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Friday, 9 October

JEE Main Chemistry · Biomolecules

Carbohydrates in JEE Main

Carbohydrates (Chemistry, Biomolecules) came 20 times in 20 of the 42 JEE Main shifts Lumi analysed, across 15 distinct ideas. 11 of them came in 2024–26; it was last asked in 2026.

Questions
20
in 20 shifts
Ideas asked
15
4 asked more than once
Numerical answer
0
0% of its questions
Pattern
Asked most years
last asked 2026
Questions each year
0361’174’201’212’221’233’242’256’26

In the shifts Lumi analysed for each year.

Difficulty and format
Easy 5Medium 11Hard 4

Format

  • Single correct9 Q
  • Diagram based5 Q
  • Two statements3 Q
  • Other2 Q
  • Match the list1 Q
Ideas inside the topic
15 ideas
Where it sits

Part of Biomolecules, which had 50 questions in all. Carbohydrates accounts for 40% of them. In Lumi's JEE taxonomy it belongs to Organic Chemistry.

Every question

All 20 Carbohydrates questions

Newest first, each with its options and official answer.

  1. 4 Apr 2026, Shift 1 · Q68Given below are two statements: Statement I: The structure of Maltose is given below: [structure of maltose: two glucopyranose rings…EasyTwo statementsHas a figure
  2. 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
  3. 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
  4. 5 Apr 2026, Shift 2 · Q69Given below are two statements : Statement I : [figure: two ring (pyranose) structures, each with CH2_2-OH, ring O, H, OH and H…MediumTwo statementsHas a figure
  5. 6 Apr 2026, Shift 2 · Q69Consider the following reactions. Total number of electrons in the π\pi bonds and lone pair of electrons in the product (X) is : [figure:…HardSingle correctHas a figure
  6. 8 Apr 2026, Shift 2 · Q69The incorrect statement from the following with respect to carbohydrates is :EasySingle correct
  7. 3 Apr 2025, Shift 1 · Q70Which of the following is the correct structure of L−-Fructose?MediumDiagram basedHas a figure
  8. 7 Apr 2025, Shift 1 · Q70Given below are two statements: Statement I: D-(+)-glucose + D-(+) fructose →−H2O\xrightarrow{-H_2O} Sucrose sucrose…MediumTwo statements
  9. 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
  10. 9 Apr 2024, Shift 2 · Q80The incorrect statement about Glucose is :EasySingle correct
  11. 31 Jan 2024, Shift 1 · Q79Match 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.…MediumMatch the list
  12. 11 Apr 2023, Shift 1 · Q79L-isomer of tetrose X (C4H8O4\mathrm{C_4H_8O_4}) gives positive Schiff's test and has two chiral carbons. On acetylation, 'X' yields…HardDiagram basedHas a figure
  13. 28 Jul 2022, Shift 1 · Q78For the below given cyclic hemiacetal (X), the correct pyranose structure is :HardDiagram basedHas a figure
  14. 24 Jun 2022, Shift 1 · Q78A polysaccharide 'X' on boiling with dil H2SO4\mathrm{H_2SO_4} at 393 K under 2-3 atm pressure yields 'Y'. 'Y' on treatment with bromine…EasySingle correct
  15. 18 Mar 2021, Shift 1 · Q49A non-reducing sugar "A" hydrolyses to give two reducing mono saccharides. Sugar A is :EasySingle correct
  16. 8 Jan 2020, Shift 1 · Q42Which of the following statement is not true for glucose ?MediumSingle correct
  17. 9 Jan 2020, Shift 2 · Q41A, B and C are three biomolecules. The results of the tests performed on them are given below : | | Molisch's Test | Barfoed Test | Biuret…MediumSingle correct
  18. 2 Sep 2020, Shift 1 · Q45Consider the following reactions : (i) Glucose + ROH →dry HCl\xrightarrow{\text{dry HCl}} Acetal…MediumOther
  19. 6 Sep 2020, Shift 2 · Q26Which one of the following statements is not true ?MediumSingle correct
  20. 2 Apr 2017 (offline) · Q57Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution ?HardSingle correctHas a figure