(a) The different pigments from an extract of flower petals: Chromatography can be applied for separation of the components from a mixture.

(b) Butter from curd: Centrifugation can be applied for the separation of butter from curd. The principle is that denser particles are forced to the bottom and lighter particles stay at the top.

(c) Oil from water: For separation of oil from water, the mixture is poured in a separating funnel and is let to stand undisturbed, the water and oils separate into layers the stop clock of the funnel is opened and water is poured out from the lower layer separating the two.

Since oil and water differ in their densities they separate based on it.

(d) Tea leaves from tea: Filtration is the process used to separate tea leaves from tea.

(e) Iron pins from sand: Magnetic property of iron is used to separate iron pins from sand. Irons pins get attracted to the magnet and as such get separated from the sand.

(f) Wheat grains from husk: Wheat grains can be separated from husk by the process of winnowing.

(g) Fine mud particles floating in water: Centrifugation can be applied for separation of mud particles from water.