Which law of motion gives the measure of force?

Which separation techniques will you apply for the separation of the following?

Sodium chloride from its solution in water.

Which separation techniques will you apply for the separation of the following?

Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.

Which separation techniques will you apply for the separation of the following?

Small pieces of metal in the engine oil of a car.

Which separation techniques will you apply for the separation of the following?

Different pigments from an extract of flower petals.

Which separation techniques will you apply for the separation of the following?

Butter from curd.