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  4. The species that exhibits the highest Rf value in a thin layer chromatogram using a non-polar solvent on a silica gel plate is

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Q. The species that exhibits the highest $R_f$ value in a thin layer chromatogram using a non-polar solvent on a silica gel plate is

KVPYKVPY 2014

Solution:

The most often used stationary phase gel and alumina are polar material. Consequently, the least polar compound will have the highest $R_f$ value, as they will be least bounded to the stationary phase and moves quickly up the $TLC$ plate. Among the given compound, compound (a) is least polar, so its $R_f$ value will be maximum.