3. A child wanted to separate the mixture of dyes constituting a simple of ink. He marked a line and
kept a drop of ink on filter paper and placed the filter paper in a glass containing water as shown in
the figure
The filter paper was removed when the water moved near the top of the filter paper.
a) What would you expect to see, if ink contains three different colored components?
b) Name the technique used by the child.
c) Sugest one more application of this technique.
Glass rod
Paper clip
Strip of liter
Sirip of liter
paper
Spot of in
Una drawn
by pencil
Water
Spot of in
(b)
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Explanation:
(a) All three components on the filter paper with one on another.
(b) The technique used by the child is known as Chromatography which is used for seperation of substances on the basis of Colours.
(c)It is used to separate
Colours in a dye
Pigments from natural colours
Drugs from Blood.
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