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.
- What would you expect to see, if the ink contains three different coloured components?
- Name the technique used by the student.
- Suggest one more medical application of this technique.