what are immiscible liquids

Immiscible liquids are liquids that do not mix or are not soluble in each other. They will form separate layers when combined. Examples of immiscible liquids include oil and water, petrol and water, and phenylamine and water. The force of attraction between the molecules of the same liquid is greater than the force of attraction between the two liquids, which causes them to be immiscible. When agitated, mixtures of immiscible liquids will boil at a temperature lower than the boiling point of either of the pure liquids. Their combined vapor pressures are bound to reach the external pressure before the vapor pressure of either of the individual components gets there.