Answer:
1. Centrifugation is a technique used for the separation of particles from a solution according to their size, shape, density, viscosity of the medium and rotor speed.
2.Rectification is the process of turning an alternating current waveform into a direct current waveform,
3.Sieving is a simple technique for separating particles of different sizes.
4.involves throwing the mixture into the air so that the wind blows away the lighter chaff, while the heavier grains fall back down for recovery.
5. removing the liquid layer at the top from the layer of solid or liquid below.
