative electrode? …
- Question 18
Compound Y reacts with oxygen. This reaction has a positive enthalpy change of reaction, ∆H. What information can be deduced about Y and its reaction with oxygen? A Compound Y can be used as a fuel. B Compound Y could …
- Question 19
The formation of liquid water from hydrogen and oxygen may occur in three stages. …
- Question 20
Sulfur trioxide is produced by the following reaction. 2SO2(g) + O2(g) 2SO3(g) …
- Question 21
Magnesium reacts with dilute sulfuric acid. Mg(s) + H2SO4(aq) → MgSO4(aq) + H2(g) Two experiments were carried out. experiment …
- Question 22
Which statement is correct for both aluminium and iron? A Both form 2+ ions. B Both have amphoteric oxides. C The manufacture of both metals involves the reduction of the metal ions. D They are both normally manufactured by electrolysis.
- Question 23
A household cleaning compound is used to remove calcium carbonate from bathroom surfaces. The compound reacts with the calcium carbonate to form a soluble salt, carbon dioxide and water. What is the pH of this cleaning compound? A pH 2 …
- Question 24
Dilute hydrochloric acid is added separately to samples of copper, copper(II) oxide and copper(II) carbonate. Which row correctly shows whether copper(II) chloride is produced? Cu CuO CuCO3 …
- Question 25
Which ions are present when hydrochloric acid has exactly neutralised aqueous sodium hydroxide? A Na+, Cl –, H+ and OH– B Na+, Cl – and H+ only C Na+ and Cl – only D H+ and OH– only
- Question 26
Which experiment will result in the formation of a white precipitate? A aqueous barium nitrate added to aqueous sodium chloride B aqueous sodium carbonate added to aqueous calcium chloride C carbon dioxide passed through aqueous potassium chloride D dilute hydrochloric …
- Question 27
Which statement about both the Group I and Group VII elements is correct? A They conduct electricity when molten. B They form covalent compounds when bonded to non-metals. C They exist as diatomic molecules. D When Group I elements combine …
- Question 28
The elements helium, argon and neon are noble gases. Which statement is correct? A All these elements have eight electrons in their outer shell. B Argon is used to react with impurities in the manufacture of steel. C Helium is …
- Question 29
Which row shows the correct catalyst for each industrial process? manufacture of sulfuric acid manufacture of ammonia manufacture of margarine A nickel iron vanadium(V) oxide B nickel vanadium(V) oxide iron C vanadium(V) oxide iron nickel D vanadium(V) oxide nickel iron
- Question 30
In the solid state, germanium has the same structure as diamond. What is the likely melting point of germanium? A above …
- Question 31
Aluminium is a metal that is often used to make caps for bottles. When thrown away and buried in the soil, the caps do not corrode. Why is this? A Aluminium does not react with acids. B Aluminium does not …
- Question 32
Which statement about Group I metals is correct? A They are hard compared with most other metals. B They form coloured compounds. C They have high densities compared with most other metals. D They only form ions with a charge …
- Question 33
CFC compounds were used as aerosol propellants. The structure of one CFC compound is shown. …
- Question 34
Dry air is a mixture of gases of which 99% is nitrogen and oxygen. What is the main constituent of the remaining 1%? A argon B helium C hydrogen D water vapour
- Question 35
Why is chlorine added to the water supply? A Chlorine is used to desalinate the water. B Chlorine kills bacteria that may be present in the water. C Chlorine precipitates solids that may be present in the water. D Chlorine …
- Question 36
When the alcohol of molecular formula C4H10O is oxidised, what is the molecular formula of the acid formed? …
- Question 37
The diagrams show the structures of five hydrocarbons. …
- Question 38
Which alcohol and acid will react together to make the ester CH3COOC2H5? A CH3OH and CH3COOH B CH3OH and C2H5COOH C C2H5OH and CH3COOH D C2H5OH and C2H5COOH
- Question 39
Which compound has a pH of less than 7 in aqueous solution? …
- Question 40
Which statement about polymers is correct? A Nylon and Terylene are produced by addition polymerisation. B Nylon and Terylene both contain the amide linkage. C Simple sugars can be produced by hydrolysing proteins. D Starch contains the elements carbon, hydrogen …
Other Chemistry papers from Oct/Nov 2017
- 5070/11 Multiple choice
- 5070/21 Theory
- 5070/22 Theory
- 5070/41 Alternative to Practical
- 5070/42 Alternative to Practical