Examples of Immiscible Liquids Oil and water - These two liquids do not mix; oil floats on top of water because they have different polarities.Mercury and water - Mercury is a metal and is immiscible with water, forming two separate layers.Benzene and water - Benzene is a nonpolar liquid that does not mix with polar water.Vinegar and oil - Often seen in salad dressings, vinegar and oil separate into two layers due to differences in polarity.Immiscible liquids do not mix or form a homogeneous solution, instead they remain in separate layers when combined.