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Types of Crystalline Solids

Graphite is u...

Question

Graphite is used in making electrodes because :

A

It has high melting point.

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B

It soft and slippery.

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C

It is good conductor of electricity.

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D

None of these

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Solution

The correct option is C It is good conductor of electricity.
Graphite is used in making electrodes because it is good conductor of electricity due to the presence of free electrons. One valence electron of each carbon atom remains free and thus it is a good conductor of electricity.

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