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Question

Which separation techniques will you apply for the separation of the following?
a) Sodium chloride from its solution in water.
b) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
c) Butter from curd.
d) Oil from water.
e) Wheat grains from husk.

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Solution

a) Sodium chloride from its solution in water.
Answer- Sodium chloride can be separated by evaporation from its solution in water.

b) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
Answer- From a mixture containing sodium chloride and ammonium chloride, ammonium chloride can be separated by sublimation.

c) Butter from curd.
Answer- Butter from curd can be separated by centrifugation.

d) Oil from water.
Answer- As oil and water form separate layers, they are separated by using a separating funnel.

e) Wheat grains from husk.
Answer- Wheat grains can be separated from husk by the process of winnowing.

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