Separation Technique | MCQs

Explanation

Fractional distillation separates the components of petroleum based on their boiling points.

It produces useful products like petrol, diesel, kerosene, and more.

Explanation

Filtration is used to separate an insoluble solid (like sand) from a liquid (like water).

The sand stays on the filter paper, while the water passes through.

Explanation

The Distribution law controls solvent extraction. 

Distribution law (also known as Nernst's law):

This law states that when a solute is added to two immiscible liquids,

It will distribute itself between the two liquids in a constant ratio,

Regardless of the total amount of solute added.

This ratio is called the partition coefficient. 

Explanation

 Paper chromatography works on the principle of adsorption and partition,

Where compounds are separated based on their movement through paper (stationary phase) with the help of a solvent (mobile phase).

Explanation

Distillation is a technique used to separate a volatile substance (which evaporates easily) from a non-volatile substance by heating the mixture and condensing the vapor.

It is commonly used to purify liquids or separate components based on their boiling points.

Explanation

In chromatographic analysis, the principle used is adsorption, where the components of a mixture interact with the stationary phase and are separated based on their differing affinities for the stationary phase.

Explanation

Fractional distillation separates miscible liquids that have different boiling points.

It is useful for separating ethanol from a mixture of ethanol and water,

and for separating crude oil into different products such as petrol, diesel, and kerosene.

Explanation

Explanation

• Filtration
• Sedimentation
• Decantation
• Distillation
• Chromatography

Explanation

The retention factor (Rf) in chromatography is a unitless value

Because it is calculated as a ratio of two distances (distance traveled by the solute and distance traveled by the solvent), the units of length cancel out.