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

Which characteristic leads to substances moving differently on chromatography paper?

Which of these is chromatography often used to detect?

Why must the baseline be drawn in pencil rather than ink?

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

Which one of the following would enhance the effectiveness of chromatography?

When is chromatography complete?

Which option correctly describes chromatography’s working process?

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

Ink separation performed by chromatography relies primarily on which factor?

What is meant by the Rf value in chromatography?

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