1.9 Separation Techniques - Chromatography (GCSE Chemistry)

The following is a GCSE Chemistry test covering '1.9 Separation Techniques - Chromatography'

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Question 1

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Ink separation performed by chromatography relies primarily on which factor?

What term is used to describe the solid phase, often paper, used in chromatography?

In chromatography, what term describes the solvent used to move the components?

What does a higher Rf value indicate about a substance?

Which of these is chromatography often used to detect?

If two substances have the same Rf values in chromatography, what does that likely mean?

Paper chromatography separates substances mainly based on what property?

Which option correctly describes chromatography’s working process?

What is the main purpose of chromatography?

In chromatography, water often acts as what?

Why should the level of solvent be below the spot of sample initially?

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