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प्रश्न
What is chromatography?
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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.
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संबंधित प्रश्न
Select the correct alternative from the choices given for the following statement:
In chromatography the filter paper is
Define the Stationary phase.
During hearing of a court case, the judge suspected that some changes in the documents had been carried out. He asked the forensic department to check the ink used at two different places. According to you which technique can give the best results?
What is paper chromatography?
Paper chromatography is ______.
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?
In chromatography, which of the following statement is INCORRECT for Rf?
Which basic principle is used in chromatography?
What is the function of the stationary phase in chromatography?
