Question

Answer the following questions based on the given chromatogram:

1. How many different pigments does the black ink consist of? Explain your answer..
2. The pink and the blue spots are quite close to each other. Suggest how the method
might be improved to improve the separation of pigments.​

Answer 1

Answer:

1. When you mix green, red, blue, and yellow ink, each ink that you add absorbs more light. That leaves less light to reflect to your eye. Since the mixture absorbs light of many colors and reflects very little, you end up with black.
2. The process of chromatography separates molecules because of the different solubilities of the molecules in a selected solvent. The solvent carries the dissolved pigments as it moves up the paper. The pigments are carried at different rates because they are not equally soluble.

Explanation:

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Answer 2

Answer:

1. yellow, purple, blue because black colour is made with mixture of different colors