Question
Question: Column chromatography involves separation of a mixture over a column of adsorbent (stationary phase)...
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.
The most readily adsorbed component is retained near the top (x).
Solution
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.