Question

What type of mixture are separated by centrifugation?
(A) Separating chalk powder from water
(B) Removing fat from milk to produce skimmed milk
(C) Separating water from textiles
(D) All of these

Answer 1

Hint:In the given question firstly we have to define the facts regarding the centrifugation and the facts about it along with the basic definition. The process which involves the use of the centrifugal force for the sedimentation of heterogeneous mixtures with a machine known as a centrifuge.

Complete answer:The process of centrifugation can be considered as the process which involves the use of the centrifugal force for the sedimentation of heterogeneous mixtures with a machine known as a centrifuge. It is widely used in industry and in laboratory settings. This is the process which is used to separate two immiscible liquids.
Now getting to the uses we can't say that some of them are:
-The Separation of the chalk powder from the water.
-Removal of the fat from milk to produce skimmed milk.
-Separation of the water from textiles
-Separation of the particles from an air-flow by the use of cyclonic separation.
-Separation of the urine components and blood components in forensic and research laboratories.
-Removal of the water from lettuce after washing it in a salad spinner.
-The process of the clarification and stabilization of wine.
-Separation of the water particles from clothes while spin-drying in washing machines.
-Therefore by the given facts we get that all the options are the correct options.

So the correct option would be option (D), all of these.

Note:The rate of centrifugation is specified by the angular velocity usually expressed as revolutions per minute (RPM), or acceleration expressed as g. The conversion factor between RPM and g depends on the radius of the centrifuge rotor. The particles' settling velocity in centrifugation is a function of their size and shape, centrifugal acceleration, the volume fraction of solids present, the density difference between the particle and the liquid, and the viscosity.