Which method is used to purify liquids that decompose at or below their boiling points?

Separation of petroleum into its components is mostly done by:

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

Which technique is most effective for separating a 1:1 mixture of ortho-nitrophenol and para-nitrophenol?

Some organic compounds are purified by distillation at low pressure because the compounds are

Fractional distillation is useful in distillation of

Which is most commonly used to dry organic liquids?

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

A mixture containing equal amounts of ortho-nitrophenol and para-nitrophenol needs to be separated. Which of the following separation methods exploits the difference in their volatility due to intramolecular and intermolecular hydrogen bonding?

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

Steam distillation is based on the fact that vaporisation of organic liquid takes place at