Question detail
What is the primary use of mass spectrometry in organic analysis?
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. To determine boiling points
- B. To identify molecular ion peaks
- C. To measure pH levels
- D. To assess color changes
Answer
To identify molecular ion peaks
Explanation
Mass spectrometry is primarily used to identify molecular ion peaks, which correspond to the molecular weight of the compounds being analyzed, aiding in 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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