Question

Achild wanted to seperate the mixture of dyes constituting a sample of ink. He marked a line by the ink on the ffilter paper and placed the filter paper in a glass containing water. The filter paper was removed when the water moved near the top to the filter paper.a) What would you expect to see if the ink contained three different coloured exponents?b) Name the technique used by the childc) Suggest one more application of this technique.

Answer 1

a) We expect to see that the three different coloured components of ink will be separated and will be at different positions on the filter paper.
b) The technique used is called paper chromatography.
c) This technique is not just used to separate the component of the mixture but it is also used to purify the chemical substances by separating it from impurities.