Consider the chromatogram below.

Consider the chromatogram below.


A piece of chromatogram paper was spotted with colour inks obtained from pens labeled A to F. The diagram above shows the spots after the chromatograph was developed.
(a) Which two pens contained the same pigment?
(b) According to the chromatogram which pigments are present in the inks of the pen number F
(c) Describe how one could get a sample of yellow pigment

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(a) D and E
(b) Green, blue, yellow and red
(c) - Cut out the yellow pigment
- put in organic solvent to dissolve the pigment
- filter and evaporate the filtrate to get the pigment

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maurice.mutuku answered the question on September 10, 2019 at 09:03

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