Chemistry 0620 · IGCSE · Chromatography

Chromatography — practice question

The chromatogram produced from four substances, J, K, L and M, is shown. Which statement about M is correct?

  • AIt is a mixture of J and K only.
  • BIt is a pure substance.
  • CIt is a mixture of J, K and L.
  • DIt is a mixture of J, K and an unknown substance.

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