Cambridge IGCSE · 0620 · Paper 1 · Multiple choice (Core)
Chemistry 0620/12 Feb/March 2025 past paper
Cambridge IGCSE Chemistry (0620) Paper 1 (Multiple choice (Core)), variant 2, Feb/March 2025: the question paper and its official mark scheme, 40 questions worth 40 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
- Grade A from
- 21
File names: 0620_m25_qp_12 · 0620_m25_ms_12
Grade thresholds for 0620/12 Feb/March 2025
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 |
|---|---|---|---|---|
| 21 | 19 | 17 | 14 | 11 |
Topics in this paper
Which syllabus chapters 0620/12 Feb/March 2025 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/12 Feb/March 2025
- Question 1
Substance L takes the shape of the container that holds it. What could be the state of matter of substance L? A liquid or gas B gas or solid C solid or liquid D solid only
- Question 2
The melting points and boiling points of pure substances M, N and O are shown. …
- Question 3
Which statement explains why the noble gases are unreactive? A They are in the same group of the Periodic Table. B They are gases at room temperature. C They each have a full outer electron shell. D They are found …
- Question 4
What is the electronic configuration of a P3– ion? …
- Question 5
Some information about four metal atoms or ions is shown. atom or ion charge proton number number of electrons nucleon number …
- Question 6
Which row describes the changes to the atoms when a metal and a non-metal react together? metal atoms non-metal atoms A gain electrons to form anions lose electrons to form cations B gain electrons to form cations lose electrons to …
- Question 7
In the following diagrams, X and Y are atoms of different elements. Which diagram correctly shows the arrangement of outer shell electrons in a molecule of methane? …
- Question 8
Which pathway describes the properties of graphite? Is it covalently bonded? Does it conduct electricity when solid? Does it conduct electricity when solid? yes no yes no D C yes no B A
- Question 9
Which row identifies the formula of the named substance? substance formula A cobalt(II) chloride CuCl 2 B ethane C2H6 C helium He2 D iron(III) oxide Fe3O2
- Question 10
Antifreeze contains a mixture of water and ethylene glycol. The diagram shows their displayed formulae. …
- Question 11
The equation for the reaction of magnesium with oxygen is shown. 2Mg …
- Question 12
Which products are formed when dilute sulfuric acid undergoes electrolysis? product formed at the anode product formed at the cathode A oxygen hydrogen B hydrogen oxygen C sulfur dioxide hydrogen D oxygen sulfur dioxide
- Question 13
The diagram shows an experiment to electroplate a nickel spoon with silver. electrolyte nickel spoon power supply Which row correctly describes the positive electrode, the negative electrode and the electrolyte? positive electrode negative electrode electrolyte A nickel spoon pure nickel …
- Question 14
When dilute sulfuric acid reacts with aqueous sodium hydroxide, the temperature of the solution increases. Which words describe this reaction? A endothermic and neutralisation B endothermic and redox C exothermic and neutralisation D exothermic and redox
- Question 15
Which statement is correct for both physical and chemical changes? A Covalent bonds are broken and formed during the changes. B The total mass of substance is the same before and after the changes. C The changes are usually reversible. …
- Question 16
A sample of calcium carbonate reacts with dilute hydrochloric acid to produce a final volume of 60 cm3 of gas. The reaction finishes after 120 seconds. The experiment is repeated at a lower temperature. All other conditions stay the same. …
- Question 17
In which equation is the iron oxidised? …
- Question 18
HOCl is an acid. NH4OH is an alkali. Which row shows the ions present in aqueous solutions that identify the acid and the alkali? HOCl (aq) NH4OH(aq) …
- Question 19
Which elements form an oxide that reacts with water to produce a blue solution with thymolphthalein? 1 calcium 2 carbon 3 sulfur A 1 and …
- Question 20
A sample of fertiliser is tested by warming it with aqueous sodium hydroxide. A colourless gas is produced which turns damp red litmus paper blue. Which element, essential for plant growth, must be present? A nitrogen B phosphorus C potassium …
- Question 21
Insoluble solid magnesium carbonate reacts with dilute sulfuric acid. The equation is shown. magnesium carbonate + sulfuric acid magnesium sulfate + water + carbon dioxide The steps used to make crystals of magnesium sulfate are listed. step 1 Add …
- Question 22
Which trend occurs across the period from sodium to argon? A a change from metal to non-metal B an increase in melting point C a more violent reaction with water D an increase in electrical conductivity
- Question 23
Which statement about the element bromine is correct? A It displaces chlorine from aqueous potassium chloride. B It has a higher density than chlorine. C It is a diatomic metal. D It is a green gas at room temperature.
- Question 24
Metallic element X has a high density. Which part of the Periodic Table is X in? A Group I B halogens C transition elements D Group VIII
- Question 25
Which statement about the uses of metals is correct? A Aluminium has a low density and good electrical conductivity which make it suitable for overhead electrical cables. B Aluminium food containers can only be used for a short time because …
- Question 26
Steel bridges are painted to help stop rust from forming on their surfaces. What causes steel to rust? A water, oxygen and sunlight B water and oxygen only C water and sunlight only D oxygen and sunlight only
- Question 27
Which two metals are mixed together to make brass? 1 tin 2 zinc 3 nickel 4 copper A 1 and …
- Question 28
Metal M is between zinc and iron in the reactivity series. Which statements about metal M are correct? 1 It reacts with cold water to produce hydrogen gas. 2 It does not react with cold water but will react with …
- Question 29
What is the colour change when water is added to anhydrous copper(II) sulfate? A blue to white B blue to pink C pink to blue D white to blue
- Question 30
Which statement about the composition of clean, dry air is correct? A It contains 78% oxygen. B It contains 21% nitrogen. C It contains less than 1% argon. D It contains 4% carbon dioxide.
- Question 31
Which row identifies a source and an adverse effect of methane? source adverse effect A car engines acid rain B car engines climate change C decomposition of vegetation acid rain D decomposition of vegetation climate change
- Question 32
Which statements about alkenes are correct? 1 Propene is a saturated hydrocarbon. 2 Ethene is made by heating long-chain alkanes to a high temperature in the presence of a catalyst. 3 Hexene reacts with aqueous bromine, changing its colour from …
- Question 33
The table shows the formulae and names of some organic compounds. formula name 1 CH3Cl chloroethane 2 CH3COOH ethanoic acid 3 BrCH2CH2Br 1,2-dibromoethane 4 (CH3COO)2Ca calcium methanoate Which rows give the correct name for the formula shown? A 1 and …
- Question 34
Which gas is the main constituent of natural gas? A hydrogen B nitrogen C methane D oxygen
- Question 35
A sample of petroleum is separated into three fractions, X, Y and Z, using fractional distillation. Some properties of X, Y and Z are listed. ● X is more viscous than …
- Question 36
Two salt solutions, P and Q, are tested. The table shows the results. test …
- Question 37
A small quantity of a solid, E, is added to a large excess of aqueous ethanoic acid. No bubbles of gas are seen and the solid dissolves to give a colourless solution. What is solid E? A calcium hydroxide B …
- Question 38
Ethanol is manufactured by two different processes. Which raw materials are used by the two processes to make ethanol? 1 glucose 2 ethane 3 ethene 4 steam …
- Question 39
What is used to test for chlorine? A a glowing splint B damp litmus paper C limewater D aqueous potassium manganate(VII)
- Question 40
Which statement about paper chromatography is correct? A It can show if a substance is pure. B It can separate a mixture of insoluble substances. C It can separate a compound into its elements. D It provides a way of …
Other Chemistry papers from Feb/March 2025
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