How will you separate a mixture of mercury, oil and water?


To separate a mixture of mercury, oil and water by using a separating funnel.

  • The three substances have different densities and boiling points. Mercury, being the heaviest among the three, comes out first via stop-cock.
  • The density of water is lower than mercury but higher than oil. So, it forms the middle layer.
  • Oil has the lowest density among the three, and therefore it forms the upper layer. These liquids are then separated from the funnel layer by layer.

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Updated on: 10-Oct-2022

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