Column chromatography involves separation of a mixture over…

Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) General Single Correct MCQ

Published on: August 13, 2026

Column chromatography involves separation of a mixture over a column of adsorbent (stationary phase) packed in a glass tube. Depending upon the degree of adsorption complete separation takes place in the given column, three coloured bands x, y, z are formed identify the correct statement.

x, y and z are adsorbed to the same extent

The most readily adsorbed component is retained near the top (x).

The most r5eadily adsorbed component comes down (z)

x, y, z layers are formed according to the wavelengths of the colours not on the basis of adsorption.

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The correct answer is:

: Depending upon the degree to which the components are adsorbed the bands are formed. The most readily adsorbed substances are retained near the top and others come down to various distances in the column.

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