Considering the formation, breaking and stregth of hydrogen bond, pradict which of the following mixture will show a positive devition from Raoult's law?

Options

A. Methanol and acetone
B. Chloroform and acetone
C. Nitric acid and water
D. Phenol and aniline

Answer

A

Explanation

Mixture of methanol and acetone shows positive deviation from Raoult's law. In pure methanol, molecules are hydrogen bonded. On adding acetone, its molecules get in between the host molecules and break some of the hydrogen bonds between them.