Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 Feb/March 2019 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, Feb/March 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
- 26
File names: 0620_m19_qp_12 · 0620_m19_ms_12
Grade thresholds for 0620/12 Feb/March 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 |
|---|---|---|---|---|
| 26 | 22 | 19 | 16 | 13 |
Topics in this paper
Which syllabus chapters 0620/12 Feb/March 2019 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 Feb/March 2019
- Question 1
Four processes are listed. 1 Brownian motion 2 condensation 3 diffusion 4 evaporation Which processes involve a change of state? A 1 and …
- Question 2
A student measures the time taken for 2.0 g of magnesium to dissolve in 50 cm3 of dilute sulfuric acid. Which apparatus is essential to complete the experiment? 1 stop-clock 2 measuring cylinder 3 thermometer 4 balance …
- Question 3
Which method should be used to separate a mixture of two liquids? A crystallisation B electrolysis C filtration D fractional distillation
- Question 4
Lead(II) iodide is insoluble in water. Lead(II) iodide is made by adding aqueous lead(II) nitrate to aqueous potassium iodide. Which pieces of apparatus are needed to obtain solid lead(II) iodide from 20 cm3 of aqueous lead(II) nitrate? …
- Question 5
Which row describes isotopes of the same element? number of protons number of neutrons A different different B different same C same different D same same
- Question 6
Which row describes the structure of the positive ion in sodium chloride? protons electrons neutrons …
- Question 7
Which pair of statements about diamond and graphite is correct? diamond graphite A Diamond and graphite are both pure carbon. They are both macromolecules. B Diamond and graphite can both be used as electrodes. Graphite is also used as a …
- Question 8
What is the nucleon number of an atom? A the number of neutrons B the number of protons C the total number of protons and neutrons D the total number of protons and electrons
- Question 9
The relative formula mass, Mr, of calcium carbonate, CaCO3, is 100. What is the mass of carbon present in 100 g of calcium carbonate? …
- Question 10
Two electrolysis experiments were carried out as shown. The graphite electrodes are labelled 1– 4. power supply molten sodium chloride …
- Question 11
10 g of ammonium nitrate is added to water at 25 °C and the mixture stirred. The ammonium nitrate dissolves and, after one minute, the temperature of the solution is 10 °C. Which word describes this change? A endothermic B …
- Question 12
Which process involves a chemical change? A dissolving copper(II) sulfate B distilling ethanol C freezing water D neutralising copper(II) oxide
- Question 13
Lumps of limestone react with dilute hydrochloric acid according to the equation shown. CaCO3 + 2HCl → CaCl …
- Question 14
Which reaction is reversible? A Cu + ZnSO4 → CuSO4 + Zn B CuO + H2SO4 → CuSO4 …
- Question 15
The reaction between magnesium and carbon dioxide is shown in the 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 reduction …
- Question 16
Barium hydroxide is an alkali. It reacts with hydrochloric acid. How does the pH of the hydrochloric acid change as an excess of aqueous barium hydroxide is added? A The pH decreases from pH 14 and becomes constant at pH …
- Question 17
Copper(II) sulfate crystals are blue. They are made by adding an excess of copper(II) oxide to sulfuric acid. The mixture is heated and stirred. It is then filtered and the filtrate is allowed to evaporate, leaving blue crystals. Why is …
- Question 18
The results of two tests on an aqueous solution of X are shown. test observation aqueous sodium hydroxide added green precipitate formed acidified aqueous silver nitrate added yellow precipitate formed What is X? A copper(II) chloride B copper(II) iodide C …
- Question 19
Information about the solubility in water of four oxides is shown. Which oxide, when added to water, gives a solution with a pH less than pH 7? name of oxide solubility in water A nitrogen dioxide soluble B copper(II) oxide …
- Question 20
