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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceDiagram basedMediumApplication

JEE Main 26 February 2021, Shift 2, Chemistry Q43

Question 43 of 90 in this shift, Chemistry question 13 of 30, Section A.

Identify A in the given reaction. [structure drawn] →SOCl2\xrightarrow{\mathrm{SOCl_2}} A (Major Product)

The figure, in words

Reactant: a fused bicyclic drawing, one six-membered ring drawn with double bonds (aromatic-style) and one saturated six-membered ring; labels as drawn: OH at the top of the ring-fusion-adjacent carbon of the unsaturated ring, CH2OH at the bottom of the unsaturated ring, and HO on the saturated ring (bottom-left). Options are the same skeleton with the printed substituent labels OH/Cl/CH2OH/CH2Cl as listed.
  1. (1)[structure: bicyclic skeleton as in the reactant with OH at the top, OH on the saturated ring, and CH2Cl\mathrm{CH_2Cl} at the bottom]
  2. (2)[structure: same skeleton with Cl at the top, OH on the saturated ring, CH2OH\mathrm{CH_2OH} at the bottom]
  3. (3)[structure: same skeleton with OH at the top, Cl on the saturated ring, CH2Cl\mathrm{CH_2Cl} at the bottom]Official answer
  4. (4)[structure: same skeleton with Cl at the top, Cl on the saturated ring, CH2Cl\mathrm{CH_2Cl} at the bottom]

Official answer

Option 3

NTA final key.

Chapter
Alcohols, Phenols and Ethers
Topic
Alcohols and Phenols
Idea tested
Darzens Halogenation (SOCl2)

Same topic in other shifts

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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.