Chapter 21, Problem 2RQ

Interpretation Introduction

Interpretation: An alkene and an alkyne is to be defined. Their general formula and the bond angles between them are to be stated. Bonding in alkenes and alkynes using ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}$ and ${\text{C}}_{\text{2}}{\text{H}}_{\text{2}}$ is to be described and the reason for the restricted rotation between them is to be stated. To decide weather ${\text{C}}_{\text{n}}{\text{H}}_{\text{2n}}$ is general formula of cyclic alkene and if not, then their general formula is to be stated.

Concept introduction: Unsaturated hydrocarbons are characterized by the presence of double bonds or triple bonds linking carbon atoms in a chemical compound. However, in saturated hydrocarbons, the carbon atoms are linked by the single bond.