Question:
At $35^{\circ} \mathrm{C}$, the vapour pressure of $\mathrm{CS}_{2}$ is $512 \mathrm{~mm} \mathrm{Hg}$ and that of acetone is $344 \mathrm{~mm} \mathrm{Hg}$. A solution of $\mathrm{CS}_{2}$ in acetone has a total vapour pressure of $600 \mathrm{~mm} \mathrm{Hg}$. The false statement amongst the following is:
Correct Option: , 2
Solution:
Mixture of carbon disulphide and acetone will show positive deviation from Raoult's Law.
The dipolar interaction between solute $\left(C S_{2}\right)$ solvent (acetone) molecules in solution are weaker. So the vapour pressure of solution will be greater than the individual vapoure pressure of pure components.