JEE Main - Bond order bond length bond energy and metallic bonding Online Test (MCQ Quiz)

1. Which of the following diatomic molecules has the highest bond order?

A) N2 B) O2 C) F2 D) H2

2. As the bond order of a bond increases, what happens to the bond length?

A) Increases B) Decreases C) Remains the same D) Becomes zero

3. Which factor is primarily responsible for the strength of a metallic bond?

A) Ionic attraction between oppositely charged ions B) Sharing of electrons between adjacent atoms C) Electrostatic attraction between positive metal ions and delocalized electrons D) Formation of covalent bonds between metal atoms

4. What is the bond order of the oxygen molecule (O2)?

A) 1 B) 2 C) 3 D) 0

5. Which of the following species has the longest bond length?

A) H2 B) O2 C) N2 D) F2

6. The metallic bond is characterized by the presence of:

A) Localized electron pairs B) A sea of mobile electrons C) Discrete covalent molecules D) Strong dipole-dipole interactions

7. What is the bond order of the nitrogen molecule (N2)?

A) 1 B) 2 C) 3 D) 0

8. Which of the following diatomic molecules has a bond order of 1?

A) O2 B) N2 C) F2 D) He2

9. The bond energy is directly proportional to the:

A) Bond length B) Bond order C) Number of lone pairs D) Atomic radius

10. In a metallic lattice, the metal atoms exist as:

A) Neutral atoms B) Anions C) Cations D) Diatomic molecules

11. What is the bond order of O2+?

A) 1.5 B) 2.0 C) 2.5 D) 3.0

12. Which of the following has the shortest bond length?

A) N2 B) N2+ C) N2- D) N22-

13. The delocalized electrons in metallic bonding are responsible for:

A) Brittleness B) High melting points C) Electrical conductivity D) Low density

14. What is the bond order of H2?

A) 0 B) 0.5 C) 1 D) 2

15. As bond order decreases, bond energy generally:

A) Increases B) Decreases C) Remains constant D) Becomes negative

16. The force that holds metal atoms together in a metallic solid is called:

A) Covalent bond B) Ionic bond C) Hydrogen bond D) Metallic bond

17. Which of the following has the highest bond energy?

A) F2 B) Cl2 C) Br2 D) I2

18. What is the bond order of O2- (superoxide ion)?

A) 1.0 B) 1.5 C) 2.0 D) 2.5

19. Metallic bonding is strongest in metals that have:

A) Few valence electrons per atom B) Many valence electrons per atom C) Large atomic radii D) Low ionization energies

20. The bond order of CO is:

A) 1 B) 2 C) 3 D) 4

21. Which statement about bond length and bond energy is correct?

A) Shorter bond length implies lower bond energy. B) Longer bond length implies higher bond energy. C) Shorter bond length implies higher bond energy. D) Bond length and bond energy are unrelated.

22. In metallic bonding, the positive metal ions are arranged in:

A) A linear chain B) A regular lattice C) A random cluster D) A planar structure

23. What is the bond order of Li2 molecule?

A) 0 B) 0.5 C) 1 D) 2

24. Which of the following diatomic species has a bond order of 0.5?

A) H2 B) He2 C) O2 D) N2

25. The property of malleability and ductility in metals is due to:

A) Strong ionic bonds B) The ability of metal ions to slide past each other within the electron sea C) The rigidity of the crystal lattice D) The presence of localized covalent bonds

26. What is the bond order of O22- (peroxide ion)?

A) 1.0 B) 1.5 C) 2.0 D) 2.5

27. Which species has the longest bond length among the following?

A) N2 B) N2+ C) N2- D) N22-

28. The metallic bond is considered a type of:

A) Covalent bond B) Ionic bond C) Intermolecular force D) Intramolecular force

29. What is the bond order of NO?

A) 1 B) 2 C) 2.5 D) 3

30. If the bond order of a molecule increases, its bond energy:

A) Decreases B) Increases C) Remains unchanged D) Becomes zero

31. In metallic bonding, the valence electrons are:

A) Shared between two specific atoms B) Transferred from one atom to another C) Free to move throughout the metallic lattice D) Localized on individual atoms

32. Which of the following has the highest bond order?

A) O2 B) O2+ C) O2- D) O22-

33. The bond length of H2 molecule is approximately:

A) 74 pm B) 94 pm C) 110 pm D) 139 pm

34. Which of the following is NOT a characteristic of metallic bonding?

A) High electrical conductivity B) High thermal conductivity C) Brittleness D) Luster

35. What is the bond order of CN- ion?

A) 1 B) 2 C) 3 D) 4

36. As the number of bonds between two atoms increases, the bond length:

A) Increases B) Decreases C) Remains constant D) Becomes zero

37. The metallic bond helps to explain why metals are typically:

A) Gases at room temperature B) Poor conductors of heat C) Solids at room temperature (except Mercury) D) Insoluble in most solvents

38. Which of the following has the shortest bond length?

A) F2 B) Cl2 C) Br2 D) I2

39. What is the bond order of O2+?

A) 1.5 B) 2.0 C) 2.5 D) 3.0

40. The concept of a 'sea of electrons' is used to describe:

A) Covalent bonding B) Ionic bonding C) Metallic bonding D) Van der Waals forces

41. Which diatomic molecule has a bond order of 2?

A) N2 B) O2 C) F2 D) H2

42. Bond energy is the energy required to:

A) Form a bond B) Break a bond C) Dissociate a molecule into atoms D) Both (a) and (b)

43. In metallic bonding, the cations are held together by:

A) Shared electron pairs B) Electrostatic attraction to the electron sea C) Hydrogen bonds D) Dipole-dipole interactions

44. What is the bond order of CO+?

A) 2 B) 2.5 C) 3 D) 3.5

45. The bond length of N2 molecule is approximately:

A) 109 pm B) 121 pm C) 147 pm D) 200 pm

46. Which of the following has the lowest bond energy?

A) N2 B) O2 C) F2 D) H2

47. Metallic bonding is a type of:

A) Intermolecular force B) Intramolecular force C) Secondary bond D) Weak chemical bond

48. What is the bond order of He2 molecule?

A) 0 B) 0.5 C) 1 D) 2

49. Which of the following statements about bond order and stability is correct?

A) Higher bond order means lower stability. B) Lower bond order means higher stability. C) Higher bond order means higher stability. D) Bond order does not affect stability.

50. The bond length of O2 molecule is approximately:

A) 112 pm B) 121 pm C) 147 pm D) 200 pm

Bond order bond length bond energy and metallic bonding - Online Test

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