Question
What is centrifugation. How it is done?
Solution
Centrifugation is the process of separating suspended particles from a liquid like colloids by churning the liquid at a high speed. The principle is that denser particles are forced to the bottom and lighter stay at the top when spun rapidly.
The mixture is taken in a closed bottle and rotated at a high speed. The heavy particles settle at the bottom while light particles remain behind. For example, to separate cream from milk, milk is churned for 2-3 minutes. Cream collects at the centre and being lighter than milk floats at the top of the mixture.
