Match the statements of Column A with those of Column B.

Column 1 Column 2

Solvent extraction

Difference in densities

Gravity method

Size of the particles of insoluble solid

Sublimation

High density of insoluble solid

Fractional crystallization

Solubility of one component in a solvent

.

Ability of one component to sublime

-

Difference in solubility of the components in the same solvent at a certain temperature range

Column 1	Column 2
Solvent extraction	Difference in densities
Gravity method	Size of the particles of insoluble solid
Sublimation	High density of insoluble solid
Fractional crystallization	Solubility of one component in a solvent
.	Ability of one component to sublime
-	Difference in solubility of the components in the same solvent at a certain temperature range

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Solution

A. Solvent Extraction: (III) High density of insoluble solid.
It is a technique for separating chemicals or metal complexes based on their respective solubilities in two immiscible liquids, often water and an organic solvent.
B. Gravity Method: (I) Difference in densities
The difference in settling rates or terminal velocities of particles of varying density and size is used to separate them by gravity.
C. Sublimation: (V) Ability of one component to sublime
It is the transition of a substance directly from the solid to the gas state, without passing through the liquid state.
D. Fractional Crystallization: (VI) Difference insolubility of the components in the same solvent at a certain temperature range.
It is a method of refining substances based on differences in their solubility. The process occurs due to the differences in crystallization (forming of crystals).
Conclusion: Hence, the correct match is ; A- (III); B - (I); C- (V) ;D - (VI).

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