Which of the following process is suitable for the purification of aniline?
Simple distillation
Fractional distillation
Fractional crystallisation
Steam distillation
Related Questions
A mixture of -nitrophenol and -nitrophenol can be separated by
Fractional crystallisation
Sublimation
Chemical separation
Steam distillation
Which is most commonly used to dry organic liquids?
Anhydrous Sodium Sulfate
Sodium Carbonate
Sodium Chloride
Potassium Permanganate
Some organic compounds are purified by distillation at low pressure because the compounds are
Low boiling liquids
high boiling liquids
highly volatile
dissociated before reaching their boiling points
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
Some organic compounds are purified by distillation at low pressure because the compounds are
unstable at high temperatures
volatile at high temperatures
insoluble in water
stable at high temperatures
Fractional distillation is useful in distillation of
Petroleum
Coal-tar
Crude alcohol
All of these
Fractional distillation is a process by which the separation of different fractions from mixture of solution is carried by making use of the following property of the fractions
Freezing point
Boiling point
Melting point
Solubility
The relative adsorption of each component of the mixture is expressed in terms of
adsorption factor
retention factor
co-factor
sorption factor
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
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Distillation
Zone refining
Electrolysis
Chromatography