Define the following : Hetero atom in a carbon compound

Explanation

i. Many carbon compounds are formed in which atoms of elements such as oxygen, nitrogen, sulphur, halogens, etc., substitute one or more hydrogen atoms in the hydrocarbon chain.
ii. The atom of an element other than carbon and hydrogen which replaces one or more hydrogen atoms in the hydrocarbon chain is called a hetero atom.
E.g. In `CH_(3)OH, 'O'` is a hetero atom.
iii. Hetero atoms often exist in the form of certain group of atoms.