1.
Which separation techniques will you apply for the 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)
Small pieces of metal in the engine oil of a car.
(d) Different pigments from an extract of flower petals.
(e) Butter from curd.
(f) Oil from water.
(g) Tea leaves from tea.
(h) Iron pins from sand.
(i) Wheat grains from husk.
(j) Fine mud particles suspended in water.
Answers
⋆Answers⋆
(a) Sodium chloride can be separated from its solution in water by the process of evaporation , when we evaporate the sodium chloride solution sodium chloride crystals are left behind.
(b)Ammonium chloride can be separated from a mixture containing sodium chloride and ammonium chloride by the process of sublimation.
(c)Small pieces of metal in the engine oil of a car can be separated out by the process of filtration.
(d) Different pigments from an extract of flower petals can be separated by the process of chromatography.
(e) Butter from curd can be separated out by the process of centrifugation .
(f) Oil can be separated out from water by the process of separating funnel.
(g) Tea leaves from tea can be separated out by the process of filtration.
(h) Iron pins can be separated from sand by the magnetic separation.
(i) Wheat grains from husk can be separated out the process of winnowing , or sieving followed by handpicking.
(j) Fine mud particles suspended in water can be separated by the process of sedimentation followed by decantation process .