Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/13 Oct/Nov 2012 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 3, Oct/Nov 2012: 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
- 32
File names: 0620_w12_qp_13 · 0620_w12_ms_13
Grade thresholds for 0620/13 Oct/Nov 2012
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 |
|---|---|---|---|---|
| 32 | 0 | 24 | 0 | 19 |
Topics in this paper
Which syllabus chapters 0620/13 Oct/Nov 2012 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/13 Oct/Nov 2012
- Question 1
‘Particles moving very slowly from an area of high concentration to an area of low concentration.’ Which process is being described above? A a liquid being frozen B a solid melting C a substance diffusing through a liquid D a …
- Question 2
Solid W melts at exactly 54 °C and boils at exactly 302 °C. Solid X, when dissolved in water and examined using paper chromatography, shows a blue colour and a red colour. Which row is correct? contains only one substance …
- Question 3
Part of the instructions in an experiment reads as follows. Quickly add 50 cm3 of acid. What is the best piece of apparatus to use? A a burette B a conical flask C a measuring cylinder D a pipette
- Question 4
The nucleon number of an isotope of rubidium is 85. How many protons, neutrons and electrons are present in an atom of this isotope? protons neutrons electrons …
- Question 5
Which row gives the number of electrons in the outer electron shell of fluorine and of neon? …
- Question 6
In the molecules CH4, HCl and H2O, which atoms use all of their outer shell electrons in bonding? A C and Cl B C and H C Cl and …
- Question 7
The table shows the electronic structures of four atoms. atom electronic structure …
- Question 8
A compound has the formula CH3CO2H. How should the relative molecular mass, Mr, of this compound be calculated? …
- Question 9
In separate experiments, electricity was passed through concentrated aqueous sodium chloride and molten lead 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 10
The diagram shows an electrolysis experiment using metals X and Y as electrodes. aqueous solution …
- Question 11
A diagram for the energy change during an exothermic reaction is shown. energy reactants products For which reactions would this be an appropriate diagram? 1 CH4 …
- Question 12
The diagram shows a match. By striking the match, a chemical reaction takes place. Which statements about the chemical reaction are correct? type of reaction reason A endothermic because energy is used to strike the match B endothermic because energy …
- Question 13
Solid copper(II) sulfate can exist in two different forms, anhydrous and hydrated. One of these forms is blue and the other is white. The change between these two forms is reversible. blue form white form Which is the blue form …
- Question 14
Which statement describes what happens in the reaction shown? 2Mg + CO2 → 2MgO …
- Question 15
Which change does not increase the speed of reaction between zinc and hydrochloric acid? A adding a catalyst B decreasing the particle size of the zinc C decreasing the temperature D using more concentrated acid
- Question 16
Salts X and Y are separately dissolved in water. Samples of the solutions obtained are separately tested with dilute hydrochloric acid and with aqueous sodium hydroxide. In two of the tests, a gaseous product is formed. No precipitate is formed …
- Question 17
Some reactions involving sodium are shown. Which reaction does not involve the formation of a base? sodium sodium oxide sodium chloride sodium hydroxide …
- Question 18
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 14 and becomes constant at 7. B …
- Question 19
A compound is a salt if it A can neutralise an acid. B contains more than one element. C dissolves in water. D is formed when an acid reacts with a base.
- Question 20
The diagram shows an outline of the Periodic Table. …
- Question 21
Element X is in Group VII of the Periodic Table. It reacts with aqueous potassium bromide as shown. X2 + 2KBr → 2KX + Br2 Which statements about X are correct? relative atomic mass reactivity A greater than that of …
- Question 22
The table gives information about four elements. Which element is a transition metal? colour of element electrical conductivity of element colour of oxide A black high colourless B colourless low white C grey high red D yellow low colourless
- Question 23
Why are weather balloons filled with helium rather than hydrogen? A Helium is found in air. B Helium is less dense than hydrogen. C Helium is more dense than hydrogen. D Helium is unreactive.
- Question 24
The three statements below about aluminium are all correct. 1 Aluminium has an oxide ore. 2 Aluminium is extracted from its ore by electrolysis. 3 Aluminium is used to make cooking utensils. In which of these statements can ‘aluminium’ be …
- Question 25
Statement 1: An aluminium alloy containing a small amount of copper is stronger than pure aluminium. Statement 2: Alloys are made by mixing molten metals together and allowing them to cool. Which of the following is true? A Both statements …
- Question 26
Iron is extracted from its ore in a Blast Furnace. Hematite, coke, limestone and hot air are added to the furnace. Which explanation is not correct? A Coke burns and produces a high temperature. B Hematite is the ore containing …
- Question 27
How does the reactivity of potassium compare with that of sodium and how does the reactivity of calcium compare with that of magnesium? reactivity of potassium and sodium reactivity of calcium and magnesium A K greater than Na Ca greater …
- Question 28
Untreated water can spread diseases such as cholera. What can be added to drinking water to reduce the spread of such diseases? A carbon monoxide B chlorine C nitrogen monoxide D sulfur
- Question 29
Statement 1: The burning of fossil fuels containing sulfur is a cause of ‘acid rain’. Statement 2: Acid rain contains sulfur dioxide which is formed when sulfur compounds burn in the air. Which of the following is true? A Both …
- Question 30
Argon is a noble gas used to fill light bulbs. What is the approximate percentage of argon in air? …
- Question 31
The experiment shown was set up to investigate the rusting of iron. water iron nails Rusting occurs in this experiment because of the presence of A hydrogen and oxygen. B nitrogen and oxygen. C nitrogen and water. D oxygen and …
- Question 32
What are X and Y in the reaction shown? ammonium chloride + solution X → alkaline gas …
- Question 33
Which process does not produce carbon dioxide? A combustion of petrol B reaction between an acid and a metal hydroxide C reaction between an acid and a carbonate D respiration
- Question 34
Two industrial processes that involve heating are • extracting iron from its ore using a blast furnace, • making lime. In which of these processes is calcium carbonate used? extracting iron making lime …
- Question 35
Which structure shows a carboxylic acid? …
- Question 36
Which method is used to obtain petrol from petroleum? A crystallisation B diffusion C filtration D fractional distillation
- Question 37
Which group of compounds is part of a homologous series? A CH4, …
- Question 38
Bitumen is a substance obtained from the fractional distillation of petroleum. Which row describes its boiling point and the size of its molecules? boiling point size of molecules A high large B high small C low large D low small
- Question 39
A hydrocarbon A is cracked to make B and hydrogen. Compound C is formed by the addition polymerisation of B. To which homologous series do A, B and C belong? alkene alkane …
- Question 40
Which statement about ethanol is not correct? A It can be used as a fuel. B It can be used as a solvent. C It is formed by reaction between steam and ethane. D Its functional group is –OH. Group …
Other Chemistry papers from Oct/Nov 2012
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