Question detail
Which of the following best describes a mixture?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
Question
- A. A combination of two or more substances that are not chemically combined.
- B. A combination of elements that are chemically bonded.
- C. A single substance with a uniform composition.
- D. A reaction between two or more compounds.
Answer
The correct option is A combination of two or more substances that are not chemically combined..
Explanation
The correct option is A combination of two or more substances that are not chemically combined.. A combination of two or more substances that are not chemically combined. is correct because it directly supports the approved learning objective to explain why the chemical properties of substances in a mixture are unchanged. This is tested in the subtopic Mixtures within A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, so the reasoning must stay within AQA GCSE Chemistry 8462 Unit 4.1. The other options are weaker because they either confuse a nearby Chemistry concept, use the wrong subtopic context, or do not answer Mixtures precisely. Repair marker 16d4ae24 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misunderstanding Mixture Properties
Students often think that the chemical properties of substances in a mixture change due to their combination.
Emphasize that in a mixture, the individual substances retain their original chemical properties because they are not chemically combined.
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