Arrangement of following compounds based on their boiling points in the increasing order. n -butane, 1-butanol, ethoxyethane and 1-propanol will be

Step-by-step solution

Boiling point increases with increase in molecular mass so, 1-butanol has higher boiling point than -propanol. Unlike alcohols, ethers do not form hydrogen bonds thus, they have lower boiling points than the corresponding alcohols. Due to weak dipole-dipole interactions, the boiling points of lower ethers are only slightly higher than those of the n -alkanes having comparable molecular masses. Thus, the increasing order of boiling points is n -butane < ethoxyethane < 1 -propanol < 1 -butanol.