Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/11 May/June 2021 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 1, May/June 2021: the question paper and its official mark scheme, 40 questions worth 40 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
- Grade A from
- 19
File names: 0620_s21_qp_11 · 0620_s21_ms_11
Grade thresholds for 0620/11 May/June 2021
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 |
|---|---|---|---|---|
| 19 | 17 | 15 | 13 | 11 |
Topics in this paper
Which syllabus chapters 0620/11 May/June 2021 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/11 May/June 2021
- Question 1
Which row describes the arrangement and movement of particles in a liquid? arrangement of particles movement of particles A touching and regular vibrating B touching and random moving around each other C touching and regular moving around each other D …
- Question 2
A mixture is separated using the apparatus shown. mixture funnel filter paper What is the mixture? A aqueous copper(II) sulfate and aqueous sodium chloride B aqueous copper(II) sulfate and copper C copper and sulfur D ethanol and ethanoic acid
- Question 3
Which statement about paper chromatography is correct? A A solvent is needed to dissolve the paper. B Paper chromatography separates mixtures of solvents. C The solvent should cover the baseline. D The baseline should be drawn in pencil.
- Question 4
Element X has 7 protons. Element Y has 8 more protons than X. Which statement about element Y is correct? A Y has more electron shells than …
- Question 5
A covalent molecule Q contains only six shared electrons. What is Q? A ammonia, NH3 B chlorine, Cl 2 C methane, CH4 D water, H2O
- Question 6
Which row describes how an ionic bond forms between a sodium atom and a chlorine atom? sodium atom chlorine atom A two electrons are lost two electrons are gained B one electron is gained one electron is lost C two …
- Question 7
Which diagram shows the structure of an alloy? …
- Question 8
Methane burns in oxygen to produce carbon dioxide and water. What is the balanced equation for this reaction? A CH4 …
- Question 9
What is the relative formula mass of magnesium nitrate, Mg(NO3)2? …
- Question 10
In separate experiments, electricity was passed through concentrated aqueous sodium chloride and molten lead(II) bromide. What would happen in both experiments? A A halogen would be formed at the anode. B A metal would be formed at the cathode. C …
- Question 11
Steel core aluminium cables are used for overhead electricity cables. Which statement explains why these cables are used? A Aluminium conducts electricity only when it surrounds a steel core. B Aluminium conducts electricity and the steel core makes the cable …
- Question 12
The complete combustion of propane is exothermic. The equation for this reaction is shown. …
- Question 13
Which changes occur when hydrogen is burned in oxygen? energy change product A endothermic H2O only B endothermic H2O and CO2 C exothermic H2O only D exothermic H2O and CO2
- Question 14
When sulfur is heated it undergoes a 1 change as it melts. Further heating causes the sulfur to undergo a 2 change and form sulfur dioxide. Which words complete gaps 1 and …
- Question 15
Zinc reacts with an acid to form a gas. The volume of gas produced is measured at intervals. The results are shown as curve Z. The reaction is repeated in the presence of a catalyst. Which curve shows the results …
- Question 16
Which statement is correct? A When anhydrous copper(II) sulfate is heated its colour changes to a deeper blue. B When hydrated copper(II) sulfate is heated its colour changes to a deeper blue. C When water is added to blue cobalt(II) …
- Question 17
Three separate experiments are carried out on an aqueous solution of S. The results are shown. 1 Magnesium does not react with the solution. 2 A gas is given off when ammonium sulfate is heated with the solution. 3 Methyl …
- Question 18
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 19
Copper(II) sulfate is prepared by adding excess copper(II) oxide to warm dilute sulfuric acid. Which purification methods are used to obtain pure solid copper(II) sulfate from the reaction mixture? 1 crystallisation 2 filtration 3 chromatography 4 distillation A 1 and …
- Question 20
Some reactions of element M are shown. element M oxide of M solution add blue litmus add to purple acidified potassium manganate(VII) goes red burn add water goes colourless What is element M? A carbon B iron C magnesium D …
- Question 21
Element X is in Group II of the Periodic Table. Which statements about X are correct? 1 X is a metal. 2 X has two electrons in its outer shell. 3 X is a liquid at room temperature. A 1 …
- Question 22
Why is helium used to fill balloons? A Helium is monoatomic. B Helium is in Group VIII of the Periodic Table. C Helium has a full outer electron shell. D Helium is less dense than air.
