$A$ mixture of phenol and aniline shows negative deviation from Raoult's law. This is due to the formation of

Two liquids $x$ and $y$ form an ideal solution. At $300 \ K$,the vapor pressure of a solution containing $1 \ mol$ of $x$ and $3 \ mol$ of $y$ is $550 \ mm \ Hg$. At the same temperature,if $1 \ mol$ of $y$ is added to the solution,the vapor pressure increases by $10 \ mm \ Hg$. The vapor pressures of pure $x$ and $y$ are respectively:

Two liquids $X$ and $Y$ form an ideal solution. At $300 \ K,$ vapour pressure of the solution containing $1 \ mol$ of $X$ and $3 \ mol$ of $Y$ is $550 \ mm \ Hg.$ At the same temperature,if $1 \ mol$ of $Y$ is further added to this solution,vapour pressure of the solution increases by $10 \ mm \ Hg.$ Vapour pressure (in $mm \ Hg$) of $X$ and $Y$ in their pure states will be,respectively:

Which property is not found in an ideal solution?

$A$ liquid mixture is an ideal solution, if
$(I)$ It obeys ideal gas equation
$(II)$ It obeys Raoult's law at all concentrations
$(III)$ Solute - solute, solute - solvent and solvent - solvent interactions are similar

Which condition is not satisfied by an ideal solution?