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Amines are aliphatic and aromatic derivatives of ammonia. Amines, like ammonia, are weak bases (K b = 10 −4 to 10 −6). This basicity is due to the unshared electron pair on the nitrogen atom.

Classification and nomenclature of amines Amines are classified as primary, secondary, or tertiary based upon the number of carbon‐containing groups that are attached to the nitrogen atom. Those amine compounds that have only one group attached to the nitrogen atom are primary, while those with two or three groups attached to the nitrogen atom are secondary and tertiary, respectively. 
Primary amines 

In primary amines, only one of the hydrogen atoms in the ammonia molecule has been replaced. That means that the formula of the primary amine will be RNH2 where "R" is an alkyl group 

Secondary amines 

In a secondary amine, two of the hydrogens in an ammonia molecule have been replaced by hydrocarbon groups. At this level, you are only likely to come across simple ones where both of the hydrocarbon groups are alkyl groups and both are the same. 

Tertiary amines 

In a tertiary amine, all of the hydrogens in an ammonia molecule have been replaced by hydrocarbon groups. Again, you are only likely to come across simple ones where all three of the hydrocarbon groups are alkyl groups and all three are the same. 

The further detail on Introduction and nomenclature of amines will be given to you by Mr. Lalit Sardana (IIT-JEE AIR 243). He has been running a tutorial house since past many years and this tutorial house has a history of bringing up maximum number of IIT selections from the city. He is an exceptional teacher. Introduction and Nomenclature of Amines are the topics which are asked in class 11th CBSE, 12th CBSE exams and competitive exams like JEE Mains, JEE Advanced, VITEEE, KCET Engineering, WBJEE, MPPET, AFMC, AIPMT.

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