Anthraquinone is prepared by the oxidation of anthracene by chromic acid. The crude reaction product is usually purified by

In the context of separating a mixture of ortho and para nitrophenols, what makes ortho-nitrophenol more amenable to steam distillation?

Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?

Mercury, a liquid metal at room temperature, is often contaminated with other metals. Which purification technique is most effective for obtaining highly pure mercury?

Diastereomers can be separated by :

Anthraquinone is prepared by the oxidation of anthracene by chromic acid. The crude reaction product is usually purified by

You are purifying a sample containing p-nitroaniline and o-nitroaniline. Exploiting the difference in their basicity, which method would be most effective for separating these isomers?

The best method for the separation of naphthalene and benzoic acid from their mixture is

In estimation of nitrogen by Duma's method 1.18 g of an orgainc compound gave 224 mL of ${N_2}$ at NTP. The percentage of nitrogen in the compound is

Which property difference between ortho-nitrophenol and para-nitrophenol is utilized in their separation by steam distillation?

In paper chromatography, the retention factor (Rf) is calculated as: