Biomolecules – JEE Main Previous Year Questions (2014–2025)

All 8 JEE Main previous-year questions from Biomolecules (Chemistry), 2014–2025, taken from 8 papers. Practise them together in one test with the official marking and answer key, then review every answer.

▶ Practise all 8 questionsAll JEE Main chapters

Biomolecules questions by paper

Sample questions

• JEE Main 2025 22 Jan Shift 1
  Which of the following acids is a vitamin Options 1 Aspartic acid 2 Ascorbic acid 3 Saccharic acid 4 Adipic acid
• JEE Main 2025 22 Jan Shift 2
  dentify the number of structure from the following which can be correlated to D-glyceraldehyde CHO cHO cHO HO oH OH on HO OH HO HO on on on HO a ou OH cHO A Options…
• JEE Main 2019 8 Apr Shift 1
  Maltose on treatment with dilute HCI gives 1 D-Galactose 2 D-Glucose and D-Fructose 3 D-Fructose 4 D-Glucose
• JEE Main 2019 9 Jan Shift 1
  The increasing order of pKa of the following amino acids in aqueous solution is Gly Asp Lys Arg 1 Gly Asp Arg Lys 2 Asp Gly Lys Arg 3 Arg Lys Gly Asp 4 Asp Gly Arg Lys

Question text shown from the scanned paper; open the test to see each question exactly as printed.

More Chemistry chapters

• Some Basic Concepts of Chemistry 6
• Structure of Atom 7
• Classification of Elements and Periodicity 7
• Chemical Bonding and Molecular Structure 9
• States of Matter 3
• Thermodynamics 11
• Equilibrium 12
• Redox Reactions 4
• Hydrogen 5
• s-Block Elements 4
• p-Block Elements 13
• Organic Chemistry: Basic Principles 12
• Hydrocarbons 11
• Environmental Chemistry 5
• Solid State 6
• Solutions 9
• Electrochemistry 11
• Chemical Kinetics 8
• Surface Chemistry 5
• General Principles of Isolation of Elements 4
• d- and f-Block Elements 6
• Coordination Compounds 15
• Haloalkanes and Haloarenes 10
• Alcohols, Phenols and Ethers 7