Homologous Series

Definition

A homologous series of a functional group includes compounds with a similar difference between them (like an AP). Thus, the compounds substitute for hydrogen in the same functional group in a chain. For example,

• In the Alkanes group,

  • Propane () and Butane () have a difference of

• In the alkene group,

  • Propene () and Butene () have a difference of

• In the Alcohol group,

  • Propanol () and Butanol () have a difference of

• The members of a homologous series have similar chemical properties.

Example

General Formulae

• Alkane;;

• Alkene;; $\text{C}n\text{H}{2n}$$

• Alkyne;;

• Alcohol;;

• Aldehyde;;

• Ketone;;

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Backlinks

Functional Groups of Carbon Compounds

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Flashcards

What is a homologous series? ? A homologous series of a functional group includes compounds with a similar difference between them (like an AP). Thus, the compounds substitute for hydrogen in the same functional group in a chain. For example,

• In the Alkanes group,
  • Propane () and Butane () have a difference of
• In the alkene group,
  • Propene () and Butene () have a difference of
• In the Alcohol group,
  • Propanol () and Butanol () have a difference of

The members of a {{homologous series}} have similar chemical properties.

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