MCQ
Which of the following has a higher boiling point?
- AButanol
- BButanal
- CBoth of them have similar boiling point
- DCannot say anything
✓
Answer
- Butanol
Explanation:
There is a large difference between boiling points of butanol and butanal, although they have almost the same solubility in water.
Butanol contains -OH group and can form hydrogen bonds. Hence, the molecules are associated. A large amount of energy is required to break the association.
Hence, butanol has a higher boiling point. Hydrogen bonding is not possible in butanal.
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