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

Question

Which technique among the following, is most appropriate in separation of a mixture of 100 mg of p-nitrophenol and picric acid ? (A) Steam distillation (B) 2-5 ft long column of silica gel (C) Sublimation (D) Preparative TLC (Thin Layer Chromatography)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/e25a521b36c85ac05886ae88a23db7d6-.png" /> Solvent polarity has been related to Rf value of nitrocompounds. 100 mg p-nitrophenol and picric acid have different Rf value on silica gel plate ∴ Preparative TLC is best to separate 100 mg of para nitrophenol and picric acid

Q. Which technique among the following, is most appropriate in separation of a mixture of $100 m g$ of $p$ -nitrophenol and picric acid ?

Steam distillation

2-5 ft long column of silica gel

Sublimation

Preparative TLC (Thin Layer Chromatography)

Solvent polarity has been related to $R_{f}$ value of nitrocompounds.
$100 m g$ p-nitrophenol and picric acid have different $R_{f}$ value on silica gel plate
$∴$ Preparative TLC is best to separate $100 m g$ of para nitrophenol and picric acid

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