Question

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.

NCERT Class 9th Science Ch 2 Is Matter Around Us Pure

Answer 1

The answers are as follows:

(a)Evaporation

(b)Sublimation

(c)Filteration OR Centrifugation OR Decantation

(d)Chromatography

(e)Centrifugation

(f)By separating funnel

(g)Filtration

(h)Magnetic Separation

(i)Winnowing

(j)Centrifugation

Answer 2

The answers are as follows--------> (a) Evaporation............... (b) Sublimation (c) Filtration.......... (d) Chromatography.............. (e) Centrifugation............. (f) Separating funnel............ (g) Filtration.............. (h) Magnetic Seperation............ (i) Sieving............(j) Sedimentation.....