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