Q- What is meant by heteroatom ? give examples.
Hetero atoms are used in organic chemistry, basically all other atom than carbon and hydrogen are known as hetero atoms. The common hetero atoms which are used in Organic chemistry are, O, N, S, P ,X ( Cl, Br, I etc.)
These hetero atoms are very useful in synthetic chemistry as they provide a series of compounds which are essential for the life as, in DNA the Nitrogen bases are used to pair and also in all the amino acids, amide group (-CONH2) is found.
They are Used as all functional groups upon which the organic chemistry and pharmaceutical chemistry depends. For ex. in Amines (NH2), In Carboxylic acids (-COOH), in acid chlorides, amides, cyanides etc.