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JEE Main202226 Jul 2022Morning ShiftChemistryGeneral Organic ChemistryActual

Which technique among the following, is most appropriate in separation of a mixture of 100 mg of p -nitrophenol and picric acid?

Options

  1. ASteam distillation
  2. B2 - 5   ft long column of silica gel
  3. CSublimation
  4. DPreparative TLC (Thin Layer Chromatography)

Correct answer

D. Preparative TLC (Thin Layer Chromatography)

Step-by-step solution

Solvent polarity has been related to R f value of nitrocompounds. 100 mg p -nitrophenol and picric acid have different R f value on silica gel plate ∴ Preparative TLC is best to separate 100 mg of para nitrophenol and picric acid

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