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Saturday, 31 October

JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumApplication

JEE Main 1 February 2024, Shift 2, Chemistry Q89

Question 89 of 90 in this shift, Chemistry question 29 of 30, Section B.

Number of compounds which give reaction with Hinsberg's reagent is ________. [figure: eleven structures in three rows]

The figure, in words

Eleven structures: row 1: benzenediazonium chloride (C6H5N2+ Cl-), dibenzamide (C6H5CO-NH-COC6H5), aniline; row 2: N-phenylpiperidine, N-methylbenzylamine (C6H5CH2-NH-CH3), trimethylamine (N with three methyl groups), a diamine H2N-CH2CH2CH2-NH2 drawn as zigzag; row 3: piperidine (N-H), pyridine, propylamine (zigzag chain ending in NH2), urea (H2N-CO-NH2).

Official answer

5

NTA final key.

Chapter
Amines
Topic
Amines
Idea tested
Hinsberg Test

Same idea in other shifts

Asked 13× in all
  1. 8 Apr 2024, Shift 1 · Q90Number of amine compounds from the following giving solids which are soluble in NaOH upon reaction with Hinsberg's reagent is __________.…MediumNumerical valueHas a figure
  2. 8 Apr 2024, Shift 2 · Q79Given below are two statements : Statement (I) : All the following compounds react with p-toluenesulfonyl chloride. C6H5NH2\mathrm{C_6H_5NH_2}…MediumTwo statements
  3. 6 Apr 2023, Shift 1 · Q73Compound P (M.F. C14H13ON\mathrm{C_{14}H_{13}ON}; M.F. = MOLECULAR FORMULA) on treatment with HCl, Δ\Delta gives a Filter step: Residue Q and…HardDiagram basedHas a figure
  4. 27 Jul 2022, Shift 1 · Q80Match List I with List II. List I | List II A. Benzenesulphonyl chloride | I. Test for primary amines B. Hoffmann bromamide reaction | II.…MediumMatch the list
  5. 29 Jul 2022, Shift 2 · Q77The Hinsberg reagent isEasySingle correctHas a figure
  6. 26 Jun 2022, Shift 2 · Q77Which statement is NOT correct for p-toluenesulphonyl chloride?EasySingle correct
  7. 3 Aug 2021, Shift 1 · Q49Match List I with List II : List I : A. Hell-Volhard-Zelinsky reaction ; B. Hinsberg’s reagent ; C. Isocyanide test ; D. Hoffmann…EasyMatch the list
  8. 26 Feb 2021, Shift 1 · Q47An amine on reaction with benzenesulphonyl chloride produces a compound insoluble in alkaline solution. This amine can be prepared by…MediumSingle correctHas 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.