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6. If there are three electron pairs on the central atom, including a lone pair, what is the bond angle?

  • 104.5
  • 130
  • 120
  • 100

7. What is the bond angle in a molecule with four electron pairs, including one lone pair?

  • 104.5
  • 90
  • 107
  • 109.5

8. What can the bond angle be, if a molecule has a bent shape?

  • 104.5 or 120
  • 120 or 109
  • 104.5 or 125
  • 125 or 130

9. If a molecule has a tetrahedral shape, how many electron pairs does it have?

  • Four, including two lone pairs
  • Four, including no lone pairs
  • Three, including one lone pair
  • Two, including no lone pairs
  • Three, including no lone pairs