If the polarity of the eluent solvent is increased will the

If the polarity of the eluent solvent is increased, will the R_f values for compounds on the TLC plate increase or decrease? Please explain your choice.

I know it\'ll increase, but I don\'t quite know why.

Solution

Rf value of the compounds depends on their relative polarity.

Different polar compounds can show different Rf values.

As the polarity of the eluent solvent increases; It will increases the solubility of the compound in it and in result

the compound moves to greater distance in TLC, which will show increasing the Rf value of the compound.