Which of the following has the highest boiling point?
Correct answer: B. Propan-1-ol
- A. Propanal
- B. Propan-1-ol
- C. Propane
- D. Ethoxyethane
Explanation
Propan-1-ol can form strong intermolecular hydrogen bonds due to its -OH group. These are much stronger than the dipole-dipole forces in propanal and ethoxyethane, and the weak dispersion forces in propane, giving it the highest boiling point.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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