Question

State the principle for the separation of immiscible liquids.

Answer 1

Immiscible liquids: The liquids which are not capable of mixing with each other to form a homogenous mixture are called immiscible liquids.

Principle for the separation of immiscible liquids

• The difference in the densities of the immiscible liquids is the principle for their separation.
• The liquids separate out into layers depending on their densities in the separating funnel.

Example: Separation of a mixture of Kerosene oil and water

• Pour the mixture of kerosene oil and water into a separating funnel.
• Shake it and let it stand undisturbed for some time so that separate layers of oil and water are formed.
• Open the stopcock of the separating funnel and pour out the lower layer of water carefully.
• Close the stopcock of the separating funnel as the oil reaches the stop-cock.