Question

What is the difference between Homologous series, Functional group, and Halogens?

Answer 1

Homologous series is a set of hydrocarbons with the same functional group, leading to same chemical properties, with a slight gradation in their physical properties (by CH2 formula unit or 14 amu mass unit).

Functional groups in a homologous series determine the chemical properties of all members of that series. (ex: halogens, alcohols, aldehydes etc.)

Halogens are one of the functional groups which include elements such as Fl, Cl, Br, I etc. They have their own chemical properties which are conferred to the members of a homologous series. (CH3Cl, C2H5Cl etc.)

Answer 2

Homologous>> A homologous series is a group of organic compound having similar structure and similar chemical properties in which the succeive compound differ by CH2 group.

Functional>>> A group of atom which makes a carbon compound reactive and decides it's property .