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Chemistry
10th -
12thgrade
Electron and Molecular Geometries of Molecules
30 questions
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- 1. Multiple Choice
The bond angle for a tetrahedral geometry is ___.
90o
109.5o
120o
180o
- 2. Multiple Choice
What molecular geometry is illustrated here?
tetrahedral
trigonal planar
bent
trigonal pyramidal
- 3. Multiple Choice
Which of the following molecular geometries is NOT included in the image?
tetrahedral
trigonal pyramidal
bent
T-shape
- 4. Multiple Choice
What is the molecular geometry of BCl3?
linear
trigonal planar
tetrahedral
trigonal pyramidal
- 5. Multiple Choice
What is the molecular geometry of the BeCl2 molecule?
linear
bent
trigonal planar
tetrahedral
- 6. Multiple Choice
Which one of the following is the correct bond angle between atoms adopting a trigonal planar geometry?
180°
109.5°
90°
120°
- 7. Multiple Choice
Ammonia, NH3, adopts a tetrahedral geometry. However, the non-bonding pair on the central nitrogen atom distorts the bond angle away from the expected 109.5°. Which of the following statements correctly describes how the bond angle is distorted?
The actual bond angle is reduced: it is less than 109.5°
The actual bond angle is increased: it is more than 109.5°
- 8. Multiple Choice
Which molecular geometry is illustrated above?
trigonal pyramidal
trigonal planar
tetrahedral
bent
- 9. Multiple Choice
Which of the following illustrations shows a trigonal pyramidal geometry?
- 10. Multiple Choice
Which of the following illustrations shows a trigonal planar geometry?
- 11. Multiple Choice
Which of the following illustrations shows a bent geometry?
- 12. Multiple Choice
What is the MOLECULAR geometry of the central oxygen?
linear
trigonal planar
bent
tetrahedral
- 13. Multiple Choice
Identify the molecular geometry illustrated here.
square planar
square pyramidal
octahedral
tetrahedral
- 14. Multiple Choice
What is the molecular geometry illustrated here?
hexahedral
square pyramidal
octahedral
T-shape
- 15. Multiple Choice
What is the molecular geometry illustrated here?
trigonal bipyramidal
octahedral
T-shape
square pyramidal
- 16. Multiple Choice
Which of the following represents a seesaw molecular geometry?
- 17. Multiple Choice
Which of the following represents an octahedral molecular geometry?
- 18. Multiple Choice
Which of the following represents a t-shape molecular geometry?
- 19. Multiple Choice
According to the VSEPR theory, the covalent compound shown above will have which of the following molecular geometries?
Tetrahedral
Octahedral
Trigonal pyramidal
Trigonal planar
- 20. Multiple Choice
Which of the following molecules would be predicted to have the largest bond angle based on the valence shell electron pair repulsion theory?
- 21. Multiple ChoiceA lone pair is defined asA pair of bonding electronsOne non-bonding electronA pair of non-bonding electronsA pair of electrons on the central atom
- 22. Multiple ChoiceWhat is the VSEPR theory used to predict?Bond StrengthPolarityMolecular ShapeElectronegativity
- 23. Multiple ChoiceWhich molecule would have this molecular geometry?BF3CH4PCl5CO2
- 24. Multiple ChoiceWho could this be?CO2NH3H2SCH4
- 25. Multiple ChoiceWho could this be?H2ONH3CO2CH4
- 26. Multiple ChoiceA molecule with a lone pair on the central atom would have the same electron and molecular geometryTrueFalse
- 27. Multiple ChoiceDetermine the electron geometry (eg) and molecular geometry (mg) of XeF4 (Lewis structure is shown) .eg = tetrahedral, mg = tetrahedraleg = linear, mg = lineareg = octahedral, mg = square planareg = trigonal bipyramidal, mg = tetrahedral
- 28. Multiple Choice
3 atoms bonded and 0 lone pairs
linear
trigonal planar
bent
tetrahedral
trigonal pyramidal
- 29. Multiple ChoiceHow many lone pairs are in this molecule's structure?6204
- 30. Multiple Choice
Draw the Lewis Dot structure for SF4 and determine its predicted molecular geometry.
square planar
trigonal bipyramidal
see-saw
tetrahedral
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