Question

How can we separate a mixture of two immiscible liquid? Describe the process.

Answer 1

Separating funnel:-

• In the method of using the separating funnel, the two immiscible liquids are separated, using the concept of unequal densities of particles in a mixture.
• The formation of two layers can be observed when the two liquids are taken in the funnel.
• The liquid which is more dense sinks to the bottom and the other liquid which is less dense stays on top.
• To collect the denser liquids a conical flask is taken at the bottom of the funnel.

Example: Separation of oil and water

• Oil, and water, are two immiscible liquids that can be separated by using a separating funnel.
• The mixture formed by oil and water forms two separate layers as they are completely insoluble with each other.
• Oil forms the upper layer as its density is lower than water, while water forms lower.
• Oil and water are kept in the separating funnel for resting, when the two layers become stable by using a separating funnel they are filtered one by one.
• The liquid which is denser (water) will sink into the flask below, and oil will remain in the funnel.

Therefore, two immiscible liquids, oil, and water can be separated with the help of a separating funnel.