By Team Aakash Byju's | 20th January 2023

What are the Methods of Purification of Organic Compounds?

A mixture of two or more miscible liquids, for which the difference in the boiling points is less than 25 K can be separated by the process called:

A

B

C

D

Fractional Distillation

Sedimentation

Decantation

Filtration

Brief Explanation

The correct answer is  A) Fractional Distillation.

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Fractional distillation is the process of employing a fractionating column to divide a liquid mixture into fractions with different boiling points.

Fractional Distillation

Crude Oil

Asphalt

Fuel Oil 350

Lubricating Oil 300

Disel 260

Kerosene 180

Naphtha 120

Petrol 70

Refinery Gas 20

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In other words, a method of separation in which the difference between the boiling temperatures of the volatile components is less than 25K.

Fractional Distillation

Thermometer

Water Out

Condencer

Water In

Heating

Distilling Flask

Fractionating Column

Distillate

Receiving Flask

A mixture is split from one another by heating the mixture in a column and collecting and condensing the vapours drawn from different levels of the column.

Receiving Flask

Water Out

Thermometer

Condencer

Heating

Distillate

Vapour

Distilling Flask

Water In

Cork

Fractionating Column

Distillation Adaptor

Simple Distillation