Arrange in order of increasing boiling points....butane,butanoic acid, and methyl propane

Answer 1

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Answer 2

Organic Chemistry trend question: branching of hydrocarbons increase boiling point. Hydrogen bonding also increases boiling point, more so than branching.

Butanoic acid is able to form H-bonds with itself. Methyl propane is branched.

Butanoic acid > Methyl propane >Butane