Name: Basicity of Amine and Its Reactions
Uploaded: 2019-07-19
Duration: 6 min 28 s
Description: Amines are aliphatic and aromatic derivatives of ammonia and are considered weak bases. Let's learn about the basicity of amines and its roles.

Question

What are amines? How are they classified?

Accepted Answer

Amines are the organic derivatives of ammonia in which one, two or all the three hydrogen atoms attached to nitrogen are replaced by the equivalent number of same or different alkyl and /or aryl group(s).

Depending upon the number of hydrogen atoms replaced by alkyl or aryl groups attached to Nitrogen in ammonia, molecule, amines are classified as primary ( $1 °$ ), secondary ( $2 °$ ) and tertiary ( $3 °$ ).
(i) Primary ( $1 °$ ) amines: In primary amines only one hydrogen atom of ammonia is replaced by one alkyl or aryl group. The functional group of primary amines is $- {NH}_{2}$ (amino group).

(ii) Secondary ( $2 °$ ) amines: In secondary amines two hydrogen atoms of ammonia are replaced by two same or different alkyl or aryl groups. The functional group of secondary amines is $> NH$ (imino group).
(iii) Tertiary ( $3 °$ ) amines: In tertiary amines all the three hydrogen atoms from ammonia are replaced by three same or different alkyl or aryl groups. The functional group of tertiary amines is $- N -$ (tertiary nitrogen atom)

What are amines? How are they classified?

Important Questions on Amines

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