Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/11 Oct/Nov 2012 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 1, 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_11 · 0620_w12_ms_11
Grade thresholds for 0620/11 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 | 25 | 0 | 20 |
Topics in this paper
Which syllabus chapters 0620/11 Oct/Nov 2012 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/11 Oct/Nov 2012
- Question 1
- Question 2
A mixture of sulfur and iron filings needs to be separated. The solubilities of sulfur and iron filings in water and carbon disulfide are shown in the table below. solubility in water solubility in carbon disulfide sulfur iron …
- 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
Which statements comparing the properties of electrons, neutrons and protons are correct? neutrons and protons are both heavier than electrons only electrons and neutrons are charged …
- 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
The diagram shows the electrolysis of concentrated aqueous sodium chloride. + – positive electrode negative electrode concentrated aqueous sodium chloride carbon rods What is produced at each of the electrodes? product at cathode product at anode A hydrogen chlorine B …
- Question 10
The diagram shows an electrolysis experiment using metals X and Y as electrodes. aqueous solution …
- Question 11
The diagrams show the difference in energies of the reactants and products in two types of reaction. energy diagram 1 heat taken in products reactants energy diagram 2 heat given out reactants products Which diagram and which type of energy …
- 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
Separate samples of anhydrous and hydrated copper(II) sulfate are heated. heat anhydrous copper(II) sulfate heat hydrated copper(II) sulfate Which shows the correct colour changes? anhydrous copper(II) sulfate hydrated copper(II) sulfate A blue to white white to blue B no change …
- Question 14
Which change is an oxidation? A FeO to Fe2O3 B Fe2O3 to FeO C H2O2 to …
- 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
Which of these pairs of aqueous ions both react with dilute sulfuric acid to give a visible result? A Ba2+ and Cl − B Ba2+ and CO3 2− C NH4 + and Cl − D NH4 + and CO3 2−
- Question 17
Element X forms an acidic, covalent oxide. Which row shows how many electrons there could be in the outer shell of an atom of …
- 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
The element rubidium, Rb, is immediately below potassium in the Periodic Table. It reacts with bromine to form the compound rubidium bromide. Which descriptions of this compound are correct? type of bond formula colour A covalent RbBr brown B covalent …
- 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
Some properties of aluminium are listed. 1 It has mechanical strength. 2 It conducts heat. 3 It is resistant to corrosion. 4 It has a low density. Which properties make aluminium useful for making the bodies of aircraft? …
- Question 25
Brass is used in electrical equipment. It contains two 1 elements. Together they form 2 . Which words correctly complete gaps 1 and …
- Question 26
The Basic Oxygen Process converts iron into steel. In step 1, oxygen is blown into impure molten iron. In step 2, oxides are removed by reaction with calcium oxide. waste gases oxygen molten iron and calcium oxide Which chemical reaction …
- Question 27
Pieces of copper, iron, magnesium and zinc are added to separate test-tubes containing dilute hydrochloric acid. Which test-tube contains iron and dilute hydrochloric acid? …
- Question 28
Which processes are used in the treatment of water? A filtration and chlorination B filtration and reduction C neutralisation and chlorination D neutralisation and reduction
- Question 29
A factory burns coal with a high sulfur content. Which pollutant is most likely to lead to the death of trees? A carbon dioxide B carbon monoxide C lead compounds D sulfur dioxide
- Question 30
What is the correct order of abundance of the gases in the air? A nitrogen → oxygen → argon → carbon dioxide B nitrogen → oxygen → carbon dioxide → argon C oxygen → nitrogen → argon → carbon dioxide …
- 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
The diagram shows two substances, X and Y, being heated together. damp Universal Indicator paper substances X and Y heat The Universal Indicator paper turns blue during the experiment. What are substances X and Y? A ammonium nitrate and hydrochloric …
- Question 33
Carbon dioxide is produced when dilute hydrochloric acid reacts with A calcium sulfate. B carbon. C copper(II) carbonate. D limewater.
- Question 34
A student is asked to draw a diagram showing the uses of limestone. limestone making cement making lime added, with hematite, to a blast furnace …
- Question 35
Which structure is correctly named? …
- Question 36
Which properties of the different compounds in petroleum enable its separation into fractions? 1 boiling point 2 chain length 3 chemical reactivity 4 solubility in water A 1 and …
- Question 37
Alkenes have the general formula CnH2n. Which of the following is an alkene? A CH2 B 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 X is cracked to make Y and hydrogen. Compound Z is formed by the addition polymerisation of Y. To which homologous series do X, Y and Z belong? alkane alkene …
- Question 40
Which row is correct for ethanol? burns made by fermentation …
Other Chemistry papers from Oct/Nov 2012
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