The vapour pressure of mixture (= 600 mm Hg) is greater than the individual vapour pressure of its constituents (Vapour pressure of $\mathrm{C}{\mathrm{S}}_2=$ 512 mm Hg, acetone = 344 mm Hg).
Hence, the solution formed shows positive deviation from Raoult's law.
$\left(1\right)$ ${\mathrm{\Delta }}_{\mathrm{s}\mathrm{o}\mathrm{l}.}\mathrm{H}>0,$
$\left(2\right)$ Raoult's law is not obeyed
$\left(3\right)$ ${\mathrm{\Delta }}_{\mathrm{s}\mathrm{o}\mathrm{l}.}$ Volume > 0
$\left(4\right)$ $\mathrm{C}{\mathrm{S}}_2$ and Acetone are less attracted to each other than to themselves.