Match List-I (amine) with List-II (common name).
| List-I | List-II |
| (A) C2H5NH2 | (I) N,N-Dimethylaniline |
| (B) CH3NHCH2CH3 | (II) Aniline |
| (C) C6H5NH2 | (III) Ethylmethylamine |
| (D) C6H5N(CH3)2 | (IV) Ethylamine |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-IV, B-III, C-II, D-I
In the common system an aliphatic amine is named by prefixing the alkyl group(s) to “amine”, written as one word; \( \ce{C6H5NH2} \) is called aniline, and groups on its nitrogen get the locant N.
(A) \( \ce{C2H5NH2} \) — This matches (IV) Ethylamine. One ethyl group on –NH2.
(B) \( \ce{CH3NHCH2CH3} \) — This matches (III) Ethylmethylamine. A secondary amine with one ethyl and one methyl group on nitrogen.
(C) \( \ce{C6H5NH2} \) — This matches (II) Aniline. –NH2 directly on the benzene ring; the simplest arylamine.
(D) \( \ce{C6H5N(CH3)2} \) — This matches (I) N,N-Dimethylaniline. Aniline with both H atoms of –NH2 replaced by methyl groups, so each methyl gets the locant N.
NCERT (2026-27 edition):
Table 9.1: Nomenclature of Some Alkylamines and Arylamines
