Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/13 Oct/Nov 2018 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 3, Oct/Nov 2018: 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
- 22
File names: 0620_w18_qp_13 · 0620_w18_ms_13
Grade thresholds for 0620/13 Oct/Nov 2018
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 |
|---|---|---|---|---|
| 22 | 19 | 17 | 14 | 11 |
Topics in this paper
Which syllabus chapters 0620/13 Oct/Nov 2018 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/13 Oct/Nov 2018
- Question 1
The statements describe two changes of state. 1 The molecules of substance X are arranged randomly. During the change of state, they lose energy and become more ordered. The molecules can still move freely. 2 The molecules of substance Y …
- Question 2
Which statement about gases is correct? A Gases are difficult to compress when pressure is applied. B The particles in gases are close together. C The particles in gases have a random arrangement. D The particles in gases move slowly …
- Question 3
Salt is added to pure water to form an aqueous solution. Which statement is correct? A The melting point and the boiling point of the water both decrease. B The melting point and the boiling point of the water both …
- Question 4
The diagrams show four pieces of laboratory equipment. thermometer stop-clock pipette balance Which equipment is essential to find out if dissolving a salt in water is an exothermic process? balance pipette stop-clock thermometer …
- Question 5
Which statement describes isotopes? A Isotopes of the same element have different electron arrangements. B Isotopes of the same element have different nuclear charges. C Isotopes of the same element have nuclei with masses that are the same. D Isotopes …
- Question 6
Substance X conducts electricity. What is …
- Question 7
Which statement describes the elements in Group I? A They all form ions by gaining electrons. B They all form ions with the same charge. C They have different numbers of electrons in their outer shells. D They all have …
- Question 8
Calcium phosphate has the formula Ca3(PO4)2. What is the relative formula mass of calcium phosphate? …
- Question 9
Limestone fizzes and dissolves in dilute hydrochloric acid. What is the word equation for the reaction which occurs? A calcium carbonate + hydrochloric acid → calcium chloride + water + carbon dioxide B calcium carbonate + hydrochloric acid → calcium …
- Question 10
When solution Q is electrolysed using carbon electrodes, colourless gases are produced at both electrodes. What is Q? A concentrated hydrochloric acid B concentrated sodium chloride solution C dilute sulfuric acid D pure water
- Question 11
Which electrodes and electrolyte can be used to electroplate a copper medal with gold? positive electrode negative electrode electrolyte A copper gold an aqueous copper compound B copper gold an aqueous gold compound C gold copper an aqueous copper compound …
- Question 12
Which substance does not use oxygen to produce heat energy? A coal B hydrogen C natural gas D uranium
- Question 13
Which row describes an endothermic reaction? energy level diagram energy transfer A energy progress of reaction energy is transferred from the surroundings to the reaction B energy progress of reaction energy is transferred from the surroundings to the reaction C …
- Question 14
When solid hydrated cobalt(II) chloride crystals are heated they turn blue and steam is produced. Adding water to the blue crystals turns them pink. Which type of reaction has occurred? A neutralisation B oxidation C reduction D reversible
- Question 15
Iron(III) oxide reacts with carbon monoxide. The equation is shown. Fe2O3 + 3CO → 2Fe + 3CO2 Which substance is reduced? A CO B CO2 C Fe D Fe2O3
- Question 16
In Experiment 1, 1 g of calcium carbonate is reacted with an excess of dilute hydrochloric acid. The volume of gas produced every minute is recorded. In Experiment 2, Experiment 1 is repeated using smaller pieces of calcium carbonate. All …
- Question 17
The results of some experiments with sulfur dioxide are shown. experiment description result 1 mix with dilute hydrochloric acid does not react 2 mix with concentrated sodium hydroxide a salt forms 3 add Universal Indicator Universal Indicator turns purple 4 …
- Question 18
A student prepares solid hydrated copper(II) sulfate from dilute sulfuric acid and the insoluble base copper(II) oxide. Which process is not used in the procedure? A crystallisation B distillation C evaporation D filtration
