Question

Which of the following statements is not true about partition chromatography?
A. Stationary phase is a finely divided solid adsorbent
B. Paper chromatography is an example of partition chromatography.
C. Separation depends upon equilibration of solute between a mobile and a stationary phase.
D. Mobile phase can be a gas.

Answer 1

Hint: We know that chromatography is the chemical method or analytical method which is generally used for the separation of mixtures. The mixture is usually dissolved in a fluid like water, gas, solvent, etc.

Complete answer:
Now, statement A is not correct about partition chromatography. The stationary phase may or may not be excellently separated solid adsorbent. In the paper chromatography, the paper is utilized as one of the stationary phases, and usually, it is not finely separated.
The separation of the constituents from the given sample mixture is passed out by the process named as the partition of the constituents between two different phases. Generally, both phases occur in liquid form. In this process, the immiscible solid surface covered with one of the liquid media on the stationary phase is in the portable or moving phase. The liquid surface is stopped by the stationary phase, which usually results in making its a stationary phase.
Thus, the option which is not true about the partition chromatography is “Stationary phase is a finely divided solid adsorbent”.

Hence, the correct choice for this given question is A that is “Stationary phase is a finely divided solid adsorbent”.

Note:
Usually, the partition chromatography is divided into two types one is liquid-liquid chromatography and the second is gas-liquid chromatography. Commonly, chromatography is used in forensic pathology and arson investigation. It is also used as an additive detection and used in several biological methods for the detection of metabolomics and proteomics and nucleic acid research.