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Chemistry - Chemical Bonding and Molecular Structure

Practise 312 JEE Main previous year questions on Chemical Bonding and Molecular Structure, compiled from papers spanning 2002 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty JEE Main tests.

Chemical Bonding and Molecular Structure has been asked in 24 of the 25 years of JEE Main papers analysed (2002–2026), with 312 questions in all. 38% of them were easy, 54% moderate and 7% tough. Most of its questions came from 2024, with 48 questions that year. In the last three years (2024–2026) it had 83 questions across 49 papers, about 1.7 per paper.

The chapter's 10 topics are not weighted equally: Hybridisation and VSEPR Theory (123 questions, 39%), Molecular Orbital Theory (83 questions, 27%), and Covalent and Co-ordinate Bonding (27 questions, 9%) have been asked the most. Hybridisation and VSEPR Theory has also led over the last five years, with 69 questions. Hybridisation and VSEPR Theory has produced the most tough questions (8).

  1. 1Bromine trifluoride autoionizes to form and . The shapes of the cation and anion are respectively ________, and ________.08 Apr, 2026 (E)Hybridisation and VSEPR Theory
  2. 2The pairs among , , , and that do not have similar Lewis dot structure are06 Apr, 2026 (M)Covalent and Co-ordinate Bonding
  3. 3Given below are two statements : Statement I : The number of compounds among SO , SO , SF , SF and H S in which sulphur does not obey the Oc06 Apr, 2026 (E)Covalent and Co-ordinate Bonding
  4. 4Given below are two statements : Statement I : F O _4 _4 _4$ are ionic in nature. In the light of the above statements, choose the correct a06 Apr, 2026 (E)Hybridisation and VSEPR Theory
  5. 5Consider the following species: BrF , XeF , BF , ICl , XeF , SF , NH , ClF , XeF , ICl Number of species having sp d hybridized central atom05 Apr, 2026 (M)Hybridisation and VSEPR Theory
  6. 6The covalent radii of atoms A and B are and , respectively. The covalent bond length and total length of AB molecule are respectively05 Apr, 2026 (E)Covalent and Co-ordinate Bonding
  7. 7According to Lewis theory, the total number of bond-pairs and lone pair of electrons around the central atom of ion is _____.04 Apr, 2026 (M)Hybridisation and VSEPR Theory
  8. 8Which of the following pictorial diagram most correctly represents the ( -antibonding) molecular orbital between two atoms if the internucle04 Apr, 2026 (E)Molecular Orbital Theory
  9. 9Given below are two statements : Statement (I) : The correct sequence of bond lengths in the following species is : O_2 > O_2^+ > O_2^- > O_02 Apr, 2026 (M)Molecular Orbital Theory
  10. 10is isostructural with: A. B. C. D. E. Choose the correct answer from the options given below:02 Apr, 2026 (E)Hybridisation and VSEPR Theory
  11. 11Given below are two statements: Statement I : The number of species among and , that have unequal bond lengths is two. Here, E is the centra28 Jan, 2026 (M)Molecular Orbital Theory
  12. 12Match List - I with List - II according to shape. \( {array}{llll} & {List-I} & & {List-II} \\ A. & {XeO_3} & I. & {BrF_5} \\ B. & {XeF_2} &28 Jan, 2026 (E)Hybridisation and VSEPR Theory
  13. 13Among the following, the CORRECT combinations are A. -shaped (sp B. Square pyramidal C. Pentagonal bipyramidal D. Square planar Choose the c24 Jan, 2026 (M)Hybridisation and VSEPR Theory
  14. 14Given below are statements about some molecules/ions. Identify the CORRECT statements. A. The dipole moment value of is higher than that of 24 Jan, 2026 (M)Dipole moment
  15. 15Pair of species among the following having same bond order as well as paramagnetic character will be-24 Jan, 2026 (E)Molecular Orbital Theory
  16. 16Identify the molecule with maximum number of lone pairs of electrons (obtained using Lewis dot structure) among and . Choose the correct bon23 Jan, 2026 (M)Hybridisation and VSEPR Theory
  17. 17Which statements are NOT TRUE about ? A. It has a see-saw shape. B. Xe has 5 electron pairs in its valence shell in . C. The bond angle is c23 Jan, 2026 (E)Hybridisation and VSEPR Theory
  18. 18Two p-block elements X and Y form fluorides of the type . The fluoride compound is a Lewis acid and is a Lewis base. The hybridizations of t22 Jan, 2026 (M)Hybridisation and VSEPR Theory
  19. 19The formal charges on the atoms marked as (1) to (4) in the Lewis representation of molecule respectively are22 Jan, 2026 (M)Covalent and Co-ordinate Bonding
  20. 20Among and , identify the molecule with lowest dipole moment value. The number of lone pairs of electrons present on the central atom of the 22 Jan, 2026 (E)Dipole moment
