Which of the following liquid pairs shows a positive deviation from Raoult's law?
Which of the following liquid pairs shows a positive deviation from Raoult's law?
Water - hydrochloric acid
Acetone - chloroform
Water - nitric acid
Benzene - methanol
Solution
Benzene in methanol breaks the $\mathrm{H}$ - bonding of the alcohol making its boiling point decrease \& there by its vapour pressure increases leading two +ve deviation.