CHROMATOGRAPHY

Which of the following can be best separated using Chromatography.

• Ink

• Salt

• Water

• Sand

Which of the following must be part of the process of chromatography?

• Ink

• Solvent

• water

• None

The different colours separate because the substances have different_________

• solubilities in the solvent

• Particles

• Abilities

• Potentials

The different components in a dye can also separate during chromatography because the substances______

• are absorbed differently by the chromatography paper.

• Are all the same

• They are usually different colours

• They are not the same

In the diagram below, there are four different colored inks represented by letters

S,G, F and H put on a filter paper along a pencil line. Which ink is made of more than one colour?

• S

• G

• F

• H

You are again provided with an already done chromatography. Which substance is impure?

• H

• S

• G

• T

Why do we use a pencil to draw that line in the diagram

• Because the pencil has no colours in it

• Pencil is smart

• Pencil is light

• Pencil has not form