Chapter 22, Problem 22.60AP

Interpretation Introduction

(a)

Interpretation:

The stable isomer or decomposition product of the given structure is to be stated.

Concept introduction:

Tautomers are isomers which differ only in the position of the protons and electrons of the double bond of the electronegative atom in the compound. There is no change in the carbon skeleton of the compound. This phenomenon which involves simple proton transfer in an intramolecular fashion is known as tautomerism. The very common example of tautomerism is Keto-enol tautomerism. It can be acid or base-catalyzed.

Interpretation Introduction

(b)

Interpretation:

The stable isomer or decomposition product of the given structure is to be stated.

Concept introduction:

The aromatic compounds are more stable as compared to the cyclic compounds. The delocalization of $\text{π}$ electrons in aromatic rings makes them a stable compound. More the delocalization of $\text{π}$ electrons takes place in the aromatic ring, more is the stability of the aromatic compound.

Interpretation Introduction

(c)

Interpretation:

The stable isomer or decomposition product of the given structure is to be stated.

Concept introduction:

Chemical decomposition is the breakdown of one molecule into two different or the same molecule to attain stability. It may be of three types, thermal, photochemical, and electrolytic decomposition reactions.