Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/22 May/June 2019 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 2, May/June 2019: 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
- 29
File names: 0620_s19_qp_22 · 0620_s19_ms_22
Grade thresholds for 0620/22 May/June 2019
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 |
|---|---|---|---|---|---|---|
| 29 | 24 | 20 | 18 | 16 | 14 | 12 |
Topics in this paper
Which syllabus chapters 0620/22 May/June 2019 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/22 May/June 2019
- Question 1
The apparatus shown is set up. After 20 minutes a white ring of ammonium chloride is seen at position Y. cotton wool soaked in concentrated ammonia solution cotton wool soaked in concentrated hydrochloric acid Y white ring of ammonium chloride …
- Question 2
A student measures 25.00 cm3 of dilute hydrochloric acid accurately. Which apparatus is most suitable? A beaker B measuring cylinder C burette D dropping pipette
- Question 3
The chromatogram of solutions of two metal ions, P and Q, is shown. P Q baseline solvent front P is coloured. A locating agent is used to find the position of Q. The Rf value of each solution is calculated. …
- Question 4
- Question 5
Which row describes the formation of single covalent bonds in methane? A atoms share a pair of electrons both atoms gain a noble gas electronic structure B atoms share a pair of electrons both atoms have the same number of …
- Question 6
Which statement describes the structure of an ionic compound? A It is a giant lattice of oppositely charged ions. B It is a giant lattice of positive ions in a ‘sea’ of electrons. C It is a giant molecule of …
- Question 7
Calcium metal reacts with water to form a solution of calcium hydroxide and hydrogen gas. Which equation is correct? A Ca(s) + H2O(aq) → CaOH(aq) …
- Question 8
25.0 cm3 of 0.100 mol / dm3 aqueous sodium hydroxide is neutralised by 24.6 cm3 of dilute sulfuric acid. What is the concentration of the dilute sulfuric acid? A 0.0508 mol / dm3 B 0.0984 mol / dm3 C 0.102 …
- Question 9
The diagram shows the electrolysis of an aqueous solution of X using inert electrodes. aqueous solution of …
- Question 10
Aluminium is extracted by electrolysis as shown. …
- Question 11
Fuel cells are used as energy sources in cars. Which row gives a fuel used in a fuel cell and the products formed? fuel in a fuel cell products formed A hydrogen carbon dioxide and water B hydrogen water only …
- Question 12
Two elements, X and Y, react together to form a covalent molecule as shown. The reaction is exothermic. …
- Question 13
Which change in reaction conditions increases both the collision rate and the proportion of molecules with sufficient energy to react? A addition of a catalyst B increasing the concentration of a reactant C increasing the surface area of a reactant …
- Question 14
When blue-green crystals of nickel(II) sulfate are heated, water is produced and a yellow solid remains. When water is added to the yellow solid, the blue-green colour returns. Which process describes these changes? A combustion B corrosion C neutralisation D …
- Question 15
The equation for the manufacture of ethanol is shown. …
- Question 16
The ionic equation for the reaction of aqueous potassium bromide with chlorine gas is shown. 2Br – + Cl 2 → Br2 + 2Cl – Which statement is correct? A Bromide ions are oxidised by gaining electrons. B Bromide ions …
- Question 17
Which type of oxide are carbon monoxide and aluminium oxide? carbon monoxide aluminium oxide A acidic amphoteric B acidic basic C neutral amphoteric D neutral basic
- Question 18
- Question 19
Which row shows the difference between a weak acid and a strong acid? weak acid strong acid A fully ionised partially ionised B concentrated dilute C dilute concentrated D partially ionised fully ionised
- Question 20
Part of the Periodic Table is shown. …
- Question 21
The melting points and boiling points of the elements of Group I of the Periodic Table are shown. element melting point / °C boiling point / °C lithium 181 1330 sodium 98 883 potassium 63 759 rubidium 39 688 caesium …
- Question 22
The electronic structures of helium, neon and argon are shown. He Ne Ar Which row describes these gases? reactivity form of the gas electronic structure A reactive monoatomic incomplete outer shell of electrons B unreactive diatomic complete outer shell of …
- Question 23
The diagrams show the structure of two substances used to make electrical conductors. X Y Which statement correctly describes X and …
- Question 24
A student heated the carbonates and nitrates of sodium and copper. The results are shown. compound heated gases released solid formed 1 sodium carbonate carbon monoxide sodium oxide 2 copper(II) carbonate carbon dioxide copper 3 sodium nitrate oxygen only sodium …
- Question 25
Zinc is extracted from its ore, zinc blende, using two chemical reactions. 1 2ZnS …
- Question 26
Four metals, zinc, M, copper and magnesium, are reacted with aqueous solutions of their nitrates. The results are shown. metal magnesium nitrate M nitrate copper nitrate zinc nitrate magnesium …
- Question 27
Which property of aluminium makes it useful in the manufacture of aircraft? A conducts electricity B high boiling point C low density D silver colour
- Question 28
The exhaust gases from cars contain oxides of nitrogen. How are these oxides of nitrogen formed? A Nitrogen and oxygen from the air react together at the high temperatures in the engine. B Nitrogen and oxygen from the petrol react …
- Question 29
Water can be treated by filtration then chlorination. Which uses do not need water of this quality? 1 water for cooling in industry 2 water for washing clothes 3 water for drinking …
- Question 30
Some of the processes involved in the carbon cycle are shown. 1 glucose + oxygen → carbon dioxide + water 2 carbon dioxide + water → glucose + oxygen 3 methane + oxygen → carbon dioxide + water What are …
- Question 31
The diagram shows an experiment to investigate how paint affects the rusting of iron. air P Q water iron painted iron What happens to the water level in tubes P and Q? tube P tube Q A falls rises B …
- Question 32
Ammonia is produced in the Haber process. The equation for the reaction is shown. …
- Question 33
Which row shows the conditions used in the Contact process? temperature / °C pressure / atm catalyst …
- Question 34
The diagram represents a lime kiln used to heat limestone to a very high temperature. air in fuel in fuel in air in X waste gases limestone lime kiln What leaves the kiln at X? A calcium carbonate B calcium …
- Question 35
Which fuel could be gasoline? Is it obtained from petroleum? Is it used as fuel for cars? Is it used as fuel for cars? no yes no yes …
- Question 36
Which statement about homologous series is not correct? A All homologous series are hydrocarbons. B Members of a homologous series have the same functional group. C Members of a homologous series have similar chemical properties. D The alkanes are an …
- Question 37
In bright sunlight, ethane and chlorine combine in substitution reactions. Which compound is not formed in these reactions? A C2H3Cl B C2H5Cl C C2H4Cl 2 D HCl
- Question 38
What are the properties of aqueous ethanoic acid? decolourises bromine water reacts with calcium carbonate to make carbon dioxide turns damp red litmus blue …
- Question 39
The structures of four molecules are shown. C O OH O OH …
- Question 40
But-1-ene has the structure CH3CH2CH=CH2. What is the structure of poly(but-1-ene)? …
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