A manufacturer produces alloy T for use in garden tools. Which statement identifies the feature that makes alloy T a formulation rather than simply a mixture?
The components include more than one substance in the same material
The components can be separated from each other by physical methods
The components are combined in fixed proportions to give useful properties
The components are present together without being chemically bonded
113 exam-style questions on AQA GCSE Chemistry 8.1 Purity, formulations and chromatography, covering 8.1.1 Pure substances, 8.1.2 Formulations, and 8.1.3 Chromatography. Each one has a worked solution and a mark scheme showing where the marks go.