Which method is used for purifying the water insoluble compounds?
Sublimation
Steam distillation
Simple distillation
Fractional distillation
In which direction does the solvent moves in ascending paper chromatography?
Horizontal
downwards
Upwards
None
What type of impurities is needed for purifying the mixture of compounds by the steam distillation?
Non-volatile
Volatile
Insoluble in water
Both a & c
Which principle is used in column chromatography?
Partition
Adsorption
Absorption
Distribution
Which among the following purification method is used for separating the mixture of nitrobenzene and benzene?
Chromatography
Crystallisation
In which of the following does an organic compound is soluble?
Non polar solvents
Polar solvents
Water
HCl
Which purification method is used for purifying the compound camphor?
Who was first introduced the chromatographic technique?
Raoult
Alexander Fleming
M.S Tswett
none
How can be the compounds are separated when the stationary phase is solid?
Both partition and adsorption
Either partition or adsorption
Which of the following layers will form when the organic substance is extracted from its aqueous solution?
Organic layer
Aqueous layer
Both a) & c)
Neither a) & c)
