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JEE Advanced Biomolecules and Polymers questions with solutions

Carbohydrates, amino acids, peptides, proteins, nucleic acids and addition and condensation polymers. 8 questions from our 2017–2025 JEE Advanced pattern papers, from the Class 12 Chemistry syllabus. Each has the answer and a full solution.

Also practise: Biomolecules and Polymers for JEE Main

JEE Advanced 2025

Methyl α-D-glucopyranoside (C7H14O6) is treated with excess periodic acid, HIO4. In this reaction only cleavage of vicinal diols occurs and the ring…JEE Advanced 2025 Paper 2 · hard

JEE Advanced 2023

Among the following compounds, how many are reducing sugars, that is, give a positive Tollens' test: sucrose, maltose, lactose, trehalose, methyl…JEE Advanced 2023 Paper 2 · medium
Among the following polymers, how many are formed by condensation polymerisation: nylon-6,6, Dacron, Bakelite, PVC, Teflon, Buna-S, neoprene, PHBV…JEE Advanced 2023 Paper 2 · easy

JEE Advanced 2022

A sample of a synthetic polymer contains two fractions of different chain lengths: 60% by mass of chains of molar mass 20000 g mol^-1 and 40% by mass…JEE Advanced 2022 Paper 1 · medium
(Take pKa1, pKa2 for glycine as 2.34 and 9.60; for glutamic acid as 2.19 (α-COOH), 4.25 (side-chain COOH) and 9.67; for lysine as 2.18, 8.95…JEE Advanced 2022 Paper 1 · hard

JEE Advanced 2021

(s) about biomolecules.JEE Advanced 2021 Paper 1 · easy

JEE Advanced 2019

(s) about carbohydrates and polymers.JEE Advanced 2019 Paper 1 · medium

JEE Advanced 2017

Nylon-6,6 is made by step-growth polymerisation of hexane-1,6-diamine and hexanedioic acid, except that the diamine is used in a 2.0% molar excess…JEE Advanced 2017 Paper 2 · hard

Other Chemistry topics

Alcohols, Phenols, Ethers and Haloalkanes 11 Atomic Structure 9 Carbonyl Compounds, Carboxylic Acids and Amines 20 Chemical Bonding and Molecular Structure 17 Chemical Equilibrium 12 Chemical Kinetics 24 Chemical Thermodynamics 21 Coordination Compounds 23 Electrochemistry 22 General Organic Chemistry and Isomerism 37 Hydrocarbons 12 Ionic Equilibrium 20 Mole Concept and Stoichiometry 6 Qualitative and Practical Chemistry 7 Redox Reactions and Titrations 15 Solutions, Solid State and Surface Chemistry 26 d- and f-Block Elements and Metallurgy 11 s-Block, p-Block Elements and Hydrogen 29