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Organic Chemistry – Some Basic Principles And Techniques

Question
CBSEENCH11008264
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The order of stability of the following tautomeric compound is 

  • I>Ii>III

  • III > II>I

  • Ii> I> III

  • II> III> I

Solution

B.

III > II>I

The rolls of beta-dicarbonyl compounds are more stable because of conjugation and intramolecular H-bonding. Thus, the order of stability is,

Less stable as (=) bond is not in conjugation with carbonyl group.

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

What type of hybridisation is involved in: (i) Planar (ii) Linear molecules?

What does IUPAC stand for?

What system of nomenclature is accepted universally?

What are isomers?

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

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