JEE Main 2024 · ChemistryMultiple choiceDiagram basedEasyDiagram reading

JEE Main 30 January 2024, Shift 1, Chemistry Q73

Question 73 of 90 in this shift, Chemistry question 13 of 30, Section A.

Example of vinylic halide is :

The figure, in words

Options are drawn ring structures with X as halogen: (1) cyclohexene bearing CH2X on a C=C carbon; (2) cyclohexene with X on the allylic ring carbon; (3) cyclohexylidene =CH-X (exocyclic double bond); (4) halobenzene.

(1)[figure: cyclohexene ring with $\mathrm{CH_2X}$ on one of the doubly bonded carbons]
(2)[figure: cyclohexene ring with X on the sp3 carbon adjacent to the double bond]
(3)[figure: cyclohexane ring with exocyclic C=CH-X]Official answer
(4)[figure: benzene ring with X]

Official answer

Option 3

NTA final key.

Chapter: Haloalkanes and Haloarenes
Topic: SN1 and SN2 Mechanisms
Idea tested: Inertness of Vinylic and Aryl Halides

Same topic in other shifts

All SN1 and SN2 Mechanisms questions

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.