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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceDiagram basedEasyRecall

JEE Main 17 March 2021, Shift 1, Chemistry Q44

Question 44 of 90 in this shift, Chemistry question 14 of 30, Section A.

[reaction drawn: see figure_note] The above reaction requires which of the following reaction conditions ?

The figure, in words

Benzene ring bearing Cl, plus NaOH, arrow, product benzene ring bearing O- Na+ (O with minus sign, Na with plus sign).
  1. (1)623 K, Cu, 300 atm
  2. (2)573 K, Cu, 300 atm
  3. (3)623 K, 300 atmOfficial answer
  4. (4)573 K, 300 atm

Official answer

Option 3

NTA final key.

Chapter
Haloalkanes and Haloarenes
Topic
Alcohols and Phenols
Idea tested
Dow Process for Phenol

Same idea in other shifts

Asked 3× in all
  1. 5 Apr 2024, Shift 1 · Q78Identify compound (Z) in the following reaction sequence. chlorobenzene…EasyDiagram basedHas a figure
  2. 5 Apr 2024, Shift 2 · Q76Which one of the following reactions is NOT possible ?MediumDiagram basedHas a figure

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.