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The species that exhibits the highest R(...

The species that exhibits the highest `R_(f)` value in a thin layer chromatogram using a nonpolar solvent on a silica gel plate is :

A

B

C

D

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The correct Answer is:
A
The most often used stationary phase silica gel and alumina are polar material. Consequently the least polar compound will have the highest `R_(f)` value
Option ) (a is least polar among other options so it’s `R_(f)` value will be maximum.
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