The species that exhibits the highest R_f val | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In thin layer chromatography $(TLC)$,the stationary phase (silica gel) is polar in nature.The $R_f$ value is inversely proportional to the polarit

Vedclass · Accepted Answer

Propylbenzene

Vedclass · Answer

(A) In thin layer chromatography $(TLC)$,the stationary phase (silica gel) is polar in nature.The $R_f$ value is inversely proportional to the polarity of the compound.Non-polar compounds interact less with the polar stationary phase and move faster with the non-polar solvent,resulting in a higher $R_f$ value.Comparing the polarities:$1$. $N$-methylpyridinium ion is an ionic species,making it the most polar.$2$. Phenol has an $-OH$ group,allowing for hydrogen bonding,making it polar.$3$. Pyridine is polar due to the lone pair on nitrogen.$4$. Propylbenzene is a hydrocarbon and is the least polar among the given options.Therefore,propylbenzene will have the highest $R_f$ value.

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

Similar Questions

On heating,some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as

Write the applications of chromatography.

Which method is used to separate glycerol from spent lye in the soap industry?

If a liquid compound decomposes at its boiling point,which method$(s)$ can you choose for its purification? It is known that the compound is stable at low pressure,steam volatile,and insoluble in water.

The fragrance of flowers is due to the presence of some steam volatile organic compounds called essential oils. These are generally insoluble in water at room temperature but are miscible with water vapour in the vapour phase. $A$ suitable method for the extraction of these oils from the flowers is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module