Question

Thin-layer chromatography is a method that can be used to separate molecules by their polarity. A mixture of molecules in a nonpolar liquid (the mobile phase) is added to the bottom of a piece of adsorbent material (the stationary phase) and allowed to migrate up the material. More-polar molecules interact more strongly with:__________

Answer 1

The correct answer is silica gel.

Step-by-step explanation:

First of all, the name of ''thin-layer chromatography'' is given to a specific technique used to separate non-volatile mixture.

Secondly, the silica gel is an amorphous and porous form of silicon dioxide and is usually used in the chromatography method as a thin layer of adsorbent material and receives the name of stationary phase in the method.

Finally, in a certain example where two compounds that differ from each other regarding polarity, the more polar compound has a stronger interaction with the silica gel.