0654.C9.3.01 — Describe alloys as mixtures of a metal with other elements, including: (a) . brass as a mixture of copper and zinc (b) . stainless steel as : past paper questions
Real questions on 0654.c9.3.01 — describe alloys as mixtures of a metal with other elements, including: (a) . brass as a mixture of copper and zinc (b) . stainless steel as
The newest 11 of 11 written questions. Open one to see it on the real paper.
- 0973/32 · May/June 2025 · Q7d(i)[1]
State what is meant by an alloy.
See it on the paper → - 0973/31 · October/November 2024 · Q5d(i)[1]
Apart from cost, suggest why brass is used to make keys but pure copper is not used to make keys.
See it on the paper → - 0973/31 · October/November 2024 · Q5d(ii)[1]
Copper has a melting point of 1084 °C. Zinc has a melting point of 420 °C. The brass alloy has a range of melting points from 905 °C to 932 °C. Explain why brass does not have a single melting point.
See it on the paper → - 0973/32 · May/June 2024 · Q11b(iii)[1]
Suggest why the spanner is made from an alloy of iron and not pure iron.
See it on the paper → - 0973/32 · May/June 2023 · Q2c(i)[1]
Duralumin is an alloy of aluminium. Table 2.1 shows the percentage composition of duralumin. Table 2.1 metal percentage by mass in the alloy / % aluminium 95 copper 4 magnesium 1 Calculate the mass of aluminium in 20 kg of duralumin. mass of aluminium = kg
See it on the paper → - 0973/32 · May/June 2023 · Q2c(ii)[1]
Table 2.2 shows the melting points of aluminium, copper, magnesium and duralumin. Table 2.2 metal melting point / °C aluminium 660 copper 1085 magnesium 650 duralumin 550–660 Duralumin does not have a precise melting point but melts over a range of temperatures. Explain why duralumin does not have a precise melting poi...
See it on the paper → - 0973/32 · May/June 2022 · Q2c(i)[1]
State what is meant by the term alloy.
See it on the paper → - 0973/31 · October/November 2020 · Q2e(iii)[1]
State one way, other than forming a barrier, that prevents iron from rusting.
See it on the paper → - 0973/32 · May/June 2020 · Q5c(i)[1]
State the meaning of the word alloy.
See it on the paper → - 0973/32 · May/June 2020 · Q5c(ii)[1]
Aircraft parts are made of aluminium alloys rather than pure aluminium. Suggest why. Use ideas about physical properties.
See it on the paper → - 0973/42 · May/June 2019 · Q8c(ii)[1]
State the meaning of the term alloy.
See it on the paper →
What examiners said
Candidates often expressed part of the meaning: that an alloy is a mixture or that it is a metal. A number misused the term element, describing an alloy as an element made of metals. Despite these mistakes a good number were able to link the ideas and give a complete answer to gain the mark.
— Examiner report, May/June 2025, 0973/32 Q7(d)(i) (Cambridge)
Many candidates continued to suggest barrier methods in this part rather than making alloys.
— Examiner report, October/November 2020, 0973/31 Q2(e)(iii) (Cambridge)
Most candidates correctly described an alloy as a mixture of metals.
— Examiner report, May/June 2019, 0973/42 Q8(c)(ii) (Cambridge)
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