$1.$ What does a point inside a ternary phase diagram represent?

$-$ A$.$ A pure component

$-$ B$.$ A binary mixture

$-$ C$.$ A ternary mixture

$-$ D$.$ An immiscible mixture

$2.$ In a ternary phase diagram, what does a tie$-$line connect?

$-$ A$.$ Two immiscible liquids

$-$ B$.$ The boiling and freezing points

$-$ C$.$ Two phases in equilibrium

$-$ D$.$ The critical points of components

$8.$ Which extractor is best for immiscible solvents?

$-$ A$.$ Rotary evaporator

$-$ B$.$ Centrifugal extractor

$-$ C$.$ Soxhlet extractor

$-$ D$.$ Batch reactor

$17.$ The efficiency of a solvent in extraction is not significantly affected by:

$-$ A$.$ Its density

$-$ B$.$ Its viscosity

$-$ C$.$ Its color

$-$ D$.$ Its polarity