Question

Which of the following compounds possesses the highest boiling point?

• A. Acetic acid
• B. Ethanol
• C. Chloroform
• D. Methane

Answer 1

Answer:

A. Acetic acid

• Acetic acid has the highest temperature of liquefaction and boiling.

• Acetic acid (CH₃COOH), also known as ethanoic acid, is a carboxylic acid that exhibits relatively high temperatures for both liquefaction (melting point) and boiling point compared to other small organic molecules.

• Liquefaction (Melting Point):

• The melting point of pure (anhydrous or glacial) acetic acid is around 16-17 °C (289-290 K).