  21. 21Given below are two statements : Statement I : The number of species among and , that have tetrahedral geometry is 3. Statement II : In the 21 Jan, 2026 (M)Hybridisation and VSEPR Theory
  22. 22Given below are two statements: Statement I : The correct order in terms of bond dissociation enthalpy is . Statement II : The correct trend21 Jan, 2026 (E)Polarization
  23. 23The correct increasing order of and bonds in terms of covalent bond length is:21 Jan, 2026 (E)Covalent and Co-ordinate Bonding
  24. 24Match the LIST-I with LIST-II . Choose the correct answer from the options given below :07 Apr, 2025 (M)Hybridisation and VSEPR Theory
  25. 25In and the hybridizations at the central atom are respectively :07 Apr, 2025 (E)Hybridisation and VSEPR Theory
  26. 26Which of the following molecules(s) show/s paramagnetic behavior? (A) (B) (C) (D) (E) Choose the correct answer from the options given below04 Apr, 2025 (M)Molecular Orbital Theory
  27. 27Given below are two statements: Statement (I) : for , all three possible structures may be drawn as follows. Statement (II) : Structure III 04 Apr, 2025 (E)Hybridisation and VSEPR Theory
  28. 28A metal complex with a formula is involved in hybridisation. It upon reaction with excess of solution gives ' x ' moles of AgCl. Consider ' 04 Apr, 2025 (E)Hybridisation and VSEPR Theory
  29. 29Among \( {SO}_2, {NF}_3, {NH}_3, {XeF}_2, {ClF}_3\) and \( {SF}_4\), the hybridization of the molecule with non-zero dipole moment and highe02 Apr, 2025 (M)Hybridisation and VSEPR Theory
  30. 30A molecule with the formula \( {AX}_4 {Y}\) has all it's elements from p-block. Element A is rarest, monoatomic, non-radioactive from its gr02 Apr, 2025 (M)Hybridisation and VSEPR Theory
  31. 31In 3, 3-dimethylhex-1-ene-4-yne, there are _______ , _______ and _______ sp hybridised carbon atoms respectively :02 Apr, 2025 (E)Hybridisation and VSEPR Theory
  32. 32Which among the following molecules is (a) involved in hybridization, (b) has different bond lengths and (c) has lone pair of electrons on t02 Apr, 2025 (E)Hybridisation and VSEPR Theory
  33. 33The correct option with order of melting points of the pairs \(( {Mn}, {Fe}),( {Tc}, {Ru})\) and \(( {Re}, {Os})\) is :29 Jan, 2025 (M)Properties of ionic compounds
  34. 34The sum of sigma \(( )\) and pi \(( )\) bonds in Hex-1,3-dien-5-yne is _______.29 Jan, 2025 (M)Covalent and Co-ordinate Bonding
  35. 35Total number of sigma ( ) and bonds respectively present in hex-1-en-4-yne are :29 Jan, 2025 (E)Covalent and Co-ordinate Bonding
  36. 36The molecules having square pyramidal geometry are28 Jan, 2025 (M)Hybridisation and VSEPR Theory
  37. 37Total number of molecules/species from following which will be paramagnetic is ______28 Jan, 2025 (E)Molecular Orbital Theory
  38. 38Which of the following statement is true with respect to and ? A. The central atoms of all the molecules are hybridized. B. The and angles i24 Jan, 2025 (M)Hybridisation and VSEPR Theory
  39. 39Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules 24 Jan, 2025 (M)Molecular Orbital Theory
  40. 40Given below are two statements : Statement (I): Experimentally determined oxygen-oxygen bond lengths in the are found to be same and the bon24 Jan, 2025 (E)Hybridisation and VSEPR Theory
  41. 41Given below are two statements : Statement (I) : The first ionization energy of Pb is greater than that of Sn . Statement (II) : The first i24 Jan, 2025 (E)Ionic bond
  42. 42In the given structure, number of sp and hybridized carbon atoms present respectively are :24 Jan, 2025 (E)Hybridisation and VSEPR Theory
  43. 43Match the LIST-I with LIST-II Choose the correct answer from the options given below:23 Jan, 2025 (M)Covalent and Co-ordinate Bonding
  44. 44The number of molecules/ions that show linear geometry among the following is ________22 Jan, 2025 (M)Hybridisation and VSEPR Theory
  45. 45Arrange the following compounds in increasing order of their dipole moment : and22 Jan, 2025 (E)Dipole moment
  46. 46In which one of the following pairs the central atoms exhibit \( {sp}^2\) hybridization ?09 Apr, 2024 (M)Hybridisation and VSEPR Theory
  47. 47The total number of species from the following in which one unpaired electron is present, is _______ \( {N}_2, {O}_2, {C}_2^{-}, {O}_2^{-}, 09 Apr, 2024 (M)Molecular Orbital Theory
  48. 48The correct increasing order for bond angles among \( {BF}_3, {PF}_3\) and \( {ClF}_3\) is :09 Apr, 2024 (E)Hybridisation and VSEPR Theory
  49. 49The incorrect statement regarding ethyne is09 Apr, 2024 (E)Hybridisation and VSEPR Theory
  50. 50Total number of electrons present in \( ( ^* )\) molecular orbitals of \( {O}_2, {O}_2{ }^{+}\) and \( {O}_2^{-}\) is _______.09 Apr, 2024 (E)Molecular Orbital Theory

