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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceDiagram basedEasyApplication

JEE Main 15 April 2023, Shift 1, Chemistry Q74

Question 74 of 90 in this shift, Chemistry question 14 of 30, Section A.

The major product formed in the Friedel-Craft acylation of chlorobenzene is

The figure, in words

Options are substituted benzene ring structures: (1) m-chloroacetophenone, (2) p-chloroacetophenone, (3) 4-chloro-1,2-diacetylbenzene (acetyls drawn as C(=O)CH3), (4) 1-chloro-2,3-diacetylbenzene (acetyls drawn as COCH3).
  1. (1)[figure: benzene ring with Cl and COCH3\mathrm{COCH_3} meta to each other (3-chloroacetophenone)]
  2. (2)[figure: benzene ring with Cl and COCH3\mathrm{COCH_3} para to each other (4-chloroacetophenone)]Official answer
  3. (3)[figure: benzene ring with Cl and two adjacent COCH3\mathrm{COCH_3} groups, Cl meta to one acetyl and para to the other (4-chloro-1,2-diacetylbenzene)]
  4. (4)[figure: benzene ring with Cl and two COCH3\mathrm{COCH_3} groups on the next two adjacent carbons, i.e. 1-chloro-2,3-diacetylbenzene]

Official answer

Option 2

NTA final key.

Chapter
Haloalkanes and Haloarenes
Topic
Aromatic Hydrocarbons
Idea tested
Halogen Directing Exception

Same topic in other shifts

All Aromatic Hydrocarbons questions
  1. 2 Apr 2026, Shift 1 · Q66For the given molecule, "xx", the preferred site for the attack of the electrophile is :MediumDiagram basedHas a figure
  2. 4 Apr 2026, Shift 1 · Q72Consider the following sequence of reactions to give the major product (X) benzene…MediumNumerical valueHas a figure
  3. 4 Apr 2026, Shift 2 · Q56Match the LIST-I with LIST-II List-I (Reaction): A. Williamson Synthesis B. Friedel Craft Reaction C. Bromination of vinyl benzene D.…EasyMatch the list
  4. 5 Apr 2026, Shift 1 · Q65For the following Friedel Craft's alkylation reaction, which of the statements are correct? [figure: benzene + n-propyl chloride…MediumOtherHas a figure
  5. 8 Apr 2026, Shift 2 · Q64The total number of aromatic compounds/species from the following is [figures: p-benzoquinone; tropylium cation (cycloheptatrienyl…MediumOtherHas a figure
  6. 8 Apr 2026, Shift 2 · Q72'xx' is the product which is obtained from benzene by reacting it with carbon monoxide and hydrogen chloride in the presence of cuprous…MediumNumerical 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.