Paper Chromatography Quiz

What is the purpose of paper chromatography?

• To identify different substances in a mixture

• To calculate the volume of solvent used

• To create colorful patterns on paper

• To measure the length of paper

What is the stationary phase in paper chromatography?

• A substance that the molecules can't move in

• A substance that the molecules can move in

• A type of gas

• A thick liquid

What is the mobile phase in paper chromatography?

• A thick liquid

• A solid that the molecules can't move in

• A liquid or gas that the molecules can move in

• A type of solid

What is the purpose of drawing a baseline on the filter paper?

• To mark the starting point for the sample of ink

• To create a colorful design

• To measure the length of the paper

• To calculate the volume of solvent used

What is the purpose of placing a lid on top of the beaker during paper chromatography?

• To increase the temperature of the solvent

• To speed up the process

• To mix the solvent and ink

• To prevent the solvent from evaporating

What is the pattern of spots left on the filter paper called?

• Solvent

• Baseline

• Chromatogram

• Mobile phase

What does the rf value represent in paper chromatography?

• The ratio of the distance travelled by the substance to the distance travelled by the solvent

• The temperature of the solvent

• The color of the solvent

• The weight of the paper

What happens if a chemical is not soluble in the solvent during paper chromatography?

• It evaporates from the paper

• It dissolves in the solvent

• It moves up the paper quickly

• It stays on the baseline

What determines how fast each chemical moves up the paper in paper chromatography?

• The type of pencil used

• The properties of the substance

• The color of the ink

• The size of the filter paper

What would happen if the same paper chromatography experiment is done with a different solvent?

• The chromatogram might look different and the rf value would be different

• The chromatogram would look the same and the rf value would be the same

• The experiment would fail

• The paper would dissolve in the solvent