The elements sodium to argon form Period 3 of the Periodic Table. Which row describes the trend across Period 3 from left to right? number of outer shell electrons metallic character group number A decreases decreases decreases B decreases increases …
- Question 21
Astatine is below iodine in Group VII in the Periodic Table. Which row describes the properties of astatine? state at room temperature reactivity A gas displaces chlorine, bromine and iodine B gas displaces iodine but does not displace chlorine or …
- Question 22
Which row describes a transition element? density in g / cm3 colour of chloride A 0.98 green B 0.98 white C 8.90 green D 8.90 white
- Question 23
Which statement explains why elements in Group VIII of the Periodic Table are unreactive? A They are monatomic gases. B They form stable diatomic molecules. C They have a full outer shell of electrons. D They share electrons with each …
- Question 24
The electrical conductivity of magnesium was tested. Magnesium was then added to dilute sulfuric acid and a gas, Q, was produced. Which row is correct? electrical conductivity of magnesium gas Q A good hydrogen B good oxygen C poor hydrogen …
- Question 25
Four reactions that take place in the blast furnace to produce iron are shown. Which reaction is used to keep the furnace hot? …
- Question 26
The list gives the order of some metals and hydrogen in the reactivity series. Metal X is also included. most reactive K Mg Zn H X least reactive Cu Which row correctly shows the properties of metal X? reacts with …
- Question 27
The properties of four elements are shown. Which element is used to make aircraft bodies? density brittle or malleable A high brittle B high malleable C low brittle D low malleable
- Question 28
The diagram shows how water is treated to make it suitable for drinking. reservoir of water stage 1 stage 2 chlorination stage 3 drinking water stage 4 What happens in stage 2? A condensation B sublimation C evaporation D filtration
- Question 29
A farmer treats a field with calcium hydroxide to make it less acidic. When the farmer adds ammonium nitrate fertiliser to the field immediately after the calcium hydroxide, they react. Why does this reaction make the fertiliser less effective? A …
- Question 30
Which row showing an air pollutant and its major source is not correct? pollutant major source of pollutant A carbon monoxide complete combustion of carbon fuels B lead compounds leaded petrol C oxides of nitrogen car engines D sulfur dioxide …
- Question 31
Which substances are needed for iron to rust? A carbon dioxide and oxygen B oxygen only C water and carbon dioxide D water and oxygen
- Question 32
Methane and carbon dioxide are both greenhouse gases. Which row identifies a source of methane and a source of carbon dioxide? source of methane source of carbon dioxide A decomposition of vegetation hydrogen car exhausts B digestion in animals diesel …
- Question 33
Which element has an oxide that is used as a food preservative? A helium B hydrogen C iron D sulfur
- Question 34
Lime is made by heating limestone. Which equation represents this reaction? A CaCO3 → Ca …
- Question 35
Most objects made from synthetic polymers last for many years. Why do these polymers last for so long? chemically unreactive biodegradable A no no B no yes C yes no D yes yes
- Question 36
The structure of a compound, G, is shown. G is in the same homologous series as ethanoic acid. …
- Question 37
The fractional distillation of petroleum is shown. paraffin fraction gasoline fraction refinery gas diesel oil lubricating fraction petroleum bitumen Which fraction is the least volatile? A bitumen B diesel oil C gasoline fraction D refinery gas
- Question 38
Which row shows the properties of methane? soluble in water state at room temperature gives a positive test with aqueous bromine A no gas no B no gas yes C yes liquid no D yes liquid yes
- Question 39
The formulae of five compounds are listed. …
- Question 40
Which process is used to make an alkene from a long-chain alkane? A combustion B condensation C cracking D polymerisation Group The Periodic Table of Elements 1 H hydrogen 1 2 He helium 4 I II III IV V VI …
Other Chemistry papers from Feb/March 2019
- 0620/22 Multiple choice (Extended)
- 0620/32 Theory (Core)
- 0620/42 Theory (Extended)
- 0620/62 Alternative to Practical