Question 1 — IGCSE 0653 May/Jun 2023 Paper 13 Q32
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Correct answer: B
Cambridge IGCSE·Combined Sciences 0653·Chemistry
Metals
Key knowledge — Metals
Key facts & rules
- Reactivity series (most to least): K, Na, Ca, Mg, Al, (C), Zn, Fe, (H), Cu, Ag, Au, Pt.
- Displacement: more reactive metal displaces less reactive metal from solution.
- Iron extracted by blast furnace: iron ore + coke + limestone → iron + CO₂ (reduction of Fe₂O₃ by CO).
- Aluminium extracted by electrolysis (too reactive for carbon reduction) — very high energy cost.
- Rusting: iron + oxygen + water → iron(III) oxide (hydrated). Prevented by: painting, galvanising, electroplating, sacrificial protection.
- Galvanising: coating iron with zinc (zinc is higher in reactivity series — acts as sacrificial anode).
- Alloys: steel (Fe + C — harder), stainless steel (Fe + C + Cr + Ni), brass (Cu + Zn), bronze (Cu + Sn).
IGCSE Chemistry — Metals
24 Cambridge IGCSE 0653 Combined Sciences past paper questions on metals, across Theory, Multiple Choice and Alternative to Practical.
About Metals on IGCSE 0653
Metals can be arranged in a reactivity series. More reactive metals displace less reactive ones from solutions. Iron is extracted in the blast furnace; aluminium by electrolysis. Alloys such as steel and brass have different properties from pure metals.
What's covered:
- Reactivity series of metals
- Displacement reactions
- Extraction of iron: blast furnace reactions
- Extraction of aluminium: electrolysis
- Rusting and its prevention
- Alloys: steel, brass, bronze, aluminium alloys
Multiple choice
Metals — Core MCQ8 · Paper 1
Question 2 — IGCSE 0653 May/Jun 2023 Paper 13 Q33
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Correct answer: C
Question 3 — IGCSE 0653 May/Jun 2023 Paper 13 Q34
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Correct answer: D
Question 4 — IGCSE 0653 May/Jun 2023 Paper 13 Q35
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Correct answer: C
Question 5 — IGCSE 0653 May/Jun 2025 Paper 13 Q24
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Correct answer: B
Question 6 — IGCSE 0653 May/Jun 2025 Paper 13 Q25
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Correct answer: D
Question 7 — IGCSE 0653 May/Jun 2025 Paper 13 Q26
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Correct answer: C
Question 8 — IGCSE 0653 May/Jun 2025 Paper 13 Q27
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Correct answer: B
Metals — Extended MCQ16 · Paper 2
Question 1 — IGCSE 0653 May/Jun 2024 Paper 21 Q32
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Correct answer: B
Question 2 — IGCSE 0653 May/Jun 2024 Paper 21 Q33
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Correct answer: A
Question 3 — IGCSE 0653 May/Jun 2024 Paper 21 Q34
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Correct answer: A
Question 4 — IGCSE 0653 May/Jun 2024 Paper 21 Q35
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Correct answer: D
Question 5 — IGCSE 0653 May/Jun 2024 Paper 21 Q36
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Correct answer: C
Question 6 — IGCSE 0653 May/Jun 2024 Paper 21 Q37
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Correct answer: C
Question 7 — IGCSE 0653 May/Jun 2025 Paper 23 Q25
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Correct answer: C
Question 8 — IGCSE 0653 May/Jun 2025 Paper 23 Q26
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Correct answer: A
Question 9 — IGCSE 0653 May/Jun 2025 Paper 23 Q27
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Correct answer: B
Question 10 — IGCSE 0653 May/Jun 2025 Paper 23 Q33
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Correct answer: A
Question 11 — IGCSE 0653 May/Jun 2025 Paper 23 Q34
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Correct answer: D
Question 12 — IGCSE 0653 May/Jun 2025 Paper 23 Q35
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Correct answer: B
Question 13 — IGCSE 0653 May/Jun 2025 Paper 23 Q36
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Correct answer: C
Question 14 — IGCSE 0653 Oct/Nov 2023 Paper 21 Q25
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Correct answer: A
Question 15 — IGCSE 0653 Oct/Nov 2023 Paper 21 Q26
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Correct answer: B
Question 16 — IGCSE 0653 Oct/Nov 2023 Paper 21 Q27
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Correct answer: D
All Metals questions in this collection
| Type | Level | Paper | Session | Q# | Marks | Answer / key |
|---|---|---|---|---|---|---|
| MCQ | Core | Paper 13 | May/Jun 2023 | Q32 | 1 mark | B |
| MCQ | Core | Paper 13 | May/Jun 2023 | Q33 | 1 mark | C |
| MCQ | Core | Paper 13 | May/Jun 2023 | Q34 | 1 mark | D |
| MCQ | Core | Paper 13 | May/Jun 2023 | Q35 | 1 mark | C |
| MCQ | Core | Paper 13 | May/Jun 2025 | Q24 | 1 mark | B |
| MCQ | Core | Paper 13 | May/Jun 2025 | Q25 | 1 mark | D |
| MCQ | Core | Paper 13 | May/Jun 2025 | Q26 | 1 mark | C |
| MCQ | Core | Paper 13 | May/Jun 2025 | Q27 | 1 mark | B |
| MCQ | Extended | Paper 21 | May/Jun 2024 | Q32 | 1 mark | B |
| MCQ | Extended | Paper 21 | May/Jun 2024 | Q33 | 1 mark | A |
| MCQ | Extended | Paper 21 | May/Jun 2024 | Q34 | 1 mark | A |
| MCQ | Extended | Paper 21 | May/Jun 2024 | Q35 | 1 mark | D |
| MCQ | Extended | Paper 21 | May/Jun 2024 | Q36 | 1 mark | C |
| MCQ | Extended | Paper 21 | May/Jun 2024 | Q37 | 1 mark | C |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q25 | 1 mark | C |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q26 | 1 mark | A |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q27 | 1 mark | B |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q33 | 1 mark | A |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q34 | 1 mark | D |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q35 | 1 mark | B |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q36 | 1 mark | C |
| MCQ | Extended | Paper 21 | Oct/Nov 2023 | Q25 | 1 mark | A |
| MCQ | Extended | Paper 21 | Oct/Nov 2023 | Q26 | 1 mark | B |
| MCQ | Extended | Paper 21 | Oct/Nov 2023 | Q27 | 1 mark | D |