Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 Oct/Nov 2019 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, Oct/Nov 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
- 24
File names: 0620_w19_qp_12 · 0620_w19_ms_12
Grade thresholds for 0620/12 Oct/Nov 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 |
|---|---|---|---|---|
| 24 | 21 | 19 | 16 | 12 |
Topics in this paper
Which syllabus chapters 0620/12 Oct/Nov 2019 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 Oct/Nov 2019
- Question 1
The diagram shows a cup of hot tea. Which row describes the water particles in the air above the cup compared with the water particles in the cup? moving faster closer together …
- Question 2
A student is asked to measure the time taken for 0.4 g of magnesium carbonate to react completely with 25.0 cm3 of dilute hydrochloric acid. Which pieces of apparatus does the student need? A balance, stop-clock, pipette B balance, stop-clock, …
- Question 3
Petroleum is a mixture. Which method is used to separate petroleum? A chromatography B cracking C filtration D fractional distillation
- Question 4
Magnesium hydroxide can be obtained from sea water as shown. calcium hydroxide solution reaction vessel separation stage solid magnesium hydroxide sea water containing magnesium ions aqueous calcium chloride Which process is used in the separation stage to separate solid magnesium …
- Question 5
What is the total number of electrons in one molecule of ammonia, NH3? …
- Question 6
An isotope of lithium has the symbol Li …
- Question 7
Which statement about an alloy is correct? A It is a compound made of two or more elements, one of which is a metal. B It is a layer of a metal plated onto another metal. C It is a …
- Question 8
Graphite is a form of carbon. Why can graphite be used as a lubricant? A Graphite contains unbonded electrons which move through the structure. B Graphite contains weak covalent bonds so the atoms move easily. C Graphite has a low …
- Question 9
Magnesium burns in oxygen to form magnesium oxide. The equation for the reaction is shown. 2Mg …
- Question 10
The apparatus used for electrolysis is shown. electrodes electrolyte power supply Which statement is correct? A Copper forms at the anode in some electrolysis reactions. B Hydrogen forms at the cathode in some electrolysis reactions. C Oxygen forms at the …
- Question 11
The temperature of the water in two beakers, X and Y, is measured as …
- Question 12
Which reaction produces a white-coloured substance? A adding water to anhydrous cobalt(II) chloride B adding water to anhydrous copper(II) sulfate C heating hydrated cobalt(II) chloride D heating hydrated copper(II) sulfate
- Question 13
Four students collect the gas produced from the reaction of calcium carbonate with dilute hydrochloric acid. Each student records the time taken to collect a volume of gas. Which results show the highest average rate of reaction? A 15 cm3 …
- Question 14
Which row identifies a chemical and a physical change? chemical change physical change A boiling ethanol burning ethanol B burning ethanol evaporating ethanol C dissolving ethanol in water burning ethanol D evaporating ethanol dissolving ethanol in water
- Question 15
When magnesium is heated with zinc oxide a reaction occurs. The equation is shown. Mg + ZnO → MgO + Zn Which substance is oxidised? A magnesium B magnesium oxide C zinc D zinc oxide
- Question 16
Which statement describes the properties of hydrochloric acid? A Carbon dioxide is produced when limestone reacts with hydrochloric acid. B Hydrogen is produced when sodium hydroxide reacts with hydrochloric acid. C Methyl orange turns yellow in strong hydrochloric acid. D …
- Question 17
A sample of X is heated with aqueous sodium hydroxide and small pieces of aluminium. A gas is produced which turns red litmus paper blue. Aqueous sodium hydroxide solution is added to a second sample of X. A pale green …
- Question 18
Which element forms an acidic oxide? A calcium B lithium C magnesium D sulfur
- Question 19
A method used to make copper(II) sulfate crystals is shown. 1 Place dilute sulfuric acid in a beaker. 2 Warm the acid. 3 Add copper(II) oxide until it is in excess. 4 Filter the mixture. 5 Evaporate the filtrate until …
- Question 20
Which statements describe changes that occur from left to right across a period of the Periodic Table? 1 The atomic number of the elements increases. 2 The metallic character of the elements decreases. 3 The physical state of the elements …
- Question 21
Which pair of elements reacts together most violently? A chlorine and lithium B chlorine and potassium C iodine and lithium D iodine and potassium
- Question 22
Which is a typical property of transition elements? A can act as catalysts B poor electrical conductivity C low melting point D low density
- Question 23
Helium is a noble gas. Which statement about helium is correct? A It has eight electrons in its outer shell. B It is a diatomic gas. C It is reactive. D It is used for filling balloons.
- Question 24
Some properties of substance X are listed. ● It conducts electricity when molten. ● It has a high melting point. ● It burns in oxygen and the oxide dissolves in water to give a solution with pH 11. What is …
- Question 25
Four unknown metals, Q, R, S and T, are reacted with water, steam and dilute hydrochloric acid. The results are shown in the table. reaction with water reaction with steam reaction with dilute hydrochloric acid Q slow reaction fast reaction …
- Question 26
What is added to molten iron to make steel? A small amounts of carbon B limestone and coke C calcium oxide and oxygen D hematite and air
- Question 27
Which row describes the uses of aluminium, copper and mild steel? aluminium copper mild steel A aircraft bodies electrical wiring car bodies B car bodies cooking utensils electrical wiring C electrical wiring aircraft bodies food containers D food containers aircraft …
- Question 28
River water contains soluble impurities, insoluble impurities and bacteria. River water is made safe to drink by filtration and chlorination. Which statement is correct? A Filtration removes bacteria and insoluble impurities, and chlorination removes soluble impurities. B Filtration removes insoluble …
- Question 29
Clean, dry air contains nitrogen, oxygen and small amounts of other gases. The noble gases have been left out of the table. Which row shows the composition of clean, dry air? nitrogen / % oxygen / % other gases …
- Question 30
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 31
Farmers add calcium oxide (lime) and ammonium salts to their fields. The compounds are not added at the same time because they react with each other. Which gas is produced in this reaction? A ammonia B carbon dioxide C hydrogen …
- Question 32
Which information about carbon dioxide and methane is correct? carbon dioxide methane A formed when vegetation decomposes key B greenhouse gas …
- Question 33
Which statement about the uses of sulfur dioxide is not correct? A It is used as a bleach in the manufacture of paper. B It is used as a food preservative. C It is used in the manufacture of cement. …
- Question 34
Which statement about limestone and lime is correct? A Limestone combines with water to produce slaked lime. B Lime is obtained from limestone by oxidation. C Lime is used in the desulfurisation of flue gases. D Lime is used in …
- Question 35
Some fractions obtained from petroleum are listed. fraction use position collected in the fractionating column 1 gasoline waxes and polishes below refinery gas 2 bitumen making roads above kerosene 3 kerosene jet fuel below gasoline 4 refinery gas heating and …
- Question 36
The structures of three compounds are shown. …
- Question 37
Which statement about ethane is correct? A It rapidly decolourises aqueous bromine. B It does not burn. C It forms long-chain compounds called polymers. D It only contains single bonds between its atoms.
- Question 38
Which products are obtained by the cracking of an alkane? alkene hydrogen water …
- Question 39
Which statement about an aqueous solution of ethanoic acid is correct? A It reacts with magnesium to form water as one of the products. B It reacts with sodium carbonate to form carbon dioxide. C It reacts with sodium hydroxide …
- Question 40
The diagram shows the structure of a monomer and of the polymer made from it. …
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