SC-895
Chromatography
Lower Sec Science · Secondary 1 · Medium · Chromatography
A food dye is tested using paper chromatography. Two different black ink samples, A and B, are run in the same solvent. Both produce three spots at exactly the same heights on the chromatogram. What does this show about the inks?
- They contain the same dyes.
- Ink A is more concentrated than ink B.
- The spots must be different dyes.
- The solvent did not move at all.
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