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Question

Which separation techniques will you apply for the separation of the following?

(1) Sodium chloride from its solution in water.

(2) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.

(3) Small pieces of metal in the engine oil of a car.

(4) Different pigments from an extract of flower petals.

(5) Butter from curd.

(6) Oil from water.

(7) Tea leaves from tea.

(8) Iron pins from sand.

(9) Wheat grains from husk.

(10) Fine mud particles suspended in water.

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Solution

Separation of Components of a Mixture

  • A variety of separation processes are used to separate a mixture of components.
  • To isolate a mixture of components, a variety of separation processes are used.
  • A separation process is a method for separating two or more components from a mixture or solution of chemical substances.
  • Examples: Filtration, evaporation and chromatography.

Separation techniques used for the separation

(1) The sodium chloride will be separated from its solution in water using the evaporation process.

(2) Ammonium chloride may be produced as sublime from a combination of sodium chloride and ammonium chloride using the sublimation technique.

(3) Small bits of metal in a car's engine oil can be separated using a suitable filter during the filtration process.

(4) Different pigments from a flower petal extract were separated using chromatography.

(5) The centrifugation process can be used to separate butter from curd.

(6) The separating funnel technique may be used to separate the oil and water combination.

(7) The filtering process can be used to separate tea leaves from tea.

(8) A magnetic separation method may be used to extract iron pins from sand.

(9) The Winnowing technique can be used to separate wheat grains from the husk.

(10) The sedimentation method may be used to separate fine mud particles suspended in water, followed by filtration.


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