Homologous Series FAQs
What are Homologues?
Homologues are substances that belong to the same homologous series and differ only by a repeating unit and share comparable structures and chemical characteristics.
What are 7 Homologous Series?
Seven homologous common series are,
- Alkanes
- Alkenes
- Alkynes
- Alcohols
- Carboxylic Acids
- Esters
- Amines
What are Properties of a Homologous Series?
Characteristics of a homologous series are,
- Due to the same functional group, they have comparable chemical characteristics.
- Physical characteristics gradually alter as molecule size increases.
- Consistent patterns in solubility, melting, and boiling points.
- Molecular weight steadily increasing with each new component.
What is Difference between Homologous Series and Functional Group?
A functional group is a particular set of atoms that give a molecule its distinctive chemical properties, whereas a homologous series is a collection of compounds with similar structures and characteristics because they share a repeating unit. This is the primary distinction between the two terms.
What is General Formula of Homologous series?
A homologous series’ general formula is the most basic atom-to-atom difference for a molecule in that series. Alkanes, for instance, have the general formula CnH2n+2, where n is number of carbon atoms.
Which is First Member of Homologous Series?
A homologous series’ first member usually has the simplest structure and shortest molecular size. Methane (CH4), for instance, is the first molecule in the alkane series
Homologous Series
Homologous Series is a family of organic compounds where two consecutive members in the family differ from each other by -CH2 repeating unit. The mass difference between two such consecutive members is 14 units. They have same functional groups and show similar trends in physical and chemical properties.
This article deals with definitions, formulas, and examples of homologous series. A table discussing all the possible homologous series has been also added to the article. We have to study Homologous Series in Class 10 in the chapter on Carbon and its compound.