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Which of the following types of chromatography involves the separation of substances in a mixture over a 0.2mm thick layer of an adsorbent?

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Which of the following types of chromatography involves the separation of substances in a mixture over a 0.2mm thick layer of an adsorbent?

(a) Gas liquid

(b) Column

(c) Thin layer

(d) Paper

I had been asked this question in homework.

The query is from Introduction to Chromatography in section Chromatography of Analytical Instrumentation

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The correct choice is (c) Thin layer

Easy explanation: Thin layer chromatography involves the separation of substances of a mixture over a 0.2mm thick layer (thin layer) of an adsorbent. The adsorbent can be silica gel or alumina.

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