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) Find mud particles suspended in water.​

Answer 1

Answer:1) Evaporation

2)Sublimation

3)Separation

4)Chemification

5)Centrifugation

6)By using stop clock

7)filteration

8)Using magnet

9)Winnowing

10)Settling

Explanation:

Answer 2

a. Evaporation

Sodium chloride is nothing but table salt. Salt in water can be separated by evaporating the water under sun.

b. Sublimation

Ammonium chloride on heating will form fumes that can be later cooled to isolate them from a mixture of ammonium chloride and sodium chloride.

c. Filtration

Filters can be used with applicable pore size to isolate metal pieces

d. Chromatography

Pigments are separated using paper chromatography using solvents as carriers.

e. Centrifugation

Butter can be separated from curd by Centrifuging the mixture. The curd being denser settles at the bottom and butter (less denser) is the supernatant

f. Separation funnel

Since oil and water are immiscible liquids they can be separated using separation funnel. water being denser than oil stays at the bottom which is collected via a flask.

g. Filteration

Tea leaves are pretty large and can be easily separated using filter

h. Magnetic separation/Hand picking

Iron pins can be separated using magnets.

i. Winnowing

Winnowing is done using a winnower to separate the light weight husk.

j. Centrifugation/Filteration/Sedimentation

Quick and efficient method for separating mud particles from water is centrifugation