Question detail
In the context of organic analysis, what does fragmentation evidence support?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Organic analysis
Question
- A. The presence of a functional group
- B. The molecular weight of a compound
- C. The structural identification of a compound
- D. The boiling point of a substance
Answer
The structural identification of a compound
Explanation
Fragmentation evidence in mass spectrometry provides information about the structure of a compound by showing how it breaks apart, which supports the overall structural identification.
Common mistake
Identifying Functional Groups
Students often confuse the test-tube reactions for alcohols and aldehydes, leading to incorrect identification.
To correctly identify functional groups, remember that alcohols react with acidified potassium dichromate to produce a color change from orange to green, while aldehydes also react but may produce a different observable change when tested with Tollens' reagent, forming a silver mirror.
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