Basics of Organic Chemistry

Question

Given below are two statements :

Statement I : Retardation factor (R_f) can be measured in meter/centimeter.

Statement II : R_f value of a compound remains constant in all solvents.

Choose the most appropriate answer from the options given below :

Accepted Answer

Option D. Retardation factor (R_f) is the ratio of the distance
moved by the substance from the baseline to the
distance moved by the solvent from the baseline.
So, it is dimensionless. The distance moved by the
substance is due to the adsorption of the substance on
the stationary phase. It does not depend on the
nature of the solvent. But the distance moved by the
solvent will change with the nature of the solvent.
Therefore, R_f will vary with the change in the solvent.

More on Basics of Organic Chemistry

Basics of Organic Chemistry

More on Basics of Organic Chemistry