- Question 19
A white precipitate is produced when small amounts of two colourless solutions are mixed together. Which pairs of solutions produce a white precipitate? 1 sodium hydroxide and zinc nitrate 2 sodium hydroxide and aluminium chloride 3 barium chloride and sulfuric …
- Question 20
Solution Q is warmed with ammonium chloride. In a separate experiment, solution Q is added to methyl orange. Which observations show that solution Q is basic? warmed with ammonium chloride added to methyl orange A gas is produced turns red …
- Question 21
Which statement about elements in the Periodic Table is correct? A Elements are arranged in order of increasing nucleon number. B Elements change from non-metallic to metallic across a period. C Elements in the same period have similar properties. D …
- Question 22
Elements in Group I of the Periodic Table react with water. Which row describes the products made in the reaction and the trend in reactivity of the elements? products trend in reactivity A metal hydroxide and hydrogen less reactive down …
- Question 23
The equation shows the reaction between a halogen and aqueous bromide ions. X2 + 2Br– …
- Question 24
An inert gas R is used to fill weather balloons. Which descriptions of R are correct? number of outer shell electrons in atoms of R structure of gas …
- Question 25
Calcium reacts with cold water to produce hydrogen. Lead reacts slowly when heated in air to form an oxide but has almost no reaction with steam. Silver does not react with either air or water. Zinc reacts when heated with …
- Question 26
Iron and potassium are both metals. Which row shows the reactivity of the metal and how it is extracted from its ore? metal reactivity extracted by A iron high electrolysis B iron medium heating with carbon C potassium medium electrolysis …
- Question 27
Which row describes the use of a metal and the property upon which the use depends? metal use property A aluminium aircraft bodies aluminium is a heat conductor B aluminium cooking utensils aluminium has a low density C copper cooking …
- Question 28
Argon is a noble gas used to fill light bulbs. What is the approximate percentage of argon in air? …
- Question 29
The diagrams show experiments involving the rusting of iron. water boiled to remove the air water anhydrous calcium chloride to dry the air oil iron nails tube Q tube R tube P A student predicted the following results. 1 In …
- Question 30
Which equation represents the incomplete combustion of propane, …
- Question 31
The table describes three types of water. water type source of water appearance before treatment treatment appearance after treatment P river muddy none muddy Q river muddy filtration and chlorination clear R well clear chlorination only clear Which statement is …
- Question 32
Which compound would not be used as an important part of a garden fertiliser? A Ca3(PO4)2 B KNO3 C Mg(OH)2 D (NH4)2SO4
- Question 33
Carbon dioxide and methane both contribute to climate change. Which process produces both gases? A complete combustion of natural gas B farming cattle C heating calcium carbonate D respiration
- Question 34
Which equation represents the formation of lime? A CaCO3 → CaO + CO2 B CaO …
- Question 35
Petroleum is a mixture of different hydrocarbons. Which process is used to separate the petroleum into groups of similar hydrocarbons? A combustion B cracking C fractional distillation D reduction
- Question 36
Which two compounds are molecules which both contain a double bond? A ethane and ethanoic acid B ethane and ethanol C ethene and ethanoic acid D ethene and ethanol
- Question 37
Which statement about any homologous series is correct? A The first member contains one carbon atom only. B The members all contain carbon and hydrogen only. C The members all contain the same functional group. D The members all contain …
- Question 38
Ethanol can be formed by: 1 fermentation 2 reaction between steam and ethene. Which of these processes use a catalyst? …
- Question 39
Which statement about ethanoic acid is not correct? A It is insoluble in water. B It reacts with sodium hydroxide to form a salt. C It reacts with some metals to form hydrogen gas. D It is a carboxylic acid.
- Question 40
Some information about poly(ethene) is given. ● Poly(ethene) is used to make plastic bags. ● Poly(ethene) plastic bags in landfill sites do not readily decompose. ● Poly(ethene) molecules contain carbon and hydrogen atoms. Which statement about poly(ethene) is correct? A …
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