Which of the following solutions behaves nearly as an ideal solution?

When $25 \ mL$ of acetone is mixed with $25 \ mL$ of ethanol,the volume of the resulting solution will be ...........

$A$ mixture of methanol $(MeOH)$ and ethanol $(EtOH)$ forms an ideal solution. If the partial pressures of methanol and ethanol are $2.619 \ kPa$ and $4.556 \ kPa$ respectively,what will be the mole fractions of the components in the vapor phase?

$A$ mixture of ethanol and acetone shows positive deviation from Raoult's law because:

When two liquids $A$ and $B$ are mixed,their boiling point becomes greater than both of them. What is the nature of this solution?

Liquids $A$ and $B$ form an ideal solution in the entire composition range. At $350 \ K$,the vapour pressures of pure $A$ and pure $B$ are $7 \times 10^3 \ Pa$ and $12 \times 10^3 \ Pa$,respectively. The composition of the vapour in equilibrium with a solution containing $40 \ \text{mole percent}$ of $A$ at this temperature is