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Thursday, 21 May 2015

What principle is applied in centrifugation

What principle is applied in centrifugation? Give examples where this
method is applied to separate mixtures. 

Answer: Centrifugation works on the principle that that the denser particles are forced to the bottom and the lighter particles stay at the top when spun rapidly. 

Examples are: 

1. Separating cream from milk (cream comes as top layer) 

2. Used in diagnostic laboratories for blood and urine

3. Used in washing machines to squeeze out water from wet clothes. 

4. Used in preparing lactic cultures to prepare cheese (paneer) from milk in dairies.

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