Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 Oct/Nov 2015 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, Oct/Nov 2015: 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
- 31
File names: 0620_w15_qp_12 · 0620_w15_ms_12
Grade thresholds for 0620/12 Oct/Nov 2015
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 |
|---|---|---|---|---|---|---|
| 31 | 27 | 23 | 21 | 18 | 14 | 10 |
Topics in this paper
Which syllabus chapters 0620/12 Oct/Nov 2015 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 Oct/Nov 2015
- Question 1
Which change of state takes place during evaporation? A gas to liquid B liquid to gas C liquid to solid D solid to gas
- Question 2
The diagram shows apparatus being used to demonstrate how the rate of a chemical reaction changes with temperature. reaction mixture measuring cylinder tank Which statement must be correct? A The reaction is endothermic. B The reaction is exothermic. C The …
- Question 3
The table shows the nucleon number and the number of neutrons in one atom of isotopes …
- Question 4
Compound X melts at 801 °C and is a good electrical conductor when dissolved in water. Compound Y boils at 77 °C, is insoluble in water and is a non-conductor of electricity. Which type of bonding is present in X …
- Question 5
- Question 6
The electronic structures of atoms X and Y are shown. …
- Question 7
The relative atomic mass of chlorine is 35.5. When calculating relative atomic mass, which particle is the mass of a chlorine atom compared to? A a neutron B a proton C an atom of carbon-12 D an atom of hydrogen-1
- Question 8
The diagram shows the electrolysis of concentrated hydrochloric acid and concentrated aqueous sodium chloride using carbon electrodes. …
- Question 9
The diagram shows a section of an overhead power cable. aluminium steel ceramic Which statement explains why a particular substance is used? A Aluminium has a low density and is a good conductor of electricity. B Ceramic is a good …
- Question 10
Hydrogen can be used as a fuel. Which properties of hydrogen would be advantages and which would be disadvantages? 1 Hydrogen is expensive to produce. 2 Hydrogen reacts exothermically with oxygen. 3 When hydrogen burns, a greenhouse gas is not …
- Question 11
Which row correctly describes whether the reaction is exothermic or endothermic? reaction exothermic endothermic A calcium carbonate → calcium oxide + carbon dioxide …
- Question 12
The diagram shows four experiments in which equal volumes of aqueous acid (all in an excess) are added to equal masses of metal. Both acids have the same concentration. In which experiment has the metal completely reacted in the shortest …
- Question 13
The element vanadium, V, forms several oxides. In which change is oxidation taking place? A VO2 …
- Question 14
Which reaction is not a reversible reaction? A combustion of alkanes B hydration of anhydrous copper(II) sulfate C melting lead(II) bromide D thermal decomposition of hydrated cobalt(II) chloride
- Question 15
The reaction between magnesium and carbon dioxide is represented by the following equation. 2Mg + CO2 → 2MgO + C Which statement describes what happens in this reaction? A Carbon is oxidised. B Magnesium is reduced. C Neither oxidation nor …
- Question 16
Which element forms an acidic oxide? …
- Question 17
Which property is not characteristic of a base? A It reacts with a carbonate to form carbon dioxide. B It reacts with an acid to form a salt. C It reacts with an ammonium salt to form ammonia. D It …
- Question 18
A sting from insect X has a pH of 6 and a sting from insect Y has a pH of 8. The table shows the pH of four substances. substance pH hydrochloric acid 1 sodium hydrogen carbonate 8 sodium hydroxide …
- Question 19
A salt is produced in each of the following reactions. P magnesium + dilute hydrochloric acid Q zinc oxide + dilute sulfuric acid R sodium hydroxide + dilute hydrochloric acid S copper carbonate + dilute sulfuric acid Which statements about …
- Question 20
The table shows the symbols of three metals with names that begin with the letter C. Which row correctly shows the melting point of the metals? Co Cr Cs A high high high B high high low C low low …
- Question 21
The table gives information about four elements. Which element is a transition metal? electrical conductivity density in g / cm3 melting point in °C A good …
- Question 22
- Question 23
Which two elements make up mild steel? A aluminium and magnesium B copper and zinc C iron and carbon D tin and lead
- Question 24
The diagrams show what happens when three different metals are added to water. …
- Question 25
Which substances do not react together? A calcium + water B copper + dilute hydrochloric acid C sodium + water D zinc + dilute hydrochloric acid
- Question 26
Iron is extracted from hematite in a blast furnace. Which reaction increases the temperature in the blast furnace to over …
- Question 27
Which statements about water are correct? 1 Household water may contain salts in solution. 2 Water for household use is filtered to remove soluble impurities. 3 Water is treated with chlorine to kill bacteria. 4 Water is used in industry …
- Question 28
Which gas is a pollutant of the air? A argon B carbon dioxide C nitrogen D sulfur dioxide
- Question 29
Carbon monoxide is an air pollutant produced when petrol is burned in a car engine. Why is carbon monoxide considered to be an air pollutant? A It causes climate change. B It causes the corrosion of buildings. C It is …
- Question 30
Metals are welded by using the heat produced by burning a gas in oxygen. Which gas could not be used for this purpose? A ethene B hydrogen C helium D methane
- Question 31
Which elements are present in NPK fertilisers? A nitrogen, phosphorus, potassium B nitrogen, potassium, calcium C sodium, phosphorus, potassium D sodium, potassium, calcium
- Question 32
The apparatus shown is set up and left for a week. damp iron wool air water Which diagram shows the level of the water at the end of the week? …
- Question 33
A farmer moves his cows into a concrete shelter for protection. There is little access for fresh air once the door is closed. Which gases would increase in amount in the shelter? A carbon dioxide and carbon monoxide B carbon …
- Question 34
A student is asked to draw a diagram showing the uses of limestone. limestone making cement making lime added, with hematite, to a blast furnace …
- Question 35
Which formula is that of an alkene? …
- Question 36
Which row describes the formation of a polymer? monomer polymer A ethane poly(ethane) B ethane poly(ethene) C ethene poly(ethane) D ethene poly(ethene)
- Question 37
Hydrocarbons obtained by fractional distillation of petroleum can be cracked to make useful products. Which substance could not be obtained by cracking propane, Mr …
- Question 38
Ethanol can be formed by 1 fermentation 2 reaction between steam and ethene Which of these processes uses a catalyst? …
- Question 39
The flow chart shows the preparation of ethanol and some important chemistry of ethanol. ethanol carbon dioxide + substance Z substance X process Y fermentation What are X, Y and …
- Question 40
What are the properties of a dilute solution of ethanoic acid? smell appearance A odourless colourless B odourless red C pungent smell colourless D pungent smell red To avoid the issue of disclosure of answer-related information to candidates, all copyright …
Other Chemistry papers from Oct/Nov 2015
- 0620/11 Multiple choice (Core)
- 0620/13 Multiple choice (Core)
- 0620/21 Theory (Core)
- 0620/22 Theory (Core)
- 0620/23 Theory (Core)
- 0620/31 Theory (Extended)
- 0620/32 Theory (Extended)
- 0620/33 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical