Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 May/June 2014 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, May/June 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
- 32
File names: 0620_s14_qp_12 · 0620_s14_ms_12
Grade thresholds for 0620/12 May/June 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 |
|---|---|---|---|---|
| 32 | 29 | 26 | 22 | 18 |
Topics in this paper
Which syllabus chapters 0620/12 May/June 2014 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 May/June 2014
- Question 1
Two gas jars each contain a different gas. The gas jars are connected and the cover slips are removed. The diagram shows what happens to the particles of the gases. cover slips Which process has occurred? A chemical reaction B …
- Question 2
A liquid is heated until it boils. thermometer test-tube 25 cm3 liquid ethanol spirit burner Which result shows that the liquid in the test-tube is pure water? A Condensation forms at the top of the test-tube. B Steam is produced. …
- Question 3
Which two methods can be used to separate a salt from its solution in water? 1 crystallisation 2 decanting 3 distillation 4 filtration A 1 and …
- Question 4
Which statements about a phosphorus atom, …
- Question 5
The diagrams show four particles. 1 key = an electron = a neutron = a proton …
- Question 6
The ‘lead’ in a pencil is made of a mixture of graphite and clay. ‘lead’ When the percentage of graphite is increased, the pencil slides across the paper more easily. Which statement explains this observation? A Graphite has a high …
- Question 7
The electronic structures of two atoms, X and Y, are shown. …
- Question 8
The structure of an organic compound, X, is shown. …
- Question 9
What is the relative molecular mass, M r, of nitrogen dioxide? …
- Question 10
Electrical cables are made from either 1 , because it is a very good conductor of electricity, or from 2 , because it has a low density. Overhead cables have a 3 core in order to give the cable strength. …
- Question 11
What will be produced at the anode and at the cathode, if molten potassium chloride is electrolysed? anode (+) cathode (-) A chlorine hydrogen B chlorine potassium C hydrogen chlorine D potassium chlorine
- Question 12
Solutions of two chemicals are mixed. A reaction occurs and the temperature change is measured. Which statement is correct? A If the reaction is endothermic, the temperature decreases and energy is taken in. B If the reaction is endothermic, the …
- Question 13
Power stations produce electrical energy from different fuels. Which fuel causes least pollution to the atmosphere? A coal B fuel oil C natural gas D radioactive isotopes
- Question 14
A student was investigating the reaction between marble chips and dilute hydrochloric acid. bung marble chips 25 cm3 dilute hydrochloric acid gas syringe Which changes would reduce the rate of reaction? temperature of acid concentration of acid surface area of …
- Question 15
Which equation shows an oxidation reaction? …
- Question 16
In separate experiments, a catalyst is added to a reaction mixture and the temperature of the mixture is decreased. What are the effects of these changes on the rate of the reaction? catalyst added temperature decreased A faster faster B …
- Question 17
Different plants grow best under different pH conditions. Which plant grows best in alkaline soil? plant grows best in soil at pH A cabbage 6-8 B potato 4-7 C strawberry 5-7 D wheat 6-7
- Question 18
The equation shows a reaction that is reversed by changing the conditions. forward reaction CuSO4.5H2O CuSO4 + 5H2O How can the forward reaction be reversed? by adding water by heating …
- Question 19
Element X forms an oxide, XO, that neutralises sulfuric acid. Which row describes X and XO? element X nature of oxide, XO A metal acidic B metal basic C non-metal acidic D non-metal basic
- Question 20
Copper carbonate reacts with dilute sulfuric acid to make copper sulfate. CuCO3(s) + H2SO4(aq) → CuSO4(aq) + CO2(g) + H2O(l) Which row gives the correct order of steps for making copper sulfate crystals? step 1 step 2 step 3 step …
- Question 21
Element X is a non-metal. In which position of the Periodic Table could element X be found? A at the bottom of Group I B at the top of Group 0 C at the top of Group I D in …
- Question 22
Aqueous sodium hydroxide is added to solid X and the mixture is heated. A green precipitate is formed and an alkaline gas is given off. Which ions are present in X? A NH4 + and Fe2+ B NH4 + and …
- Question 23
A student carried out an experiment to find the order of reactivity of five metals. They were tested with cold water, hot water and steam and the results recorded in a table. metal cold water hot water steam V no …
- Question 24
Why is argon gas used to fill electric lamps? A It conducts electricity. B It glows when heated. C It is less dense than air. D It is not reactive.
- Question 25
An element melts at 1455 °C, has a density of …
- Question 26
The diagrams show two items that may be found in the home. Each item contains zinc. zinc plated bucket brass door-knocker In which is zinc used as an alloy? bucket door-knocker …
- Question 27
Which object is likely to be made from stainless steel? bicycle chain A car body B can of beans C teaspoon D
- Question 28
Four reactions that take place in the blast furnace to produce iron are shown. Which reaction is used to keep the furnace hot? …
- Question 29
The diagram shows a blast furnace. In which part is iron ore changed to iron? …
- Question 30
The diagram shows some uses of water in the home. …
- Question 31
A piece of uncoated iron and three pieces of iron with various coatings were left exposed to the air. Which piece of iron would rust? A the painted piece B the tin-coated piece C the uncoated piece D the zinc-coated …
- Question 32
Which compound would not be an effective fertiliser? A ammonium nitrate, NH4NO3 B calcium oxide, CaO C calcium phosphate, Ca3(PO4)2 D potassium nitrate, KNO3
- Question 33
Sulfur dioxide, SO2, nitrogen dioxide, NO2, and carbon monoxide, CO, are air pollutants. Which row correctly shows their major source? motor car engines power stations A CO NO2, SO2 B NO2, CO SO2 C SO2, NO2 CO D SO2 NO2, …
- Question 34
Which process does not produce carbon dioxide? A combustion of methane B fermentation of sugar C polymerisation of ethene D respiration
- Question 35
Which pollutant gas is produced by the decomposition of vegetation? A carbon monoxide B methane C nitrogen oxide D sulfur dioxide
- Question 36
Which diagram shows the structure of pentanoic acid? …
- Question 37
The table shows the composition of four different types of petroleum (crude oil). fraction Arabian Heavy / % Arabian Light / % Iranian Heavy / % North Sea / % gasoline …
- Question 38
The diagram shows the cracking of substance X. Y water cotton wool soaked in X catalyst heat Which type of organic compound is found in Y, which is not present in X? A acid B alcohol C alkane D alkene
- Question 39
In which reaction could one of the products belong to the same homologous series as the organic reactant? A addition of steam to ethene B combustion of an alkane C cracking of an alkane D polymerisation of ethene
- Question 40
Ethanol is produced from either ethene or sugar. Which type of chemical reaction is used in each case? ethene → ethanol sugar → ethanol A addition fermentation B addition fractional distillation C distillation fermentation D distillation fractional distillation Group 140 …
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