Carbohydrates & Biomolecules has 154 questions in JEE Main papers from 2020 to 2026, about 22 per year across all shifts. The free PDF has 141 of them, each with its answer. The most asked topic is Carbohydrates (66 questions), followed by Amino Acids and Proteins (55) and Nucleic Acids (13).
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2 of this chapter's questions came back in a later paper (2021–2026). See the most repeated.
Carbohydrates & Biomolecules had about 1 question per shift in recent JEE Main papers (2024–26). Most asked topic: Carbohydrates. About 21 questions in the 2026 papers.
It came up in almost every 2024–26 shift in our bank (about 56 shifts). Question types in 2020–2026: about 133 MCQs and about 21 numerical.
| Year | Questions | Per shift | MCQ | Numerical |
|---|---|---|---|---|
| 2026 | 21 | 1.1 | 21 | 0 |
| 2025 | 21 | 1.1 | 20 | 1 |
| 2024 | 21 | 1.1 | 15 | 6 |
| 2023 | 23 | 1.0 | 19 | 4 |
| 2022 | 24 | 1.0 | 20 | 4 |
| 2021 | 30 | 1.2 | 28 | 2 |
| 2020 | 14 | 0.9 | 10 | 4 |
| 2020–2026 | 154 | 1.0 | 133 | 21 |
| Topic | Questions |
|---|---|
| Carbohydrates | 66 |
| Amino Acids and Proteins | 55 |
| Nucleic Acids | 13 |
| Vitamins | 13 |
| Enzymes | 7 |
Counted from PrepWiser's question bank of JEE Main papers, 2020–2026. Per shift = questions that year ÷ shifts in our bank. Updated .
Two free sheets, made from the past JEE Main questions on this chapter.
The link opens this page: the free PDF with 141 questions and answers, and online practice. Nobody needs to log in.
| Year | Asked | In PDF | |
|---|---|---|---|
| 2026 | 21 | 21 | |
| 2025 | 21 | 19 | |
| 2024 | 21 | 20 | |
| 2023 | 23 | 20 | |
| 2022 | 24 | 21 | |
| 2021 | 30 | 30 | |
| 2020 | 14 | 10 |
in the free PDF asked, not in the PDFThe PDF only has questions we can print in full with a checked answer, so it holds 141 of the 154 asked.
How many Carbohydrates & Biomolecules questions each topic had in every JEE Main year (all shifts), counting every question asked, including ones not in the PDF. Darker cells mean more questions.
| Topic | Asked | Share | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 |
|---|---|---|---|---|---|---|---|---|---|
| Carbohydrates | 66 | 43% | 9 | 9 | 7 | 7 | 12 | 13 | 9 |
| Amino Acids and Proteins | 55 | 36% | 9 | 8 | 8 | 12 | 6 | 8 | 4 |
| Nucleic Acids | 13 | 8% | 1 | 2 | 4 | · | 3 | 3 | · |
| Vitamins | 13 | 8% | 2 | 2 | 1 | 2 | 1 | 4 | 1 |
| Enzymes | 7 | 5% | · | · | 1 | 2 | 2 | 2 | · |
| All topics | 154 | 100% | 21 | 21 | 21 | 23 | 24 | 30 | 14 |
Swipe the table sideways for older years.
The 12 newest of the 21 JEE Main 2026 Carbohydrates & Biomolecules questions in the free PDF, latest shift first.
JEE Main 2026 · 8 Apr · Shift 2 · Amino Acids and Proteins
Which of the following amino acid will give violet coloured complex with neutral ferric chloride solution?
JEE Main 2026 · 8 Apr · Shift 2 · Carbohydrates
The incorrect statement from the following with respect to carbohydrates is :
JEE Main 2026 · 6 Apr · Shift 1 · Vitamins
| List-I Deficiency Disease |
List-I Vitamin |
||
|---|---|---|---|
| A. | Scurvy | I. | Pyridoxine |
| B. | Convulsions | II. | Vitamin A |
| C. | Cheilosis | III. | Ascorbic Acid |
| D. | Xerophthalmia | IV. | Riboflavin |
Choose the correct answer from the options given below :
JEE Main 2026 · 6 Apr · Shift 1 · Amino Acids and Proteins
| List-II Positive reaction/Test for functional group present in side chain of amino acid |
|||
|---|---|---|---|
| A. | Glutamine | I. | Hinsberg's test |
| B. | Lysine | II. | Neutral test |
| C. | Tyrosine | III. | Ceric ammonium nitrate test |
| D. | Serine | IV. | Hoffman bromamide degradation |
Choose the correct answer from the options given below :
JEE Main 2026 · 5 Apr · Shift 1 · Carbohydrates
Identify the correct statements.
