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In which of the following type of paper, chromatography does the mobile phase move horizontally over a circular sheet of paper?

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In which of the following type of paper, chromatography does the mobile phase move horizontally over a circular sheet of paper?

(a) Ascending paper chromatography

(b) Descending paper chromatography

(c) Radial paper chromatography

(d) Ascending – descending chromatography

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The above asked question is from Introduction to Chromatography in division Chromatography of Analytical Instrumentation

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Right choice is (c) Radial paper chromatography

Easiest explanation: In Radial paper chromatography, the mobile phase moves horizontally over a circular sheet of paper. Separation takes place based on partition.

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