Match List I with List II
| LIST I | LIST II |
| A. CH3CH2NH2 | I. N,N-Dimethylaniline |
| B. CH3–N(CH3)–CH3 | II. Ethylamine |
| C. C6H5NH2 | III. Aniline |
| D. C6H5N(CH3)2 | IV. Trimethylamine |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-II, B-IV, C-III, D-I
Amines are named from the groups attached to nitrogen. In common names the alkyl groups are listed before “amine”; an aryl amine is named as a derivative of aniline, with substituents on N shown by “N”.
A. \( \ce{CH3CH2NH2} \) — This matches II. Ethylamine. One ethyl group on \( \ce{NH2} \): a primary amine (IUPAC ethanamine).
B. \( \ce{CH3-N(CH3)-CH3} \) — This matches IV. Trimethylamine. Three methyl groups on N: \( \ce{(CH3)3N} \), a tertiary amine (IUPAC N,N-dimethylmethanamine).
C. \( \ce{C6H5NH2} \) — This matches III. Aniline. The \( \ce{NH2} \) group on a benzene ring: aniline (IUPAC benzenamine).
D. \( \ce{C6H5N(CH3)2} \) — This matches I. N,N-Dimethylaniline. Both H atoms of the \( \ce{NH2} \) of aniline are replaced by methyl groups (IUPAC N,N-dimethylbenzenamine).
Shortcut: The pair B-IV appears only in Option (3).
NCERT (2026-27 edition):
Nomenclature
