Match List I with List II

List I	List II
	(I) Tertiary
	(II) Quaternary
(C) \((C_2H_5)_2CHNH_2\)	(III) Secondary
(D) \((C_2H_5)_2NH\)	(IV) Primary

Choose the correct answers from the options given below:

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

The correct answer is option 1. (A)-(II), (B)-(I), (C)-(IV), (D)-(III).

Primary (1°), secondary (2°), tertiary (3°) and quaternary (4°) alkyl carbons are defined according to the number of carbons directly attached to that carbon.

When we come to amines, they are named a little bit differently than the other organic compounds.

Amines are named according to the number of carbons attached to the nitrogen.

Primary, secondary, and tertiary amines are nitrogens bound to one, two and three carbons, respectively.

It is possible for the nitrogen to be bound to a fourth carbon. This species is known as an alkylammonium salt. It is not technically an amine since it lacks a lone pair on nitrogen and cannot act as a base.

Note:

Remember that the positive formal charge on nitrogen doesn’t imply that there is an empty p orbital there! Always assume a full octet on positively charged nitrogen and oxygen.