Question

Select correct statement/statements:

• A. Diamond have dangling bond.
• B. Rhombic is most stable sulphur.
• C. Fullerene is purest form of carbon.
• D. All of these

Answer 1

The correct option is A Diamond have dangling bond.

• Atoms at the edge of a crystal that have an unsatisfied valence are said to have "dangling bonds." Many elements, in addition to carbon, can have dangling bonds. Dangling bonds is a subject of current interest because of the impact these structures can have on semiconductor properties.
  
• These dangling bonds are very similar to free radicals, except since they are immobilized in a solid, they are somewhat less reactive than free radicals in solution. Nonetheless, they can react with whatever materials they are exposed to, such as hydrogen, water vapor, oxygen, etc. In addition, if there is a neighboring dangling bond then they can both react with one another to form a bond and satisfy there valence.
  
• Hence option A is correct answer.