Advertisements
Advertisements
Question
A liquid which decomposes at its boiling point can be purified by ______.
Options
distillation at atmospheric pressure
distillation under reduced pressure
fractional distillation
steam distillation
Advertisements
Solution
A liquid which decomposes at its boiling point can be purified by distillation under reduced pressure.
APPEARS IN
RELATED QUESTIONS
Explain, why an organic liquid vaporises at a temperature below its boiling point in its steam distillation?
The purity of an organic compound is determined by ______.
Assertion: \[\begin{array}{cc}
\ce{CH - C = CH - COOH}\\|\phantom{.}\\
\phantom{........}\ce{COOC2H5}\end{array}\]
Reason: The principal functional group gets lowest number followed by double bond (or) triple bond.
Give a brief description of the principles of Fractional distillation.
Give a brief description of the principle of column 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 ______.
