Question

State the principle of separating two immiscible liquids by separating funnel. Describe an activity with diagram to separate a mixture of water and kerosene oil.

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Answer

Immiscible layers separate out in layers depending on their densities in separating funnel.

Activity to separate kerosene oil from water using a separating funnel:

  • Pour the mixture of kerosene oil and water in separating funnel as shown in figure.
  • Let it stand undisturbed for sometime so that separate layers of oil and water are formed.
  • Open the stopcock of the separating funnel and pour out the lower laver of water carefully.
  • Close the stopcock of the separating funnel as the oil reaches the stopcock.
  • separate a mixture of water and kerosene oil

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