What would you expect to see, if the ink contains three different coloured components?

A student wanted to separate the mixture of dyes constituting a sample of ink. He marked a line by the ink on the filter paper and placed the filter paper in a glass jar containing water as shown in the figure. The filter paper was removed when the water reached near the top of the filter paper.
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  1. What would you expect to see, if the ink contains three different coloured components?
  2. Name the technique used by the student.
  3. Suggest one more medical application of this technique.
  1. If the ink contains three different coloured components, then they will be separated by paper chromatography and three different coloured spots will be obtained on the strip at different heights.
  2. Chromatography (paper chromatography) is the technique used by the student.
  3. The chromatography method is also employed to separate drugs from the blood.