Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 Feb/March 2016 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 2, Feb/March 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: 0620_m16_qp_22 · 0620_m16_ms_22
Grade thresholds for 0620/22 Feb/March 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 | F | G |
|---|---|---|---|---|---|---|
| 30 | 27 | 24 | 20 | 17 | 15 | 13 |
Topics in this paper
Which syllabus chapters 0620/22 Feb/March 2016 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 Feb/March 2016
- Question 1
Two gas jars are set up as shown. before after jar 2 jar 1 jar 2 jar 1 lid air brown gas The lid is removed and the gas jars are left to stand. After some time the contents of …
- Question 2
Which piece of apparatus is used to measure variable quantities of liquid in a titration? …
- Question 3
A sample of a green food colouring was separated into its component colours using paper chromatography. The results obtained are shown. baseline blue spot yellow spot solvent front What is the Rf value of the blue spot? …
- Question 4
In which row are the substances correctly classified? element compound mixture A brass sulfur water B sulfur brass water C sulfur water brass D water sulfur brass
- Question 5
Which molecule contains only single covalent bonds? A Cl 2 B CO2 …
- Question 6
Which structure represents the sodium chloride lattice? Na– Cl + Na– Cl + Na– Cl + Na– Cl + Na– Cl + Na– Cl + Na– Cl + Na– Cl …
- Question 7
X and Y are isotopes of the same element. Which statement is correct? A X and Y have atoms with different numbers of electron shells. B X and Y have atoms with the same nucleon number. C X and Y …
- Question 8
Which quantities of chemicals will react exactly with no reactants left over? …
- Question 9
Magnesium nitride is formed when magnesium burns in air. Magnesium nitride is an ionic compound. What is the formula of magnesium nitride? A MgN2 B Mg2N2 C Mg2N3 D Mg3N2
- Question 10
The electrolysis of concentrated hydrochloric acid is shown. chlorine hydrogen concentrated hydrochloric acid – + platinum electrodes Which statement describes what happens to the electrons during the electrolysis? A They are added to chloride ions. B They are added to …
- Question 11
Which reaction does not occur in the extraction of aluminium? A Al …
- Question 12
Which substance could not be used as a fuel to heat water in a boiler? A ethanol B hydrogen C methane D oxygen
- Question 13
Which row describes an endothermic reaction? energy needed to break bonds / kJ energy released by forming bonds / kJ temperature …
- Question 14
A reversible reaction is shown. 2NO2(g) …
- Question 15
Which statement about catalysts in chemical reactions is not correct? A Catalysts are not used up in the reaction. B Catalysts increase the energy of the reacting particles. C Catalysts increase the rate of the reaction. D Catalysts lower the …
- Question 16
Zinc is extracted from zinc blende by roasting it in air to form zinc oxide. The zinc oxide is then heated with carbon to form zinc. The equations for the reactions are shown. 1 2ZnS …
- Question 17
The diagram shows an energy level diagram for a reaction. Ea energy The diagram shows that the reaction is 1 . Increasing the temperature increases the rate of reaction. A reason for this is that the 2 . Which words …
- Question 18
Concentrated hydrochloric acid is a strong acid. What is meant by the terms ‘strong’ and ‘acid’? strong acid A contains a low proportion of water accepts protons B contains a low proportion of water donates protons C fully ionised accepts …
- Question 19
Which oxide is amphoteric? A aluminium oxide B calcium oxide C carbon monoxide D sodium oxide
- Question 20
A salt is made by adding an excess of an insoluble metal oxide to an acid. How is the excess metal oxide removed from the mixture? A chromatography B crystallisation C distillation D filtration
- Question 21
A substance is heated with aluminium foil in aqueous sodium hydroxide. A gas is produced which turns damp, red litmus paper blue. Which anion is present in the substance? A carbonate B iodide C nitrate D sulfate
- Question 22
An element does not conduct electricity and exists as diatomic molecules. Where in the Periodic Table is the element found? …
- Question 23
In the Periodic Table, how does the metallic character of the elements vary from left to right across a period? A It decreases. B It increases. C It increases then decreases. D It stays the same.
- Question 24
The elements in a group of the Periodic Table show the following trends. 1 The element with the lowest proton number has the lowest reactivity. 2 All the elements in the group form basic oxides. 3 The density of the …
- Question 25
Brass is an alloy of two metals. Which row gives a correct use for the two metals from which brass is made? metal 1 metal 2 A used for electrical wiring used for galvanising steel B used for galvanising steel …
- Question 26
Iron is extracted from hematite in the blast furnace. The hematite contains silicon(IV) oxide (sand) as an impurity. What reacts with this impurity to remove it? A calcium oxide B carbon C carbon dioxide D slag
- Question 27
The reaction below is called the ‘thermite reaction’. 2Al + Fe2O3 → 2Fe + Al 2O3 Which pair of substances reacts in a similar way? A Fe and MgO B Fe and ZnO C Mg and CuO D Zn and …
- Question 28
One method of preventing the rusting of iron is to keep oxygen away from the surface of the metal. Which way of rust prevention does not use this method? A coating the iron with grease B connecting the iron to …
- Question 29
The diagram shows how water is treated to make it suitable for drinking. reservoir stage 1 stage 2 chlorination stage 3 drinking water stage 4 What happens in stage 2? A condensation B distillation C evaporation D filtration
- Question 30
Nitrogen monoxide is produced in a car engine when petrol is burnt. The gases from the car engine are passed through a catalytic converter. In the catalytic converter the nitrogen monoxide reacts with carbon monoxide to form nitrogen and carbon …
- Question 31
Which pollutant gas can be produced as a result of incomplete combustion of octane, C8H18? A carbon B carbon dioxide C carbon monoxide D methane
- Question 32
Fertilisers are used to provide three elements needed to increase the yield of crops. Which two compounds would provide all three of these elements? A ammonium nitrate and calcium phosphate B ammonium nitrate and potassium sulfate C potassium nitrate and …
- Question 33
What is a property of concentrated sulfuric acid but not of dilute sulfuric acid? A It is a dehydrating agent. B It neutralises alkalis. C It produces a white precipitate with barium nitrate. D It reacts with metals to give …
- Question 34
Why does a farmer put lime (calcium oxide) on the soil? A to act as a fertiliser B to kill pests C to make the soil less acidic D to make the soil less alkaline
- Question 35
What is the name of fraction X? kerosene X gasoline refinery gas fractions diesel oil lubricating fraction petroleum bitumen A alcohol B fuel oil C naphtha D paraffin
- Question 36
Which compounds are alkanes? compound …
- Question 37
The statements below are about the alcohol homologous series. The alcohols have the same 1 formula. The alcohols have 2 chemical properties because they have the same 3 . The melting points of the alcohols 4 as the number of …
- Question 38
Which structure represents a compound that dissolves in water to form an acidic solution? …
- Question 39
The partial structure of an addition polymer is shown. …
- Question 40
Which statement about polymers is correct? A Addition polymers are all biodegradable. B Condensation polymers can all be hydrolysed to give amino acids. C Condensation polymers only exist in nature. D Forming addition polymers produces only one product. Group The …
Other Chemistry papers from Feb/March 2016
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- 0620/62 Alternative to Practical