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Chemistry - Chemical Bonding and Molecular Structure

Practise 43 BITSAT previous year questions on Chemical Bonding and Molecular Structure, compiled from papers spanning 2009 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty BITSAT tests.

Chemical Bonding and Molecular Structure has been asked in 15 of the 16 years of BITSAT papers analysed (2009–2024), with 43 questions in all. 42% of them were easy, 51% moderate and 7% tough. Most of its questions came from 2024, with 7 questions that year. In the last three years (2022–2024) it had 12 questions across 6 papers, about 2 per paper.

The chapter's 6 topics are not weighted equally: Hybridisation and VSEPR Theory (15 questions, 35%), Covalent and Co-ordinate Bonding (9 questions, 21%), and Molecular Orbital Theory (9 questions, 21%) have been asked the most. Hybridisation and VSEPR Theory has also led over the last five years, with 8 questions. Hybridisation and VSEPR Theory has produced the most tough questions (2).

  1. 1Identify the species having one -bond and maximum number of canonical forms from the following:2024 (Memory Based Paper 1)Covalent and Co-ordinate Bonding
  2. 2hybridisation is not displayed by :2024 (Memory Based Paper 1)Hybridisation and VSEPR Theory
  3. 3Which one of the following compounds is having maximum 'lone pair-lone pair' electron repulsions?2024 (Memory Based Paper 2)Molecular Orbital Theory
  4. 4Intramolecular hydrogen bonding is found in2024 (Memory Based Paper 3)Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  5. 5The hybridisation scheme for the central atom includes a -orbital contribution in2024 (Memory Based Paper 3)Hybridisation and VSEPR Theory
  6. 6In the following species, how many species have same magnetic moment? (i) (ii) (iii) (iv) (v) (vi) (vii)2024 (Memory Based Paper 3)Molecular Orbital Theory
  7. 7The spin only magnetic moment of ion (in BM) is approximately.2024 (Memory Based Paper 3)Molecular Orbital Theory
  8. 8Which of the following pairs will form the most stable ionic bond?2023 (Memory Based Paper 1)Ionic bond
  9. 9Energy required to completely separate one mole of a solid ionic compound into gaseous. constituent ions is called2023 (Memory Based Paper 2)Ionic bond
  10. 10and can be compared in terms of2022Hybridisation and VSEPR Theory
  11. 11In which pair or pairs is the stronger bond found in the first species? I. ; II. III.2022Hybridisation and VSEPR Theory
  12. 12In the molecules and2022Hybridisation and VSEPR Theory
  13. 13Which one of the following ions has the maximum magnetic moment?2021Covalent and Co-ordinate Bonding
  14. 14Which of the following represents the correct order of bond lengths in2021Covalent and Co-ordinate Bonding
  15. 15Which of the following has the highest bonding tendency?2021Covalent and Co-ordinate Bonding
  16. 16Which of the following does not contain any coordinate bond?2021Covalent and Co-ordinate Bonding
  17. 17Which of the following set contains species having same angle around the central atom?2021Hybridisation and VSEPR Theory
  18. 18In the number of lone pairs on are respectively2021Hybridisation and VSEPR Theory
  19. 19Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding?2021Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  20. 20In the reaction , the change in hybridisation is from2020Hybridisation and VSEPR Theory
  21. 21The incorrect statement about carbonate CO 3 2 - ion is,2018Hybridisation and VSEPR Theory
  22. 22Which substance has a dipole moment?2018Dipole moment
  23. 23Which of the following diatomic molecules would be stabilised by the removal of an electron?2018Hybridisation and VSEPR Theory
  24. 24Valence electrons in the element A are 3 and that in element B are 6 . Most probable compound formed from A and B is2018Covalent and Co-ordinate Bonding
  25. 25Which of the following are isoelectronic species? I. C + H 3 II. NH 2 - III. NH 4 + IV. NH 32017Covalent and Co-ordinate Bonding
  26. 26Which of the following show maximum bond-order?2017Hybridisation and VSEPR Theory
  27. 27In the formal charge on each oxygen atom and the bond order respectively are2016Molecular Orbital Theory
  28. 28The boiling point of alkyl halide are higher than those of corresponding alkanes because of2015Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  29. 29Which one of the following does not follow octate rule?2015Covalent and Co-ordinate Bonding
  30. 30Which of the following molecule/ion has all the three types of bonds, electrovalent, covalent and co-ordinate:2015Covalent and Co-ordinate Bonding
  31. 31Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?2014Hybridisation and VSEPR Theory
  32. 32and are converted into mono anions, and respectively. Which of the following statements is wrong ?2014Molecular Orbital Theory
  33. 33The correct order of increasing bond length is:2014Molecular Orbital Theory
  34. 34Using MOT, which of the following pairs denote paramagnetic species?2013Molecular Orbital Theory
  35. 35The vapour pressure of is higher than due to2012Dipole moment
  36. 36Bond enthalpies of and are in the ratio 2: 1: 2 . If enthalpy of formation of is the bond enthalpy of is2012Molecular Orbital Theory
  37. 37The boiling point of water is exceptionally high because2012Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  38. 38bonded molecule is T-shaped. The number of non bonded pair of electrons is2011Hybridisation and VSEPR Theory
  39. 39The correct bond order in the following species is:2011Molecular Orbital Theory
  40. 40Which of the following statements is/are true? 1. and do not exist. 2. bond is present in 3. has bent geometry. 4. and , have same shape.2010Hybridisation and VSEPR Theory
  41. 41Which of the following two are isostructural?2009Hybridisation and VSEPR Theory
  42. 42Which of the following has zero dipole moment?2009Dipole moment
  43. 43Interparticle forces present in nylon 66 are2009Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding

Frequently Asked Questions

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

This chapter includes 43 questions compiled from BITSAT papers spanning 2009 to 2024.

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

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

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

Chemical Bonding and Molecular Structure has appeared in 15 of the 16 years of BITSAT papers covered here, with 43 questions across 18 papers - about 2 per paper it appears in.

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

Of the 43 questions analysed for this chapter, 42% are easy, 51% moderate and 7% tough. 2024 had the most, with 7 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 - 15 questions (35%)
  • Covalent and Co-ordinate Bonding - 9 questions (21%)
  • Molecular Orbital Theory - 9 questions (21%)
  • Hybridisation and VSEPR Theory has produced the most tough questions (2).
6.Is Chemical Bonding and Molecular Structure's weightage in BITSAT going up or down?

Across all 18 papers analysed, Chemical Bonding and Molecular Structure has averaged about 2.4 questions per paper. In the last three years (2022–2024), that average has fallen, at about 2.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.