JEE Main - VSEPR theory molecular shapes and hybridization concepts Online Test (MCQ Quiz)

1. Which of the following molecules has a trigonal planar geometry according to VSEPR theory?

A) NH3 B) H2O C) BF3 D) CH4

2. In the SF6 molecule, sulfur is bonded to six fluorine atoms. What is the hybridization of the sulfur atom?

A) sp3 B) sp3d C) sp3d2 D) d2sp3

3. What is the predicted molecular geometry of water (H2O) using VSEPR theory?

A) Linear B) Bent C) Trigonal planar D) Tetrahedral

4. Which of the following is NOT an assumption of VSEPR theory?

A) Electron pairs arrange themselves to minimize repulsion. B) Lone pairs occupy more space than bonding pairs. C) Bond angles are independent of the number of lone pairs. D) Double and triple bonds occupy the same amount of space as single bonds.

5. What is the hybridization of the central carbon atom in methane (CH4)?

A) sp B) sp2 C) sp3 D) d2sp3

6. According to VSEPR theory, a molecule with two bonding pairs and two lone pairs around the central atom will have which molecular geometry?

A) Linear B) Trigonal planar C) Tetrahedral D) Bent

7. The hybridization of the central atom in BeCl2 is:

A) sp B) sp2 C) sp3 D) sp3d

8. Which of the following molecules has a linear molecular geometry?

A) H2O B) CO2 C) NH3 D) SO2

9. In PCl5, the central phosphorus atom has five bonding pairs and zero lone pairs. What is its molecular geometry?

A) Octahedral B) Trigonal bipyramidal C) Tetrahedral D) Square pyramidal

10. What is the hybridization of the central atom in BF3?

A) sp B) sp2 C) sp3 D) sp3d

11. A molecule with three bonding pairs and one lone pair around the central atom will have which molecular geometry?

A) Trigonal planar B) Tetrahedral C) Trigonal pyramidal D) Bent

12. Which of the following best describes the electron geometry of ammonia (NH3)?

A) Linear B) Trigonal planar C) Tetrahedral D) Trigonal bipyramidal

13. The hybridization of the central atom in XeF4 is:

A) sp3 B) sp3d C) sp3d2 D) d2sp3

14. Which molecule exhibits square planar geometry?

A) SF4 B) XeF4 C) IF5 D) BrF3

15. In VSEPR theory, which interaction causes the greatest repulsion?

A) Lone pair-Lone pair B) Lone pair-Bonding pair C) Bonding pair-Bonding pair D) All repulsions are equal

16. What is the hybridization of the central oxygen atom in ozone (O3)?

A) sp B) sp2 C) sp3 D) d2sp3

17. The molecular geometry of IF5 is:

A) Trigonal bipyramidal B) Square pyramidal C) Octahedral D) Pentagonal planar

18. Which of the following has sp hybridization?

A) H2O B) CO2 C) BF3 D) CH4

19. According to VSEPR theory, the bond angle in H2O is slightly less than the ideal tetrahedral angle due to:

A) The presence of two lone pairs on oxygen. B) The presence of two bonding pairs on oxygen. C) The electronegativity difference between oxygen and hydrogen. D) The small size of hydrogen atoms.

20. The hybridization of the central atom in PCl3 is:

A) sp B) sp2 C) sp3 D) sp3d

21. Which molecule has a trigonal bipyramidal electron geometry?

A) SF6 B) PCl5 C) XeF4 D) CH4

22. What is the molecular geometry of SO2?

A) Linear B) Bent C) Trigonal planar D) Tetrahedral

23. The hybridization of the central atom in I3- ion is:

A) sp B) sp2 C) sp3 D) sp3d

24. Which of the following molecules has a tetrahedral molecular geometry?

A) BF3 B) NH3 C) CH4 D) H2O

25. In SF4, the sulfur atom has four bonding pairs and one lone pair. What is its molecular geometry?

A) Tetrahedral B) Trigonal bipyramidal C) Seesaw D) T-shaped

26. The hybridization of the central atom in CO2 is:

A) sp B) sp2 C) sp3 D) d2sp3

27. Which of the following statements about VSEPR theory is incorrect?

A) It predicts the shape of molecules based on electron pair repulsion. B) Lone pairs repel more strongly than bonding pairs. C) It considers only valence electrons. D) It is primarily used for transition metal complexes.

