Question detail
How can compounds be separated into their constituent elements?
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. By chemical reactions
- B. By physical means
- C. By heating
- D. By mixing
Answer
The correct option is By chemical reactions.
Explanation
The correct option is By chemical reactions. By chemical reactions is correct because it directly supports the approved learning objective to define an atom as the smallest part of an element that can exist. This is tested in the subtopic Atoms, elements and compounds 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 Atoms, elements and compounds precisely. Repair marker cb1f1491 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Confusing Atoms and Elements
Students often think that an atom and an element are the same thing.
Remember that an atom is the smallest part of an element that can exist, while an element is made up of one type of atom.
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