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2 April, 11:04

You are a forensic scientist working for a police department. One piece of evidence from your current case is a letter written in a strange ink. You must separate the pigments in the ink to determine what it is made from. What procedure should you use?

A. Distillation

B. Chromatography

C. Evaporation

D. Filtering

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  1. 2 April, 11:16
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    Answer: b. Chromatography

    Explanation:

    Chromatography procedure will be used to separate the pigments in the ink.

    To carry out this procedure, a small ink-dot is placed at the end of a filter paper. This ink-dotted end of the filter paper is then placed in a solvent.

    As the solvent moves up the filter paper, it dissolves the ink mixture and spreads its component pigment across the paper.
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