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Friday, 9 October

JEE Main 2026 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 5 April 2026, Shift 2, Chemistry Q69

Question 69 of 75 in this shift, Chemistry question 19 of 25, Section A.

Given below are two statements : Statement I : [figure: two ring (pyranose) structures, each with CH2_2-OH, ring O, H, OH and H substituents, differing in the configuration at the carbon next to the ring O (anomeric carbon)] are two anomers of D-(+)-glucose. Statement II : The open chain forms of D-glucose and D- fructose contain three similar chiral carbons at C3\mathrm{C_3}, C4\mathrm{C_4} and C5\mathrm{C_5}. In the light of the above statements, choose the correct answer from the options given below :

The figure, in words

Statement I shows two pyranose ring drawings joined by 'and'. Each has CH2-OH at the top, ring O at top right, and H/OH substituents around the ring. Left structure: H and H on top-left, H next to O on the right, OH, H, HO, H, OH, OH around the lower edge. Right structure: same ring but with OH next to the ring O at top right and H below it (anomeric carbon configuration differs).
  1. (1)Both Statement I and Statement II are trueOfficial answer
  2. (2)Both Statement I and Statement II are false
  3. (3)Statement I is true but Statement II is false
  4. (4)Statement I is false but Statement II is true

Official answer

Option 1

NTA final key.

Chapter
Biomolecules
Topic
Carbohydrates
Idea tested
Anomers and Epimers

Same idea in other shifts

Asked 2× in all
  1. 5 Apr 2026, Shift 1 · Q69Identify the correct statements. A. Glucose exists in two anomeric forms. B. Anomers of glucose differ in configuration at C-1 in cyclic…MediumOther

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 42 of the 174 JEE Main shifts held from 2017 to 2026.