Chemistry · Oct / Nov 2018 · Paper 11 · Question 27
5070Alloys and their properties
The diagram shows the structure of an alloy. Which statement about alloys is correct?
- AAlloys can only be formed by mixing copper or iron with other metals.
- BHigh carbon steel alloys are soft and easily shaped.
- CIn an alloy there is attraction between positive ions and a ‘sea of electrons’.
- DThe alloy brass has a chemical formula.
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Correct answer: C. In an alloy there is attraction between positive ions and a ‘sea of electrons’.
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