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प्रश्न
A liquid which decomposes at its boiling point can be purified by ______.
पर्याय
distillation at atmospheric pressure
distillation under reduced pressure
fractional distillation
steam distillation
उत्तर
A liquid which decomposes at its boiling point can be purified by distillation under reduced pressure.
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 ______.
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.
Explain paper chromatography.
The fragrance of flowers is due to the presence of some steam volatile organic compounds called essential oils. These are generally insoluble in water at room temperature but are miscible with water vapour in vapour phase. A suitable method for the extraction of these oils from the flowers is ______.
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.
