Question detail
What is the structural formula of propan-2-one?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Aldehydes and ketones (A-level only)
Question
- A. CH3COCH3
- B. CH3CHO
- C. C2H5COOH
- D. C3H6O
Answer
CH3COCH3
Explanation
Propan-2-one, also known as acetone, has the structural formula CH3COCH3, indicating a carbonyl group between two methyl groups.
Common mistake
Incorrect Naming of Aldehydes
Students often confuse the naming of aldehydes with ketones, mistakenly using the suffix '-one' instead of '-al'.
Remember that aldehydes are named with the suffix '-al' (e.g., ethanal), while ketones use '-one' (e.g., propanone).
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