NCERT Solution
Class 11
Chemistry
Organic Chemistry Some Basic Principles and Techniques
explain the principle of paper chromatography

Question:
Explain the principle of paper chromatography.

Answer:

In paper chromatography, chromatography paper is used. This paper contains water trapped inside it, which acts as the stationary phase. On the base of this paper, the solution of the mixture is spotted. The paper strip is then suspended in a suitable solvent, which acts as the mobile phase. This solvent rises the chromatography paper by capillary action and in the procedure, it flows over the spot. The components are selectively retained on the paper (according to their differing partition in these two phases). The spots of different components travel with mobile phase to different heights. The paper so obtained (shown in the given figure) is known as a chromatogram.

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Question:
Explain the principle of paper chromatography.

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Question:
Explain the principle of paper chromatography.