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Which of the following is not an application of method of separation called centrifugation?

A.
Separation of water from wet clothes in washing machine
B.
Separation of butter from milk
C.
Separation of food items for adulteration
D.
diagnostic tests in laboratories

Solution:

Concept:Mixture:A mixture contains more than one substance or element or compound mixed in any proportion.These mixtures can be separated into pure substances using appropriate methods of separation.Centrifugation:Centrifugation is the process that uses centrifugal force for the separation of two liquids in a mixture.In this process, the denser component of the mixture migrates away from the axis and the lighter component migrates towards the axis.It is a technique based on the principle of sedimentation.It is based on different factors like density, shape, size, and viscosity of the particles of mixture or solution.Examples: extraction of fat from milk, separation of butter from milk. spin-drying of water etc.Explanation:The washing machine works on the principle of centrifugation. It is used to squeeze out water from wet clothes.The separation of butter from milk is separated by the Centrifugation technique. The principle is that the denser particles are forced to the bottom and the lighter particles stay at the top when spun rapidly.Centrifugation is also used in diagnostic laboratories for blood and urine tests.The separation of food items for adulteration is done by chromatography methods or handpicking depending on the two kinds of mixtures.Thus, from the above discussion, it is clear that the separation of food items for adulteration is not an application of the method of separation called centrifugation.Additional Information Filtration:Filtration is the process of the solid unwanted particles from a given liquid or gaseous mixture through the pores of a membrane called a filter.Evaporation:Evaporation is a technique that is used in separating a mixture usually a solution of a solvent and a soluble solid.In this method, the solution is heated until the organic solvent evaporates where it turns into a gas and mostly leaves behind the solid residue.Winnowing:Winnowing is the process to separate heavier and lighter components of a mixture by wind or blowing air.Sieving:Sieving is the process of separating particles of different sizes using a sieve.Chromatography:Chromatography is a physical method of separation that distributes components to separate between two phases i.e, stationary and mobile phases.

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