Chromatography

Ink can be separated by a method of -----------------------------------------------

• distillation

• filtration

• chromatography

• sedimentation

On the chromatogram given -------------- is mixture.

• red
• orange
• green
• black

A substance is soluble if it can be dissolved.

In paper chromatography, the most soluble solute _____________________ .

• does not move from the start point

• stays closest to the start point

• travels furthest away from the start point

• can be found in the middle of the chromatogram

What is chromatography?

• A way to see pretty colors

• A laboratory technique used to separate a mixture.

• A form of distillation

Two or more substances that are mixed together but not chemically combined create a...

• solvent

• compound

• mixture

Why is Chromatography useful?

• It can be used as medicine.
• It can be used for finding clues at a crime scene
• It can be used to make bombs.
• It can reduce the lack of food and water.

If a substance is not soluble in the solvent, what happens to the spot placed on the start line?

• a) Dot moves to the top of the paper

• b) Dot does not move at all

• c) Dot moves to the left or right

• d) Dot moves down to the bottom of the paper

In paper chromatography, the LEAST soluble solute ____.

• does not move from the start point

• stays closest to the start point

• travels furthest away from the start point

• can be found in the middle of the chromatogram

In chromatography, if a solute does not separate and remains on the start line ....

• the solute is insoluble in the solvent
• the solute is soluble in the solvent
• the solvent is insoluble in the solute
• the solvent is soluble in the solute

Which two were the same mixture of dyes?

• 1 and 5

• 2 and 6

• 3 and 4

• 4 and 6