Match the LIST-I with LIST-II.
| LIST-I Structure of Compound | LIST-II Name of the compound |
A.  | I. Allyl Halide |
B.  | II. Aryl Halide |
C.  | III. Benzyl Halide |
D.  | IV. Vinyl Halide |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → A-III, B-I, C-IV, D-II
Organic halides are named by the kind of carbon atom that carries the halogen: an sp3 carbon next to a C=C (allylic) or next to an aromatic ring (benzylic), and an sp2 carbon of a C=C (vinylic) or of an aromatic ring (aryl). Each structure is matched by finding the carbon that holds X:
A. Structure A — This matches III. Benzyl Halide. The halogen is on the CH2 group (sp3 carbon) joined to the benzene ring (\( \ce{C6H5CH2X} \)).
B. Structure B — This matches I. Allyl Halide. The halogen is on an sp3 ring carbon, and the next carbon is part of the C=C double bond (3-halocyclohexene).
C. Structure C — This matches IV. Vinyl Halide. The halogen is on a carbon that is itself doubly bonded (1-halocyclohexene).
D. Structure D — This matches II. Aryl Halide. The halogen is attached directly to the benzene ring (2-halotoluene); the \( \ce{CH3} \) group does not change this.
Shortcut: The pair A–III appears only in Option (1).
NCERT (2026-27 edition):
Allylic Halides
