Question

In gas chromatography, the basis for separation of the components of the volatile material is the difference in:
A.Partition coefficients
B.Conductivity
C.Molecular weight
D.Molarity

Answer 1

Hint:We have to know that a type of chromatography that is generally used in analytical chemistry for analyzing and separation of compounds, which could be vapourized without any decomposition, is known as gas chromatography. We can identify a compound using gas chromatography.

Complete step by step answer:
We must remember that in gas chromatography, the mobile phase is a carrier gas, which is generally an inert gas like as helium or an unreactive gas such as nitrogen. Helium is the most commonly used carrier gas and we can also prefer it for improved separations.
We have to know that typical gas chromatograph has,
an injection port
a column
carrier gas flow control equipment,
ovens and heaters for keeping temperatures of the injection port
the column
an integrator chart recorder
a detector
A microscopic layer of liquid on an inert solid support, within a glass piece or metal tubing known as a column is the stationary phase. The instrument which is used to perform gas chromatography is known as a gas chromatograph.
The difference in the partition coefficient of the constituents as they are carried through the column by an inert gas like helium is the basis for separation of the components of the volatile material.
Therefore, option (A) is correct.

Note: We can separate the compounds in gas-liquid chromatography; a solution sample which consists of organic compounds is injected into the sample port where it would be vaporized. The injected vaporized samples are then carried by an inert gas. This inert gas passes through a glass column packed with silica that is coated with a liquid. Materials which are less soluble in the liquid would increase the result faster than the material with higher solubility.