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Friday, 9 October

JEE Main 2024 · ChemistryMultiple choiceMatch the listMediumRecall

JEE Main 31 January 2024, Shift 1, Chemistry Q79

Question 79 of 90 in this shift, Chemistry question 19 of 30, Section A.

Match List I with List II LIST I A. Glucose/NaHCO3\mathrm{NaHCO_3}/Δ\Delta B. Glucose/HNO3\mathrm{HNO_3} C. Glucose/HI/Δ\Delta D. Glucose/Bromine water LIST II I. Gluconic acid II. No reaction III. n-hexane IV. Saccharic acid Choose the correct answer from the options given below:
  1. (1)A-I, B-IV, C-III, D-II
  2. (2)A-IV, B-I, C-III, D-II
  3. (3)A-III, B-II, C-I, D-IV
  4. (4)A-II, B-IV, C-III, D-IOfficial answer

Official answer

Option 4

NTA final key.

Chapter
Biomolecules
Topic
Carbohydrates
Idea tested
Selective Oxidation of Monosaccharides

Same idea in other shifts

Asked 3× in all
  1. 4 Apr 2026, Shift 2 · Q68A D-aldotetrose on oxidation with concentrated HNO3\mathrm{HNO_3} resulted in optically inactive dicarboxylic acid. The structure of the…MediumDiagram basedHas a figure
  2. 8 Apr 2024, Shift 1 · Q80The incorrect statement regarding the given structure is [figure: Fischer projection: CHO at top; then H-C-OH, HO-C-H, H-C-OH, H-C-OH;…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 42 of the 174 JEE Main shifts held from 2017 to 2026.