Which part of an organic compound determines physical and chemical properties?
An alkyl group is formed when one hydrogen atom is removed from an alkane molecule.
This alkyl group determines the physical properties of an organic compound.
An atom or group of atoms that describes the structure of an organic compound is known as a functional group. This is responsible for the characteristics of chemical properties.
Hence, the alkyl group defines the physical properties, meanwhile, the functional group determines the chemical properties of an organic compound.