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Question: The correct match between item \[{\text{I}}\] and item \[{\text{II}}\] is: Item - \[{\text{I}}\] ...

The correct match between item I{\text{I}} and item II{\text{II}} is:
Item - I{\text{I}}
A. Benzaldehyde
B. Alumina
C. Acrylonitrile

Item - II{\text{II}}
P. Adsorbate
Q. Mobile phase
R. Adsorbent

A.A→Q; B→R; C→P{\text{A}} \to {\text{Q; B}} \to {\text{R; C}} \to {\text{P}}
B.A→P; B→R; C→Q{\text{A}} \to {\text{P; B}} \to {\text{R; C}} \to {\text{Q}}
C.A→Q; B→P; C→R{\text{A}} \to {\text{Q; B}} \to {\text{P; C}} \to {\text{R}}
D.A→R; B→Q; C→P{\text{A}} \to {\text{R; B}} \to {\text{Q; C}} \to {\text{P}}

Explanation

Solution

In the list 1 we have been given the molecules and in the item 2 there are the properties shown by these molecules or compounds. Alumina has an ability to adsorb substances on its surface. In the laboratory acrylonitrile is used as solvent in chromatography. Benzaldehyde gets adsorb on the surfaces.

Complete step by step answer:
In the list 1 we have been given the molecules and in the item 2 there are the properties shown by these molecules or compounds. Let us look at the meaning of these properties once:
Adsorbates are the species which adsorbs or get attached to the surface of other substances called adsorbent. A substance acts as an adsorbent because of the presence of unsatisfied valency.
Adsorbent are the chemical species which have the ability to adsorb the other substance onto its surface.
In chromatography, the liquid that flows through the system is known as mobile phase. A mobile phase is either a liquid or a gas. It carries the stationary phase along with it.
Alumina is a very active adsorbent because it is a highly porous material when activated. It absorbs water and is known as desiccant that is which has the ability to keep things dry by absorbing water. It is an oxide of aluminium. Hence, Alumina is an adsorbent.
Acrylonitrile is used as a mobile phase in high performance liquid chromatography (HPLC). It dissolves a wide range of solvent both polar and non polar into it.
Benzaldehyde gets adsorbed onto a polymeric resin and hence is an adsorbate.

So, the correct option is B.

Note:
The process of adsorbate getting adsorbed on adsorbent is known as adsorption. There are two types of adsorption: physical adsorption and chemical adsorption. For example, adsorption of hydrogen gas on the surface of metals such as platinum or palladium.