Which of the following has the highest electrical conductivity?
Correct answer: B. Solid graphite
- A. Aqueous sugar solution
- B. Solid graphite
- C. Solid sodium chloride
- D. Gaseous carbon dioxide
Explanation
Graphite is an allotrope of carbon and is known for its high electrical conductivity. The carbon atoms in graphite are arranged in a layered structure, forming sheets of hexagonal rings. These sheets have delocalized electrons that can move freely along the layers, allowing for efficient electron flow and high electrical conductivity. Therefore, solid graphite has a high electrical conductivity.
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