Multiple choice Which of the following mixtures will show negative deviation from Raoult’s law? Acetone and formaldehyde Acetone and ethyl alcohol Acetaldehyde and formaldehyde Methane and acetaldehyde Methane and ethyl alcohol Reveal answer Fill a bubble to check yourself B Correct answer Explanation Correct answer. As bonding between two components (acetone and ethyl alcohol) is more than individuals due to H-bonding, this mixture will show negative deviation from Raoult’s law.