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Chemistry - Biomolecules

Practise 51 NTA Abhyas (JEE Main) questions on Biomolecules. Each question shows a quick preview so you can jump straight to the topic you want to revise.

Biomolecules has been asked in 0 of the 24 years of NTA Abhyas (JEE Main) papers analysed (2002–2025), with 51 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2025, with 0 questions that year. In the last three years (2023–2025) it had 0 questions across 63 papers, about 0 per paper.

All of the chapter's questions come from a single topic, Uncategorized.

  1. 1Study the structure of maltose and mark the incorrect statement.
  2. 2Epimers of glucose is
  3. 3Consider the following The above process in which α and β form remain in equilibrium with acyclic form and a change in optical rotation is o
  4. 4Hydrolysis of sucrose gives
  5. 5Which of the following disaccharide will not reduce Tollen's reagent?
  6. 6Adenine is one of the two purine bases involved in the formation of nucleotides of the nucleic acids. The molecular formula of adenine is C
  7. 7A nucleoside on hydrolysis gives
  8. 8Which of the following statement is correct?
  9. 9The helical structure of protein is stabilized by
  10. 10The two forms of D-glucopyranose obtained from the solution of D-glucose are called
  11. 11Which among the following statements are true for glycine? 1 . It exists in crsytalline form 2 . It is optically active 3 . It is soluble in
  12. 12Which is the correct relation between glucose and mannose?
  13. 13How many - O H groups are present in one molecule of sucrose?
  14. 14Which of the following statements is not correct?
  15. 15What is the relationship between the given structures (look at the arrows)?
  16. 16How many acidic group is present in given amino acid
  17. 17A terapeptide has − COOH group on alanine. This produces glycine (Gly), valine (Val). Phenyl alamine (Phe) and alanine (Ala) on complete hyd
  18. 18If number of aldose, ketose, furanose and pyranose units present in maltose are p, q, r, s respectively. Find the value of p + q + r + s
  19. 19Glucose does not react with:
  20. 20The sequence of an mRNA molecule produced from a DNA template strand with the composition 5'-AGCTACACT-3' is
  21. 21Pick out the correct statement.
  22. 22The number of chiral carbons in β -D(+)-glucose is
  23. 23Reduction of hexose A (molecular formula C 6 H 12 O 6 ) with sodium borohydride gives compound B and C. Compound B is optically inactive, wh
  24. 24The open-chain glucose on oxidation with H I O 4 gives
  25. 25The pK a values of ionisable groups in lysine are 2.18,8.95 and 10.79 respectively. Find isoelectric point of lysine.
  26. 26The change in optical rotation of a freshly prepared solution of sugar is known as
  27. 27Identify the non-reducing sugar.
  28. 28Which of the following amino acids is basic in nature?
  29. 29Glucose on reaction with B r 2 water gives
  30. 30Melamine is used in formation of melamine formaldehyde resin. How many nitrogen atoms are present in melamine unit.
  31. 31Pick out incorrect statement
  32. 32D-Glucose and D-mannose are:
  33. 33Which of the following structures is the correct Haworth representation of D-aldose?
  34. 34The open-chain glucose, (an aldohexose) and fructose (a 2-oxohexose) have X and Y chiral carbons respectively. Find the sum of X + Y.
  35. 35A tetrapeptide has -COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on complete hy
  36. 36Polystyrene, Dacron and Orlon are classified respectively as
  37. 37Which carbon atom of deoxyribose sugar in DNA does not contain - C | | - O H bond?
  38. 38Among the given amino acids, the basic essential amino acid is:
  39. 39An aldohexose (e.g., glucose) and 2-oxohexose (e.g., fructose) can be distinguished with the help of
  40. 40D − glucose → Tollen ′ s reagent A ; D − glucose → Br 2 -water B A and B are:
  41. 41Which of the following treatment will convert starch directly into glucose?
  42. 42An amino acid having isoelectric point below 7 (at 25 o C ), when kept in a alkaline medium present in an electric field will show migration
  43. 43What will be the nature of existence of an amino acid (containing one amino and one carboxylic acid group) in solution of pH p K a 1 ?
  44. 44Which of the following reactions and facts of D -glucose cannot be explained by its open chain structure? (i) Despite having the aldehyde gr
  45. 45The structure of D-(+)-glucose is The structure of L-(-)-glucose is
  46. 46Maltose on hydrolysis gives
  47. 47RNA and DNA are chiral molecules, their chirality is due to
  48. 48Amylopectin is composed of
  49. 49The number of essential amino acids among the following is ________ Histidine, Glycine, Valine, Alanine, Aspartic acid, Lysine, Methionine.
  50. 50The number of peptide bond(s) in the following molecule is/are

Frequently Asked Questions

1.How many questions are available for Biomolecules?

This chapter includes 51 NTA Abhyas (JEE Main) questions.

2.Are these questions only from NTA Abhyas (JEE Main), or from other exams too?

These are NTA Abhyas (JEE Main) questions specifically for the Biomolecules chapter. Questions from other exams like JEE Main or JEE Advanced are organised separately under their respective exam sections.

3.What is the difficulty level of Biomolecules questions in NTA Abhyas (JEE Main)?

Of the 51 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2025 had the most, with 0 questions.

4.Which topics in Biomolecules should I focus on?

All of this chapter's questions come from a single topic: Uncategorized.