JEE Main 2022 · 26 Jul · Shift 1 · Chemistry Q71

ChemistrySingle correct+4 / -1Question 71 of 90

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

Steam distillation

2-5 ft long column of silica gel

Sublimation

Preparative TLC (Thin Layer Chromatography)

Answer and worked solution

Official answer: D

100 mg of two polar solids is best separated by preparative TLC.

(D)

Topics:Purification and characterisation

JEE Main 2022 · 26 Jul · Shift 1, Chemistry question 71