A. Glucose exists in two anomeric forms.
B. Anomers of glucose differ in configuration at in cyclic hemiacetal structure.
C. Melting point of - anomer of glucose is greater than - anomer.
D. Specific rotation of - anomer is while for - anomer is
E. and - anomers of glucose are prepared by crystallization of saturated glucose solution at 303 K and 371 K respectively.
Choose the correct answer from the options given below :
JEE Main 2026 · 5 Apr · Shift 2 · Amino Acids and Proteins
Identify the incorrect statement about tertiary structure of proteins.
JEE Main 2026 · 5 Apr · Shift 2 · Carbohydrates
and 
are two anomers of D-(+)-glucode.
Statement II : The open chain forms of D-glucose and D- fructose contain three similar chiral carbons at and .
In the light of the above statements, choose the correct answer from the options given below :
JEE Main 2026 · 4 Apr · Shift 2 · Carbohydrates
A D-aldotetrose on oxidation with concentrated resulted in optically inactive dicarboxylic acid. The structure of the D-aldotetrose is :
JEE Main 2026 · 4 Apr · Shift 1 · Carbohydrates
Given below are two statements :
Statement I : The structure of Maltose is given below:
Statement II : The structure of Lactose is given below :
In the light of the above statements, choose the correct answer from the options given below :
JEE Main 2026 · 4 Apr · Shift 1 · Amino Acids and Proteins
Match the List-I with List-II
| List-I Name of amino acid | List-II One letter symbol/type |
|---|---|
| A. Arginine | I. D/Non-essential |
| B. Aspartic acid | II. R/Essential |
| C. Lysine | III. E/Non-essential |
| D. Glutamic acid | IV. K/Essential |
Choose the correct answer from the options given below :
JEE Main 2026 · 2 Apr · Shift 1 · Vitamins
Match List - I with List - II.
| List - I Vitamin |
List - II Name |
||
|---|---|---|---|
| A | Vitamin B1 | I | Pyridoxine |
| B | Vitamin B2 | II | Ascorbic acid |
| C | Vitamin B6 | III | Thiamine |
| D | Vitamin C | IV | Riboflavin |
Choose the correct answer from the options given below:
JEE Main 2026 · 2 Apr · Shift 2 · Amino Acids and Proteins
Identify the correct pair having amino acid (A) and the hormone (B) that is iodinated derivative of the amino acid (A).
(T and Y represent one letter code for amino acids)
Practise the 2026 Carbohydrates & Biomolecules questions online
JEE Main 2026 · 23 Jan · Shift 2 · Nucleic Acids
Both human DNA and RNA are chiral molecules. The chirality in DNA and RNA arises due to the presence of
L-sugar component
D-sugar component
Chiral phosphate unit
Base unit
Answer: (B)
JEE Main 2025 · 3 Apr · Shift 2 · Vitamins
Fat soluble vitamins are:
A. Vitamin
B. Vitamin C
C. Vitamin E
D. Vitamin B 12
E. Vitamin K
Choose the correct answer from the options given below:
Answer: (C)
JEE Main 2024 · 6 Apr · Shift 2 · Enzymes
The incorrect statements regarding enzymes are :
(A) Enzymes are biocatalysts.
(B) Enzymes are non-specific and can catalyse different kinds of reactions.
(C) Most Enzymes are globular proteins.
(D) Enzyme - oxidase catalyses the hydrolysis of maltose into glucose.
Choose the correct answer from the option given below :
Answer: (A)
The free PDF above has all 141 questions grouped by topic, with an answer key.
Answer Carbohydrates & Biomolecules PYQs in the browser, get each one checked instantly and open the step-by-step solution where there is one.
Practise Carbohydrates & Biomolecules online154 questions from 2020 to 2026, about 22 per year. In 2026 it had 21. The free PDF has 141 of them.
By past papers: Carbohydrates (43%), Amino Acids and Proteins (36%) and Nucleic Acids (8%) of all Carbohydrates & Biomolecules questions.
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