Alcohols have **higher boiling points** than ethers of similar molecular weight because:
AAlcohols form intermolecular hydrogen bonds (O–H···O)
BAlcohols are less polar
CEthers are gases
DEthers can't dissolve
Answer & Solution
Correct answer: A. Alcohols form intermolecular hydrogen bonds (O–H···O)
Alcohols H-bond strongly through OH groups. Ethers (R-O-R) lack OH, only weak dipole-dipole/dispersion forces. Example: ethanol (b.p. 78 °C) vs dimethyl ether (b.p. −24 °C) — both C₂H₆O!
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