Basics of Organic Chemistry

Question

A chromatography column, packed with silica gel as stationary phase, was used to separate a
mixture of compounds consisting of (A) benzanilide (B) aniline and (C) acetophenone. When the
column is eluted with a mixture of solvents, hexane : ethylacelate (20:80), the sequence of
obtained compounds is :

Accepted Answer

Option C. In column chromatography, we separate different parts of a mixture by washing it with solvents. The part of the mixture that gets most strongly attached to the moving solvent (or mobile phase) moves down the column quicker and comes out first. This is marked by a high Rf value. Other parts of the mixture follow in the order of decreasing Rf values.

More on Basics of Organic Chemistry

Basics of Organic Chemistry

More on Basics of Organic Chemistry