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

Which option correctly describes chromatography’s working process?

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

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

Ink separation performed by chromatography relies primarily on which factor?

What is meant by the Rf value in chromatography?

Paper chromatography separates substances mainly based on what property?

What does a higher Rf value indicate about a substance?

What precaution would avoid contamination during chromatography?

Which characteristic leads to substances moving differently on chromatography paper?

In chromatography, water often acts as what?

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