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Polyhedral Boranes as Superacids
Contributed by: Bingham
  • 1. What are polyhedral boranes?
A) Ionic compounds of boron
B) Metallic compounds of boron
C) Chain compounds of boron
D) Cluster compounds of boron and hydrogen
  • 2. What role do polyhedral boranes play in organic synthesis?
A) They can be used as catalysts or reagents
B) They are inert in organic reactions
C) They are only used as solvents
D) They act as radical initiators
  • 3. What is the most widely studied class of polyhedral boranes?
A) Boronates
B) Iodoboranes
C) Fluoroboranes
D) Carboranes
  • 4. Which element is typically found at the center of most polyhedral boranes?
A) Boron
B) Nitrogen
C) Sulfur
D) Carbon
  • 5. What is the origin of the term 'carborane'?
A) Carbon and boron
B) Carbide and boron
C) Carbohydrate and boron
D) Carboxylic acid and boron
  • 6. What role do fluorinated polyhedral boranes play in MRI contrast agents?
A) They enhance contrast in MRI imaging
B) They reduce contrast in MRI imaging
C) They have no effect on MRI imaging
D) They cause interference in MRI imaging
  • 7. Which Nobel Prize-winning scientist contributed significantly to the study of boranes?
A) Nikola Tesla
B) Herbert C. Brown
C) Albert Einstein
D) Marie Curie
  • 8. Which property contributes to the thermal stability of polyhedral boranes?
A) The cage-like structure
B) Presence of double bonds
C) Lone pair availability on boron atoms
D) High reactivity with water
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