Question

Explain the gradation of physical and chemical properties of the compounds of homologous series

Answer 1

same gen formula
differ by  1 carbon (preceding ones) and 2 hydrogen
similar chemical properties
increase in mol mass gradual change in physical properties
difference of adjacent mol masses is 14u

Answer 2

The physical property of any particular member of a homologous series depends on its size, or its position within the homologous series. The physical properties, such as solubility, melting point, boiling point, specific gravity etc. show a gradual change with the increase in their relative molecular masses.