$1.$ Which law is used to describe the relationship between the partial vapor pressure of a component in a mixture and its mole fraction?

$-$ A$)$ Dalton$$s Law

$-$ B$)$ Raoult$$s Law

$-$ C$)$ Henry$$s Law

$-$ D$)$ Charles$$s Law

$2.$ Dalton$$s Law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of:

$-$ A$)$ All individual gases at $0$C$.$

$-$ B$)$ All individual gases at $1$ atm.

$-$ C$)$ Each individual gas component.

$-$ D$)$ The two most abundant gases.

$3.$ In a binary mixture, if the more volatile component has a relative volatility greater than $1,$ it means:

$-$ A$)$ It is less likely to vaporize than the less volatile component.

$-$ B$)$ It has a higher boiling point than the less volatile component.

$-$ C$)$ It is easier to separate by distillation.

$-$ D$)$ It has a lower vapor pressure than the less volatile component.

$4.$ During partial vaporization, the composition of the vapor phase is:

$-$ A$)$ Identical to the liquid phase.

$-$ B$)$ Richer in the less volatile component.

$-$ C$)$ Richer in the more volatile component.

$-$ D$)$ Completely random.