CH-1368
Chromatography and Rf values
Chemistry · Secondary 4 · Easy · Chromatography and Rf values
A sample of liquid Z is analysed by paper chromatography using water as the solvent. Three spots appear for Z at the same heights as pure dyes A, B and C. What can be concluded about Z?
- Z is a pure substance.
- Z contains only dye A.
- Z contains dyes A, B and C.
- All dyes in Z are insoluble in water.
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