Advertisements
Advertisements
प्रश्न
What is chromatography?
Advertisements
उत्तर १
The process of separating different dissolved constituents of a mixture by their absorption on an appropriate material is called chromatography.
उत्तर २
In 1906, Iswett coined the name chromatography (Greek: Chroma, which means colour, and graphy, which means writing) to describe the process of separating coloured compounds from plants. Since the technique is now commonly utilised for the separation, purification, and characterisation of the components of a mixture, whether they are coloured or colourless, the word has lost its original meaning. It is based on the fundamental idea of dividing an organic compound mixture's constituent parts between two phases. One phase is known as the stationary phase and can be either a liquid or a solid supported on a solid. The other phase, referred to as the moving phase, is characterised by motion and can be made up of either a liquid or a gas.
APPEARS IN
संबंधित प्रश्न
On what principle is Chromatography method based?
What is meant by stationary phase and mobile phase in chromatography?
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.
Give a reason for the following statement:
In chromatography the absorbent medium e.g. What man filter paper is known as the stationary phase.
Label the diagram and explain the process in your words.

What is paper chromatography?
The separation of two coloured substances was done by paper chromatography. The distances travelled by solvent front, substance A and substance B from the baseline are 3.25 cm, 2.08 cm and 1.05 cm respectively. The ratio of Rf values of A to B is ______.
Which one of the following techniques is not used to spot components of a mixture separated on thin layer chromatographic plate?
What is the function of the stationary phase in chromatography?
