Chapter 3, Problem 7CTQ

Interpretation Introduction

Interpretation: Each central atom in below figure that is expected to be $s{p}^2$ -hybridized should be circled.

  

Concept introduction: The rules of hybridization state of an atom are summarized as follows:

• A single bond is always associated with sigma bonds. Molecules that have all atoms connected by sigma bond exclusively are stated to be in $s{p}^3$ hybridization.
• A double bond is always associated with $s{p}^2$ hybridization. In addition, planar molecules and carbocation also show $s{p}^2$ hybridization.
• A triple bond is always associated with $sp$ hybridization. Thus mostly linear molecules such as alkynes are associated with $sp$ hybridization.