Advertisements
Advertisements
प्रश्न
Give a brief description of the principle of the following technique taking an example.
Chromatography
उत्तर
Chromatography is one of the most useful methods for the separation and purification of organic compounds.
Principle:
It is based on the difference in movement of individual components of a mixture through the stationary phase under the influence of mobile phase.
For example, a mixture of red and blue ink can be separated by chromatography. A drop of the mixture is placed on the chromatogram. The component of the ink, which is less adsorbed on the chromatogram, moves with the mobile phase while the less adsorbed component remains almost stationary.
APPEARS IN
संबंधित प्रश्न
Which separation technique will you apply for the separation of the following?
Different pigments from an extract of flower petals.
Explain the principle of paper chromatography.
What is chromatography?
On what principle is this method based?
Select the correct alternative from the choices given for the following statement:
In chromatography the filter paper is
Give a scientific reason.
In chromatography, the ingredients of a mixture rise up to limited height water rises up to the upper end of the paper.
State the correct technique for the separation of the following mixture.
solid constituents in a liquid constituent by adsorption.
Dyes of an ink
- Give the principle involved in the separation of the mixture
- Give the technique of separation of the mixture.
Choose the correct option.
Colourless components on chromatogram can not be observed by the following:
Give names of two materials used as stationary phase in chromatography.
Name the different types of Chromatography and explain the principles underlying them.
How do you visualize colourless compounds after separation in TLC and Paper Chromatography?
Compare TLC and Paper Chromatography techniques.
Label the diagram and explain the process in your words.
The principle involved in paper chromatography is ______.
What is paper chromatography?
In chromatography, which of the following statement is INCORRECT for Rf?