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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
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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 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.
A liquid with high boiling point decomposes on simple distillation but it can be steam distilled for its purification. Explain how is it possible?
A liquid compound (x) can be purified by steam distillation only if it is ______.