Frequently Asked Questions

1.How many questions are available for Chemical Bonding and Molecular Structure?

This chapter includes 312 questions compiled from JEE Main papers spanning 2002 to 2026.

2.Are these questions only from JEE Main, or from other exams too?

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

3.Is Chemical Bonding and Molecular Structure an important chapter for JEE Main Chemistry?

Chemical Bonding and Molecular Structure has appeared in 24 of the 25 years of JEE Main papers covered here, with 312 questions across 178 papers - about 2 per paper it appears in.

4.What is the difficulty level of Chemical Bonding and Molecular Structure questions in JEE Main?

Of the 312 questions analysed for this chapter, 38% are easy, 54% moderate and 7% tough. 2024 had the most, with 48 questions.

5.Which topics in Chemical Bonding and Molecular Structure should I focus on?

These topics have carried the most weightage in Chemical Bonding and Molecular Structure:

  • Hybridisation and VSEPR Theory - 123 questions (39%)
  • Molecular Orbital Theory - 83 questions (27%)
  • Covalent and Co-ordinate Bonding - 27 questions (9%)
  • Hybridisation and VSEPR Theory has produced the most tough questions (8).
6.Is Chemical Bonding and Molecular Structure's weightage in JEE Main going up or down?

Across all 178 papers analysed, Chemical Bonding and Molecular Structure has averaged about 1.8 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 1.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.