Elements, compounds and mixtures: past paper questions
Real questions on elements, compounds and mixtures
The newest 20 of 28 written questions. Open one to see it on the real paper.
- 0971/32 · May/June 2026 · Q1b[2]
(b) State which two substances are elements. .......... eeeeeeeeeeeeeeeeeeeeeeeeeeeeettseetssteettsttetteeees [2]
See it on the paper → - 0971/42 · May/June 2026 · Q1a(i)[1]
atoms with 11 protons
See it on the paper → - 0971/42 · May/June 2026 · Q1a(ii)[1]
atoms with 35 electrons
See it on the paper → - 0971/42 · May/June 2026 · Q1a(iii)[1]
molecules with an M, of 254.
See it on the paper → - 0971/42 · May/June 2026 · Q5a(i)[2]
(i) State one source of hydrogen and one source of nitrogen. 1a \V {0 [kee [-) 9 ee cere TLFOG oases .......... ..........
See it on the paper → - 0971/42 · May/June 2026 · Q6b(i)[1]
Deduce the number of electrons in a molecule of A.
See it on the paper → - 0971/32 · October/November 2025 · Q1d[1]
is in Period 3 and forms an ion with a charge of 1– when it reacts.
See it on the paper → - 0971/31 · May/June 2025 · Q2a(i)[1]
State the chemical name of CaCO 3 .
See it on the paper → - 0971/32 · May/June 2025 · Q2a(i)[1]
State the chemical name of MgSO 4 .
See it on the paper → - 0971/32 · October/November 2024 · Q1a(iv)[1]
forms an ion that gives a light green colour in a flame test
See it on the paper → - 0971/31 · May/June 2024 · Q2a(i)[1]
Name the non-metallic element in Table 2.1 that has the lowest percentage by mass.
See it on the paper → - 0971/32 · May/June 2024 · Q1a(ii)[1]
a compound with a high melting point
See it on the paper → - 0971/32 · May/June 2023 · Q4a[1]
Chlorine has diatomic molecules. Define the term diatomic.
See it on the paper → - 0971/41 · May/June 2023 · Q6a(ii)[1]
Name Fe 2 O 3 . Include the oxidation number of iron.
See it on the paper → - 0971/31 · May/June 2022 · Q5d(ii)[1]
State one adverse effect of lead on health.
See it on the paper → - 0971/32 · May/June 2022 · Q8e[1]
State one use of calcium carbonate. [Total: 7]
See it on the paper → - 0971/42 · May/June 2022 · Q1h[1]
is found in the ore zinc blende. �������������������������������������������������������������������������������������������� [Total: 8] Question 2 starts on the next page.
See it on the paper → - 0971/32 · October/November 2020 · Q1b(i)[1]
State the meaning of the term element.
See it on the paper → - 0971/42 · October/November 2020 · Q2a[1]
Give the formula of the dilute acid which reacts with a metal carbonate to form a nitrate salt.
See it on the paper → - 0971/31 · May/June 2020 · Q8b[1]
Sulfur is an element. What is meant by the term element ?
See it on the paper →
What examiners said
Most candidates gave the correct chemical name for CaCO3. Candidates who performed less well overall tended to construct their own system and named it as ‘calcium carbon oxide’ or ‘calcium cobalt’.
— Examiner report, May/June 2025, 0971/31 Q2(a)(i) (Cambridge)
There were many misunderstandings regarding this question. Some merely gave the oxidation number of iron without naming the compound. Iron(II) oxide was commonly seen as was iron(III) trioxide.
— Examiner report, May/June 2023, 0971/41 Q6(a)(ii) (Cambridge)
A minority of the candidates gave answers relating to adverse effects on the brain or nervous system. Most candidates suggested effects on breathing or lung damage. Others suggested problems more specific to carbon monoxide or sulfur dioxide than to lead. A significant number of candidates suggested that lead either causes cancer or gave vague answers such as ‘affects the nerves’ without specifyin...
— Examiner report, May/June 2022, 0971/31 Q5(d)(ii) (Cambridge)
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