Two compounds I and II are eluted by column chromatography (adsorption of I II). Which one of following is a correct statement ?

Question

Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of following is a correct statement ? (A) I moves faster and has higher Rf value than II (B) II moves faster and has higher Rf value than I (C) I moves slower and has higher Rf value than II (D) II moves slower and has higher Rf value than I

Tardigrade Admin · Accepted Answer

The Rr value is the distance travelled by the substance divided by the distance travelled by the solvent front. As I adsorbs more than II, therefore, II will move faster and will have higher Rf than 1 .

Q. Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of following is a correct statement ?

I moves faster and has higher $R_{f}$ value than $II$

II moves faster and has higher $R_{f}$ value than $I$

I moves slower and has higher $R_{f}$ value than $II$

II moves slower and has higher $R_{f}$ value than $I$

The $R_{r}$ value is the distance travelled by the substance divided by the distance travelled by the solvent front. As $I$ adsorbs more than II, therefore, II will move faster and will have higher $R_{f}$ than 1 .

Q. Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of following is a correct statement ?

I moves faster and has higher Rf​ value than II

II moves faster and has higher Rf​ value than I

I moves slower and has higher Rf​ value than II

II moves slower and has higher Rf​ value than I

The Rr​ value is the distance travelled by the substance divided by the distance travelled by the solvent front. As I adsorbs more than II, therefore, II will move faster and will have higher Rf​ than 1 .

I moves faster and has higher $R_{f}$ value than $II$

II moves faster and has higher $R_{f}$ value than $I$

I moves slower and has higher $R_{f}$ value than $II$

II moves slower and has higher $R_{f}$ value than $I$

The $R_{r}$ value is the distance travelled by the substance divided by the distance travelled by the solvent front. As $I$ adsorbs more than II, therefore, II will move faster and will have higher $R_{f}$ than 1 .