- Question 23
Which row describes the trend in properties of the elements in Group I as the group is descended? melting point reactivity with water A decreases decreases B decreases increases C increases decreases D increases increases
- Question 24
An element melts at 1455 C, has a density of …
- Question 25
Some properties of metal J are listed. ● J does not react with cold water. ● J reacts with dilute hydrochloric acid. ● No reaction occurs when the oxide of J is heated with carbon. What is J? A copper …
- Question 26
Iron from a blast furnace is treated with oxygen and with calcium oxide to make steel. Which substances in the iron are removed? oxygen removes calcium oxide removes A carbon acidic oxides B carbon basic oxides C iron acidic oxides …
- Question 27
Which row describes a use of the metal and explains why it is used? metal use reason A aluminium food containers good conductor of electricity B aluminium aircraft wings high density C copper cooking utensils good conductor of heat D …
- Question 28
Ammonium chloride is heated with aqueous sodium hydroxide. ammonium chloride and aqueous sodium hydroxide damp universal indicator paper gentle heat A gas is produced which turns damp universal indicator paper blue. Which gas has been produced? A ammonia B hydrogen …
- Question 29
Which two gases make up approximately 99% of clean, dry air? A carbon dioxide and nitrogen B carbon dioxide and oxygen C nitrogen and oxygen D argon and nitrogen
- Question 30
A student writes three statements about potassium nitrate, KNO3. 1 The relative formula mass of KNO3 is 101. 2 Potassium nitrate contains the three essential elements for plant growth. 3 Potassium nitrate could be used as a fertiliser. Which statements …
- Question 31
Which row describes the uses of sulfur and sulfur dioxide? sulfur sulfur dioxide A extraction of aluminium food preservative B extraction of aluminium manufacture of cement C manufacture of sulfuric acid food preservative D manufacture of sulfuric acid manufacture of …
- Question 32
A white solid Z reacts with dilute hydrochloric acid to produce a gas. The same gas is produced when compound Z is heated strongly. What is Z? A calcium B calcium carbonate C calcium hydroxide D calcium oxide
- Question 33
Some information about compound L is listed. 1 L is an organic compound which contains four hydrogen atoms. 2 L is soluble in water. 3 An aqueous solution of L reacts with copper(II) carbonate to produce a gas. What is …
- Question 34
The structure of an organic molecule is shown. …
- Question 35
Which compounds belong to the same homologous series? A ethane and propane B ethanoic acid and ethanol C methane and ethene D propene and ethanoic acid
- Question 36
Which statement about alkanes is correct? A They burn in oxygen. B They contain carbon, hydrogen and oxygen atoms. C They contain double bonds. D They contain ionic bonds.
- Question 37
Which structure represents poly(ethene)? …
- Question 38
P, Q, R and S are four organic compounds. P is an unsaturated hydrocarbon. Q burns but otherwise is unreactive. R contains a C–C single bond and a C=C double bond. S undergoes addition polymerisation. Which compounds are alkenes? A …
- Question 39
Which statement about petroleum fractions is correct? A All petroleum fractions are used as fuels. B Gas oil is used to make bottled gas for heating. C Hydrocarbons in diesel have higher boiling points than hydrocarbons in gasoline. D Molecules …
- Question 40
Which substance is a natural polymer? A ethene B Terylene C nylon D protein Group The Periodic Table of Elements 1 H hydrogen 1 2 He helium 4 I II III IV V VI VII VIII 3 Li lithium 7 …
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