Generally, non-metals are not good conductors of electricity.
Which of the following is a good conductor of electricity?
A
Diamond
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B
Graphite
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C
Buckminster fullerene
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D
None of the above
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Solution
The correct option is B Graphite Graphite has a layered planar structure. Carbon atoms in the plane are bonded covalently with only three of the four potential bonding sites. The fourth electron is free to migrate in the plane making graphite electrically conductive.