Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/11 Oct/Nov 2014 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 1, Oct/Nov 2014: 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_w14_qp_11 · 5070_w14_ms_11
Grade thresholds for 5070/11 Oct/Nov 2014
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 | 23 | 18 | 16 | 14 |
Topics in this paper
Which syllabus chapters 5070/11 Oct/Nov 2014 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/11 Oct/Nov 2014
- Question 1
Calcium carbonate reacts with hydrochloric acid, producing carbon dioxide gas. CaCO3(s) + 2HCl (aq) → CaCl 2(aq) …
- Question 2
Which compound when in aqueous solution will produce a red / brown precipitate on the addition of an aqueous solution of Fe3+ ions? A hydrogen chloride B sodium chloride C sodium hydroxide D sulfur trioxide
- Question 3
What is the correct sequence for obtaining pure salt from a mixture of sand and salt? A add water, evaporate B add water, filter C add water, filter, evaporate D filter, add water, evaporate
- Question 4
The diagram shows the structure of which element in Period 3? A aluminium B magnesium C silicon D sodium
- Question 5
The table contains information on the structure of four particles. particle proton number number of protons number of neutrons number of electrons Mg …
- Question 6
Which statement describes ionic bonding? A a lattice of ions in a sea of electrons B electrostatic attraction between oppositely charged ions C the sharing of electrons between atoms to gain a noble gas configuration D the transfer of electrons …
- Question 7
The experiment shown is used to test potassium bromide crystals. electrodes beaker lamp potassium bromide crystals The lamp does not light. Distilled water is then added to the beaker and the lamp lights. Which statement explains these results? A Electrons …
- Question 8
Why does ammonia gas diffuse faster than hydrogen chloride gas? A Ammonia has a higher boiling point than hydrogen chloride. B Ammonia is a base, hydrogen chloride is an acid. C The ammonia molecule contains more atoms than a hydrogen …
- Question 9
Which molecule has only four electrons involved in covalent bonds? …
- Question 10
A volume of ethane, C2H6, at r.t.p. has a mass of 20 g. What is the mass of an equal volume of propene, C3H6, at …
- Question 11
Which element requires the largest number of electrons for one mole of the metal to be formed from its aqueous ions during electrolysis? A aluminium B calcium C copper D sodium
- Question 12
Which changes are observed during the electrolysis of aqueous copper(II) sulfate using copper electrodes? 1 A pink solid is deposited on the negative electrode. 2 Bubbles form on the positive electrode. 3 The colour of the solution does not change. …
- Question 13
Analysis of a sample of an oxide of nitrogen gave the following data. ● percentage by mass of nitrogen 47% ● percentage by mass of oxygen 53% What is the empirical formula of this oxide? [Ar: …
- Question 14
Petroleum is a mixture of hydrocarbons which can be separated into fractions by fractional distillation. Which row shows the fractions in order of decreasing boiling point? highest b.p. lowest b.p. A diesel paraffin naphtha petrol B paraffin naphtha petrol diesel …
- Question 15
Which is not true about the process of photosynthesis? A Carbon dioxide and water react in …
- Question 16
The equation shows the reaction for the manufacture of ammonia. …
- Question 17
Which ionic equation represents a redox reaction? A Ag+ + Cl – → AgCl B Ba2+ …
- Question 18
The equation shows the reaction for the formation of sulfur trioxide using a catalyst. 2SO2(g) + O2(g) 2SO3(g) …
- Question 19
To which substance is dilute sulfuric acid added to prepare lead(II) sulfate? A aqueous lead(II) nitrate B lead foil C powdered lead(II) carbonate D powdered lead(II) oxide
- Question 20
Which metal can react with water at r.t.p.? A calcium B copper C lead D zinc
- Question 21
Which statement about amphoteric oxides is not correct? A They dissolve in water. B They are formed only by metals. C They react with aqueous sodium hydroxide to give salts. D They react with aqueous acids to give salts.
- Question 22
Which statement explains why the chemical properties of sodium and potassium are similar? A They are in the same group of the Periodic Table. B They are in the same period of the Periodic Table. C They are soft and …
- Question 23
The diagram shows an outline of part of the Periodic Table. …
- Question 24
The diagram shows apparatus that can be used to extract aluminium. …
- Question 25
Sulfur is burnt in air. Which statement about this reaction is correct? A The gas formed turns aqueous potassium dichromate(VI) from green to orange. B The product is used as a food preservative. C The reaction is endothermic. D The …
- Question 26
A gas G 1 has no smell, 2 is not poisonous, 3 reacts with hydrogen at high temperature and pressure. What is gas G? A carbon monoxide B helium C nitrogen D chlorine
- Question 27
Which method of water purification can be used to obtain drinkable water from seawater? A chlorination B desalination C filtration D sedimentation
- Question 28
Which atmospheric pollutant is produced by bacterial decay of vegetable matter? A carbon monoxide B methane C ozone D sulfur dioxide
- Question 29
Substance P reacts with dilute hydrochloric acid to produce a gas. This gas reduces substance Q. dilute hydrochloric acid P heat Q What are substances P and …
- Question 30
Which two statements about alloys are correct? 1 Alloys are formed by mixing two metals. 2 Alloys do not conduct electricity. 3 Atoms in an alloy must all be the same size. 4 In an alloy there is metallic bonding. …
- Question 31
A powdered mixture of metals contains aluminium, calcium, silver and iron. Excess hydrochloric acid is added until no more mixture dissolves. What is the undissolved residue? A aluminium B calcium C iron D silver
- Question 32
Iron rusts when exposed to oxygen in the presence of water. Which method will not slow down the rate of rusting of an iron roof? A attaching strips of copper to it B coating it with plastic C galvanising it …
- Question 33
A compound has the following structure. …
- Question 34
In the Periodic Table, how many periods are needed to accommodate the elements of atomic numbers …
- Question 35
A compound X has the molecular formula C4H8O2. It reacts with calcium carbonate to give carbon dioxide. What is X? A HCO2C3H7 B CH3CO2C2H5 C C2H5CO2CH3 D C3H7CO2H
- Question 36
Methane is the first member of the alkane series of hydrocarbons. The second member is ethane. Which statements about ethane are correct? 1 Ethane has the formula C2H4. 2 Ethane has a higher boiling point than that of methane. 3 …
- Question 37
Which alkane, when any one hydrogen atom is substituted by a chlorine atom, will not produce isomers? …
- Question 38
When ethanol reacts with ethanoic acid, the ester ethyl ethanoate is formed. C2H5OH + CH3CO2H → CH3CO2C2H5 + H2O What is the formula of the ester formed when methanol reacts with butanoic acid, C3H7CO2H? A C2H5CO2C2H5 B C3H7CO2C2H5 C CH3CO2C3H7 …
- Question 39
The table gives some statements about some macromolecules. 1 fats contain the linkage …
- Question 40
Which of these compounds could react together to form a polymer? 1 H2N(CH2)6NH2 2 CH3(CH2)4COOH 3 HOOC(CH2)4COOH 4 H2N(CH2)6CH3 A 1 and …
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