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प्रश्न
The purity of an organic compound is determined by ______.
विकल्प
Chromatography
Crystallisation
melting or boiling point
both Chromatography and melting or boiling point
उत्तर
The purity of an organic compound is determined by chromatography and melting or boiling point.
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संबंधित प्रश्न
Ortho and para – nitro phenol can be separated by ______.
A liquid which decomposes at its boiling point can be purified 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.
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 with high boiling point decomposes on simple distillation but it can be steam distilled for its purification. Explain how is it possible?
