Organic Compounds - Homologous Series

Question 1

What is a general formula?

Answer 1

A formula that represents the composition of any member in a homologous series

Question 2

Homologous Series

Answer 2

This is a series or family of organic compounds that have similar features and chemical properties due to them having the same functional group

Question 3

What are the general characteristics of a homologous series?

Answer 3

• The same general formula
• Same functional group
• Similar chemical properties
• Gradation in their physical properties
• The difference in the molecular formula between one member and the next is CH2

Question 4

What are the general formulas for alkanes and alkenes?

Answer 4

Alkanes: C n H2n+2

Alkenes: C n H2n

Question 5

What is structural isomerism?

Answer 5

Structural isomerism is when compounds have the same molecular formula but a different arrangement of atoms.

Question 6

Names and structures of the functional groups

Answer 6

Question 7

Two types of isomers:

Answer 7

chain and position

In chain isomerism the structure of the carbon chain differs

In position isomerism, the position of the functional group differs

Question 8

Chain isomerism (PIC)

Answer 8

Question 9

Position Isomerism (PIC)

Answer 9