Chromatography Vocabulary Quiz

What is the purpose of paper chromatography?

• To make paper products more colorful

• To measure the weight of a substance

• To separate and analyze different components of a mixture.

• To create a barrier between different substances

Explain the process of separating plant pigments using chromatography.

• The process involves boiling the plant extract in water

• The process involves mixing the plant extract with vinegar

• The process involves exposing the plant extract to direct sunlight

• The process involves placing a small dot of the plant extract on a strip of chromatography paper and then immersing the paper in a solvent.

How can you analyze the components of a pen ink sample using chromatography?

• By mixing the ink sample with water and observing the reaction

• By boiling the ink sample and observing the color change

• By using a magnet to separate the components of the ink sample

• By allowing the ink to move through a chromatography paper.

Define chromatogram and its significance in chromatography.

• A chromatogram is a type of microscope used in chromatography.

• A chromatogram is a type of chemical used to separate compounds in chromatography.

• A chromatogram is a type of data analysis software used in chromatography.

• A chromatogram is a visual representation of the results of a chromatography separation.

What is the solvent front in chromatography and why is it important?

• The solvent front is the point where the solvent stops moving in chromatography, and it is important for determining the Rf value.

• The solvent front is the area at the bottom of the chromatography paper where the sample is applied, and it is important for determining the Rf value.

• The solvent front is the furthest point reached by the solvent as it moves up the chromatography paper or column, and it is important for determining the Rf value.

• The solvent front is the name of the chemical used in chromatography, and it is important for separating the substances.

What are the key components required for conducting paper chromatography?

• glass, ink, paper, tube

• paper, solvent, sample, container

• plastic, oil, sample, beaker

• pen, water, paper, jar

Explain the concept of Rf value in chromatography.

• Rf value is a measure of the temperature in chromatography

• Rf value is a measure of the distance a compound travels compared to the distance the solvent travels on the chromatography paper or plate.

• Rf value is a measure of the volume of the compound in chromatography

• Rf value is a measure of the time taken for the compound to separate in chromatography