SC-735
Chromatography
Lower Sec Science · Secondary 1 · Hard · Chromatography
A sample of ink is spotted on filter paper and placed in a beaker with water as the solvent. After some time, three coloured spots appear at different heights above the starting line. Which statement about this chromatography result is correct?
- Each coloured spot represents a different pure dye in the ink
- The highest spot must be the most concentrated dye
- The number of spots depends only on how much ink was used
- The lowest spot shows the dye that is most soluble in water
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