First slide

Conductors, semi conductors and insulators

Question

Which of the following is conductor of electricity

Easy

A

diamond
B

graphite
C

carborundum
D

silica

Solution

Graphite is a non metal,and is an electronic conductor.
Carbon atom in Graphite is sp² hybridised.Each carbon atom is having a pure p - orbital containing unpaired electron, which is delocalised in the layer lattice.
Thus graphite is a non metal and is an electronic conductor.

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