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. Methonl acetone
B. Choloroform and acetone
C. Nitric acid and water
D. Phenol and aniline

Answer

A

Explanation

In pure methanol, molecules are hydrogen bonded. On adding acentone, its molecules get in between the host molecules and breake some of the hydrogen bonds between team,
Therefore, the intermolecular attractive forces between the soulte-solvent molecules are weaken than those betweenthe solute-solute and solvent-solvent molecules.
Raout's law where the intermolecular attractive forces between the aolute-solvent molecules are stronger than those between the solute-solute end solvent-solvent molecules.