Which of the following carboxylic acids has lowest boiling point?

Which of the following carboxylic acids has lowest boiling point?
  1. Butyric acid
  2. Propionic acid
  3. Acetic acid
  4. Valeric acid

Solution

Boiling point $\propto$ Molar mass Acetic acid has least molar mass among other, so it has lowest boiling point.

Asked in: MHT CET 2021 (24 Sep Shift 2)

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