JEE Main201815 Apr 2018Evening ShiftChemistryGeneral Organic ChemistryActual
Two compounds I and II are eluted by column chromato-graphy(adsorption of I > II). Which one of the following is a correct statement?
Options
- AII moves slower and has higher R _ f value than I
- BII moves faster and has higher R _ f value than I
- CI moves faster and has higher R _ f value than II
- DI moves slower and has higher R _ f value than I
Correct answer
B. II moves faster and has higher R _ f value than I
Step-by-step solution
Since, adsorption of I > II, I is firmly attached to column (stationary phase). Hence, it will move slowly and will move little distance. A1so II is loosely attached to column (stationary phase). Hence, it will move faster and will move large distance.