Question:
Given below are two statements:
Statement-I : Retardation factor $\left(\mathrm{R}_{\mathrm{f}}\right)$ can be measured in meter/centimeter.
Statement-II : $\mathrm{R}_{\mathrm{f}}$ value of a compound remains constant in all solvents.
Choose the most appropriate answer from the options given below:
Correct Option: , 3
Solution:
$\mathrm{R}_{\mathrm{f}}=$ retardation factor
Distance travelled by the substance from
$\mathrm{R}_{\mathrm{f}}=\frac{\text { reference line }(\mathrm{c} \cdot \mathrm{m})}{\text { Dis tance travelled by the solvent from reference line }(\mathrm{c} \cdot \mathrm{m})}$
Note $: R_{f}$ value of different compounds are different.