$3.$A binary mixture shows ideal behavior when:

A$)$ It follows Raoults Law across all compositions.

B$)$ It deviates significantly from Raoults Law.

C$)$ Only one component follows Raoults Law.

D$)$ Neither component follows Raoults Law.

For a given separation, increasing the number of stages in a distillation column will:

A$)$ Increase the purity of the distillate.

B$)$ Decrease the purity of the distillate.

C$)$ Have no effect on the distillate purity.

D$)$ Decrease the column efficiency.

Daltons Law applies to:

A$)$ Liquid mixtures only.

B$)$ Gas mixtures only.

C$)$ Both liquid and gas mixtures.

D$)$ Solid mixtures.

The minimum reflux ratio is determined by:

A$)$ The desired separation efficiency.

B$)$ The feed composition.

C$)$ The relative volatility of the components.

D$)$ The operating pressure of the column.