28. What is the molecular geometry of BrF3?

A) Bent B) T-shaped C) Trigonal planar D) Linear

29. The hybridization of the central atom in NH3 is:

A) sp B) sp2 C) sp3 D) sp3d

30. Which electron geometry corresponds to six electron domains around the central atom?

A) Tetrahedral B) Trigonal bipyramidal C) Octahedral D) Square planar

31. The molecular geometry of XeF2 is:

A) Bent B) Linear C) T-shaped D) Trigonal planar

32. In the hybridization scheme, which orbitals combine to form sp2 hybrid orbitals?

A) One s and one p orbital B) One s and two p orbitals C) One s and three p orbitals D) One s, three p, and one d orbital

33. What is the electron geometry of BF3?

A) Linear B) Trigonal planar C) Tetrahedral D) Trigonal bipyramidal

34. Which of the following molecules has polar bonds but is nonpolar overall?

A) H2O B) NH3 C) CO2 D) HCl

35. The hybridization of the central atom in SO2 is:

A) sp B) sp2 C) sp3 D) sp3d

36. In VSEPR theory, what is the arrangement of electron domains around a central atom with two bonding pairs and no lone pairs?

A) Bent B) Linear C) Trigonal planar D) Tetrahedral

37. What is the electron geometry of CH4?

A) Linear B) Trigonal planar C) Tetrahedral D) Octahedral

38. The hybridization of the central atom in PCl5 is:

A) sp3 B) sp3d C) sp3d2 D) d2sp3

39. Which of the following molecules has a bent molecular geometry and sp2 hybridization on the central atom?

A) CO2 B) H2O C) SO2 D) BF3

40. In the ICl2- ion, what is the hybridization of the central iodine atom?

A) sp B) sp2 C) sp3 D) sp3d

41. According to VSEPR theory, the bond angles in a molecule with trigonal planar electron geometry are approximately:

A) 90 degrees B) 109.5 degrees C) 120 degrees D) 180 degrees

42. Which molecule has octahedral electron geometry and octahedral molecular geometry?

A) SF6 B) XeF4 C) IF5 D) PCl5

43. What is the hybridization of the central atom in C2H2 (acetylene)?

A) sp B) sp2 C) sp3 D) d2sp3

44. The molecular geometry of SO3 is:

A) Linear B) Bent C) Trigonal planar D) Tetrahedral

45. Which of the following pairs correctly matches a molecule with its hybridization and molecular geometry?

A) H2O: sp3, Tetrahedral B) CO2: sp, Linear C) NH3: sp2, Trigonal planar D) BF3: sp3, Trigonal pyramidal

46. A central atom with five electron domains, consisting of three bonding pairs and two lone pairs, will have which molecular geometry?

A) T-shaped B) Linear C) Trigonal planar D) Trigonal bipyramidal

47. What is the hybridization of the central atom in SiCl4?

A) sp B) sp2 C) sp3 D) sp3d

48. The VSEPR model predicts that the bond angle in PCl3 will be:

A) Exactly 109.5 degrees B) Slightly less than 109.5 degrees C) Exactly 120 degrees D) Slightly less than 120 degrees

49. Which molecule exhibits T-shaped molecular geometry?

A) SF4 B) BrF3 C) XeF4 D) IF5

50. The hybridization of the central atom in NO3- ion is:

A) sp B) sp2 C) sp3 D) sp3d

VSEPR theory molecular shapes and hybridization concepts - Online Test

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