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  4. Following chromatogram was developed by adsorption of compound 'A' on a 6 cm TLC glass plate. Retardation factor of the compound 'A' is × 10-1.

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Q. Following chromatogram was developed by adsorption of compound '$A$' on a $6\, cm$ TLC glass plate. Retardation factor of the compound '$A$' is ___$\times 10^{-1}$.Chemistry Question Image

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Solution:

$ R _{ f }=\frac{\text { Distance moved by the substance from base line }}{\text { Distance moved by the solvent from base line }} $
$ =\frac{3.0\, cm }{5.0 \, cm }=0.6 \text { or } 6 \times 10^{-1}$