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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 27 June 2022, Shift 1, Chemistry Q77

Question 77 of 90 in this shift, Chemistry question 17 of 30, Section A.

Given below are two statements : Statement - I : In Hofmann degradation reaction, the migration of only an alkyl group takes place from carbonyl carbon of the amide to the nitrogen atom. Statement - II : The group is migrated in Hofmann degradation reaction to electron deficient atom. In the light of the above statements, choose the most appropriate answer from the options given below :
  1. (1)Both Statement I and Statement II are correct.
  2. (2)Both Statement I and Statement II are incorrect.
  3. (3)Statement I is correct but Statement II is incorrect.
  4. (4)Statement I is incorrect but Statement II is correct.Official answer

Official answer

Option 4

NTA final key.

Chapter
Amines
Topic
Amines
Idea tested
Hofmann Bromamide Degradation

Same idea in other shifts

Asked 11× in all
  1. 5 Apr 2026, Shift 2 · Q67Given below are two statements : Statement I : Heating benzamide with bromine in an ethanolic solution of sodium hydroxide will give…MediumTwo statements
  2. 8 Apr 2026, Shift 2 · Q68Which statements are True ? A. In Hoffmann bromamide degradation, 4 moles of NaOH and 2 moles of Br2\mathrm{Br_2} are consumed per mole of…MediumOther
  3. 30 Jan 2024, Shift 1 · Q77The final product A, formed in the following multistep reaction sequence is : [Scheme: bromobenzene…MediumDiagram basedHas a figure
  4. 6 Apr 2023, Shift 1 · Q76The major product formed in the following reaction is [Reactant: benzene ring bearing ortho CH2CONH2\mathrm{CH_2CONH_2} and COOCH3\mathrm{COOCH_3}…HardDiagram basedHas a figure
  5. 29 Jul 2022, Shift 1 · Q76[figure: 'A' (C8H6Cl2O\mathrm{C_8H_6Cl_2O}) →NH3\xrightarrow{\mathrm{NH_3}} C8H8ClNO\mathrm{C_8H_8ClNO} →NaOHBr2\xrightarrow[\mathrm{NaOH}]{\mathrm{Br_2}} a…HardDiagram basedHas a figure
  6. 30 Jul 2022, Shift 2 · Q46Which one of the following compounds can be prepared in good yield by Hoffmann bromamide degradation reaction?EasyDiagram basedHas a figure
  7. 25 Jun 2022, Shift 1 · Q78The reaction of R−C(=O)−NH2\mathrm{R-C(=O)-NH_2} with bromine and KOH gives RNH2\mathrm{RNH_2} as the end product. Which one of the following is the…EasySingle correct
  8. 27 Aug 2021, Shift 1 · Q46The major product of the following reaction is : CH3−CH−CH2−CH2−C(=O)−Cl\mathrm{CH_3-CH-CH_2-CH_2-C(=O)-Cl} [CH3 drawn above the CH, O drawn above the C]…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. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.