Advertisements
Advertisements
प्रश्न
Give a brief description of the principles of Fractional distillation.
उत्तर
Fractional distillation is used to purify and separate liquids present in the mixture having their boiling point close to each other. The process of separation of the components in a liquid mixture at their respective boiling points in the form of vapours and the subsequent condensation of those vapours is called fractional distillation. This method is applied in distillation of petroleum. coal tar and crude oil.
APPEARS IN
संबंधित प्रश्न
Explain, why an organic liquid vaporises at a temperature below its boiling point in its steam distillation?
Ortho and para – nitro phenol can be separated by ______.
A liquid which decomposes at its boiling point can be purified by ______.
Give a brief description of the principle of column Chromatography.
Explain paper chromatography.
If a liquid compound decomposes at its boiling point, which method (s) can you choose for its purification. It is known that the compound is stable at low pressure, steam volatile and insoluble in water.
By mistake, an alcohol (boiling point 97°C) was mixed with a hydrocarbon (boiling point 68°C). Suggest a suitable method to separate the two compounds. Explain the reason for your choice.
Assertion (A): Components of a mixture of red and blue inks can be separated by distributing the components between stationary and mobile phases in paper chromatography.
Reason (R): The coloured components of inks migrate at different rates because paper selectively retains different components according to the difference in their partition between the two phases.
You have a mixture of three liquids A, B and C. There is a large difference in the boiling points of A and rest of the two liquids i.e., B and C. Boiling point of liquids B and C are quite close. Liquid A boils at a higher temperature than B and C and boiling point of B is lower than C. How will you separate the components of the mixture. Draw a diagram showing set up of the apparatus for the process.
A liquid compound (x) can be purified by steam distillation only if it is ______.
