Question

In column chromatography, which component of the mixture remains adsorbed at the top of the column?

Options

• The component with lowest adsorption

• The lightest component

• The most volatile component

• The component with strongest adsorption

Answer 1

The component with strongest adsorption

Explanation: 

The component that is adsorbed most strongly on the adsorbent is held near the top of the column and moves the least.