Match List-I with List-II
|
List-I Common name |
List-II IUPAC name |
|
(A) Vinyl Chloride |
(I) 1-Chloro-2-methylbenzene |
|
(B) Chloroform |
(II) Dichloromethane |
|
(C) Methylene chloride |
(III) Trichloromethane |
|
(D) o-Chlorotoluene |
(IV) Chloroethene |
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)
Common names of haloalkanes name the alkyl group and then the halide; IUPAC names treat the halogen as a substituent (chloro-, bromo-) on the parent hydrocarbon, with numbers for its position. Writing the structure of each compound makes the match direct.
(A) Vinyl Chloride — This matches (IV) Chloroethene.
(B) Chloroform — This matches (III) Trichloromethane.
(C) Methylene chloride — This matches (II) Dichloromethane.
(D) o-Chlorotoluene — This matches (I) 1-Chloro-2-methylbenzene. The chlorine is ortho (next) to the methyl group, so the ring carbons carrying Cl and \( \ce{CH3} \) are numbered 1 and 2.
Shortcut: (A)-(IV) appears only in Options (3) and (4), and of these only Option (3) has (B)-(III).
NCERT (2026-27 edition):
Nomenclature – …
