Which separation techniques will you apply separation of the following?
a.) Sodium chloride from its solution in water.
b.) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
c.) Mixture of oil and water
d.) Fine mud particles suspended in water.

Hint: Generally, Separation techniques are those techniques that can be used to separate two different states of matter, you know like liquid and solid. On a very general basis such separation techniques include filtration or evaporation.

Complete step by step answer:
As we can understand by the name itself, separation techniques are nothing but which are used to separate mixtures into its constituent elements or compounds.
Let us see different types of separation techniques:
Mixtures can be separated using a variety of techniques.
Chromatography involves solvent separation on a solid medium.
Distillation takes advantage of differences in boiling points.
Evaporation removes a liquid from a solution to leave a solid material.
Filtration separates solids of different sizes.

The following separations techniques are used to separate are -
1. Sodium chloride from its solution in water is done by Evaporation method.
2. Ammonium chloride from a mixture containing sodium chloride and ammonium chloride is done by Sublimation.
3. Mixture of oil and water is done by separating funnels.
4. Fine mud particles suspended in water are done by decantation and filtration.

Note: Remember that separating techniques plays a vital role, just by separating the constituents of the mixtures; we are able to find out the properties of the known/unknown substances from mixtures and possibly use them for the production of useful substances such as medicines. Therefore, it plays a vital role in our daily life.