Functional groups : Specific groups of atoms or bonds within molecules. They are responsible for the characteristic chemical reactions of those molecules. Functional groups are attached to the carbon backbone of organic molecules. They determine the characteristics and chemical reactivity of molecules. Examples -Amine, Alcohol , Alkene, Amide, Ketone, ,Ketone etc.

A group of of atoms which make a carbon compound reactive and decides it\’s properties is called functional groups…
The atom or a group of atoms present in a molecule which determines the properties of that molecule.

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Functional group is an atom or a group of atom, which is bonded to carbon chain and it defines the chemical property of the organic compound.\xa0An atom or group of atoms which show a characteristic unique reactivity when treated with some reagents and also which impart some unique chemical, as well as physical properties to the primary molecule, is defined as a functional group.For example, OH is an alcohol, CHO is an aldehyde etc.
a group of atoms responsible for the characteristic reactions of a particular compound.

Group of atom which desides all chemical property of compound called functional group

In organic chemistry, functional groups are specific groups (moieties) of atoms or bonds within molecules that are responsible for the characteristic chemical reactions of those molecules.

The atom or the group of atoms that provide special property to the organic compound are known as FUNCTIONAL group. ☺☺

Functional groups are defined as specific atoms, group of atoms or ions which are part of a larger hydrocarbon chain and impart characteristic properties to the compounds.Some of the functional groups:\t

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A atom or a group of atoms which determine the physical and chemical properties of a organic compound are called FUNCTIONAL GROUP