Chapter 6, Problem 68P

(a)

Interpretation Introduction

Interpretation:

The structure for all alkene with formula ${\text{C}}_{\text{6}}{\text{H}}_{\text{12}}$ are given.  The most stable compound among them should be identified.

Concept Introduction:

The stability of the alkene increases as the number of alkyl substituents bonded to $s{p}^2$ carbon increases.  Other hand the most stable alkene has lowest heat of generation.  The reason is they are already having low energy level.  When we hydrogenate an alkene to get alkane, thus alkane is more stable compared to alkene, therefore energy is released.  Hence it is more stable and more stable alkene.

(b)

Interpretation Introduction

Interpretation:

The structure for all alkene with formula ${\text{C}}_{\text{6}}{\text{H}}_{\text{12}}$ are given.  The least stable compound among them should be identified.

Concept Introduction:

The stability of the alkene increases as the number of alkyl substituents bonded to $s{p}^2$ carbon increases.  Other hand the most stable alkene has lowest heat of generation.  The reason is they are already having low energy level.  When we hydrogenate an alkene to get alkane, thus alkane is more stable compared to alkene, therefore energy is released.  Hence it is more stable and more stable alkene.