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Types of Crystalline Solids

Graphite is a...

Question

Graphite is a good conductor of electricity due to ?

A

Its giant tetrahedral polymer structure

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B

Its high refractive index

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C

Presence of free and mobile electrons

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D

High IP value of carbon

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Solution

The correct option is C Presence of free and mobile electrons
Each atom has an electron which has a weak bond with a similar electron of the neighboring layer. These weak bonds can be easily broken and the free electrons thus formed can conduct electricity within a layer. Hence, graphite is a good conductor of electricity.

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