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Organic Chemistry – Some Basic Principles And Techniques

Question

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What do you mean by fractional crystallisation ?

Solution

The process of repeating crystallisation for the separation of two or more solid substances (which are soluble in the same solvent but to a different extent) or cooling the hot saturated solution containing these is called fractional crystallisation. This technique is applied:
(i) to purify a solid compound containing solid impurities having different solubilities in the same solvent.

Some More Questions From Organic Chemistry – Some Basic Principles and Techniques Chapter

How many chain isomers are possible for pentane?

Which characteristic is common to different isomers of a compound?

Name three alkanes which do not show chain isomerism.

Name the types of structural isomerism shown by alkanes.

Name the four main types of structural isomerism.

Write the three possible open chains of five carbon atoms

What types of structural isomerism is shown by the following pairs of organic compounds ?

Write the tautomer of acetaldehyde and write its IUPAC name.

Draw the structure of the tautomer of phenol and write its IUPAC name.

Define ring - chain isomerism. Given one example.?

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