JEE Mains · Chemistry · STD 12 - 7. Alcohol, phenol and ethers
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)
Answer & Solution
Correct Answer
(D) Preparative \(TLC\) (Thin Layer Chromatography)
Step-by-step Solution
Detailed explanation
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 \(\therefore\) Preparative TLC is best to separate \(100\,mg\) of
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