Question

Even though it is a non-metal, graphite conducts electricity. It is due to the presence of :

• A. free electrons
• B. bonded electrons
• C. its bond length
• D. none of these

Answer 1

The correct option is A free electrons

Conductivity in non-metals is generally low due to the absence of free electrons.

Graphite conducts electricity because it has free electrons.

The carbon in graphite show $s{p}^2$ hybridization, thus it has one unhybridized p-electron.

This unhybridized electron move over the surface of the graphite causing graphite to conduct electricity.