Question

In the experiment that we do for separating dyes in black ink using chromatography, which component of colour rises faster on the filter paper?

• A. Coloured component that is comparatively less soluble in water
• B. Coloured component that is more soluble in water
• C. The one which is lighter in weight
• D. The one that has less affinity for water

Answer 1

The correct option is B Coloured component that is more soluble in water

The principle of chromatography is based on the fact that the two substances are dissolved in the same solvent but their solubilities can be different.

According to the principle of chromatography, the coloured component that is more soluble in the water rises faster and in this way, colours get separated.

Since the ink is a mixture of two or more colours so the more soluble colour rises faster and gets separated.

Hence, the correct option is $B$.