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JAMB Chemistry 2002 Question 4

Question 4

Separation of Mixtures

The chromatographic separation of ink is based on the ability of the components to

  1. A.react with the solvent
  2. B.react with each other
  3. C.dissolve in each other in the column
  4. D.move at different speeds in the column.
Show the answer and explanation

Answer: D (move at different speeds in the column.)

Explanation

Each dye in ink is carried by the solvent at its own speed, depending on how well it dissolves and how strongly it sticks to the paper or column, so the dyes separate.