Anthraquinone is prepared by the oxidation of anthracene by chromic acid. The crude reaction product is usually purified by
Fractional Crystallisation
Distillation
Steam distillation
Sublimation
Related Questions
In the context of separating a mixture of ortho and para nitrophenols, what makes ortho-nitrophenol more amenable to steam distillation?
Higher molecular weight
Intermolecular hydrogen bonding
Lower melting point
Intramolecular hydrogen bonding
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?
Fractional crystallization
Simple distillation
Steam distillation
Solvent extraction
Which technique is most effective for separating a 1:1 mixture of ortho-nitrophenol and para-nitrophenol?
Steam distillation
Sublimation
Chromatography
Simple distillation
Which property difference between ortho-nitrophenol and para-nitrophenol is utilized in their separation by steam distillation?
Melting point
Solubility in water
Volatility
Density
Why is steam distillation preferred over simple distillation for separating a mixture of ortho and para nitrophenols?
It is a faster method.
It requires less energy.
It allows separation at lower temperatures, preventing decomposition.
It is more efficient for separating isomers.
A mixture of -nitrophenol and -nitrophenol can be separated by
Fractional crystallisation
Sublimation
Chemical separation
Steam distillation
