Question detail
What happens to the chemical properties of substances in 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. They remain unchanged.
- B. They change completely.
- C. They become more reactive.
- D. They combine to form new substances.
Answer
The correct option is They remain unchanged..
Explanation
The correct option is They remain unchanged.. They remain unchanged. is correct because it directly supports the approved learning objective to suggest suitable separation and purification techniques when given information about a mixture. 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 c80a5676 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misunderstanding Mixture Separation Techniques
Students often suggest using filtration for separating a mixture of two liquids.
Filtration is only suitable for separating solids from liquids, not for liquid-liquid mixtures. Instead, suggest distillation for separating liquids.
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