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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceDiagram basedMediumDiagram reading

JEE Main 27 August 2021, Shift 1, Chemistry Q48

Question 48 of 90 in this shift, Chemistry question 18 of 30, Section A.

[Four structures labelled (A), (B), (C) and (D) are drawn.] The correct statement about (A), (B), (C) and (D) is :

The figure, in words

Four structures drawn, labelled (A) to (D) as printed. (A): a multi-ring structure with a benzene ring bearing HO, a ring O, a ring N carrying CH3 (bold bonds), a ring C=C, and an OH on a hashed bond. (B): a benzene ring bearing Cl fused to a seven-membered ring containing N-CH3, C=O and C=N, with a phenyl ring on the C of the C=N. (C): a benzene ring bearing HO fused to a five-membered ring containing NH, with a CH2CH2NH2 chain on the ring carbon. (D): same multi-ring skeleton as (A) but with H3CO on the benzene ring in place of HO; OH on a hashed bond.
  1. (1)(A), (B) and (C) are narcotic analgesics
  2. (2)(B), (C) and (D) are tranquillizers
  3. (3)(A) and (D) are tranquillizers
  4. (4)(B) and (C) are tranquillizersOfficial answer

Official answer

Option 4

NTA final key.

Same idea in other shifts

Asked 2× in all
  1. 30 Jun 2022, Shift 1 · Q90How many of the following drugs belong to the tranquilizer class ___________ ? Veronal, Luminal, Propanal, SeconalEasyNumerical value

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.